diff --git a/ckpts/universal/global_step20/zero/8.mlp.dense_4h_to_h.weight/exp_avg_sq.pt b/ckpts/universal/global_step20/zero/8.mlp.dense_4h_to_h.weight/exp_avg_sq.pt new file mode 100644 index 0000000000000000000000000000000000000000..403e6d180e920ea2c8d5a392e413d8ba54536699 --- /dev/null +++ b/ckpts/universal/global_step20/zero/8.mlp.dense_4h_to_h.weight/exp_avg_sq.pt @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:8fbeb14f061a13d56478cbd35cc6559ba3db71af4a967cccb7c57836a8c7bfb4 +size 33555627 diff --git a/ckpts/universal/global_step20/zero/9.attention.dense.weight/exp_avg_sq.pt b/ckpts/universal/global_step20/zero/9.attention.dense.weight/exp_avg_sq.pt new file mode 100644 index 0000000000000000000000000000000000000000..cb61673f7e73b80faff4dd2176f5c5376d22d10c --- /dev/null +++ b/ckpts/universal/global_step20/zero/9.attention.dense.weight/exp_avg_sq.pt @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:fe8bc781cef30250dca4fd0478bd1dbd45684da0731128585fefda573e190cc1 +size 16778411 diff --git a/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/config.yaml b/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/config.yaml new file mode 100644 index 0000000000000000000000000000000000000000..8a4055b751ea7c1d0d72ef65acfe1b3a04f49160 --- /dev/null +++ b/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/config.yaml @@ -0,0 +1,43 @@ +wandb_version: 1 + +_wandb: + desc: null + value: + python_version: 3.10.12 + cli_version: 0.17.0 + framework: huggingface + huggingface_version: 4.41.0 + is_jupyter_run: false + is_kaggle_kernel: false + start_time: 1716403768 + t: + 1: + - 1 + - 5 + - 11 + - 49 + - 51 + - 53 + - 55 + - 71 + - 98 + - 100 + 2: + - 1 + - 5 + - 11 + - 49 + - 51 + - 53 + - 55 + - 71 + - 98 + - 100 + 3: + - 23 + 4: 3.10.12 + 5: 0.17.0 + 6: 4.41.0 + 8: + - 5 + 13: linux-x86_64 diff --git a/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/output.log b/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/output.log new file mode 100644 index 0000000000000000000000000000000000000000..898b0911f0bfe2efcd02436f8ff37fb4fdd906b8 --- /dev/null +++ b/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/output.log @@ -0,0 +1,34 @@ + +2024-05-22:18:49:28,921 INFO [__main__.py:251] Verbosity set to INFO +2024-05-22:18:49:37,334 INFO [__main__.py:335] Selected Tasks: ['arc_easy', 'hellaswag', 'mrpc', 'openbookqa', 'sst2', 'winogrande'] +2024-05-22:18:49:37,335 INFO [evaluator.py:131] Setting random seed to 0 | Setting numpy seed to 1234 | Setting torch manual seed to 1234 +2024-05-22:18:49:37,335 INFO [evaluator.py:177] Initializing hf model, with arguments: {'pretrained': '/mnt/weka/peacock/experiments/llama/checkpoint/llamav2-3b//hf_ckpt//global_step14000'} +2024-05-22:18:49:39,753 INFO [huggingface.py:164] Using device 'cuda' +Traceback (most recent call last): + File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main + return _run_code(code, main_globals, None, + File "/usr/lib/python3.10/runpy.py", line 86, in _run_code + exec(code, run_globals) + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/__main__.py", line 417, in + cli_evaluate() + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/__main__.py", line 341, in cli_evaluate + results = evaluator.simple_evaluate( + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/utils.py", line 288, in _wrapper + return fn(*args, **kwargs) + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/evaluator.py", line 180, in simple_evaluate + lm = lm_eval.api.registry.get_model(model).create_from_arg_string( + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/api/model.py", line 134, in create_from_arg_string + return cls(**args, **args2) + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/models/huggingface.py", line 190, in __init__ + self._get_config( + File "/mnt/weka/peacock/idc/cronscript/lm-evaluation-harness/lm_eval/models/huggingface.py", line 471, in _get_config + self._config = transformers.AutoConfig.from_pretrained( + File "/usr/local/lib/python3.10/dist-packages/transformers/models/auto/configuration_auto.py", line 934, in from_pretrained + config_dict, unused_kwargs = PretrainedConfig.get_config_dict(pretrained_model_name_or_path, **kwargs) + File "/usr/local/lib/python3.10/dist-packages/transformers/configuration_utils.py", line 632, in get_config_dict + config_dict, kwargs = cls._get_config_dict(pretrained_model_name_or_path, **kwargs) + File "/usr/local/lib/python3.10/dist-packages/transformers/configuration_utils.py", line 689, in _get_config_dict + resolved_config_file = cached_file( + File "/usr/local/lib/python3.10/dist-packages/transformers/utils/hub.py", line 370, in cached_file + raise EnvironmentError( +OSError: /mnt/weka/peacock/experiments/llama/checkpoint/llamav2-3b//hf_ckpt//global_step14000 does not appear to have a file named config.json. Checkout 'https://huggingface.co//mnt/weka/peacock/experiments/llama/checkpoint/llamav2-3b//hf_ckpt//global_step14000/tree/main' for available files. \ No newline at end of file diff --git a/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/requirements.txt b/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/requirements.txt new file mode 100644 index 0000000000000000000000000000000000000000..a3573b3bbfd5b190fed4ccaed4ac2846002aec22 --- /dev/null +++ b/lm-evaluation-harness/wandb/run-20240522_184928-kt8p2r8k/files/requirements.txt @@ -0,0 +1,155 @@ +DataProperty==1.0.1 +GitPython==3.1.43 +Jinja2==3.1.4 +Markdown==3.6 +MarkupSafe==2.1.5 +Pillow-SIMD==7.0.0.post3 +PyYAML==6.0 +Werkzeug==3.0.3 +absl-py==2.1.0 +accelerate==0.30.1 +aiohttp==3.9.5 +aiosignal==1.3.1 +async-timeout==4.0.3 +attrs==23.2.0 +av==9.2.0 +cachetools==5.3.3 +certifi==2024.2.2 +cffi==1.15.1 +cfgv==3.4.0 +chardet==5.2.0 +charset-normalizer==3.3.2 +click==8.1.7 +cmake==3.29.2 +colorama==0.4.6 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desc: null + value: + arc_easy: + task: arc_easy + group: + - ai2_arc + dataset_path: allenai/ai2_arc + dataset_name: ARC-Easy + training_split: train + validation_split: validation + test_split: test + doc_to_text: 'Question: {{question}} + + Answer:' + doc_to_target: '{{choices.label.index(answerKey)}}' + doc_to_choice: '{{choices.text}}' + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + aggregation: mean + higher_is_better: true + - metric: acc_norm + aggregation: mean + higher_is_better: true + output_type: multiple_choice + repeats: 1 + should_decontaminate: true + doc_to_decontamination_query: 'Question: {{question}} + + Answer:' + metadata: + version: 1.0 + boolq: + task: boolq + group: + - super-glue-lm-eval-v1 + dataset_path: super_glue + dataset_name: boolq + training_split: train + validation_split: validation + doc_to_text: '{{passage}} + + Question: {{question}}? + + Answer:' + doc_to_target: label + doc_to_choice: + - 'no' + - 'yes' + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + output_type: multiple_choice + repeats: 1 + should_decontaminate: true + doc_to_decontamination_query: passage + metadata: + version: 2.0 + copa: + task: copa + group: + - super-glue-lm-eval-v1 + dataset_path: super_glue + dataset_name: copa + training_split: train + validation_split: validation + doc_to_text: "def doc_to_text(doc):\n # Drop the period\n connector =\ + \ {\n \"cause\": \"because\",\n \"effect\": \"therefore\",\n\ + \ }[doc[\"question\"]]\n return doc[\"premise\"].strip()[:-1] + f\"\ + \ {connector}\"\n" + doc_to_target: "def doc_to_target(doc):\n correct_choice = doc[\"choice1\"\ + ] if doc[\"label\"] == 0 else doc[\"choice2\"]\n # Connect the sentences\n\ + \ return \" \" + convert_choice(correct_choice)\n" + doc_to_choice: "def doc_to_choice(doc):\n return [\" \" + convert_choice(doc[\"\ + choice1\"]), \" \" + convert_choice(doc[\"choice2\"])]\n" + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + output_type: multiple_choice + repeats: 1 + should_decontaminate: false + metadata: + version: 1.0 + mrpc: + task: mrpc + group: glue + dataset_path: glue + dataset_name: mrpc + training_split: train + validation_split: validation + doc_to_text: 'Sentence 1: {{sentence1}} + + Sentence 2: {{sentence2}} + + Question: Do both sentences mean the same thing? + + Answer:' + doc_to_target: label + doc_to_choice: + - 'no' + - 'yes' + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + - metric: f1 + output_type: multiple_choice + repeats: 1 + should_decontaminate: false + metadata: + version: 1.0 + piqa: + task: piqa + dataset_path: piqa + training_split: train + validation_split: validation + doc_to_text: 'Question: {{goal}} + + Answer:' + doc_to_target: label + doc_to_choice: '{{[sol1, sol2]}}' + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + aggregation: mean + higher_is_better: true + - metric: acc_norm + aggregation: mean + higher_is_better: true + output_type: multiple_choice + repeats: 1 + should_decontaminate: true + doc_to_decontamination_query: goal + metadata: + version: 1.0 + sst2: + task: sst2 + group: glue + dataset_path: glue + dataset_name: sst2 + training_split: train + validation_split: validation + doc_to_text: '{{sentence}} + + Question: Is this sentence positive or negative? + + Answer:' + doc_to_target: label + doc_to_choice: + - negative + - positive + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + output_type: multiple_choice + repeats: 1 + should_decontaminate: false + metadata: + version: 1.0 + winogrande: + task: winogrande + dataset_path: winogrande + dataset_name: winogrande_xl + training_split: train + validation_split: validation + doc_to_text: "def doc_to_text(doc):\n answer_to_num = {\"1\": 0, \"2\": 1}\n\ + \ return answer_to_num[doc[\"answer\"]]\n" + doc_to_target: "def doc_to_target(doc):\n idx = doc[\"sentence\"].index(\"\ + _\") + 1\n return doc[\"sentence\"][idx:].strip()\n" + doc_to_choice: "def doc_to_choice(doc):\n idx = doc[\"sentence\"].index(\"\ + _\")\n options = [doc[\"option1\"], doc[\"option2\"]]\n return [doc[\"\ + sentence\"][:idx] + opt for opt in options]\n" + description: '' + target_delimiter: ' ' + fewshot_delimiter: ' + + + ' + num_fewshot: 0 + metric_list: + - metric: acc + aggregation: mean + higher_is_better: true + output_type: multiple_choice + repeats: 1 + should_decontaminate: true + doc_to_decontamination_query: sentence + metadata: + version: 1.0 +cli_configs: + desc: null + value: + model: hf + model_args: pretrained=/mnt/weka/peacock/experiments/llama/eval/checkpoint-english/llamav2-3b/hf/global_step70000,tokenizer=/mnt/weka/peacock/tokenization/trained-tokenizer/enhiben_50k_hf/ConvertedTokenizer + batch_size: auto + batch_sizes: + - 64 + device: null + use_cache: null + limit: null + bootstrap_iters: 100000 + gen_kwargs: null diff --git a/lm-evaluation-harness/wandb/run-20240530_125927-wg4623zd/files/media/table/evaluation/eval_results_1_9c87687b44ab0685fb7b.table.json b/lm-evaluation-harness/wandb/run-20240530_125927-wg4623zd/files/media/table/evaluation/eval_results_1_9c87687b44ab0685fb7b.table.json new file mode 100644 index 0000000000000000000000000000000000000000..9ac1683e5407aa9c8bb0a5b94f30a612fd15e80d --- /dev/null +++ b/lm-evaluation-harness/wandb/run-20240530_125927-wg4623zd/files/media/table/evaluation/eval_results_1_9c87687b44ab0685fb7b.table.json @@ -0,0 +1 @@ +{"columns": ["Tasks", "Version", "Filter", "num_fewshot", "Metric", "Value", "Stderr"], "data": [["winogrande", 1.0, "none", 0, "acc", "0.4861878453038674", "0.0140"], ["sst2", 1.0, "none", 0, "acc", "0.49655963302752293", "0.0169"], ["piqa", 1.0, "none", 0, "acc", "0.5136017410228509", "0.0117"], ["piqa", 1.0, "none", 0, "acc_norm", "0.48258977149075083", "0.0117"], ["mrpc", 1.0, "none", 0, "acc", "0.3161764705882353", "0.0230"], ["mrpc", 1.0, "none", 0, "f1", "0.0", "0.0000"], ["copa", 1.0, "none", 0, "acc", "0.6", "0.0492"], ["boolq", 2.0, "none", 0, "acc", "0.37767584097859325", "0.0085"], ["arc_easy", 1.0, "none", 0, "acc", "0.2529461279461279", "0.0089"], ["arc_easy", 1.0, "none", 0, "acc_norm", "0.25336700336700335", "0.0089"]]} \ No newline at end of file diff --git a/lm-evaluation-harness/wandb/run-20240530_125927-wg4623zd/files/output.log b/lm-evaluation-harness/wandb/run-20240530_125927-wg4623zd/files/output.log new file mode 100644 index 0000000000000000000000000000000000000000..ac51d127c8c7ce12280ebf455ea20014fe8c1ea6 --- /dev/null +++ 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It manages the memory internally in an effcient way. + warnings.warn( +Special tokens have been added in the vocabulary, make sure the associated word embeddings are fine-tuned or trained. +Downloading readme: 100%|██████████| 9.00k/9.00k [00:00<00:00, 14.1MB/s] +Downloading data: 100%|██████████| 331k/331k [00:00<00:00, 1.86MB/s] +Downloading data: 100%|██████████| 346k/346k [00:00<00:00, 4.59MB/s] +Downloading data: 100%|██████████| 86.1k/86.1k [00:00<00:00, 1.14MB/s] +Generating train split: 100%|██████████| 2251/2251 [00:00<00:00, 42582.05 examples/s] +Generating test split: 100%|██████████| 2376/2376 [00:00<00:00, 331415.57 examples/s] +Generating validation split: 100%|██████████| 570/570 [00:00<00:00, 152861.46 examples/s] +2024-05-30:13:00:10,175 WARNING [task.py:763] [Task: boolq] metric acc is defined, but aggregation is not. using default aggregation=mean +2024-05-30:13:00:10,175 WARNING [task.py:775] [Task: boolq] metric acc is defined, but higher_is_better is not. using default higher_is_better=True +/usr/local/lib/python3.10/dist-packages/datasets/load.py:1486: FutureWarning: The repository for super_glue contains custom code which must be executed to correctly load the dataset. You can inspect the repository content at https://hf.co/datasets/super_glue +You can avoid this message in future by passing the argument `trust_remote_code=True`. +Passing `trust_remote_code=True` will be mandatory to load this dataset from the next major release of `datasets`. + warnings.warn( +Downloading builder script: 100%|██████████| 30.7k/30.7k [00:00<00:00, 41.1MB/s] +Downloading readme: 100%|██████████| 18.2k/18.2k [00:00<00:00, 30.5MB/s] +Downloading data: 100%|██████████| 4.12M/4.12M [00:00<00:00, 17.5MB/s] +Generating train split: 100%|██████████| 9427/9427 [00:00<00:00, 22302.36 examples/s] +Generating validation split: 100%|██████████| 3270/3270 [00:00<00:00, 19757.63 examples/s] +Generating test split: 100%|██████████| 3245/3245 [00:00<00:00, 22659.61 examples/s] +2024-05-30:13:00:14,119 WARNING [task.py:763] [Task: copa] metric acc is defined, but aggregation is not. using default aggregation=mean +2024-05-30:13:00:14,119 WARNING [task.py:775] [Task: copa] metric acc is defined, but higher_is_better is not. using default higher_is_better=True +Downloading data: 100%|██████████| 44.0k/44.0k [00:00<00:00, 48.8MB/s] +Generating train split: 100%|██████████| 400/400 [00:00<00:00, 16209.24 examples/s] +Generating validation split: 100%|██████████| 100/100 [00:00<00:00, 12743.22 examples/s] +Generating test split: 100%|██████████| 500/500 [00:00<00:00, 17484.13 examples/s] +2024-05-30:13:00:16,198 WARNING [task.py:763] [Task: mrpc] metric acc is defined, but aggregation is not. using default aggregation=mean +2024-05-30:13:00:16,198 WARNING [task.py:775] [Task: mrpc] metric acc is defined, but higher_is_better is not. using default higher_is_better=True +2024-05-30:13:00:16,198 WARNING [task.py:763] [Task: mrpc] metric f1 is defined, but aggregation is not. using default aggregation=f1 +2024-05-30:13:00:16,198 WARNING [task.py:775] [Task: mrpc] metric f1 is defined, but higher_is_better is not. using default higher_is_better=True +Downloading readme: 100%|██████████| 35.3k/35.3k [00:00<00:00, 42.5MB/s] +Downloading data: 100%|██████████| 649k/649k [00:00<00:00, 4.44MB/s] +Downloading data: 100%|██████████| 75.7k/75.7k [00:00<00:00, 513kB/s] +Downloading data: 100%|██████████| 308k/308k [00:00<00:00, 1.43MB/s] +Generating train split: 100%|██████████| 3668/3668 [00:00<00:00, 409930.91 examples/s] +Generating validation split: 100%|██████████| 408/408 [00:00<00:00, 174655.65 examples/s] +Generating test split: 100%|██████████| 1725/1725 [00:00<00:00, 384440.72 examples/s] +/usr/local/lib/python3.10/dist-packages/datasets/load.py:1486: FutureWarning: The repository for piqa contains custom code which must be executed to correctly load the dataset. You can inspect the repository content at https://hf.co/datasets/piqa +You can avoid this message in future by passing the argument `trust_remote_code=True`. +Passing `trust_remote_code=True` will be mandatory to load this dataset from the next major release of `datasets`. + warnings.warn( +Downloading builder script: 100%|██████████| 5.36k/5.36k [00:00<00:00, 12.1MB/s] +Downloading readme: 100%|██████████| 8.41k/8.41k [00:00<00:00, 17.3MB/s] +Downloading data: 100%|██████████| 1.82M/1.82M [00:00<00:00, 4.17MB/s] +Downloading data: 100%|██████████| 815k/815k [00:00<00:00, 23.8MB/s] +Generating train split: 100%|██████████| 16113/16113 [00:00<00:00, 24119.62 examples/s] +Generating test split: 100%|██████████| 3084/3084 [00:00<00:00, 24246.44 examples/s] +Generating validation split: 100%|██████████| 1838/1838 [00:00<00:00, 24180.73 examples/s] +2024-05-30:13:00:26,733 WARNING [task.py:763] [Task: sst2] metric acc is defined, but aggregation is not. using default aggregation=mean +2024-05-30:13:00:26,733 WARNING [task.py:775] [Task: sst2] metric acc is defined, but higher_is_better is not. using default higher_is_better=True +Downloading data: 100%|██████████| 3.11M/3.11M [00:00<00:00, 21.0MB/s] +Downloading data: 100%|██████████| 72.8k/72.8k [00:00<00:00, 510kB/s] +Downloading data: 100%|██████████| 148k/148k [00:00<00:00, 1.02MB/s] +Generating train split: 100%|██████████| 67349/67349 [00:00<00:00, 1427196.66 examples/s] +Generating validation split: 100%|██████████| 872/872 [00:00<00:00, 378107.42 examples/s] +Generating test split: 100%|██████████| 1821/1821 [00:00<00:00, 413414.21 examples/s] +/usr/local/lib/python3.10/dist-packages/datasets/load.py:1486: FutureWarning: The repository for winogrande contains custom code which must be executed to correctly load the dataset. You can inspect the repository content at https://hf.co/datasets/winogrande +You can avoid this message in future by passing the argument `trust_remote_code=True`. +Passing `trust_remote_code=True` will be mandatory to load this dataset from the next major release of `datasets`. + warnings.warn( +Downloading builder script: 100%|██████████| 5.65k/5.65k [00:00<00:00, 12.4MB/s] +Downloading readme: 100%|██████████| 9.97k/9.97k [00:00<00:00, 20.5MB/s] +Downloading data: 100%|██████████| 3.40M/3.40M [00:00<00:00, 7.08MB/s] +Generating train split: 100%|██████████| 40398/40398 [00:01<00:00, 24456.13 examples/s] +Generating test split: 100%|██████████| 1767/1767 [00:00<00:00, 24232.17 examples/s] +Generating validation split: 100%|██████████| 1267/1267 [00:00<00:00, 23665.92 examples/s] +2024-05-30:13:00:39,614 INFO [task.py:395] Building contexts for winogrande on rank 0... +100%|██████████| 1267/1267 [00:00<00:00, 67713.85it/s] +2024-05-30:13:00:39,696 INFO [task.py:395] Building contexts for sst2 on rank 0... +100%|██████████| 872/872 [00:00<00:00, 2590.42it/s] +2024-05-30:13:00:40,061 INFO [task.py:395] Building contexts for piqa on rank 0... +100%|██████████| 1838/1838 [00:01<00:00, 1096.81it/s] +2024-05-30:13:00:41,812 INFO [task.py:395] Building contexts for mrpc on rank 0... +100%|██████████| 408/408 [00:00<00:00, 1914.16it/s] +2024-05-30:13:00:42,044 INFO [task.py:395] Building contexts for copa on rank 0... +100%|██████████| 100/100 [00:00<00:00, 60707.83it/s] +2024-05-30:13:00:42,052 INFO [task.py:395] Building contexts for boolq on rank 0... +100%|██████████| 3270/3270 [00:01<00:00, 1948.70it/s] +2024-05-30:13:00:43,861 INFO [task.py:395] Building contexts for arc_easy on rank 0... +100%|██████████| 2376/2376 [00:02<00:00, 1078.90it/s] +2024-05-30:13:00:46,207 INFO [evaluator.py:379] Running loglikelihood requests +Token indices sequence length is longer than the specified maximum sequence length for this model (1333 > 1024). Running this sequence through the model will result in indexing errors +Running loglikelihood requests: 0%| | 0/25011 [00:00 np.allclose + if not np.allclose(image_features, hf_image_features, atol=1e-3): + raise ValueError("The predicted image features are not the same.") + if not np.allclose(text_features, hf_text_features, atol=1e-3): + raise ValueError("The predicted text features are not the same.") + print("Model outputs match!") + + if save_model: + # Create folder to save model + if not os.path.isdir(pytorch_dump_folder_path): + os.mkdir(pytorch_dump_folder_path) + # Save converted model and image processor + hf_model.save_pretrained(pytorch_dump_folder_path) + processor.save_pretrained(pytorch_dump_folder_path) + + if push_to_hub: + # Push model and image processor to hub + print("Pushing converted ALIGN to the hub...") + processor.push_to_hub("align-base") + hf_model.push_to_hub("align-base") + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + # Required parameters + parser.add_argument( + "--checkpoint_path", + default="./weights/model-weights", + type=str, + help="Path to the pretrained TF ALIGN checkpoint.", + ) + parser.add_argument( + "--pytorch_dump_folder_path", + default="hf_model", + type=str, + help="Path to the output PyTorch model directory.", + ) + parser.add_argument("--save_model", action="store_true", help="Save model to local") + parser.add_argument("--push_to_hub", action="store_true", help="Push model and image processor to the hub") + + args = parser.parse_args() + convert_align_checkpoint(args.checkpoint_path, args.pytorch_dump_folder_path, args.save_model, args.push_to_hub) diff --git a/venv/lib/python3.10/site-packages/transformers/models/bridgetower/__init__.py b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..cbd5bd4a366aed7ac2bcb876e354802acf6ea319 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/__init__.py @@ -0,0 +1,89 @@ +# Copyright 2023 The Intel Labs Team Authors, The Microsoft Research Team Authors and HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available + + +_import_structure = { + "configuration_bridgetower": [ + "BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP", + "BridgeTowerConfig", + "BridgeTowerTextConfig", + "BridgeTowerVisionConfig", + ], + "processing_bridgetower": ["BridgeTowerProcessor"], +} + +try: + if not is_vision_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["image_processing_bridgetower"] = ["BridgeTowerImageProcessor"] + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_bridgetower"] = [ + "BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST", + "BridgeTowerForContrastiveLearning", + "BridgeTowerForImageAndTextRetrieval", + "BridgeTowerForMaskedLM", + "BridgeTowerModel", + "BridgeTowerPreTrainedModel", + ] + + +if TYPE_CHECKING: + from .configuration_bridgetower import ( + BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP, + BridgeTowerConfig, + BridgeTowerTextConfig, + BridgeTowerVisionConfig, + ) + from .processing_bridgetower import BridgeTowerProcessor + + try: + if not is_vision_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .image_processing_bridgetower import BridgeTowerImageProcessor + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_bridgetower import ( + BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST, + BridgeTowerForContrastiveLearning, + BridgeTowerForImageAndTextRetrieval, + BridgeTowerForMaskedLM, + BridgeTowerModel, + BridgeTowerPreTrainedModel, + ) + + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure) diff --git a/venv/lib/python3.10/site-packages/transformers/models/bridgetower/__pycache__/__init__.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..24660f6cd7e7e4c204bdf79bf0a210df1e61af0a Binary files /dev/null and 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file mode 100644 index 0000000000000000000000000000000000000000..eb686965bc9a5a8341fca059ccb8b030f81c7f9a Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/__pycache__/processing_bridgetower.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/bridgetower/configuration_bridgetower.py b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/configuration_bridgetower.py new file mode 100644 index 0000000000000000000000000000000000000000..2d3340ad62ab67173a88a29cb9bc0fba494a36bb --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/configuration_bridgetower.py @@ -0,0 +1,349 @@ +# coding=utf-8 +# Copyright 2023 The Intel Labs Team Authors, The Microsoft Research Team Authors and HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License=, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing=, software +# distributed under the License is distributed on an "AS IS" BASIS=, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND=, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" BridgeTower model configuration""" + +import os +from typing import Union + +from ...configuration_utils import PretrainedConfig +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +from ..deprecated._archive_maps import BRIDGETOWER_PRETRAINED_CONFIG_ARCHIVE_MAP # noqa: F401, E402 + + +class BridgeTowerVisionConfig(PretrainedConfig): + r""" + This is the configuration class to store the vision configuration of a [`BridgeTowerModel`]. Instantiating a + configuration with the defaults will yield a similar configuration to that of the bridgetower-base + [BridgeTower/bridgetower-base](https://huggingface.co/BridgeTower/bridgetower-base/) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in visual encoder model. + patch_size (`int`, *optional*, defaults to 16): + The size (resolution) of each patch. + image_size (`int`, *optional*, defaults to 288): + The size (resolution) of each image. + initializer_factor (`float`, *optional*, defaults to 1): + A factor for initializing all weight matrices (should be kept to 1, used internally for initialization + testing). + layer_norm_eps (`float`, *optional*, defaults to 1e-05): + The epsilon used by the layer normalization layers. + stop_gradient (`bool`, *optional*, defaults to `False`): + Whether to stop gradient for training. + share_layernorm (`bool`, *optional*, defaults to `True`): + Whether LayerNorm layers are shared. + remove_last_layer (`bool`, *optional*, defaults to `False`): + Whether to remove the last layer from the vision encoder. + + + Example: + + ```python + >>> from transformers import BridgeTowerVisionConfig + + >>> # Initializing a BridgeTower BridgeTower/bridgetower-base style configuration for the vision model + >>> configuration = BridgeTowerVisionConfig() + + >>> # Accessing the configuration + >>> configuration + ```""" + + model_type = "bridgetower_vision_model" + + def __init__( + self, + hidden_size=768, + num_hidden_layers=12, + num_channels=3, + patch_size=16, + image_size=288, + initializer_factor=1, + layer_norm_eps=1e-05, + stop_gradient=False, + share_layernorm=True, + remove_last_layer=False, + **kwargs, + ): + super().__init__(**kwargs) + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.num_channels = num_channels + self.patch_size = patch_size + self.image_size = image_size + self.initializer_factor = initializer_factor + self.layer_norm_eps = layer_norm_eps + self.stop_gradient = stop_gradient + self.share_layernorm = share_layernorm + self.remove_last_layer = remove_last_layer + + @classmethod + def from_pretrained(cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs) -> "PretrainedConfig": + config_dict, kwargs = cls.get_config_dict(pretrained_model_name_or_path, **kwargs) + + if config_dict.get("model_type") == "bridgetower": + config_dict = config_dict["text_config"] + + if "model_type" in config_dict and hasattr(cls, "model_type") and config_dict["model_type"] != cls.model_type: + logger.warning( + f"You are using a model of type {config_dict['model_type']} to instantiate a model of type " + f"{cls.model_type}. This is not supported for all configurations of models and can yield errors." + ) + + return cls.from_dict(config_dict, **kwargs) + + +class BridgeTowerTextConfig(PretrainedConfig): + r""" + This is the configuration class to store the text configuration of a [`BridgeTowerModel`]. The default values here + are copied from RoBERTa. Instantiating a configuration with the defaults will yield a similar configuration to that + of the bridgetower-base [BridegTower/bridgetower-base](https://huggingface.co/BridgeTower/bridgetower-base/) + architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + vocab_size (`int`, *optional*, defaults to 50265): + Vocabulary size of the text part of the model. Defines the number of different tokens that can be + represented by the `inputs_ids` passed when calling [`BridgeTowerModel`]. + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + num_hidden_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + intermediate_size (`int`, *optional*, defaults to 3072): + Dimensionality of the "intermediate" (often named feed-forward) layer in the Transformer encoder. + hidden_act (`str` or `Callable`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. If string, `"gelu"`, + `"relu"`, `"silu"` and `"gelu_new"` are supported. + hidden_dropout_prob (`float`, *optional*, defaults to 0.1): + The dropout probability for all fully connected layers in the embeddings, encoder, and pooler. + attention_probs_dropout_prob (`float`, *optional*, defaults to 0.1): + The dropout ratio for the attention probabilities. + max_position_embeddings (`int`, *optional*, defaults to 514): + The maximum sequence length that this model might ever be used with. Typically set this to something large + just in case (e.g., 512 or 1024 or 2048). + type_vocab_size (`int`, *optional*, defaults to 2): + The vocabulary size of the `token_type_ids`. + initializer_factor (`float`, *optional*, defaults to 1): + A factor for initializing all weight matrices (should be kept to 1, used internally for initialization + testing). + layer_norm_eps (`float`, *optional*, defaults to 1e-05): + The epsilon used by the layer normalization layers. + position_embedding_type (`str`, *optional*, defaults to `"absolute"`): + Type of position embedding. Choose one of `"absolute"`, `"relative_key"`, `"relative_key_query"`. For + positional embeddings use `"absolute"`. For more information on `"relative_key"`, please refer to + [Self-Attention with Relative Position Representations (Shaw et al.)](https://arxiv.org/abs/1803.02155). + For more information on `"relative_key_query"`, please refer to *Method 4* in [Improve Transformer Models + with Better Relative Position Embeddings (Huang et al.)](https://arxiv.org/abs/2009.13658). + is_decoder (`bool`, *optional*, defaults to `False`): + Whether the model is used as a decoder or not. If `False`, the model is used as an encoder. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last key/values attentions (not used by all models). Only + relevant if `config.is_decoder=True`. + + Example: + + ```python + >>> from transformers import BridgeTowerTextConfig + + >>> # Initializing a BridgeTower BridgeTower/bridgetower-base style configuration for the text model + >>> configuration = BridgeTowerTextConfig() + + >>> # Accessing the configuration + >>> configuration + ```""" + + model_type = "bridgetower_text_model" + + def __init__( + self, + vocab_size=50265, + hidden_size=768, + num_hidden_layers=12, + num_attention_heads=12, + initializer_factor=1, + intermediate_size=3072, + hidden_act="gelu", + hidden_dropout_prob=0.1, + attention_probs_dropout_prob=0.1, + max_position_embeddings=514, + type_vocab_size=1, + layer_norm_eps=1e-05, + pad_token_id=1, + bos_token_id=0, + eos_token_id=2, + position_embedding_type="absolute", + use_cache=True, + **kwargs, + ): + super().__init__(**kwargs) + + self.vocab_size = vocab_size + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.hidden_act = hidden_act + self.initializer_factor = initializer_factor + self.intermediate_size = intermediate_size + self.hidden_dropout_prob = hidden_dropout_prob + self.attention_probs_dropout_prob = attention_probs_dropout_prob + self.max_position_embeddings = max_position_embeddings + self.type_vocab_size = type_vocab_size + self.layer_norm_eps = layer_norm_eps + self.position_embedding_type = position_embedding_type + self.use_cache = use_cache + self.pad_token_id = pad_token_id + self.bos_token_id = bos_token_id + self.eos_token_id = eos_token_id + + @classmethod + def from_pretrained(cls, pretrained_model_name_or_path: Union[str, os.PathLike], **kwargs) -> "PretrainedConfig": + config_dict, kwargs = cls.get_config_dict(pretrained_model_name_or_path, **kwargs) + + if config_dict.get("model_type") == "bridgetower": + config_dict = config_dict["text_config"] + + if "model_type" in config_dict and hasattr(cls, "model_type") and config_dict["model_type"] != cls.model_type: + logger.warning( + f"You are using a model of type {config_dict['model_type']} to instantiate a model of type " + f"{cls.model_type}. This is not supported for all configurations of models and can yield errors." + ) + + return cls.from_dict(config_dict, **kwargs) + + +class BridgeTowerConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`BridgeTowerModel`]. It is used to instantiate a + BridgeTower model according to the specified arguments, defining the model architecture. Instantiating a + configuration with the defaults will yield a similar configuration to that of the bridgetower-base + [BridgeTower/bridgetower-base](https://huggingface.co/BridgeTower/bridgetower-base/) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Args: + share_cross_modal_transformer_layers (`bool`, *optional*, defaults to `True`): + Whether cross modal transformer layers are shared. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. + hidden_size (`int`, *optional*, defaults to 768): + Dimensionality of the encoder layers and the pooler layer. + initializer_factor (`float`, *optional*, defaults to 1): + A factor for initializing all weight matrices (should be kept to 1, used internally for initialization + testing). + layer_norm_eps (`float`, *optional*, defaults to 1e-05): + The epsilon used by the layer normalization layers. + share_link_tower_layers (`bool`, *optional*, defaults to `False`): + Whether the bride/link tower layers are shared. + link_tower_type (`str`, *optional*, defaults to `"add"`): + Type of the bridge/link layer. + num_attention_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + num_hidden_layers (`int`, *optional*, defaults to 6): + Number of hidden layers in the Transformer encoder. + tie_word_embeddings (`bool`, *optional*, defaults to `False`): + Whether to tie input and output embeddings. + init_layernorm_from_vision_encoder (`bool`, *optional*, defaults to `False`): + Whether to init LayerNorm from the vision encoder. + text_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`BridgeTowerTextConfig`]. + vision_config (`dict`, *optional*): + Dictionary of configuration options used to initialize [`BridgeTowerVisionConfig`]. + + Example: + + ```python + >>> from transformers import BridgeTowerModel, BridgeTowerConfig + + >>> # Initializing a BridgeTower BridgeTower/bridgetower-base style configuration + >>> configuration = BridgeTowerConfig() + + >>> # Initializing a model from the BridgeTower/bridgetower-base style configuration + >>> model = BridgeTowerModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "bridgetower" + + def __init__( + self, + share_cross_modal_transformer_layers=True, + hidden_act="gelu", + hidden_size=768, + initializer_factor=1, + layer_norm_eps=1e-05, + share_link_tower_layers=False, + link_tower_type="add", + num_attention_heads=12, + num_hidden_layers=6, + tie_word_embeddings=False, + init_layernorm_from_vision_encoder=False, + text_config=None, + vision_config=None, + **kwargs, + ): + # TODO: remove this once the Hub files are updated. + _ = kwargs.pop("text_config_dict", None) + _ = kwargs.pop("vision_config_dict", None) + + super().__init__(**kwargs) + self.share_cross_modal_transformer_layers = share_cross_modal_transformer_layers + self.hidden_act = hidden_act + self.hidden_size = hidden_size + self.initializer_factor = initializer_factor + self.layer_norm_eps = layer_norm_eps + self.share_link_tower_layers = share_link_tower_layers + self.link_tower_type = link_tower_type + self.num_attention_heads = num_attention_heads + self.num_hidden_layers = num_hidden_layers + self.tie_word_embeddings = tie_word_embeddings + self.init_layernorm_from_vision_encoder = init_layernorm_from_vision_encoder + + if text_config is None: + text_config = {} + logger.info("`text_config` is `None`. Initializing the `BridgeTowerTextConfig` with default values.") + + if vision_config is None: + vision_config = {} + logger.info("`vision_config` is `None`. Initializing the `BridgeTowerVisionConfig` with default values.") + + self.text_config = BridgeTowerTextConfig(**text_config) + self.vision_config = BridgeTowerVisionConfig(**vision_config) + + @classmethod + def from_text_vision_configs( + cls, text_config: BridgeTowerTextConfig, vision_config: BridgeTowerVisionConfig, **kwargs + ): + r""" + Instantiate a [`BridgeTowerConfig`] (or a derived class) from BridgeTower text model configuration. Returns: + [`BridgeTowerConfig`]: An instance of a configuration object + """ + + return cls(text_config=text_config.to_dict(), vision_config=vision_config.to_dict(), **kwargs) diff --git a/venv/lib/python3.10/site-packages/transformers/models/bridgetower/image_processing_bridgetower.py b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/image_processing_bridgetower.py new file mode 100644 index 0000000000000000000000000000000000000000..8fc62ad3970fa0a1f5a9066f5c12614f2dfcb4b6 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/image_processing_bridgetower.py @@ -0,0 +1,561 @@ +# coding=utf-8 +# Copyright 2023 The Intel Labs Team Authors, The Microsoft Research Team Authors and HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Image processor class for BridgeTower.""" + +from typing import Any, Dict, Iterable, List, Optional, Tuple, Union + +import numpy as np + +from ...image_processing_utils import BaseImageProcessor, BatchFeature, get_size_dict +from ...image_transforms import PaddingMode, center_crop, pad, resize, to_channel_dimension_format +from ...image_utils import ( + OPENAI_CLIP_MEAN, + OPENAI_CLIP_STD, + ChannelDimension, + ImageInput, + PILImageResampling, + get_image_size, + infer_channel_dimension_format, + is_batched, + is_scaled_image, + to_numpy_array, + valid_images, + validate_kwargs, + validate_preprocess_arguments, +) +from ...utils import TensorType, is_vision_available, logging + + +if is_vision_available(): + import PIL + +logger = logging.get_logger(__name__) + + +# Copied from transformers.models.vilt.image_processing_vilt.max_across_indices +def max_across_indices(values: Iterable[Any]) -> List[Any]: + """ + Return the maximum value across all indices of an iterable of values. + """ + return [max(values_i) for values_i in zip(*values)] + + +# Copied from transformers.models.vilt.image_processing_vilt.make_pixel_mask +def make_pixel_mask( + image: np.ndarray, output_size: Tuple[int, int], input_data_format: Optional[Union[str, ChannelDimension]] = None +) -> np.ndarray: + """ + Make a pixel mask for the image, where 1 indicates a valid pixel and 0 indicates padding. + + Args: + image (`np.ndarray`): + Image to make the pixel mask for. + output_size (`Tuple[int, int]`): + Output size of the mask. + """ + input_height, input_width = get_image_size(image, channel_dim=input_data_format) + mask = np.zeros(output_size, dtype=np.int64) + mask[:input_height, :input_width] = 1 + return mask + + +# Copied from transformers.models.vilt.image_processing_vilt.get_max_height_width +def get_max_height_width( + images: List[np.ndarray], input_data_format: Optional[Union[str, ChannelDimension]] = None +) -> List[int]: + """ + Get the maximum height and width across all images in a batch. + """ + if input_data_format is None: + input_data_format = infer_channel_dimension_format(images[0]) + + if input_data_format == ChannelDimension.FIRST: + _, max_height, max_width = max_across_indices([img.shape for img in images]) + elif input_data_format == ChannelDimension.LAST: + max_height, max_width, _ = max_across_indices([img.shape for img in images]) + else: + raise ValueError(f"Invalid channel dimension format: {input_data_format}") + return (max_height, max_width) + + +# Copied from transformers.models.vilt.image_processing_vilt.get_resize_output_image_size +def get_resize_output_image_size( + input_image: np.ndarray, + shorter: int = 800, + longer: int = 1333, + size_divisor: int = 32, + input_data_format: Optional[Union[str, ChannelDimension]] = None, +) -> Tuple[int, int]: + input_height, input_width = get_image_size(input_image, input_data_format) + min_size, max_size = shorter, longer + + scale = min_size / min(input_height, input_width) + + if input_height < input_width: + new_height = min_size + new_width = scale * input_width + else: + new_height = scale * input_height + new_width = min_size + + if max(new_height, new_width) > max_size: + scale = max_size / max(new_height, new_width) + new_height = scale * new_height + new_width = scale * new_width + + new_height, new_width = int(new_height + 0.5), int(new_width + 0.5) + new_height = new_height // size_divisor * size_divisor + new_width = new_width // size_divisor * size_divisor + + return new_height, new_width + + +class BridgeTowerImageProcessor(BaseImageProcessor): + r""" + Constructs a BridgeTower image processor. + + Args: + do_resize (`bool`, *optional*, defaults to `True`): + Whether to resize the image's (height, width) dimensions to the specified `size`. Can be overridden by the + `do_resize` parameter in the `preprocess` method. + size (`Dict[str, int]` *optional*, defaults to `{'shortest_edge': 288}`): + Resize the shorter side of the input to `size["shortest_edge"]`. The longer side will be limited to under + `int((1333 / 800) * size["shortest_edge"])` while preserving the aspect ratio. Only has an effect if + `do_resize` is set to `True`. Can be overridden by the `size` parameter in the `preprocess` method. + size_divisor (`int`, *optional*, defaults to 32): + The size by which to make sure both the height and width can be divided. Only has an effect if `do_resize` + is set to `True`. Can be overridden by the `size_divisor` parameter in the `preprocess` method. + resample (`PILImageResampling`, *optional*, defaults to `Resampling.BICUBIC`): + Resampling filter to use if resizing the image. Only has an effect if `do_resize` is set to `True`. Can be + overridden by the `resample` parameter in the `preprocess` method. + do_rescale (`bool`, *optional*, defaults to `True`): + Whether to rescale the image by the specified scale `rescale_factor`. Can be overridden by the `do_rescale` + parameter in the `preprocess` method. + rescale_factor (`int` or `float`, *optional*, defaults to `1/255`): + Scale factor to use if rescaling the image. Only has an effect if `do_rescale` is set to `True`. Can be + overridden by the `rescale_factor` parameter in the `preprocess` method. + do_normalize (`bool`, *optional*, defaults to `True`): + Whether to normalize the image. Can be overridden by the `do_normalize` parameter in the `preprocess` + method. Can be overridden by the `do_normalize` parameter in the `preprocess` method. + image_mean (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_MEAN`): + Mean to use if normalizing the image. This is a float or list of floats the length of the number of + channels in the image. Can be overridden by the `image_mean` parameter in the `preprocess` method. Can be + overridden by the `image_mean` parameter in the `preprocess` method. + image_std (`float` or `List[float]`, *optional*, defaults to `IMAGENET_STANDARD_STD`): + Standard deviation to use if normalizing the image. This is a float or list of floats the length of the + number of channels in the image. Can be overridden by the `image_std` parameter in the `preprocess` method. + Can be overridden by the `image_std` parameter in the `preprocess` method. + do_center_crop (`bool`, *optional*, defaults to `True`): + Whether to center crop the image. Can be overridden by the `do_center_crop` parameter in the `preprocess` + method. + crop_size (`Dict[str, int]`, *optional*): + Desired output size when applying center-cropping. Only has an effect if `do_center_crop` is set to `True`. + Can be overridden by the `crop_size` parameter in the `preprocess` method. If unset defaults to `size`, + do_pad (`bool`, *optional*, defaults to `True`): + Whether to pad the image to the `(max_height, max_width)` of the images in the batch. Can be overridden by + the `do_pad` parameter in the `preprocess` method. + """ + + model_input_names = ["pixel_values"] + + def __init__( + self, + do_resize: bool = True, + size: Dict[str, int] = None, + size_divisor: int = 32, + resample: PILImageResampling = PILImageResampling.BICUBIC, + do_rescale: bool = True, + rescale_factor: Union[int, float] = 1 / 255, + do_normalize: bool = True, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_center_crop: bool = True, + crop_size: Dict[str, int] = None, + do_pad: bool = True, + **kwargs, + ) -> None: + if "pad_and_return_pixel_mask" in kwargs: + do_pad = kwargs.pop("pad_and_return_pixel_mask") + + super().__init__(**kwargs) + size = size if size is not None else {"shortest_edge": 288} + size = get_size_dict(size, default_to_square=False) + + self.do_resize = do_resize + self.size = size + self.size_divisor = size_divisor + self.resample = resample + self.do_rescale = do_rescale + self.rescale_factor = rescale_factor + self.do_normalize = do_normalize + self.image_mean = image_mean if image_mean is not None else OPENAI_CLIP_MEAN + self.image_std = image_std if image_std is not None else OPENAI_CLIP_STD + self.do_pad = do_pad + self.do_center_crop = do_center_crop + self.crop_size = crop_size + self._valid_processor_keys = [ + "images", + "do_resize", + "size", + "size_divisor", + "resample", + "do_rescale", + "rescale_factor", + "do_normalize", + "image_mean", + "image_std", + "do_pad", + "do_center_crop", + "crop_size", + "return_tensors", + "data_format", + "input_data_format", + ] + + # Copied from transformers.models.vilt.image_processing_vilt.ViltImageProcessor.resize + def resize( + self, + image: np.ndarray, + size: Dict[str, int], + size_divisor: int = 32, + resample: PILImageResampling = PILImageResampling.BICUBIC, + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> np.ndarray: + """ + Resize an image. + + Resizes the shorter side of the image to `size["shortest_edge"]` while preserving the aspect ratio. If the + longer side is larger than the max size `(int(`size["shortest_edge"]` * 1333 / 800))`, the longer side is then + resized to the max size while preserving the aspect ratio. + + Args: + image (`np.ndarray`): + Image to resize. + size (`Dict[str, int]`): + Controls the size of the output image. Should be of the form `{"shortest_edge": int}`. + size_divisor (`int`, defaults to 32): + The image is resized to a size that is a multiple of this value. + resample (`PILImageResampling` filter, *optional*, defaults to `PILImageResampling.BICUBIC`): + Resampling filter to use when resiizing the image. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + size = get_size_dict(size, default_to_square=False) + if "shortest_edge" not in size: + raise ValueError(f"The `size` dictionary must contain the key `shortest_edge`. Got {size.keys()}") + shorter = size["shortest_edge"] + longer = int(1333 / 800 * shorter) + output_size = get_resize_output_image_size( + image, shorter=shorter, longer=longer, size_divisor=size_divisor, input_data_format=input_data_format + ) + return resize( + image, + size=output_size, + resample=resample, + data_format=data_format, + input_data_format=input_data_format, + **kwargs, + ) + + def center_crop( + self, + image: np.ndarray, + size: Dict[str, int], + data_format: Optional[Union[str, ChannelDimension]] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> np.ndarray: + """ + Center crop an image to `(size["height"], size["width"])`. If the input size is smaller than `crop_size` along + any edge, the image is padded with 0's and then center cropped. + + Args: + image (`np.ndarray`): + Image to center crop. + size (`Dict[str, int]`): + Size of the output image in the form `{"height": h, "width": w}`. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred from the input + image. + """ + output_size = size["shortest_edge"] + return center_crop( + image, + size=(output_size, output_size), + data_format=data_format, + input_data_format=input_data_format, + **kwargs, + ) + + # Copied from transformers.models.vilt.image_processing_vilt.ViltImageProcessor._pad_image + def _pad_image( + self, + image: np.ndarray, + output_size: Tuple[int, int], + constant_values: Union[float, Iterable[float]] = 0, + data_format: Optional[ChannelDimension] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> np.ndarray: + """ + Pad an image with zeros to the given size. + """ + input_height, input_width = get_image_size(image, channel_dim=input_data_format) + output_height, output_width = output_size + + pad_bottom = output_height - input_height + pad_right = output_width - input_width + padding = ((0, pad_bottom), (0, pad_right)) + padded_image = pad( + image, + padding, + mode=PaddingMode.CONSTANT, + constant_values=constant_values, + data_format=data_format, + input_data_format=input_data_format, + ) + return padded_image + + # Copied from transformers.models.vilt.image_processing_vilt.ViltImageProcessor.pad + def pad( + self, + images: List[np.ndarray], + constant_values: Union[float, Iterable[float]] = 0, + return_pixel_mask: bool = True, + return_tensors: Optional[Union[str, TensorType]] = None, + data_format: Optional[ChannelDimension] = None, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + ) -> BatchFeature: + """ + Pads a batch of images to the bottom and right of the image with zeros to the size of largest height and width + in the batch and optionally returns their corresponding pixel mask. + + Args: + image (`np.ndarray`): + Image to pad. + constant_values (`float` or `Iterable[float]`, *optional*): + The value to use for the padding if `mode` is `"constant"`. + return_pixel_mask (`bool`, *optional*, defaults to `True`): + Whether to return a pixel mask. + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`str` or `ChannelDimension`, *optional*): + The channel dimension format of the image. If not provided, it will be the same as the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format of the input image. If not provided, it will be inferred. + """ + pad_size = get_max_height_width(images, input_data_format=input_data_format) + + padded_images = [ + self._pad_image( + image, + pad_size, + constant_values=constant_values, + data_format=data_format, + input_data_format=input_data_format, + ) + for image in images + ] + data = {"pixel_values": padded_images} + + if return_pixel_mask: + masks = [ + make_pixel_mask(image=image, output_size=pad_size, input_data_format=input_data_format) + for image in images + ] + data["pixel_mask"] = masks + + return BatchFeature(data=data, tensor_type=return_tensors) + + def preprocess( + self, + images: ImageInput, + do_resize: Optional[bool] = None, + size: Optional[Dict[str, int]] = None, + size_divisor: Optional[int] = None, + resample: PILImageResampling = None, + do_rescale: Optional[bool] = None, + rescale_factor: Optional[float] = None, + do_normalize: Optional[bool] = None, + image_mean: Optional[Union[float, List[float]]] = None, + image_std: Optional[Union[float, List[float]]] = None, + do_pad: Optional[bool] = None, + do_center_crop: Optional[bool] = None, + crop_size: Dict[str, int] = None, + return_tensors: Optional[Union[str, TensorType]] = None, + data_format: ChannelDimension = ChannelDimension.FIRST, + input_data_format: Optional[Union[str, ChannelDimension]] = None, + **kwargs, + ) -> PIL.Image.Image: + """ + Preprocess an image or batch of images. + + Args: + images (`ImageInput`): + Image to preprocess. Expects a single or batch of images with pixel values ranging from 0 to 255. If + passing in images with pixel values between 0 and 1, set `do_rescale=False`. + do_resize (`bool`, *optional*, defaults to `self.do_resize`): + Whether to resize the image. + size (`Dict[str, int]`, *optional*, defaults to `self.size`): + Controls the size of the image after `resize`. The shortest edge of the image is resized to + `size["shortest_edge"]` whilst preserving the aspect ratio. If the longest edge of this resized image + is > `int(size["shortest_edge"] * (1333 / 800))`, then the image is resized again to make the longest + edge equal to `int(size["shortest_edge"] * (1333 / 800))`. + size_divisor (`int`, *optional*, defaults to `self.size_divisor`): + The image is resized to a size that is a multiple of this value. + resample (`PILImageResampling`, *optional*, defaults to `self.resample`): + Resampling filter to use if resizing the image. Only has an effect if `do_resize` is set to `True`. + do_rescale (`bool`, *optional*, defaults to `self.do_rescale`): + Whether to rescale the image values between [0 - 1]. + rescale_factor (`float`, *optional*, defaults to `self.rescale_factor`): + Rescale factor to rescale the image by if `do_rescale` is set to `True`. + do_normalize (`bool`, *optional*, defaults to `self.do_normalize`): + Whether to normalize the image. + image_mean (`float` or `List[float]`, *optional*, defaults to `self.image_mean`): + Image mean to normalize the image by if `do_normalize` is set to `True`. + image_std (`float` or `List[float]`, *optional*, defaults to `self.image_std`): + Image standard deviation to normalize the image by if `do_normalize` is set to `True`. + do_pad (`bool`, *optional*, defaults to `self.do_pad`): + Whether to pad the image to the (max_height, max_width) in the batch. If `True`, a pixel mask is also + created and returned. + do_center_crop (`bool`, *optional*, defaults to `self.do_center_crop`): + Whether to center crop the image. If the input size is smaller than `crop_size` along any edge, the + image is padded with 0's and then center cropped. + crop_size (`Dict[str, int]`, *optional*, defaults to `self.crop_size`): + Size of the image after center crop. If one edge the image is smaller than `crop_size`, it will be + padded with zeros and then cropped + return_tensors (`str` or `TensorType`, *optional*): + The type of tensors to return. Can be one of: + - Unset: Return a list of `np.ndarray`. + - `TensorType.TENSORFLOW` or `'tf'`: Return a batch of type `tf.Tensor`. + - `TensorType.PYTORCH` or `'pt'`: Return a batch of type `torch.Tensor`. + - `TensorType.NUMPY` or `'np'`: Return a batch of type `np.ndarray`. + - `TensorType.JAX` or `'jax'`: Return a batch of type `jax.numpy.ndarray`. + data_format (`ChannelDimension` or `str`, *optional*, defaults to `ChannelDimension.FIRST`): + The channel dimension format for the output image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - Unset: Use the channel dimension format of the input image. + input_data_format (`ChannelDimension` or `str`, *optional*): + The channel dimension format for the input image. If unset, the channel dimension format is inferred + from the input image. Can be one of: + - `"channels_first"` or `ChannelDimension.FIRST`: image in (num_channels, height, width) format. + - `"channels_last"` or `ChannelDimension.LAST`: image in (height, width, num_channels) format. + - `"none"` or `ChannelDimension.NONE`: image in (height, width) format. + """ + do_resize = do_resize if do_resize is not None else self.do_resize + size_divisor = size_divisor if size_divisor is not None else self.size_divisor + resample = resample if resample is not None else self.resample + do_rescale = do_rescale if do_rescale is not None else self.do_rescale + rescale_factor = rescale_factor if rescale_factor is not None else self.rescale_factor + do_normalize = do_normalize if do_normalize is not None else self.do_normalize + image_mean = image_mean if image_mean is not None else self.image_mean + image_std = image_std if image_std is not None else self.image_std + do_pad = do_pad if do_pad is not None else self.do_pad + do_center_crop if do_center_crop is not None else self.do_center_crop + # For backwards compatibility. Initial version of this processor was cropping to the "size" argument, which + # it should default to if crop_size is undefined. + crop_size = ( + crop_size if crop_size is not None else (self.crop_size if self.crop_size is not None else self.size) + ) + + size = size if size is not None else self.size + size = get_size_dict(size, default_to_square=False) + + validate_kwargs(captured_kwargs=kwargs.keys(), valid_processor_keys=self._valid_processor_keys) + + if not is_batched(images): + images = [images] + + if not valid_images(images): + raise ValueError( + "Invalid image type. Must be of type PIL.Image.Image, numpy.ndarray, " + "torch.Tensor, tf.Tensor or jax.ndarray." + ) + # Here, crop_size is used only if it is set, else size will be used. + validate_preprocess_arguments( + do_rescale=do_rescale, + rescale_factor=rescale_factor, + do_normalize=do_normalize, + image_mean=image_mean, + image_std=image_std, + do_pad=do_pad, + size_divisibility=size_divisor, + do_center_crop=do_center_crop, + crop_size=crop_size, + do_resize=do_resize, + size=size, + resample=resample, + ) + # All transformations expect numpy arrays. + images = [to_numpy_array(image) for image in images] + + if is_scaled_image(images[0]) and do_rescale: + logger.warning_once( + "It looks like you are trying to rescale already rescaled images. If the input" + " images have pixel values between 0 and 1, set `do_rescale=False` to avoid rescaling them again." + ) + + if do_resize: + images = [ + self.resize( + image=image, + size=size, + size_divisor=size_divisor, + resample=resample, + input_data_format=input_data_format, + ) + for image in images + ] + + if do_center_crop: + images = [ + self.center_crop(image=image, size=crop_size, input_data_format=input_data_format) for image in images + ] + + if do_rescale: + images = [ + self.rescale(image=image, scale=rescale_factor, input_data_format=input_data_format) + for image in images + ] + + if do_normalize: + images = [ + self.normalize(image=image, mean=image_mean, std=image_std, input_data_format=input_data_format) + for image in images + ] + + images = [ + to_channel_dimension_format(image, data_format, input_channel_dim=input_data_format) for image in images + ] + + if do_pad: + encoded_outputs = self.pad( + images, return_pixel_mask=True, return_tensors=return_tensors, input_data_format=data_format + ) + else: + encoded_outputs = BatchFeature(data={"pixel_values": images}, tensor_type=return_tensors) + + return encoded_outputs diff --git a/venv/lib/python3.10/site-packages/transformers/models/bridgetower/modeling_bridgetower.py b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/modeling_bridgetower.py new file mode 100644 index 0000000000000000000000000000000000000000..bcace39b299bcf9316a571bdf4fd37bcc4923a5c --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/modeling_bridgetower.py @@ -0,0 +1,1898 @@ +# coding=utf-8 +# Copyright 2023 The Intel Labs Team Authors, The Microsoft Research Team Authors and HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch BridgeTower Model""" + +import math +from collections import OrderedDict +from dataclasses import dataclass +from typing import List, Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN, QuickGELUActivation +from ...modeling_outputs import ( + BaseModelOutputWithPastAndCrossAttentions, + BaseModelOutputWithPoolingAndCrossAttentions, + MaskedLMOutput, + ModelOutput, + SequenceClassifierOutput, +) +from ...modeling_utils import PreTrainedModel, apply_chunking_to_forward +from ...pytorch_utils import find_pruneable_heads_and_indices, prune_linear_layer +from ...utils import add_start_docstrings, add_start_docstrings_to_model_forward, logging, replace_return_docstrings +from .configuration_bridgetower import BridgeTowerConfig, BridgeTowerTextConfig, BridgeTowerVisionConfig + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "BridgeTowerConfig" +_CHECKPOINT_FOR_DOC = "BridgeTower/bridgetower-base" +_TOKENIZER_FOR_DOC = "RobertaTokenizer" + + +from ..deprecated._archive_maps import BRIDGETOWER_PRETRAINED_MODEL_ARCHIVE_LIST # noqa: F401, E402 + + +BRIDGETOWER_START_DOCSTRING = r""" + This model is a PyTorch `torch.nn.Module `_ subclass. Use + it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and + behavior. + + Parameters: + config ([`BridgeTowerConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +BRIDGETOWER_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `({0})`): + Indices of input sequence tokens in the vocabulary. Indices can be obtained using [`AutoTokenizer`]. See + [`PreTrainedTokenizer.encode`] and [`PreTrainedTokenizer.__call__`] for details. [What are input + IDs?](../glossary#input-ids) + + attention_mask (`torch.FloatTensor` of shape `({0})`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + [What are attention masks?](../glossary#attention-mask) + + token_type_ids (`torch.LongTensor` of shape `({0})`, *optional*): + Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0, + 1]`: + - 0 corresponds to a *sentence A* token, + - 1 corresponds to a *sentence B* token. + [What are token type IDs?](../glossary#token-type-ids) + + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Pixel values can be obtained using [`BridgeTowerImageProcessor`]. See + [`BridgeTowerImageProcessor.__call__`] for details. + + pixel_mask (`torch.LongTensor` of shape `(batch_size, height, width)`, *optional*): + Mask to avoid performing attention on padding pixel values. Mask values selected in `[0, 1]`: + + - 1 for pixels that are real (i.e. **not masked**), + - 0 for pixels that are padding (i.e. **masked**). + `What are attention masks? <../glossary.html#attention-mask>`__ + + head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`: + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + inputs_embeds (`torch.FloatTensor` of shape `({0}, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + + image_embeds (`torch.FloatTensor` of shape `(batch_size, num_patches, hidden_size)`, *optional*): + Optionally, instead of passing `pixel_values`, you can choose to directly pass an embedded representation. + This is useful if you want more control over how to convert `pixel_values` into patch embeddings. + + image_token_type_idx (`int`, *optional*): + - The token type ids for images. + + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +@dataclass +class BridgeTowerModelOutput(ModelOutput): + """ + Output type of [`BridgeTowerModel`]. + + Args: + text_features (`torch.FloatTensor` of shape `(batch_size, text_sequence_length, hidden_size)`): + Sequence of hidden-states at the text output of the last layer of the model. + image_features (`torch.FloatTensor` of shape `(batch_size, image_sequence_length, hidden_size)`): + Sequence of hidden-states at the image output of the last layer of the model. + pooler_output (`torch.FloatTensor` of shape `(batch_size, hidden_size x 2)`): + Concatenation of last layer hidden-state of the first token of the text and image sequence (classification + token), respectively, after further processing through layers used for auxiliary pretraining tasks. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of + the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + """ + + text_features: torch.FloatTensor = None + image_features: torch.FloatTensor = None + pooler_output: torch.FloatTensor = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +class BridgeTowerContrastiveOutput(ModelOutput): + """ + Output type of ['BridgeTowerForContrastiveLearning'] + + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `return_loss` is `True`: + Image-text contrastive loss. + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). + text_embeds (`torch.FloatTensor)`, *optional*, returned when model is initialized with `with_projection=True`): + The text embeddings obtained by applying the projection layer to the pooler_output. + image_embeds (`torch.FloatTensor)`, *optional*, returned when model is initialized with `with_projection=True`): + The image embeddings obtained by applying the projection layer to the pooler_output. + cross_embeds (`torch.FloatTensor)`, *optional*, returned when model is initialized with `with_projection=True`): + The text-image cross-modal embeddings obtained by applying the projection layer to the pooler_output. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of + the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + """ + + loss: Optional[torch.FloatTensor] = None + logits: torch.FloatTensor = None + text_embeds: Optional[Tuple[torch.FloatTensor]] = None + image_embeds: Optional[Tuple[torch.FloatTensor]] = None + cross_embeds: Optional[Tuple[torch.FloatTensor]] = None + hidden_states: Optional[Tuple[torch.FloatTensor]] = None + attentions: Optional[Tuple[torch.FloatTensor]] = None + + +class BridgeTowerResidualAttention(nn.Module): + def __init__(self, config): + super().__init__() + + self.attn = nn.MultiheadAttention(config.hidden_size, config.hidden_size // 64) + self.ln_1 = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.mlp = nn.ModuleDict( + OrderedDict( + [ + ("c_fc", nn.Linear(config.hidden_size, config.hidden_size * 4)), + ("gelu", QuickGELUActivation()), + ("c_proj", nn.Linear(config.hidden_size * 4, config.hidden_size)), + ] + ) + ) + self.ln_2 = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.attn_mask = None + + def attention(self, hidden_state: torch.Tensor, attention_mask: torch.Tensor): + if attention_mask is not None: + attention_mask = attention_mask.to(dtype=torch.bool, device=hidden_state.device) + self.attn_mask = ( + self.attn_mask.to(dtype=hidden_state.dtype, device=hidden_state.device) + if self.attn_mask is not None + else None + ) + return self.attn( + hidden_state, + hidden_state, + hidden_state, + need_weights=False, + attn_mask=self.attn_mask, + key_padding_mask=attention_mask, + )[0] + + def forward(self, hidden_state: torch.Tensor, attention_mask: torch.Tensor = None): + residual_state = hidden_state + self.attention(self.ln_1(hidden_state), attention_mask) + hidden_state = self.ln_2(residual_state) + for _, layer in self.mlp.items(): + hidden_state = layer(hidden_state) + hidden_state = residual_state + hidden_state + return hidden_state + + +class BridgeTowerTransformer(nn.Module): + def __init__(self, config): + super().__init__() + self.hidden_size = config.hidden_size + self.num_hidden_layers = config.num_hidden_layers + if config.remove_last_layer: + self.resblocks = nn.ModuleList( + [BridgeTowerResidualAttention(config) for _ in range(self.num_hidden_layers - 1)] + ) + else: + self.resblocks = nn.ModuleList( + [BridgeTowerResidualAttention(config) for _ in range(self.num_hidden_layers)] + ) + self.stop_gradient = config.stop_gradient + + def forward(self, hidden_state: torch.Tensor, attention_mask: Optional[torch.Tensor] = None): + hidden_states = [] + for block in self.resblocks: + hidden_state = block(hidden_state, attention_mask) + if self.stop_gradient: + hidden_states.append(hidden_state.detach()) + else: + hidden_states.append(hidden_state) + return hidden_states + + +# Copied from transformers.models.clip.modeling_clip.CLIPVisionEmbeddings with CLIP->BridgeTower +class BridgeTowerVisionEmbeddings(nn.Module): + def __init__(self, config: BridgeTowerVisionConfig): + super().__init__() + self.config = config + self.embed_dim = config.hidden_size + self.image_size = config.image_size + self.patch_size = config.patch_size + + self.class_embedding = nn.Parameter(torch.randn(self.embed_dim)) + + self.patch_embedding = nn.Conv2d( + in_channels=config.num_channels, + out_channels=self.embed_dim, + kernel_size=self.patch_size, + stride=self.patch_size, + bias=False, + ) + + self.num_patches = (self.image_size // self.patch_size) ** 2 + self.num_positions = self.num_patches + 1 + self.position_embedding = nn.Embedding(self.num_positions, self.embed_dim) + self.register_buffer("position_ids", torch.arange(self.num_positions).expand((1, -1)), persistent=False) + + def forward(self, pixel_values: torch.FloatTensor) -> torch.Tensor: + batch_size = pixel_values.shape[0] + target_dtype = self.patch_embedding.weight.dtype + patch_embeds = self.patch_embedding(pixel_values.to(dtype=target_dtype)) # shape = [*, width, grid, grid] + patch_embeds = patch_embeds.flatten(2).transpose(1, 2) + + class_embeds = self.class_embedding.expand(batch_size, 1, -1) + embeddings = torch.cat([class_embeds, patch_embeds], dim=1) + embeddings = embeddings + self.position_embedding(self.position_ids) + return embeddings + + +class BridgeTowerVisionTransformer(nn.Module): + def __init__(self, config): + super().__init__() + + self.embeddings = BridgeTowerVisionEmbeddings(config) + self.ln_pre = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.transformer = BridgeTowerTransformer(config) + self.ln_post = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.share_layernorm = config.share_layernorm + if not config.share_layernorm: + self.ln_separate = nn.ModuleList( + [nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) for _ in range(config.num_hidden_layers)] + ) + + def forward(self, pixel_values: torch.Tensor, attention_mask): + hidden_states = self.embeddings(pixel_values) + hidden_states = self.ln_pre(hidden_states) + # NLD -> LND + hidden_states = hidden_states.permute(1, 0, 2) + + hidden_states = self.transformer(hidden_states, attention_mask) + # shape = [num_hidden_layers, hidden_size, *, grid ** 2] + hidden_states = torch.stack(hidden_states, dim=0) + # shape = [num_hidden_layers, *, hidden_size, grid ** 2] + hidden_states = hidden_states.permute(0, 2, 1, 3) + if self.share_layernorm: + hidden_states = self.ln_post(hidden_states) + else: + hidden_states_stack = [] + for hidden_states, ln in zip(hidden_states, self.ln_separate): + hidden_states = ln(hidden_states) + hidden_states_stack.append(hidden_states) + # shape = [num_hidden_layers, *, hidden_size, grid ** 2] + hidden_states = torch.stack(hidden_states_stack, dim=0) + return hidden_states + + def forward_pre(self, pixel_values: torch.Tensor): + hidden_states = self.embeddings(pixel_values) + hidden_states = self.ln_pre(hidden_states) + # NLD -> LND + hidden_states = hidden_states.permute(1, 0, 2) + return hidden_states + + def forward_post(self, hidden_state: torch.Tensor): + visual_output_post = hidden_state.permute(1, 0, 2) + visual_output_post = self.ln_post(visual_output_post) + return visual_output_post + + +class BridgeTowerLinkTower(nn.Module): + def __init__(self, config): + super().__init__() + self.link_tower_type = config.link_tower_type + self.hidden_size = config.hidden_size + if config.link_tower_type in ["add", "scaled_add", "interpolate"]: + if config.link_tower_type == "scaled_add": + self.scaled_factor = nn.Parameter(torch.tensor(1.0)) + elif config.link_tower_type == "interpolate": + self.beta = nn.Parameter(torch.tensor(0.5)) + self.LayerNorm = nn.LayerNorm(self.hidden_size, eps=config.layer_norm_eps) + else: + raise NotImplementedError(f"link_tower_type {config.link_tower_type} is not implemented") + + def forward(self, hidden_states, cross_modal_hidden_states, attention_mask): + if self.link_tower_type == "add": + return self.LayerNorm(hidden_states + cross_modal_hidden_states) + elif self.link_tower_type == "scaled_add": + return self.LayerNorm(hidden_states * self.scaled_factor + cross_modal_hidden_states) + elif self.link_tower_type == "interpolate": + return self.LayerNorm(hidden_states * (1 - self.beta) + cross_modal_hidden_states * self.beta) + else: + raise NotImplementedError(f"link_tower_type {self.link_tower_type} is not implemented") + + +# Copied from transformers.models.bert.modeling_bert.BertSelfOutput with Bert->BridgeTower +class BridgeTowerSelfOutput(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.LayerNorm(hidden_states + input_tensor) + return hidden_states + + +# Copied from transformers.models.bert.modeling_bert.BertIntermediate with Bert->BridgeTower +class BridgeTowerIntermediate(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.intermediate_size) + if isinstance(config.hidden_act, str): + self.intermediate_act_fn = ACT2FN[config.hidden_act] + else: + self.intermediate_act_fn = config.hidden_act + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.intermediate_act_fn(hidden_states) + return hidden_states + + +# Copied from transformers.models.bert.modeling_bert.BertOutput with Bert->BridgeTower +class BridgeTowerOutput(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.intermediate_size, config.hidden_size) + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + + def forward(self, hidden_states: torch.Tensor, input_tensor: torch.Tensor) -> torch.Tensor: + hidden_states = self.dense(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.LayerNorm(hidden_states + input_tensor) + return hidden_states + + +# Copied from transformers.models.bert.modeling_bert.BertPooler with Bert->BridgeTower +class BridgeTowerPooler(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.activation = nn.Tanh() + + def forward(self, hidden_states: torch.Tensor) -> torch.Tensor: + # We "pool" the model by simply taking the hidden state corresponding + # to the first token. + first_token_tensor = hidden_states[:, 0] + pooled_output = self.dense(first_token_tensor) + pooled_output = self.activation(pooled_output) + return pooled_output + + +# Copied from transformers.models.roberta.modeling_roberta.RobertaSelfAttention with Roberta->BridgeTower +class BridgeTowerSelfAttention(nn.Module): + def __init__(self, config, position_embedding_type=None): + super().__init__() + if config.hidden_size % config.num_attention_heads != 0 and not hasattr(config, "embedding_size"): + raise ValueError( + f"The hidden size ({config.hidden_size}) is not a multiple of the number of attention " + f"heads ({config.num_attention_heads})" + ) + + self.num_attention_heads = config.num_attention_heads + self.attention_head_size = int(config.hidden_size / config.num_attention_heads) + self.all_head_size = self.num_attention_heads * self.attention_head_size + + self.query = nn.Linear(config.hidden_size, self.all_head_size) + self.key = nn.Linear(config.hidden_size, self.all_head_size) + self.value = nn.Linear(config.hidden_size, self.all_head_size) + + self.dropout = nn.Dropout(config.attention_probs_dropout_prob) + self.position_embedding_type = position_embedding_type or getattr( + config, "position_embedding_type", "absolute" + ) + if self.position_embedding_type == "relative_key" or self.position_embedding_type == "relative_key_query": + self.max_position_embeddings = config.max_position_embeddings + self.distance_embedding = nn.Embedding(2 * config.max_position_embeddings - 1, self.attention_head_size) + + self.is_decoder = config.is_decoder + + def transpose_for_scores(self, x: torch.Tensor) -> torch.Tensor: + new_x_shape = x.size()[:-1] + (self.num_attention_heads, self.attention_head_size) + x = x.view(new_x_shape) + return x.permute(0, 2, 1, 3) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_value: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor]: + mixed_query_layer = self.query(hidden_states) + + # If this is instantiated as a cross-attention module, the keys + # and values come from an encoder; the attention mask needs to be + # such that the encoder's padding tokens are not attended to. + is_cross_attention = encoder_hidden_states is not None + + if is_cross_attention and past_key_value is not None: + # reuse k,v, cross_attentions + key_layer = past_key_value[0] + value_layer = past_key_value[1] + attention_mask = encoder_attention_mask + elif is_cross_attention: + key_layer = self.transpose_for_scores(self.key(encoder_hidden_states)) + value_layer = self.transpose_for_scores(self.value(encoder_hidden_states)) + attention_mask = encoder_attention_mask + elif past_key_value is not None: + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + key_layer = torch.cat([past_key_value[0], key_layer], dim=2) + value_layer = torch.cat([past_key_value[1], value_layer], dim=2) + else: + key_layer = self.transpose_for_scores(self.key(hidden_states)) + value_layer = self.transpose_for_scores(self.value(hidden_states)) + + query_layer = self.transpose_for_scores(mixed_query_layer) + + use_cache = past_key_value is not None + if self.is_decoder: + # if cross_attention save Tuple(torch.Tensor, torch.Tensor) of all cross attention key/value_states. + # Further calls to cross_attention layer can then reuse all cross-attention + # key/value_states (first "if" case) + # if uni-directional self-attention (decoder) save Tuple(torch.Tensor, torch.Tensor) of + # all previous decoder key/value_states. Further calls to uni-directional self-attention + # can concat previous decoder key/value_states to current projected key/value_states (third "elif" case) + # if encoder bi-directional self-attention `past_key_value` is always `None` + past_key_value = (key_layer, value_layer) + + # Take the dot product between "query" and "key" to get the raw attention scores. + attention_scores = torch.matmul(query_layer, key_layer.transpose(-1, -2)) + + if self.position_embedding_type == "relative_key" or self.position_embedding_type == "relative_key_query": + query_length, key_length = query_layer.shape[2], key_layer.shape[2] + if use_cache: + position_ids_l = torch.tensor(key_length - 1, dtype=torch.long, device=hidden_states.device).view( + -1, 1 + ) + else: + position_ids_l = torch.arange(query_length, dtype=torch.long, device=hidden_states.device).view(-1, 1) + position_ids_r = torch.arange(key_length, dtype=torch.long, device=hidden_states.device).view(1, -1) + distance = position_ids_l - position_ids_r + + positional_embedding = self.distance_embedding(distance + self.max_position_embeddings - 1) + positional_embedding = positional_embedding.to(dtype=query_layer.dtype) # fp16 compatibility + + if self.position_embedding_type == "relative_key": + relative_position_scores = torch.einsum("bhld,lrd->bhlr", query_layer, positional_embedding) + attention_scores = attention_scores + relative_position_scores + elif self.position_embedding_type == "relative_key_query": + relative_position_scores_query = torch.einsum("bhld,lrd->bhlr", query_layer, positional_embedding) + relative_position_scores_key = torch.einsum("bhrd,lrd->bhlr", key_layer, positional_embedding) + attention_scores = attention_scores + relative_position_scores_query + relative_position_scores_key + + attention_scores = attention_scores / math.sqrt(self.attention_head_size) + if attention_mask is not None: + # Apply the attention mask is (precomputed for all layers in BridgeTowerModel forward() function) + attention_scores = attention_scores + attention_mask + + # Normalize the attention scores to probabilities. + attention_probs = nn.functional.softmax(attention_scores, dim=-1) + + # This is actually dropping out entire tokens to attend to, which might + # seem a bit unusual, but is taken from the original Transformer paper. + attention_probs = self.dropout(attention_probs) + + # Mask heads if we want to + if head_mask is not None: + attention_probs = attention_probs * head_mask + + context_layer = torch.matmul(attention_probs, value_layer) + + context_layer = context_layer.permute(0, 2, 1, 3).contiguous() + new_context_layer_shape = context_layer.size()[:-2] + (self.all_head_size,) + context_layer = context_layer.view(new_context_layer_shape) + + outputs = (context_layer, attention_probs) if output_attentions else (context_layer,) + + if self.is_decoder: + outputs = outputs + (past_key_value,) + return outputs + + +# Copied from transformers.models.bert.modeling_bert.BertAttention with Bert->BridgeTower +class BridgeTowerAttention(nn.Module): + def __init__(self, config, position_embedding_type=None): + super().__init__() + self.self = BridgeTowerSelfAttention(config, position_embedding_type=position_embedding_type) + self.output = BridgeTowerSelfOutput(config) + self.pruned_heads = set() + + def prune_heads(self, heads): + if len(heads) == 0: + return + heads, index = find_pruneable_heads_and_indices( + heads, self.self.num_attention_heads, self.self.attention_head_size, self.pruned_heads + ) + + # Prune linear layers + self.self.query = prune_linear_layer(self.self.query, index) + self.self.key = prune_linear_layer(self.self.key, index) + self.self.value = prune_linear_layer(self.self.value, index) + self.output.dense = prune_linear_layer(self.output.dense, index, dim=1) + + # Update hyper params and store pruned heads + self.self.num_attention_heads = self.self.num_attention_heads - len(heads) + self.self.all_head_size = self.self.attention_head_size * self.self.num_attention_heads + self.pruned_heads = self.pruned_heads.union(heads) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_value: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor]: + self_outputs = self.self( + hidden_states, + attention_mask, + head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + ) + attention_output = self.output(self_outputs[0], hidden_states) + outputs = (attention_output,) + self_outputs[1:] # add attentions if we output them + return outputs + + +class BridgeTowerBertCrossLayer(nn.Module): + def __init__(self, config): + super().__init__() + self.chunk_size_feed_forward = config.chunk_size_feed_forward + self.seq_len_dim = 1 + self.attention = BridgeTowerAttention(config) + self.is_decoder = config.is_decoder + self.add_cross_attention = config.add_cross_attention + self.crossattention = BridgeTowerAttention(config) + self.intermediate = BridgeTowerIntermediate(config) + self.output = BridgeTowerOutput(config) + + def forward( + self, + hidden_states, + encoder_hidden_states, + attention_mask=None, + head_mask=None, + encoder_attention_mask=None, + past_key_value=None, + output_attentions=False, + ): + # decoder uni-directional self-attention cached key/values tuple is at positions 1,2 + self_attention_outputs = self.attention( + hidden_states, + attention_mask=attention_mask, + head_mask=None, + output_attentions=output_attentions, + past_key_value=None, + ) + attention_output = self_attention_outputs[0] + + # if decoder, the last output is tuple of self-attn cache + # add self attentions if we output attention weights + outputs = self_attention_outputs[1:] + + cross_attention_outputs = self.crossattention( + attention_output, + attention_mask=attention_mask, + head_mask=head_mask, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_attention_mask, + past_key_value=past_key_value, + output_attentions=output_attentions, + ) + attention_output = cross_attention_outputs[0] + # add cross attentions if we output attention weights + outputs = outputs + cross_attention_outputs[1:-1] + + layer_output = apply_chunking_to_forward( + self.feed_forward_chunk, self.chunk_size_feed_forward, self.seq_len_dim, attention_output + ) + outputs = (layer_output,) + outputs + + return outputs + + def feed_forward_chunk(self, attention_output): + intermediate_output = self.intermediate(attention_output) + layer_output = self.output(intermediate_output, attention_output) + return layer_output + + +class BridgeTowerTextLayer(nn.Module): + def __init__(self, config): + super().__init__() + self.chunk_size_feed_forward = config.chunk_size_feed_forward + self.seq_len_dim = 1 + self.attention = BridgeTowerAttention(config) + self.is_decoder = config.is_decoder + self.add_cross_attention = config.add_cross_attention + if self.add_cross_attention: + if not self.is_decoder: + raise ValueError(f"{self} should be used as a decoder model if cross attention is added") + self.crossattention = BridgeTowerAttention(config, position_embedding_type="absolute") + self.intermediate = BridgeTowerIntermediate(config) + self.output = BridgeTowerOutput(config) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_value: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + output_attentions: Optional[bool] = False, + ) -> Tuple[torch.Tensor]: + # decoder uni-directional self-attention cached key/values tuple is at positions 1,2 + self_attn_past_key_value = past_key_value[:2] if past_key_value is not None else None + self_attention_outputs = self.attention( + hidden_states, + attention_mask, + head_mask, + output_attentions=output_attentions, + past_key_value=self_attn_past_key_value, + ) + attention_output = self_attention_outputs[0] + + # if decoder, the last output is tuple of self-attn cache + if self.is_decoder: + outputs = self_attention_outputs[1:-1] + present_key_value = self_attention_outputs[-1] + else: + outputs = self_attention_outputs[1:] # add self attentions if we output attention weights + + cross_attn_present_key_value = None + if self.is_decoder and encoder_hidden_states is not None: + if not hasattr(self, "crossattention"): + raise ValueError( + f"If `encoder_hidden_states` are passed, {self} has to be instantiated with cross-attention layers" + " by setting `config.add_cross_attention=True`" + ) + + # cross_attn cached key/values tuple is at positions 3,4 of past_key_value tuple + cross_attn_past_key_value = past_key_value[-2:] if past_key_value is not None else None + cross_attention_outputs = self.crossattention( + attention_output, + attention_mask, + head_mask, + encoder_hidden_states, + encoder_attention_mask, + cross_attn_past_key_value, + output_attentions, + ) + attention_output = cross_attention_outputs[0] + outputs = outputs + cross_attention_outputs[1:-1] # add cross attentions if we output attention weights + + # add cross-attn cache to positions 3,4 of present_key_value tuple + cross_attn_present_key_value = cross_attention_outputs[-1] + present_key_value = present_key_value + cross_attn_present_key_value + + layer_output = apply_chunking_to_forward( + self.feed_forward_chunk, self.chunk_size_feed_forward, self.seq_len_dim, attention_output + ) + outputs = (layer_output,) + outputs + + # if decoder, return the attn key/values as the last output + if self.is_decoder: + outputs = outputs + (present_key_value,) + + return outputs + + def feed_forward_chunk(self, attention_output): + intermediate_output = self.intermediate(attention_output) + layer_output = self.output(intermediate_output, attention_output) + return layer_output + + +# Copied from transformers.models.roberta.modeling_roberta.RobertaEncoder with Roberta->BridgeTowerText +class BridgeTowerTextEncoder(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.layer = nn.ModuleList([BridgeTowerTextLayer(config) for _ in range(config.num_hidden_layers)]) + self.gradient_checkpointing = False + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + encoder_hidden_states: Optional[torch.FloatTensor] = None, + encoder_attention_mask: Optional[torch.FloatTensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = False, + output_hidden_states: Optional[bool] = False, + return_dict: Optional[bool] = True, + ) -> Union[Tuple[torch.Tensor], BaseModelOutputWithPastAndCrossAttentions]: + all_hidden_states = () if output_hidden_states else None + all_self_attentions = () if output_attentions else None + all_cross_attentions = () if output_attentions and self.config.add_cross_attention else None + + if self.gradient_checkpointing and self.training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + next_decoder_cache = () if use_cache else None + for i, layer_module in enumerate(self.layer): + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + layer_head_mask = head_mask[i] if head_mask is not None else None + past_key_value = past_key_values[i] if past_key_values is not None else None + + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + layer_module.__call__, + hidden_states, + attention_mask, + layer_head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + ) + else: + layer_outputs = layer_module( + hidden_states, + attention_mask, + layer_head_mask, + encoder_hidden_states, + encoder_attention_mask, + past_key_value, + output_attentions, + ) + + hidden_states = layer_outputs[0] + if use_cache: + next_decoder_cache += (layer_outputs[-1],) + if output_attentions: + all_self_attentions = all_self_attentions + (layer_outputs[1],) + if self.config.add_cross_attention: + all_cross_attentions = all_cross_attentions + (layer_outputs[2],) + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple( + v + for v in [ + hidden_states, + next_decoder_cache, + all_hidden_states, + all_self_attentions, + all_cross_attentions, + ] + if v is not None + ) + return BaseModelOutputWithPastAndCrossAttentions( + last_hidden_state=hidden_states, + past_key_values=next_decoder_cache, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + cross_attentions=all_cross_attentions, + ) + + +# Copied from transformers.models.roberta.modeling_roberta.RobertaEmbeddings with Roberta->BridgeTowerText +class BridgeTowerTextEmbeddings(nn.Module): + """ + Same as BertEmbeddings with a tiny tweak for positional embeddings indexing. + """ + + # Copied from transformers.models.bert.modeling_bert.BertEmbeddings.__init__ + def __init__(self, config): + super().__init__() + self.word_embeddings = nn.Embedding(config.vocab_size, config.hidden_size, padding_idx=config.pad_token_id) + self.position_embeddings = nn.Embedding(config.max_position_embeddings, config.hidden_size) + self.token_type_embeddings = nn.Embedding(config.type_vocab_size, config.hidden_size) + + # self.LayerNorm is not snake-cased to stick with TensorFlow model variable name and be able to load + # any TensorFlow checkpoint file + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.dropout = nn.Dropout(config.hidden_dropout_prob) + # position_ids (1, len position emb) is contiguous in memory and exported when serialized + self.position_embedding_type = getattr(config, "position_embedding_type", "absolute") + self.register_buffer( + "position_ids", torch.arange(config.max_position_embeddings).expand((1, -1)), persistent=False + ) + self.register_buffer( + "token_type_ids", torch.zeros(self.position_ids.size(), dtype=torch.long), persistent=False + ) + + # End copy + self.padding_idx = config.pad_token_id + self.position_embeddings = nn.Embedding( + config.max_position_embeddings, config.hidden_size, padding_idx=self.padding_idx + ) + + def forward( + self, input_ids=None, token_type_ids=None, position_ids=None, inputs_embeds=None, past_key_values_length=0 + ): + if position_ids is None: + if input_ids is not None: + # Create the position ids from the input token ids. Any padded tokens remain padded. + position_ids = create_position_ids_from_input_ids(input_ids, self.padding_idx, past_key_values_length) + else: + position_ids = self.create_position_ids_from_inputs_embeds(inputs_embeds) + + if input_ids is not None: + input_shape = input_ids.size() + else: + input_shape = inputs_embeds.size()[:-1] + + seq_length = input_shape[1] + + # Setting the token_type_ids to the registered buffer in constructor where it is all zeros, which usually occurs + # when its auto-generated, registered buffer helps users when tracing the model without passing token_type_ids, solves + # issue #5664 + if token_type_ids is None: + if hasattr(self, "token_type_ids"): + buffered_token_type_ids = self.token_type_ids[:, :seq_length] + buffered_token_type_ids_expanded = buffered_token_type_ids.expand(input_shape[0], seq_length) + token_type_ids = buffered_token_type_ids_expanded + else: + token_type_ids = torch.zeros(input_shape, dtype=torch.long, device=self.position_ids.device) + + if inputs_embeds is None: + inputs_embeds = self.word_embeddings(input_ids) + token_type_embeddings = self.token_type_embeddings(token_type_ids) + + embeddings = inputs_embeds + token_type_embeddings + if self.position_embedding_type == "absolute": + position_embeddings = self.position_embeddings(position_ids) + embeddings += position_embeddings + embeddings = self.LayerNorm(embeddings) + embeddings = self.dropout(embeddings) + return embeddings + + def create_position_ids_from_inputs_embeds(self, inputs_embeds): + """ + We are provided embeddings directly. We cannot infer which are padded so just generate sequential position ids. + + Args: + inputs_embeds: torch.Tensor + + Returns: torch.Tensor + """ + input_shape = inputs_embeds.size()[:-1] + sequence_length = input_shape[1] + + position_ids = torch.arange( + self.padding_idx + 1, sequence_length + self.padding_idx + 1, dtype=torch.long, device=inputs_embeds.device + ) + return position_ids.unsqueeze(0).expand(input_shape) + + +# Copied from transformers.models.roberta.modeling_roberta.create_position_ids_from_input_ids +def create_position_ids_from_input_ids(input_ids, padding_idx, past_key_values_length=0): + """ + Replace non-padding symbols with their position numbers. Position numbers begin at padding_idx+1. Padding symbols + are ignored. This is modified from fairseq's `utils.make_positions`. + + Args: + x: torch.Tensor x: + + Returns: torch.Tensor + """ + # The series of casts and type-conversions here are carefully balanced to both work with ONNX export and XLA. + mask = input_ids.ne(padding_idx).int() + incremental_indices = (torch.cumsum(mask, dim=1).type_as(mask) + past_key_values_length) * mask + return incremental_indices.long() + padding_idx + + +class BridgeTowerPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = BridgeTowerConfig + base_model_prefix = "bridgetower" + supports_gradient_checkpointing = False + _no_split_modules = ["BridgeTowerSelfAttention", "BridgeTowerResidualAttention"] + _skip_keys_device_placement = "past_key_values" + + def _init_weights(self, module): + if isinstance(module, BridgeTowerVisionModel): + proj_std = (module.visual.transformer.hidden_size**-0.5) * ( + (2 * module.visual.transformer.num_hidden_layers) ** -0.5 + ) + attn_std = module.visual.transformer.hidden_size**-0.5 + fc_std = (2 * module.visual.transformer.hidden_size) ** -0.5 + for block in module.visual.transformer.resblocks: + nn.init.normal_(block.attn.in_proj_weight, std=attn_std * self.config.initializer_factor) + nn.init.normal_(block.attn.out_proj.weight, std=proj_std * self.config.initializer_factor) + nn.init.normal_(block.mlp.c_fc.weight, std=fc_std * self.config.initializer_factor) + nn.init.normal_(block.mlp.c_proj.weight, std=proj_std * self.config.initializer_factor) + + nn.init.normal_(module.visual.embeddings.class_embedding, std=attn_std * self.config.initializer_factor) + nn.init.normal_( + module.visual.embeddings.position_embedding.weight, std=attn_std * self.config.initializer_factor + ) + elif isinstance(module, (nn.Linear, nn.Conv2d, nn.Embedding)): + module.weight.data.normal_(mean=0.0, std=0.05 * self.config.initializer_factor) + elif isinstance(module, nn.LayerNorm): + module.bias.data.zero_() + module.weight.data.fill_(1.0) + + if isinstance(module, nn.Linear) and module.bias is not None: + module.bias.data.zero_() + + +class BridgeTowerVisionModel(BridgeTowerPreTrainedModel): + config_class = BridgeTowerVisionConfig + + def __init__(self, config): + super().__init__(config) + self.visual = BridgeTowerVisionTransformer(config) + + @property + def dtype(self): + return self.visual.embeddings.patch_embedding.weight.dtype + + def forward(self, image, image_mask=None): + return self.visual(image.type(self.dtype), image_mask) + + +class BridgeTowerTextModel(BridgeTowerPreTrainedModel): + """ + + The model can behave as an encoder (with only self-attention) as well as a decoder, in which case a layer of + cross-attention is added between the self-attention layers, following the architecture described in *Attention is + all you need*_ by Ashish Vaswani, Noam Shazeer, Niki Parmar, Jakob Uszkoreit, Llion Jones, Aidan N. Gomez, Lukasz + Kaiser and Illia Polosukhin. + + To behave as an decoder the model needs to be initialized with the `is_decoder` argument of the configuration set + to `True`. To be used in a Seq2Seq model, the model needs to initialized with both `is_decoder` argument and + `add_cross_attention` set to `True`; an `encoder_hidden_states` is then expected as an input to the forward pass. + + .. _*Attention is all you need*: https://arxiv.org/abs/1706.03762 + + """ + + config_class = BridgeTowerTextConfig + + def __init__(self, config, add_pooling_layer=True): + super().__init__(config) + self.config = config + + self.embeddings = BridgeTowerTextEmbeddings(config) + self.encoder = BridgeTowerTextEncoder(config) + + self.pooler = BridgeTowerPooler(config) if add_pooling_layer else None + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.embeddings.word_embeddings + + def set_input_embeddings(self, value): + self.embeddings.word_embeddings = value + + def _prune_heads(self, heads_to_prune): + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base + class PreTrainedModel + """ + for layer, heads in heads_to_prune.items(): + self.encoder.layer[layer].attention.prune_heads(heads) + + # Copied from transformers.models.roberta.modeling_roberta.RobertaModel.forward + def forward( + self, + input_ids: Optional[torch.Tensor] = None, + attention_mask: Optional[torch.Tensor] = None, + token_type_ids: Optional[torch.Tensor] = None, + position_ids: Optional[torch.Tensor] = None, + head_mask: Optional[torch.Tensor] = None, + inputs_embeds: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.Tensor], BaseModelOutputWithPoolingAndCrossAttentions]: + r""" + encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention if + the model is configured as a decoder. + encoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on the padding token indices of the encoder input. This mask is used in + the cross-attention if the model is configured as a decoder. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + past_key_values (`tuple(tuple(torch.FloatTensor))` of length `config.n_layers` with each tuple having 4 tensors of shape `(batch_size, num_heads, sequence_length - 1, embed_size_per_head)`): + Contains precomputed key and value hidden states of the attention blocks. Can be used to speed up decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if self.config.is_decoder: + use_cache = use_cache if use_cache is not None else self.config.use_cache + else: + use_cache = False + + if input_ids is not None and inputs_embeds is not None: + raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time") + elif input_ids is not None: + self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask) + input_shape = input_ids.size() + elif inputs_embeds is not None: + input_shape = inputs_embeds.size()[:-1] + else: + raise ValueError("You have to specify either input_ids or inputs_embeds") + + batch_size, seq_length = input_shape + device = input_ids.device if input_ids is not None else inputs_embeds.device + + # past_key_values_length + past_key_values_length = past_key_values[0][0].shape[2] if past_key_values is not None else 0 + + if attention_mask is None: + attention_mask = torch.ones(((batch_size, seq_length + past_key_values_length)), device=device) + + if token_type_ids is None: + if hasattr(self.embeddings, "token_type_ids"): + buffered_token_type_ids = self.embeddings.token_type_ids[:, :seq_length] + buffered_token_type_ids_expanded = buffered_token_type_ids.expand(batch_size, seq_length) + token_type_ids = buffered_token_type_ids_expanded + else: + token_type_ids = torch.zeros(input_shape, dtype=torch.long, device=device) + + # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length] + # ourselves in which case we just need to make it broadcastable to all heads. + extended_attention_mask: torch.Tensor = self.get_extended_attention_mask(attention_mask, input_shape) + + # If a 2D or 3D attention mask is provided for the cross-attention + # we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length] + if self.config.is_decoder and encoder_hidden_states is not None: + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states.size() + encoder_hidden_shape = (encoder_batch_size, encoder_sequence_length) + if encoder_attention_mask is None: + encoder_attention_mask = torch.ones(encoder_hidden_shape, device=device) + encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_extended_attention_mask = None + + # Prepare head mask if needed + # 1.0 in head_mask indicate we keep the head + # attention_probs has shape bsz x n_heads x N x N + # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] + # and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length] + head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers) + + embedding_output = self.embeddings( + input_ids=input_ids, + position_ids=position_ids, + token_type_ids=token_type_ids, + inputs_embeds=inputs_embeds, + past_key_values_length=past_key_values_length, + ) + encoder_outputs = self.encoder( + embedding_output, + attention_mask=extended_attention_mask, + head_mask=head_mask, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_extended_attention_mask, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + sequence_output = encoder_outputs[0] + pooled_output = self.pooler(sequence_output) if self.pooler is not None else None + + if not return_dict: + return (sequence_output, pooled_output) + encoder_outputs[1:] + + return BaseModelOutputWithPoolingAndCrossAttentions( + last_hidden_state=sequence_output, + pooler_output=pooled_output, + past_key_values=encoder_outputs.past_key_values, + hidden_states=encoder_outputs.hidden_states, + attentions=encoder_outputs.attentions, + cross_attentions=encoder_outputs.cross_attentions, + ) + + +@add_start_docstrings( + "The bare BridgeTower Model transformer outputting BridgeTowerModelOutput object without any specific head on" + " top.", + BRIDGETOWER_START_DOCSTRING, +) +class BridgeTowerModel(BridgeTowerPreTrainedModel): + def __init__(self, config): + super().__init__(config) + self.config = config + vision_config = config.vision_config + text_config = config.text_config + + if config.share_cross_modal_transformer_layers: + self.cross_modal_text_transform = nn.Linear(text_config.hidden_size, config.hidden_size) + self.cross_modal_image_transform = nn.Linear(vision_config.hidden_size, config.hidden_size) + else: + self.cross_modal_text_transform = nn.ModuleList( + [nn.Linear(text_config.hidden_size, config.hidden_size) for _ in range(config.num_hidden_layers)] + ) + self.cross_modal_image_transform = nn.ModuleList( + [nn.Linear(vision_config.hidden_size, config.hidden_size) for _ in range(config.num_hidden_layers)] + ) + + self.token_type_embeddings = nn.Embedding(2, config.hidden_size) + + self.vision_model = BridgeTowerVisionModel(vision_config) + + self.text_model = BridgeTowerTextModel(text_config) + + if not vision_config.share_layernorm and config.init_layernorm_from_vision_encoder: + for ln in self.vision_model.visual.cross_modal_ln_separate: + ln.weight.data = self.vision_model.visual.ln_post.weight.data + ln.bias.data = self.vision_model.visual.ln_post.bias.data + + self.cross_modal_image_layers = nn.ModuleList( + [BridgeTowerBertCrossLayer(text_config) for _ in range(config.num_hidden_layers)] + ) + self.cross_modal_text_layers = nn.ModuleList( + [BridgeTowerBertCrossLayer(text_config) for _ in range(config.num_hidden_layers)] + ) + + # Class token => Linear => Tanh + self.cross_modal_image_pooler = BridgeTowerPooler(config) + self.cross_modal_text_pooler = BridgeTowerPooler(config) + + # Initialize BridgeTower Components + self.cross_modal_text_layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.cross_modal_image_layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + + if config.share_link_tower_layers: + self.cross_modal_text_link_tower = BridgeTowerLinkTower(config) + self.cross_modal_image_link_tower = BridgeTowerLinkTower(config) + else: + self.cross_modal_text_link_tower = nn.ModuleList( + [BridgeTowerLinkTower(config) for _ in range(config.num_hidden_layers - 1)] + ) + self.cross_modal_image_link_tower = nn.ModuleList( + [BridgeTowerLinkTower(config) for _ in range(config.num_hidden_layers - 1)] + ) + + self.post_init() + + def get_input_embeddings(self): + return self.text_model.get_input_embeddings() + + def set_input_embeddings(self, value): + self.text_model.set_input_embeddings(value) + + @add_start_docstrings_to_model_forward(BRIDGETOWER_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=BridgeTowerModelOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + token_type_ids: Optional[torch.LongTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + image_embeds: Optional[torch.FloatTensor] = None, + image_token_type_idx: Optional[int] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + labels: Optional[torch.LongTensor] = None, + ) -> Union[Tuple[torch.Tensor], BridgeTowerModelOutput]: + r""" + output_hidden_states (`bool`, *optional*): + If set to `True`, hidden states are returned as a list containing the hidden states of text, image, and + cross-modal components respectively. i.e. `(hidden_states_text, hidden_states_image, + hidden_states_cross_modal)` where each element is a list of the hidden states of the corresponding + modality. `hidden_states_txt/img` are a list of tensors corresponding to unimodal hidden states and + `hidden_states_cross_modal` is a list of tuples containing `cross_modal_text_hidden_states` and + `cross_modal_image_hidden_states` of each brdige layer. + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels are currently not supported. + Returns: + + Examples: + + ```python + >>> from transformers import BridgeTowerProcessor, BridgeTowerModel + >>> from PIL import Image + >>> import requests + + >>> # prepare image and text + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + >>> text = "hello world" + >>> processor = BridgeTowerProcessor.from_pretrained("BridgeTower/bridgetower-base") + >>> model = BridgeTowerModel.from_pretrained("BridgeTower/bridgetower-base") + + >>> inputs = processor(image, text, return_tensors="pt") + >>> outputs = model(**inputs) + >>> outputs.keys() + odict_keys(['text_features', 'image_features', 'pooler_output']) + ```""" + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + all_hidden_states_text = () if output_hidden_states else None + all_hidden_states_image = () if output_hidden_states else None + all_hidden_states_cross = () if output_hidden_states else None + all_hidden_states = () if output_hidden_states else None + all_self_attentions = () if output_attentions else None + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + image_token_type_idx = image_token_type_idx if image_token_type_idx else 1 + input_shape = input_ids.size() + text_embeds = self.text_model.embeddings(input_ids=input_ids) + + if output_hidden_states: + all_hidden_states_text += (text_embeds,) + + if attention_mask is None: + attention_mask = torch.ones(input_shape, dtype=torch.long, device=input_ids.device) + extend_text_masks = self.text_model.get_extended_attention_mask(attention_mask, input_shape).to( + input_ids.device + ) + + # The split_index determines how many layers of the uni-modal encoder are applied before the cross-modal encoder + split_index = len(self.text_model.encoder.layer) - self.config.num_hidden_layers + 1 + + # Run the first 'split_index' layers of the textual encoder + for layer in self.text_model.encoder.layer[:split_index]: + text_embeds = layer(text_embeds, extend_text_masks)[0] + + if output_hidden_states: + all_hidden_states_text += (text_embeds,) + + if image_embeds is None: + image_embeds = self.vision_model.visual.forward_pre(pixel_values.type(self.vision_model.dtype)) + else: + # Permute as BridgeTowerResidualAttention has batch_first=True + image_embeds = image_embeds.permute(1, 0, 2) + + if output_hidden_states: + all_hidden_states_image += (image_embeds,) + + # Run the first 'split_index' layers of the visual encoder + for block in self.vision_model.visual.transformer.resblocks[:split_index]: + image_embeds = block(image_embeds) + if output_hidden_states: + all_hidden_states_image += (image_embeds,) + + image_embeds_with_ln = self.vision_model.visual.forward_post(image_embeds.type(self.vision_model.dtype)) + + # first layer is a special case because we don't have the output from the cross-encoder yet + cross_modal_text = self.cross_modal_text_transform(text_embeds) + + text_token_type_embeddings = self.token_type_embeddings( + torch.zeros(1, dtype=torch.long, device=input_ids.device) + ).expand_as(cross_modal_text) + + cross_modal_text = self.cross_modal_text_layernorm(cross_modal_text + text_token_type_embeddings) + + image_embeds_with_ln = self.cross_modal_image_transform(image_embeds_with_ln) + image_token_type_embeddings = self.token_type_embeddings( + torch.full((1,), image_token_type_idx, dtype=torch.long, device=input_ids.device) + ).expand_as(image_embeds_with_ln) + + image_embeds_with_ln = image_embeds_with_ln + image_token_type_embeddings + cross_modal_image = self.cross_modal_image_layernorm(image_embeds_with_ln) + + pixel_mask = torch.ones( + (cross_modal_image.size(0), cross_modal_image.size(1)), + dtype=torch.long, + device=input_ids.device, + ) + extend_image_masks = self.text_model.get_extended_attention_mask(pixel_mask, pixel_mask.size()).to( + input_ids.device + ) + + layer_outputs_text = self.cross_modal_text_layers[0]( + cross_modal_text, + cross_modal_image, + attention_mask=extend_text_masks, + encoder_attention_mask=extend_image_masks, + output_attentions=output_attentions, + ) + cross_text_features = layer_outputs_text[0] + + layer_outputs_image = self.cross_modal_image_layers[0]( + cross_modal_image, + cross_modal_text, + attention_mask=extend_image_masks, + encoder_attention_mask=extend_text_masks, + output_attentions=output_attentions, + ) + cross_image_features = layer_outputs_image[0] + + if output_hidden_states: + all_hidden_states_cross += ((cross_text_features, cross_image_features),) + + if output_attentions: + all_self_attentions += ((layer_outputs_text[1], layer_outputs_image[1]),) + + link_layer_index = 0 + + # Each of the top 6 layers of the visual and textual encoders ([split_index:]) is connected to each layer of + # the cross-modal encoder via bridge layers, which brings bottom-up alignment and fusion to the cross-modal encoder. + for i in range(split_index, len(self.text_model.encoder.layer)): + text_embeds = self.text_model.encoder.layer[i](text_embeds, extend_text_masks)[0] + image_embeds = self.vision_model.visual.transformer.resblocks[i](image_embeds).type( + self.vision_model.dtype + ) + image_embeds_with_ln = ( + self.cross_modal_image_transform(self.vision_model.visual.forward_post(image_embeds)) + + image_token_type_embeddings + ) + + text_link_tower = self.cross_modal_text_link_tower[link_layer_index] + image_link_tower = self.cross_modal_image_link_tower[link_layer_index] + + # Bridge layers for textual and visual encoders + cross_text_features_ = text_link_tower( + self.cross_modal_text_transform(text_embeds) + text_token_type_embeddings, + cross_text_features, + extend_text_masks, + ) + cross_image_features_ = image_link_tower(image_embeds_with_ln, cross_image_features, extend_image_masks) + + # Cross-modal encoder via bridge layers of textual and visual encoders + layer_outputs_text = self.cross_modal_text_layers[link_layer_index + 1]( + cross_text_features_, + cross_image_features_, + attention_mask=extend_text_masks, + encoder_attention_mask=extend_image_masks, + output_attentions=output_attentions, + ) + cross_text_features = layer_outputs_text[0] + + layer_outputs_image = self.cross_modal_image_layers[link_layer_index + 1]( + cross_image_features_, + cross_text_features_, + attention_mask=extend_image_masks, + encoder_attention_mask=extend_text_masks, + output_attentions=output_attentions, + ) + cross_image_features = layer_outputs_image[0] + + link_layer_index += 1 + + if output_hidden_states: + all_hidden_states_text += (text_embeds,) + all_hidden_states_image += (image_embeds,) + all_hidden_states_cross += ((cross_text_features, cross_image_features),) + + if output_attentions: + all_self_attentions += ((layer_outputs_text[1], layer_outputs_image[1]),) + + # Concatenate the cls token of the text and image features to get the final represtation + text_features, image_features = cross_text_features, cross_image_features + cls_features = self.get_cls_features(text_features, image_features) + + if output_hidden_states: + all_hidden_states = (all_hidden_states_text, all_hidden_states_image, all_hidden_states_cross) + + if not return_dict: + return tuple( + v + for v in [text_features, image_features, cls_features, all_hidden_states, all_self_attentions] + if v is not None + ) + + return BridgeTowerModelOutput( + text_features=text_features, + image_features=image_features, + pooler_output=cls_features, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + ) + + def get_cls_features(self, text_features, image_features): + cls_features_text = self.cross_modal_text_pooler(text_features) + cls_features_image = self.cross_modal_image_pooler(image_features) + return torch.cat([cls_features_text, cls_features_image], dim=-1) + + +# Copied from transformers.models.vilt.modeling_vilt.ViltPredictionHeadTransform with Vilt->BridgeTower +class BridgeTowerPredictionHeadTransform(nn.Module): + def __init__(self, config): + super().__init__() + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + if isinstance(config.hidden_act, str): + self.transform_act_fn = ACT2FN[config.hidden_act] + else: + self.transform_act_fn = config.hidden_act + self.LayerNorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + + def forward(self, hidden_states): + hidden_states = self.dense(hidden_states) + hidden_states = self.transform_act_fn(hidden_states) + hidden_states = self.LayerNorm(hidden_states) + return hidden_states + + +class BridgeTowerMLMHead(nn.Module): + def __init__(self, config, weight=None): + super().__init__() + self.config = config + self.transform = BridgeTowerPredictionHeadTransform(config) + self.decoder = nn.Linear(config.hidden_size, config.text_config.vocab_size, bias=False) + self.bias = nn.Parameter(torch.zeros(config.text_config.vocab_size)) + if weight is not None: + self.decoder.weight = weight + + def forward(self, x): + mlm_score = self.transform(x) + mlm_score = self.decoder(mlm_score) + self.bias + return mlm_score + + +class BridgeTowerITMHead(nn.Module): + def __init__(self, hidden_size): + super().__init__() + self.fc = nn.Linear(hidden_size, 2) + + def forward(self, x): + itm_score = self.fc(x) + return itm_score + + +@add_start_docstrings( + """ + BridgeTower Model with a language modeling head on top as done during pretraining. + """, + BRIDGETOWER_START_DOCSTRING, +) +class BridgeTowerForMaskedLM(BridgeTowerPreTrainedModel): + _tied_weights_keys = ["mlm_score.decoder.weight"] + + def __init__(self, config): + super().__init__(config) + + self.bridgetower = BridgeTowerModel(config) + self.mlm_score = BridgeTowerMLMHead(config) + + # Initialize weights and apply final processing + self.post_init() + + def get_output_embeddings(self): + return self.mlm_score.decoder + + def set_output_embeddings(self, new_embeddings): + self.mlm_score.decoder = new_embeddings + + @add_start_docstrings_to_model_forward(BRIDGETOWER_INPUTS_DOCSTRING.format("batch_size, sequence_length")) + @replace_return_docstrings(output_type=MaskedLMOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + token_type_ids: Optional[torch.LongTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + image_embeds: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + labels: Optional[torch.LongTensor] = None, + ) -> Union[MaskedLMOutput, Tuple[torch.FloatTensor]]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the masked language modeling loss. Indices should be in `[-100, 0, ..., + config.vocab_size]` (see `input_ids` docstring) Tokens with indices set to `-100` are ignored (masked), the + loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]` + Returns: + + Examples: + + ```python + >>> from transformers import BridgeTowerProcessor, BridgeTowerForMaskedLM + >>> from PIL import Image + >>> import requests + + >>> url = "http://images.cocodataset.org/val2017/000000360943.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw).convert("RGB") + >>> text = "a looking out of the window" + + >>> processor = BridgeTowerProcessor.from_pretrained("BridgeTower/bridgetower-base-itm-mlm") + >>> model = BridgeTowerForMaskedLM.from_pretrained("BridgeTower/bridgetower-base-itm-mlm") + + >>> # prepare inputs + >>> encoding = processor(image, text, return_tensors="pt") + + >>> # forward pass + >>> outputs = model(**encoding) + + >>> results = processor.decode(outputs.logits.argmax(dim=-1).squeeze(0).tolist()) + + >>> print(results) + .a cat looking out of the window. + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + outputs = self.bridgetower( + input_ids, + attention_mask=attention_mask, + token_type_ids=token_type_ids, + pixel_values=pixel_values, + pixel_mask=pixel_mask, + head_mask=head_mask, + inputs_embeds=inputs_embeds, + image_embeds=image_embeds, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + mlm_logits = self.mlm_score(outputs.text_features if return_dict else outputs[0]) + masked_lm_loss = None + if labels is not None: + loss_fct = CrossEntropyLoss() # -100 index = padding token + + labels = labels.to(mlm_logits.device) + masked_lm_loss = loss_fct(mlm_logits.view(-1, self.config.text_config.vocab_size), labels.view(-1)) + + if not return_dict: + output = tuple(mlm_logits) + return ((masked_lm_loss,) + output) if masked_lm_loss is not None else output + + return MaskedLMOutput( + loss=masked_lm_loss, + logits=mlm_logits, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) + + +@add_start_docstrings( + """ + BridgeTower Model transformer with a classifier head on top (a linear layer on top of the final hidden state of the + [CLS] token) for image-to-text matching. + """, + BRIDGETOWER_START_DOCSTRING, +) +class BridgeTowerForImageAndTextRetrieval(BridgeTowerPreTrainedModel): + def __init__(self, config): + super().__init__(config) + + self.bridgetower = BridgeTowerModel(config) + + self.itm_score = BridgeTowerITMHead(config.hidden_size * 2) + + # Initialize weights and apply final processing + self.post_init() + + @add_start_docstrings_to_model_forward(BRIDGETOWER_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=SequenceClassifierOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + token_type_ids: Optional[torch.LongTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + image_embeds: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + labels: Optional[torch.LongTensor] = None, + ) -> Union[SequenceClassifierOutput, Tuple[torch.FloatTensor]]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, 1)`, *optional*): + Labels for computing the image-text matching loss. 0 means the pairs don't match and 1 means they match. + The pairs with 0 will be skipped for calculation. + Returns: + + Examples: + + ```python + >>> from transformers import BridgeTowerProcessor, BridgeTowerForImageAndTextRetrieval + >>> import requests + >>> from PIL import Image + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + >>> texts = ["An image of two cats chilling on a couch", "A football player scoring a goal"] + + >>> processor = BridgeTowerProcessor.from_pretrained("BridgeTower/bridgetower-base-itm-mlm") + >>> model = BridgeTowerForImageAndTextRetrieval.from_pretrained("BridgeTower/bridgetower-base-itm-mlm") + + >>> # forward pass + >>> scores = dict() + >>> for text in texts: + ... # prepare inputs + ... encoding = processor(image, text, return_tensors="pt") + ... outputs = model(**encoding) + ... scores[text] = outputs.logits[0, 1].item() + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + outputs = self.bridgetower( + input_ids, + attention_mask=attention_mask, + token_type_ids=token_type_ids, + pixel_values=pixel_values, + pixel_mask=pixel_mask, + head_mask=head_mask, + inputs_embeds=inputs_embeds, + image_embeds=image_embeds, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + pooler_output = outputs.pooler_output if return_dict else outputs[2] + + logits = self.itm_score(pooler_output) + + itm_loss = None + if labels is not None: + loss_fct = CrossEntropyLoss() + + labels = labels.to(logits.device) + itm_loss = loss_fct(logits, labels) + + if not return_dict: + output = tuple(logits) + return ((itm_loss,) + output) if itm_loss is not None else output + + return SequenceClassifierOutput( + loss=itm_loss, + logits=logits, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) + + +class BridgeTowerContrastiveHead(nn.Module): + def __init__(self, hidden_size, embed_size): + super().__init__() + self.fc = nn.Linear(hidden_size, embed_size) + + def forward(self, x): + x = self.fc(x) + return x + + +@add_start_docstrings( + """ + BridgeTower Model with a image-text contrastive head on top computing image-text contrastive loss. + """, + BRIDGETOWER_START_DOCSTRING, +) +class BridgeTowerForContrastiveLearning(BridgeTowerPreTrainedModel): + def __init__(self, config): + super().__init__(config) + + self.bridgetower = BridgeTowerModel(config) + + self.itc_text_head = BridgeTowerContrastiveHead(config.hidden_size, config.contrastive_hidden_size) + self.itc_image_head = BridgeTowerContrastiveHead(config.hidden_size, config.contrastive_hidden_size) + self.itc_cross_modal_head = BridgeTowerContrastiveHead(config.hidden_size * 2, config.contrastive_hidden_size) + + self.logit_scale = nn.Parameter(torch.tensor(self.config.logit_scale_init_value)) + # Initialize weights and apply final processing + self.post_init() + + @add_start_docstrings_to_model_forward(BRIDGETOWER_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=BridgeTowerContrastiveOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + token_type_ids: Optional[torch.LongTensor] = None, + pixel_values: Optional[torch.FloatTensor] = None, + pixel_mask: Optional[torch.LongTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + image_embeds: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = True, + return_dict: Optional[bool] = None, + return_loss: Optional[bool] = None, + ) -> Union[BridgeTowerContrastiveOutput, Tuple[torch.FloatTensor]]: + r""" + return_loss (`bool`, *optional*): + Whether or not to return the contrastive loss. + Returns: + + Examples: + + ```python + >>> from transformers import BridgeTowerProcessor, BridgeTowerForContrastiveLearning + >>> import requests + >>> from PIL import Image + >>> import torch + + >>> image_urls = [ + ... "https://farm4.staticflickr.com/3395/3428278415_81c3e27f15_z.jpg", + ... "http://images.cocodataset.org/val2017/000000039769.jpg", + ... ] + >>> texts = ["two dogs in a car", "two cats sleeping on a couch"] + >>> images = [Image.open(requests.get(url, stream=True).raw) for url in image_urls] + + >>> processor = BridgeTowerProcessor.from_pretrained("BridgeTower/bridgetower-large-itm-mlm-itc") + >>> model = BridgeTowerForContrastiveLearning.from_pretrained("BridgeTower/bridgetower-large-itm-mlm-itc") + + >>> inputs = processor(images, texts, padding=True, return_tensors="pt") + >>> loss = model(**inputs, return_loss=True).loss + + >>> inputs = processor(images, texts[::-1], padding=True, return_tensors="pt") + >>> loss_swapped = model(**inputs, return_loss=True).loss + + >>> print("Loss", round(loss.item(), 4)) + Loss 0.0019 + + >>> print("Loss with swapped images", round(loss_swapped.item(), 4)) + Loss with swapped images 2.126 + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + outputs = self.bridgetower( + input_ids, + attention_mask=attention_mask, + token_type_ids=token_type_ids, + pixel_values=pixel_values, + pixel_mask=pixel_mask, + head_mask=head_mask, + inputs_embeds=inputs_embeds, + image_embeds=image_embeds, + output_attentions=output_attentions, + output_hidden_states=True, + return_dict=return_dict, + ) + + pooler_output = outputs.pooler_output if return_dict else outputs[2] + hidden_states_txt, hidden_states_img, hidden_states_cross_modal = ( + outputs.hidden_states if return_dict else outputs[3] + ) + + text_embeds = hidden_states_txt[-1] + image_embeds = hidden_states_img[-1] + + image_embeds_with_ln = self.bridgetower.vision_model.visual.forward_post(image_embeds) + image_token_type_embeddings = self.bridgetower.token_type_embeddings( + torch.full((1,), 1, dtype=torch.long, device=self.bridgetower.token_type_embeddings.weight.device) + ).expand_as(image_embeds_with_ln) + + image_embeds = self.bridgetower.cross_modal_image_transform(image_embeds_with_ln) + image_token_type_embeddings + + # normalized features + text_embeds = nn.functional.normalize(self.itc_text_head(text_embeds[:, 0, :]), dim=-1, p=2) + image_embeds = nn.functional.normalize(self.itc_image_head(image_embeds[:, 0, :]), dim=-1, p=2).to( + device=text_embeds.device + ) + cross_embeds = nn.functional.normalize(self.itc_cross_modal_head(pooler_output), dim=-1, p=2).to( + device=text_embeds.device + ) + + logits = torch.stack([text_embeds, image_embeds, cross_embeds], dim=-2) + + logit_scale = self.logit_scale.exp().to(device=text_embeds.device) + logits_text_to_image = torch.matmul(text_embeds, image_embeds.t()) * logit_scale + logits_text_to_cross = torch.matmul(text_embeds, cross_embeds.t()) * logit_scale + logits_image_to_cross = torch.matmul(image_embeds, cross_embeds.t()) * logit_scale + + itc_loss = None + + if return_loss: + labels = torch.arange(len(logits), device=logits.device) + text_to_image_loss = nn.functional.cross_entropy(logits_text_to_image, labels) + text_to_cross_loss = nn.functional.cross_entropy(logits_text_to_cross, labels) + image_to_cross_loss = nn.functional.cross_entropy(logits_image_to_cross, labels) + itc_loss = (text_to_image_loss + text_to_cross_loss + image_to_cross_loss) / 3.0 + + if not return_dict: + output = (logits, text_embeds, image_embeds, cross_embeds) + outputs[3:] + return ((itc_loss,) + output) if itc_loss is not None else output + + return BridgeTowerContrastiveOutput( + loss=itc_loss, + logits=logits, + text_embeds=text_embeds, + image_embeds=image_embeds, + cross_embeds=cross_embeds, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/bridgetower/processing_bridgetower.py b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/processing_bridgetower.py new file mode 100644 index 0000000000000000000000000000000000000000..7718c3bf833feca2c925c2d7920defb22a377953 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/bridgetower/processing_bridgetower.py @@ -0,0 +1,119 @@ +# coding=utf-8 +# Copyright 2023 The Intel Labs Team Authors, The Microsoft Research Team Authors and HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" +Processor class for BridgeTower. +""" + +from typing import List, Optional, Union + +from ...processing_utils import ProcessorMixin +from ...tokenization_utils_base import BatchEncoding, PaddingStrategy, PreTokenizedInput, TextInput, TruncationStrategy +from ...utils import TensorType + + +class BridgeTowerProcessor(ProcessorMixin): + r""" + Constructs a BridgeTower processor which wraps a Roberta tokenizer and BridgeTower image processor into a single + processor. + + [`BridgeTowerProcessor`] offers all the functionalities of [`BridgeTowerImageProcessor`] and + [`RobertaTokenizerFast`]. See the docstring of [`~BridgeTowerProcessor.__call__`] and + [`~BridgeTowerProcessor.decode`] for more information. + + Args: + image_processor (`BridgeTowerImageProcessor`): + An instance of [`BridgeTowerImageProcessor`]. The image processor is a required input. + tokenizer (`RobertaTokenizerFast`): + An instance of ['RobertaTokenizerFast`]. The tokenizer is a required input. + """ + + attributes = ["image_processor", "tokenizer"] + image_processor_class = "BridgeTowerImageProcessor" + tokenizer_class = ("RobertaTokenizer", "RobertaTokenizerFast") + + def __init__(self, image_processor, tokenizer): + super().__init__(image_processor, tokenizer) + + def __call__( + self, + images, + text: Union[TextInput, PreTokenizedInput, List[TextInput], List[PreTokenizedInput]] = None, + add_special_tokens: bool = True, + padding: Union[bool, str, PaddingStrategy] = False, + truncation: Union[bool, str, TruncationStrategy] = None, + max_length: Optional[int] = None, + stride: int = 0, + pad_to_multiple_of: Optional[int] = None, + return_token_type_ids: Optional[bool] = None, + return_attention_mask: Optional[bool] = None, + return_overflowing_tokens: bool = False, + return_special_tokens_mask: bool = False, + return_offsets_mapping: bool = False, + return_length: bool = False, + verbose: bool = True, + return_tensors: Optional[Union[str, TensorType]] = None, + **kwargs, + ) -> BatchEncoding: + """ + This method uses [`BridgeTowerImageProcessor.__call__`] method to prepare image(s) for the model, and + [`RobertaTokenizerFast.__call__`] to prepare text for the model. + + Please refer to the docstring of the above two methods for more information. + """ + encoding = self.tokenizer( + text=text, + add_special_tokens=add_special_tokens, + padding=padding, + truncation=truncation, + max_length=max_length, + stride=stride, + pad_to_multiple_of=pad_to_multiple_of, + return_token_type_ids=return_token_type_ids, + return_attention_mask=return_attention_mask, + return_overflowing_tokens=return_overflowing_tokens, + return_special_tokens_mask=return_special_tokens_mask, + return_offsets_mapping=return_offsets_mapping, + return_length=return_length, + verbose=verbose, + return_tensors=return_tensors, + **kwargs, + ) + # add pixel_values + pixel_mask + encoding_image_processor = self.image_processor( + images, return_tensors=return_tensors, do_normalize=True, do_center_crop=True, **kwargs + ) + encoding.update(encoding_image_processor) + + return encoding + + def batch_decode(self, *args, **kwargs): + """ + This method forwards all its arguments to RobertaTokenizerFast's [`~PreTrainedTokenizer.batch_decode`]. Please + refer to the docstring of this method for more information. + """ + return self.tokenizer.batch_decode(*args, **kwargs) + + def decode(self, *args, **kwargs): + """ + This method forwards all its arguments to RobertaTokenizerFast's [`~PreTrainedTokenizer.decode`]. Please refer + to the docstring of this method for more information. + """ + return self.tokenizer.decode(*args, **kwargs) + + @property + def model_input_names(self): + tokenizer_input_names = self.tokenizer.model_input_names + image_processor_input_names = self.image_processor.model_input_names + return list(dict.fromkeys(tokenizer_input_names + image_processor_input_names)) diff --git a/venv/lib/python3.10/site-packages/transformers/models/conditional_detr/__init__.py b/venv/lib/python3.10/site-packages/transformers/models/conditional_detr/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..565323321160ff80e3abbd120dd591dcc43d0f6c --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/conditional_detr/__init__.py @@ -0,0 +1,85 @@ +# Copyright 2022 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import TYPE_CHECKING + +from ...utils import OptionalDependencyNotAvailable, _LazyModule, is_torch_available, is_vision_available + + +_import_structure = { + "configuration_conditional_detr": [ + "CONDITIONAL_DETR_PRETRAINED_CONFIG_ARCHIVE_MAP", + "ConditionalDetrConfig", + "ConditionalDetrOnnxConfig", + ] +} + +try: + if not is_vision_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["feature_extraction_conditional_detr"] = ["ConditionalDetrFeatureExtractor"] + _import_structure["image_processing_conditional_detr"] = ["ConditionalDetrImageProcessor"] + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_conditional_detr"] = [ + "CONDITIONAL_DETR_PRETRAINED_MODEL_ARCHIVE_LIST", + "ConditionalDetrForObjectDetection", + "ConditionalDetrForSegmentation", + "ConditionalDetrModel", + "ConditionalDetrPreTrainedModel", + ] + + +if TYPE_CHECKING: + from .configuration_conditional_detr import ( + CONDITIONAL_DETR_PRETRAINED_CONFIG_ARCHIVE_MAP, + ConditionalDetrConfig, + ConditionalDetrOnnxConfig, + ) + + try: + if not is_vision_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .feature_extraction_conditional_detr import ConditionalDetrFeatureExtractor + from .image_processing_conditional_detr import ConditionalDetrImageProcessor + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_conditional_detr import ( + CONDITIONAL_DETR_PRETRAINED_MODEL_ARCHIVE_LIST, + ConditionalDetrForObjectDetection, + ConditionalDetrForSegmentation, + ConditionalDetrModel, + ConditionalDetrPreTrainedModel, + ) + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/venv/lib/python3.10/site-packages/transformers/models/conditional_detr/modeling_conditional_detr.py b/venv/lib/python3.10/site-packages/transformers/models/conditional_detr/modeling_conditional_detr.py new file mode 100644 index 0000000000000000000000000000000000000000..d8ff371fad77d1d148179054a0eea2d811fea56c --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/conditional_detr/modeling_conditional_detr.py @@ -0,0 +1,2759 @@ +# coding=utf-8 +# Copyright 2022 Microsoft Research Asia and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" PyTorch Conditional DETR model.""" + + +import math +from dataclasses import dataclass +from typing import Dict, List, Optional, Tuple, Union + +import torch +from torch import Tensor, nn + +from ...activations import ACT2FN +from ...modeling_attn_mask_utils import _prepare_4d_attention_mask +from ...modeling_outputs import BaseModelOutput, BaseModelOutputWithCrossAttentions, Seq2SeqModelOutput +from ...modeling_utils import PreTrainedModel +from ...utils import ( + ModelOutput, + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_accelerate_available, + is_scipy_available, + is_timm_available, + is_vision_available, + logging, + replace_return_docstrings, + requires_backends, +) +from ...utils.backbone_utils import load_backbone +from .configuration_conditional_detr import ConditionalDetrConfig + + +if is_accelerate_available(): + from accelerate import PartialState + from accelerate.utils import reduce + +if is_scipy_available(): + from scipy.optimize import linear_sum_assignment + +if is_timm_available(): + from timm import create_model + +if is_vision_available(): + from ...image_transforms import center_to_corners_format + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "ConditionalDetrConfig" +_CHECKPOINT_FOR_DOC = "microsoft/conditional-detr-resnet-50" + + +from ..deprecated._archive_maps import CONDITIONAL_DETR_PRETRAINED_MODEL_ARCHIVE_LIST # noqa: F401, E402 + + +@dataclass +class ConditionalDetrDecoderOutput(BaseModelOutputWithCrossAttentions): + """ + Base class for outputs of the Conditional DETR decoder. This class adds one attribute to + BaseModelOutputWithCrossAttentions, namely an optional stack of intermediate decoder activations, i.e. the output + of each decoder layer, each of them gone through a layernorm. This is useful when training the model with auxiliary + decoding losses. + + Args: + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the model at the output of each layer + plus the initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights after the attention softmax, used to compute the weighted average in + the self-attention heads. + cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` and `config.add_cross_attention=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax, + used to compute the weighted average in the cross-attention heads. + intermediate_hidden_states (`torch.FloatTensor` of shape `(config.decoder_layers, batch_size, num_queries, hidden_size)`, *optional*, returned when `config.auxiliary_loss=True`): + Intermediate decoder activations, i.e. the output of each decoder layer, each of them gone through a + layernorm. + """ + + intermediate_hidden_states: Optional[torch.FloatTensor] = None + reference_points: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +class ConditionalDetrModelOutput(Seq2SeqModelOutput): + """ + Base class for outputs of the Conditional DETR encoder-decoder model. This class adds one attribute to + Seq2SeqModelOutput, namely an optional stack of intermediate decoder activations, i.e. the output of each decoder + layer, each of them gone through a layernorm. This is useful when training the model with auxiliary decoding + losses. + + Args: + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the decoder of the model. + decoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the decoder at the output of each + layer plus the initial embedding outputs. + decoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder, after the attention softmax, used to compute the + weighted average in the self-attention heads. + cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax, + used to compute the weighted average in the cross-attention heads. + encoder_last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder of the model. + encoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the encoder at the output of each + layer plus the initial embedding outputs. + encoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the encoder, after the attention softmax, used to compute the + weighted average in the self-attention heads. + intermediate_hidden_states (`torch.FloatTensor` of shape `(config.decoder_layers, batch_size, sequence_length, hidden_size)`, *optional*, returned when `config.auxiliary_loss=True`): + Intermediate decoder activations, i.e. the output of each decoder layer, each of them gone through a + layernorm. + """ + + intermediate_hidden_states: Optional[torch.FloatTensor] = None + reference_points: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +# Copied from transformers.models.detr.modeling_detr.DetrObjectDetectionOutput with Detr->ConditionalDetr +class ConditionalDetrObjectDetectionOutput(ModelOutput): + """ + Output type of [`ConditionalDetrForObjectDetection`]. + + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` are provided)): + Total loss as a linear combination of a negative log-likehood (cross-entropy) for class prediction and a + bounding box loss. The latter is defined as a linear combination of the L1 loss and the generalized + scale-invariant IoU loss. + loss_dict (`Dict`, *optional*): + A dictionary containing the individual losses. Useful for logging. + logits (`torch.FloatTensor` of shape `(batch_size, num_queries, num_classes + 1)`): + Classification logits (including no-object) for all queries. + pred_boxes (`torch.FloatTensor` of shape `(batch_size, num_queries, 4)`): + Normalized boxes coordinates for all queries, represented as (center_x, center_y, width, height). These + values are normalized in [0, 1], relative to the size of each individual image in the batch (disregarding + possible padding). You can use [`~ConditionalDetrImageProcessor.post_process_object_detection`] to retrieve the + unnormalized bounding boxes. + auxiliary_outputs (`list[Dict]`, *optional*): + Optional, only returned when auxilary losses are activated (i.e. `config.auxiliary_loss` is set to `True`) + and labels are provided. It is a list of dictionaries containing the two above keys (`logits` and + `pred_boxes`) for each decoder layer. + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the decoder of the model. + decoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the decoder at the output of each + layer plus the initial embedding outputs. + decoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder, after the attention softmax, used to compute the + weighted average in the self-attention heads. + cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax, + used to compute the weighted average in the cross-attention heads. + encoder_last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder of the model. + encoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the encoder at the output of each + layer plus the initial embedding outputs. + encoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the encoder, after the attention softmax, used to compute the + weighted average in the self-attention heads. + """ + + loss: Optional[torch.FloatTensor] = None + loss_dict: Optional[Dict] = None + logits: torch.FloatTensor = None + pred_boxes: torch.FloatTensor = None + auxiliary_outputs: Optional[List[Dict]] = None + last_hidden_state: Optional[torch.FloatTensor] = None + decoder_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + decoder_attentions: Optional[Tuple[torch.FloatTensor]] = None + cross_attentions: Optional[Tuple[torch.FloatTensor]] = None + encoder_last_hidden_state: Optional[torch.FloatTensor] = None + encoder_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + encoder_attentions: Optional[Tuple[torch.FloatTensor]] = None + + +@dataclass +# Copied from transformers.models.detr.modeling_detr.DetrSegmentationOutput with Detr->ConditionalDetr +class ConditionalDetrSegmentationOutput(ModelOutput): + """ + Output type of [`ConditionalDetrForSegmentation`]. + + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` are provided)): + Total loss as a linear combination of a negative log-likehood (cross-entropy) for class prediction and a + bounding box loss. The latter is defined as a linear combination of the L1 loss and the generalized + scale-invariant IoU loss. + loss_dict (`Dict`, *optional*): + A dictionary containing the individual losses. Useful for logging. + logits (`torch.FloatTensor` of shape `(batch_size, num_queries, num_classes + 1)`): + Classification logits (including no-object) for all queries. + pred_boxes (`torch.FloatTensor` of shape `(batch_size, num_queries, 4)`): + Normalized boxes coordinates for all queries, represented as (center_x, center_y, width, height). These + values are normalized in [0, 1], relative to the size of each individual image in the batch (disregarding + possible padding). You can use [`~ConditionalDetrImageProcessor.post_process_object_detection`] to retrieve the + unnormalized bounding boxes. + pred_masks (`torch.FloatTensor` of shape `(batch_size, num_queries, height/4, width/4)`): + Segmentation masks logits for all queries. See also + [`~ConditionalDetrImageProcessor.post_process_semantic_segmentation`] or + [`~ConditionalDetrImageProcessor.post_process_instance_segmentation`] + [`~ConditionalDetrImageProcessor.post_process_panoptic_segmentation`] to evaluate semantic, instance and panoptic + segmentation masks respectively. + auxiliary_outputs (`list[Dict]`, *optional*): + Optional, only returned when auxiliary losses are activated (i.e. `config.auxiliary_loss` is set to `True`) + and labels are provided. It is a list of dictionaries containing the two above keys (`logits` and + `pred_boxes`) for each decoder layer. + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the decoder of the model. + decoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the decoder at the output of each + layer plus the initial embedding outputs. + decoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder, after the attention softmax, used to compute the + weighted average in the self-attention heads. + cross_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the decoder's cross-attention layer, after the attention softmax, + used to compute the weighted average in the cross-attention heads. + encoder_last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder of the model. + encoder_hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings + one for the output of each layer) of + shape `(batch_size, sequence_length, hidden_size)`. Hidden-states of the encoder at the output of each + layer plus the initial embedding outputs. + encoder_attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. Attentions weights of the encoder, after the attention softmax, used to compute the + weighted average in the self-attention heads. + """ + + loss: Optional[torch.FloatTensor] = None + loss_dict: Optional[Dict] = None + logits: torch.FloatTensor = None + pred_boxes: torch.FloatTensor = None + pred_masks: torch.FloatTensor = None + auxiliary_outputs: Optional[List[Dict]] = None + last_hidden_state: Optional[torch.FloatTensor] = None + decoder_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + decoder_attentions: Optional[Tuple[torch.FloatTensor]] = None + cross_attentions: Optional[Tuple[torch.FloatTensor]] = None + encoder_last_hidden_state: Optional[torch.FloatTensor] = None + encoder_hidden_states: Optional[Tuple[torch.FloatTensor]] = None + encoder_attentions: Optional[Tuple[torch.FloatTensor]] = None + + +# Copied from transformers.models.detr.modeling_detr.DetrFrozenBatchNorm2d with Detr->ConditionalDetr +class ConditionalDetrFrozenBatchNorm2d(nn.Module): + """ + BatchNorm2d where the batch statistics and the affine parameters are fixed. + + Copy-paste from torchvision.misc.ops with added eps before rqsrt, without which any other models than + torchvision.models.resnet[18,34,50,101] produce nans. + """ + + def __init__(self, n): + super().__init__() + self.register_buffer("weight", torch.ones(n)) + self.register_buffer("bias", torch.zeros(n)) + self.register_buffer("running_mean", torch.zeros(n)) + self.register_buffer("running_var", torch.ones(n)) + + def _load_from_state_dict( + self, state_dict, prefix, local_metadata, strict, missing_keys, unexpected_keys, error_msgs + ): + num_batches_tracked_key = prefix + "num_batches_tracked" + if num_batches_tracked_key in state_dict: + del state_dict[num_batches_tracked_key] + + super()._load_from_state_dict( + state_dict, prefix, local_metadata, strict, missing_keys, unexpected_keys, error_msgs + ) + + def forward(self, x): + # move reshapes to the beginning + # to make it user-friendly + weight = self.weight.reshape(1, -1, 1, 1) + bias = self.bias.reshape(1, -1, 1, 1) + running_var = self.running_var.reshape(1, -1, 1, 1) + running_mean = self.running_mean.reshape(1, -1, 1, 1) + epsilon = 1e-5 + scale = weight * (running_var + epsilon).rsqrt() + bias = bias - running_mean * scale + return x * scale + bias + + +# Copied from transformers.models.detr.modeling_detr.replace_batch_norm with Detr->ConditionalDetr +def replace_batch_norm(model): + r""" + Recursively replace all `torch.nn.BatchNorm2d` with `ConditionalDetrFrozenBatchNorm2d`. + + Args: + model (torch.nn.Module): + input model + """ + for name, module in model.named_children(): + if isinstance(module, nn.BatchNorm2d): + new_module = ConditionalDetrFrozenBatchNorm2d(module.num_features) + + if not module.weight.device == torch.device("meta"): + new_module.weight.data.copy_(module.weight) + new_module.bias.data.copy_(module.bias) + new_module.running_mean.data.copy_(module.running_mean) + new_module.running_var.data.copy_(module.running_var) + + model._modules[name] = new_module + + if len(list(module.children())) > 0: + replace_batch_norm(module) + + +# Copied from transformers.models.detr.modeling_detr.DetrConvEncoder +class ConditionalDetrConvEncoder(nn.Module): + """ + Convolutional backbone, using either the AutoBackbone API or one from the timm library. + + nn.BatchNorm2d layers are replaced by DetrFrozenBatchNorm2d as defined above. + + """ + + def __init__(self, config): + super().__init__() + + self.config = config + + if config.use_timm_backbone: + requires_backends(self, ["timm"]) + kwargs = {} + if config.dilation: + kwargs["output_stride"] = 16 + backbone = create_model( + config.backbone, + pretrained=config.use_pretrained_backbone, + features_only=True, + out_indices=(1, 2, 3, 4), + in_chans=config.num_channels, + **kwargs, + ) + else: + backbone = load_backbone(config) + + # replace batch norm by frozen batch norm + with torch.no_grad(): + replace_batch_norm(backbone) + self.model = backbone + self.intermediate_channel_sizes = ( + self.model.feature_info.channels() if config.use_timm_backbone else self.model.channels + ) + + backbone_model_type = config.backbone if config.use_timm_backbone else config.backbone_config.model_type + if "resnet" in backbone_model_type: + for name, parameter in self.model.named_parameters(): + if config.use_timm_backbone: + if "layer2" not in name and "layer3" not in name and "layer4" not in name: + parameter.requires_grad_(False) + else: + if "stage.1" not in name and "stage.2" not in name and "stage.3" not in name: + parameter.requires_grad_(False) + + def forward(self, pixel_values: torch.Tensor, pixel_mask: torch.Tensor): + # send pixel_values through the model to get list of feature maps + features = self.model(pixel_values) if self.config.use_timm_backbone else self.model(pixel_values).feature_maps + + out = [] + for feature_map in features: + # downsample pixel_mask to match shape of corresponding feature_map + mask = nn.functional.interpolate(pixel_mask[None].float(), size=feature_map.shape[-2:]).to(torch.bool)[0] + out.append((feature_map, mask)) + return out + + +# Copied from transformers.models.detr.modeling_detr.DetrConvModel with Detr->ConditionalDetr +class ConditionalDetrConvModel(nn.Module): + """ + This module adds 2D position embeddings to all intermediate feature maps of the convolutional encoder. + """ + + def __init__(self, conv_encoder, position_embedding): + super().__init__() + self.conv_encoder = conv_encoder + self.position_embedding = position_embedding + + def forward(self, pixel_values, pixel_mask): + # send pixel_values and pixel_mask through backbone to get list of (feature_map, pixel_mask) tuples + out = self.conv_encoder(pixel_values, pixel_mask) + pos = [] + for feature_map, mask in out: + # position encoding + pos.append(self.position_embedding(feature_map, mask).to(feature_map.dtype)) + + return out, pos + + +class ConditionalDetrSinePositionEmbedding(nn.Module): + """ + This is a more standard version of the position embedding, very similar to the one used by the Attention is all you + need paper, generalized to work on images. + """ + + def __init__(self, embedding_dim=64, temperature=10000, normalize=False, scale=None): + super().__init__() + self.embedding_dim = embedding_dim + self.temperature = temperature + self.normalize = normalize + if scale is not None and normalize is False: + raise ValueError("normalize should be True if scale is passed") + if scale is None: + scale = 2 * math.pi + self.scale = scale + + def forward(self, pixel_values, pixel_mask): + if pixel_mask is None: + raise ValueError("No pixel mask provided") + y_embed = pixel_mask.cumsum(1, dtype=torch.float32) + x_embed = pixel_mask.cumsum(2, dtype=torch.float32) + if self.normalize: + y_embed = y_embed / (y_embed[:, -1:, :] + 1e-6) * self.scale + x_embed = x_embed / (x_embed[:, :, -1:] + 1e-6) * self.scale + + dim_t = torch.arange(self.embedding_dim, dtype=torch.int64, device=pixel_values.device).float() + dim_t = self.temperature ** (2 * torch.div(dim_t, 2, rounding_mode="floor") / self.embedding_dim) + + pos_x = x_embed[:, :, :, None] / dim_t + pos_y = y_embed[:, :, :, None] / dim_t + pos_x = torch.stack((pos_x[:, :, :, 0::2].sin(), pos_x[:, :, :, 1::2].cos()), dim=4).flatten(3) + pos_y = torch.stack((pos_y[:, :, :, 0::2].sin(), pos_y[:, :, :, 1::2].cos()), dim=4).flatten(3) + pos = torch.cat((pos_y, pos_x), dim=3).permute(0, 3, 1, 2) + return pos + + +# Copied from transformers.models.detr.modeling_detr.DetrLearnedPositionEmbedding with Detr->ConditionalDetr +class ConditionalDetrLearnedPositionEmbedding(nn.Module): + """ + This module learns positional embeddings up to a fixed maximum size. + """ + + def __init__(self, embedding_dim=256): + super().__init__() + self.row_embeddings = nn.Embedding(50, embedding_dim) + self.column_embeddings = nn.Embedding(50, embedding_dim) + + def forward(self, pixel_values, pixel_mask=None): + height, width = pixel_values.shape[-2:] + width_values = torch.arange(width, device=pixel_values.device) + height_values = torch.arange(height, device=pixel_values.device) + x_emb = self.column_embeddings(width_values) + y_emb = self.row_embeddings(height_values) + pos = torch.cat([x_emb.unsqueeze(0).repeat(height, 1, 1), y_emb.unsqueeze(1).repeat(1, width, 1)], dim=-1) + pos = pos.permute(2, 0, 1) + pos = pos.unsqueeze(0) + pos = pos.repeat(pixel_values.shape[0], 1, 1, 1) + return pos + + +# Copied from transformers.models.detr.modeling_detr.build_position_encoding with Detr->ConditionalDetr +def build_position_encoding(config): + n_steps = config.d_model // 2 + if config.position_embedding_type == "sine": + # TODO find a better way of exposing other arguments + position_embedding = ConditionalDetrSinePositionEmbedding(n_steps, normalize=True) + elif config.position_embedding_type == "learned": + position_embedding = ConditionalDetrLearnedPositionEmbedding(n_steps) + else: + raise ValueError(f"Not supported {config.position_embedding_type}") + + return position_embedding + + +# function to generate sine positional embedding for 2d coordinates +def gen_sine_position_embeddings(pos_tensor, d_model): + scale = 2 * math.pi + dim = d_model // 2 + dim_t = torch.arange(dim, dtype=torch.float32, device=pos_tensor.device) + dim_t = 10000 ** (2 * torch.div(dim_t, 2, rounding_mode="floor") / dim) + x_embed = pos_tensor[:, :, 0] * scale + y_embed = pos_tensor[:, :, 1] * scale + pos_x = x_embed[:, :, None] / dim_t + pos_y = y_embed[:, :, None] / dim_t + pos_x = torch.stack((pos_x[:, :, 0::2].sin(), pos_x[:, :, 1::2].cos()), dim=3).flatten(2) + pos_y = torch.stack((pos_y[:, :, 0::2].sin(), pos_y[:, :, 1::2].cos()), dim=3).flatten(2) + pos = torch.cat((pos_y, pos_x), dim=2) + return pos + + +def inverse_sigmoid(x, eps=1e-5): + x = x.clamp(min=0, max=1) + x1 = x.clamp(min=eps) + x2 = (1 - x).clamp(min=eps) + return torch.log(x1 / x2) + + +# Copied from transformers.models.detr.modeling_detr.DetrAttention +class DetrAttention(nn.Module): + """ + Multi-headed attention from 'Attention Is All You Need' paper. + + Here, we add position embeddings to the queries and keys (as explained in the DETR paper). + """ + + def __init__( + self, + embed_dim: int, + num_heads: int, + dropout: float = 0.0, + bias: bool = True, + ): + super().__init__() + self.embed_dim = embed_dim + self.num_heads = num_heads + self.dropout = dropout + self.head_dim = embed_dim // num_heads + if self.head_dim * num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {num_heads})." + ) + self.scaling = self.head_dim**-0.5 + + self.k_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.v_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.q_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + self.out_proj = nn.Linear(embed_dim, embed_dim, bias=bias) + + def _shape(self, tensor: torch.Tensor, seq_len: int, batch_size: int): + return tensor.view(batch_size, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def with_pos_embed(self, tensor: torch.Tensor, object_queries: Optional[Tensor], **kwargs): + position_embeddings = kwargs.pop("position_embeddings", None) + + if kwargs: + raise ValueError(f"Unexpected arguments {kwargs.keys()}") + + if position_embeddings is not None and object_queries is not None: + raise ValueError( + "Cannot specify both position_embeddings and object_queries. Please use just object_queries" + ) + + if position_embeddings is not None: + logger.warning_once( + "position_embeddings has been deprecated and will be removed in v4.34. Please use object_queries instead" + ) + object_queries = position_embeddings + + return tensor if object_queries is None else tensor + object_queries + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + object_queries: Optional[torch.Tensor] = None, + key_value_states: Optional[torch.Tensor] = None, + spatial_position_embeddings: Optional[torch.Tensor] = None, + output_attentions: bool = False, + **kwargs, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + position_embeddings = kwargs.pop("position_ebmeddings", None) + key_value_position_embeddings = kwargs.pop("key_value_position_embeddings", None) + + if kwargs: + raise ValueError(f"Unexpected arguments {kwargs.keys()}") + + if position_embeddings is not None and object_queries is not None: + raise ValueError( + "Cannot specify both position_embeddings and object_queries. Please use just object_queries" + ) + + if key_value_position_embeddings is not None and spatial_position_embeddings is not None: + raise ValueError( + "Cannot specify both key_value_position_embeddings and spatial_position_embeddings. Please use just spatial_position_embeddings" + ) + + if position_embeddings is not None: + logger.warning_once( + "position_embeddings has been deprecated and will be removed in v4.34. Please use object_queries instead" + ) + object_queries = position_embeddings + + if key_value_position_embeddings is not None: + logger.warning_once( + "key_value_position_embeddings has been deprecated and will be removed in v4.34. Please use spatial_position_embeddings instead" + ) + spatial_position_embeddings = key_value_position_embeddings + + # if key_value_states are provided this layer is used as a cross-attention layer + # for the decoder + is_cross_attention = key_value_states is not None + batch_size, target_len, embed_dim = hidden_states.size() + + # add position embeddings to the hidden states before projecting to queries and keys + if object_queries is not None: + hidden_states_original = hidden_states + hidden_states = self.with_pos_embed(hidden_states, object_queries) + + # add key-value position embeddings to the key value states + if spatial_position_embeddings is not None: + key_value_states_original = key_value_states + key_value_states = self.with_pos_embed(key_value_states, spatial_position_embeddings) + + # get query proj + query_states = self.q_proj(hidden_states) * self.scaling + # get key, value proj + if is_cross_attention: + # cross_attentions + key_states = self._shape(self.k_proj(key_value_states), -1, batch_size) + value_states = self._shape(self.v_proj(key_value_states_original), -1, batch_size) + else: + # self_attention + key_states = self._shape(self.k_proj(hidden_states), -1, batch_size) + value_states = self._shape(self.v_proj(hidden_states_original), -1, batch_size) + + proj_shape = (batch_size * self.num_heads, -1, self.head_dim) + query_states = self._shape(query_states, target_len, batch_size).view(*proj_shape) + key_states = key_states.view(*proj_shape) + value_states = value_states.view(*proj_shape) + + source_len = key_states.size(1) + + attn_weights = torch.bmm(query_states, key_states.transpose(1, 2)) + + if attn_weights.size() != (batch_size * self.num_heads, target_len, source_len): + raise ValueError( + f"Attention weights should be of size {(batch_size * self.num_heads, target_len, source_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (batch_size, 1, target_len, source_len): + raise ValueError( + f"Attention mask should be of size {(batch_size, 1, target_len, source_len)}, but is" + f" {attention_mask.size()}" + ) + attn_weights = attn_weights.view(batch_size, self.num_heads, target_len, source_len) + attention_mask + attn_weights = attn_weights.view(batch_size * self.num_heads, target_len, source_len) + + attn_weights = nn.functional.softmax(attn_weights, dim=-1) + + if output_attentions: + # this operation is a bit awkward, but it's required to + # make sure that attn_weights keeps its gradient. + # In order to do so, attn_weights have to reshaped + # twice and have to be reused in the following + attn_weights_reshaped = attn_weights.view(batch_size, self.num_heads, target_len, source_len) + attn_weights = attn_weights_reshaped.view(batch_size * self.num_heads, target_len, source_len) + else: + attn_weights_reshaped = None + + attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + + attn_output = torch.bmm(attn_probs, value_states) + + if attn_output.size() != (batch_size * self.num_heads, target_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(batch_size, self.num_heads, target_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.view(batch_size, self.num_heads, target_len, self.head_dim) + attn_output = attn_output.transpose(1, 2) + attn_output = attn_output.reshape(batch_size, target_len, embed_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights_reshaped + + +class ConditionalDetrAttention(nn.Module): + """ + Cross-Attention used in Conditional DETR 'Conditional DETR for Fast Training Convergence' paper. + + The key q_proj, k_proj, v_proj are defined outside the attention. This attention allows the dim of q, k to be + different to v. + """ + + def __init__( + self, + embed_dim: int, + out_dim: int, + num_heads: int, + dropout: float = 0.0, + bias: bool = True, + ): + super().__init__() + self.embed_dim = embed_dim + self.out_dim = out_dim + self.num_heads = num_heads + self.dropout = dropout + self.head_dim = embed_dim // num_heads + if self.head_dim * num_heads != self.embed_dim: + raise ValueError( + f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim} and `num_heads`:" + f" {num_heads})." + ) + # head dimension of values + self.v_head_dim = out_dim // num_heads + if self.v_head_dim * num_heads != self.out_dim: + raise ValueError( + f"out_dim must be divisible by num_heads (got `out_dim`: {self.out_dim} and `num_heads`: {num_heads})." + ) + self.scaling = self.head_dim**-0.5 + + self.out_proj = nn.Linear(out_dim, out_dim, bias=bias) + + def _qk_shape(self, tensor: torch.Tensor, seq_len: int, batch_size: int): + return tensor.view(batch_size, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous() + + def _v_shape(self, tensor: torch.Tensor, seq_len: int, batch_size: int): + return tensor.view(batch_size, seq_len, self.num_heads, self.v_head_dim).transpose(1, 2).contiguous() + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + key_states: Optional[torch.Tensor] = None, + value_states: Optional[torch.Tensor] = None, + output_attentions: bool = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + """Input shape: Batch x Time x Channel""" + + batch_size, target_len, _ = hidden_states.size() + + # get query proj + query_states = hidden_states * self.scaling + # get key, value proj + key_states = self._qk_shape(key_states, -1, batch_size) + value_states = self._v_shape(value_states, -1, batch_size) + + proj_shape = (batch_size * self.num_heads, -1, self.head_dim) + v_proj_shape = (batch_size * self.num_heads, -1, self.v_head_dim) + query_states = self._qk_shape(query_states, target_len, batch_size).view(*proj_shape) + key_states = key_states.view(*proj_shape) + value_states = value_states.view(*v_proj_shape) + + source_len = key_states.size(1) + + attn_weights = torch.bmm(query_states, key_states.transpose(1, 2)) + + if attn_weights.size() != (batch_size * self.num_heads, target_len, source_len): + raise ValueError( + f"Attention weights should be of size {(batch_size * self.num_heads, target_len, source_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (batch_size, 1, target_len, source_len): + raise ValueError( + f"Attention mask should be of size {(batch_size, 1, target_len, source_len)}, but is" + f" {attention_mask.size()}" + ) + attn_weights = attn_weights.view(batch_size, self.num_heads, target_len, source_len) + attention_mask + attn_weights = attn_weights.view(batch_size * self.num_heads, target_len, source_len) + + attn_weights = nn.functional.softmax(attn_weights, dim=-1) + + if output_attentions: + # this operation is a bit awkward, but it's required to + # make sure that attn_weights keeps its gradient. + # In order to do so, attn_weights have to reshaped + # twice and have to be reused in the following + attn_weights_reshaped = attn_weights.view(batch_size, self.num_heads, target_len, source_len) + attn_weights = attn_weights_reshaped.view(batch_size * self.num_heads, target_len, source_len) + else: + attn_weights_reshaped = None + + attn_probs = nn.functional.dropout(attn_weights, p=self.dropout, training=self.training) + + attn_output = torch.bmm(attn_probs, value_states) + + if attn_output.size() != (batch_size * self.num_heads, target_len, self.v_head_dim): + raise ValueError( + f"`attn_output` should be of size {(batch_size, self.num_heads, target_len, self.v_head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.view(batch_size, self.num_heads, target_len, self.v_head_dim) + attn_output = attn_output.transpose(1, 2) + attn_output = attn_output.reshape(batch_size, target_len, self.out_dim) + + attn_output = self.out_proj(attn_output) + + return attn_output, attn_weights_reshaped + + +# Copied from transformers.models.detr.modeling_detr.DetrEncoderLayer with DetrEncoderLayer->ConditionalDetrEncoderLayer,DetrConfig->ConditionalDetrConfig +class ConditionalDetrEncoderLayer(nn.Module): + def __init__(self, config: ConditionalDetrConfig): + super().__init__() + self.embed_dim = config.d_model + self.self_attn = DetrAttention( + embed_dim=self.embed_dim, + num_heads=config.encoder_attention_heads, + dropout=config.attention_dropout, + ) + self.self_attn_layer_norm = nn.LayerNorm(self.embed_dim) + self.dropout = config.dropout + self.activation_fn = ACT2FN[config.activation_function] + self.activation_dropout = config.activation_dropout + self.fc1 = nn.Linear(self.embed_dim, config.encoder_ffn_dim) + self.fc2 = nn.Linear(config.encoder_ffn_dim, self.embed_dim) + self.final_layer_norm = nn.LayerNorm(self.embed_dim) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: torch.Tensor, + object_queries: torch.Tensor = None, + output_attentions: bool = False, + **kwargs, + ): + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, target_len, source_len)` where padding elements are indicated by very large negative + values. + object_queries (`torch.FloatTensor`, *optional*): + Object queries (also called content embeddings), to be added to the hidden states. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + position_embeddings = kwargs.pop("position_embeddings", None) + + if kwargs: + raise ValueError(f"Unexpected arguments {kwargs.keys()}") + + if position_embeddings is not None and object_queries is not None: + raise ValueError( + "Cannot specify both position_embeddings and object_queries. Please use just object_queries" + ) + + if position_embeddings is not None: + logger.warning_once( + "position_embeddings has been deprecated and will be removed in v4.34. Please use object_queries instead" + ) + object_queries = position_embeddings + + residual = hidden_states + hidden_states, attn_weights = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + object_queries=object_queries, + output_attentions=output_attentions, + ) + + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.self_attn_layer_norm(hidden_states) + + residual = hidden_states + hidden_states = self.activation_fn(self.fc1(hidden_states)) + hidden_states = nn.functional.dropout(hidden_states, p=self.activation_dropout, training=self.training) + + hidden_states = self.fc2(hidden_states) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + + hidden_states = residual + hidden_states + hidden_states = self.final_layer_norm(hidden_states) + + if self.training: + if torch.isinf(hidden_states).any() or torch.isnan(hidden_states).any(): + clamp_value = torch.finfo(hidden_states.dtype).max - 1000 + hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value) + + outputs = (hidden_states,) + + if output_attentions: + outputs += (attn_weights,) + + return outputs + + +class ConditionalDetrDecoderLayer(nn.Module): + def __init__(self, config: ConditionalDetrConfig): + super().__init__() + self.embed_dim = config.d_model + + d_model = config.d_model + # Decoder Self-Attention projections + self.sa_qcontent_proj = nn.Linear(d_model, d_model) + self.sa_qpos_proj = nn.Linear(d_model, d_model) + self.sa_kcontent_proj = nn.Linear(d_model, d_model) + self.sa_kpos_proj = nn.Linear(d_model, d_model) + self.sa_v_proj = nn.Linear(d_model, d_model) + + self.self_attn = ConditionalDetrAttention( + embed_dim=self.embed_dim, + out_dim=self.embed_dim, + num_heads=config.decoder_attention_heads, + dropout=config.attention_dropout, + ) + self.dropout = config.dropout + self.activation_fn = ACT2FN[config.activation_function] + self.activation_dropout = config.activation_dropout + + self.self_attn_layer_norm = nn.LayerNorm(self.embed_dim) + + # Decoder Cross-Attention projections + self.ca_qcontent_proj = nn.Linear(d_model, d_model) + self.ca_qpos_proj = nn.Linear(d_model, d_model) + self.ca_kcontent_proj = nn.Linear(d_model, d_model) + self.ca_kpos_proj = nn.Linear(d_model, d_model) + self.ca_v_proj = nn.Linear(d_model, d_model) + self.ca_qpos_sine_proj = nn.Linear(d_model, d_model) + + self.encoder_attn = ConditionalDetrAttention( + self.embed_dim * 2, self.embed_dim, config.decoder_attention_heads, dropout=config.attention_dropout + ) + self.encoder_attn_layer_norm = nn.LayerNorm(self.embed_dim) + self.fc1 = nn.Linear(self.embed_dim, config.decoder_ffn_dim) + self.fc2 = nn.Linear(config.decoder_ffn_dim, self.embed_dim) + self.final_layer_norm = nn.LayerNorm(self.embed_dim) + self.nhead = config.decoder_attention_heads + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + object_queries: Optional[torch.Tensor] = None, + query_position_embeddings: Optional[torch.Tensor] = None, + query_sine_embed: Optional[torch.Tensor] = None, + encoder_hidden_states: Optional[torch.Tensor] = None, + encoder_attention_mask: Optional[torch.Tensor] = None, + output_attentions: Optional[bool] = False, + is_first: Optional[bool] = False, + **kwargs, + ): + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(seq_len, batch, embed_dim)` + attention_mask (`torch.FloatTensor`): attention mask of size + `(batch, 1, target_len, source_len)` where padding elements are indicated by very large negative + values. + object_queries (`torch.FloatTensor`, *optional*): + object_queries that are added to the queries and keys + in the cross-attention layer. + query_position_embeddings (`torch.FloatTensor`, *optional*): + object_queries that are added to the queries and keys + in the self-attention layer. + encoder_hidden_states (`torch.FloatTensor`): + cross attention input to the layer of shape `(seq_len, batch, embed_dim)` + encoder_attention_mask (`torch.FloatTensor`): encoder attention mask of size + `(batch, 1, target_len, source_len)` where padding elements are indicated by very large negative + values. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + """ + position_embeddings = kwargs.pop("position_embeddings", None) + + if kwargs: + raise ValueError(f"Unexpected arguments {kwargs.keys()}") + + if position_embeddings is not None and object_queries is not None: + raise ValueError( + "Cannot specify both position_embeddings and object_queries. Please use just object_queries" + ) + + if position_embeddings is not None: + logger.warning_once( + "position_embeddings has been deprecated and will be removed in v4.34. Please use object_queries instead" + ) + object_queries = position_embeddings + + residual = hidden_states + + # ========== Begin of Self-Attention ============= + # Apply projections here + # shape: num_queries x batch_size x 256 + q_content = self.sa_qcontent_proj( + hidden_states + ) # target is the input of the first decoder layer. zero by default. + q_pos = self.sa_qpos_proj(query_position_embeddings) + k_content = self.sa_kcontent_proj(hidden_states) + k_pos = self.sa_kpos_proj(query_position_embeddings) + v = self.sa_v_proj(hidden_states) + + _, num_queries, n_model = q_content.shape + + q = q_content + q_pos + k = k_content + k_pos + hidden_states, self_attn_weights = self.self_attn( + hidden_states=q, + attention_mask=attention_mask, + key_states=k, + value_states=v, + output_attentions=output_attentions, + ) + # ============ End of Self-Attention ============= + + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.self_attn_layer_norm(hidden_states) + + # ========== Begin of Cross-Attention ============= + # Apply projections here + # shape: num_queries x batch_size x 256 + q_content = self.ca_qcontent_proj(hidden_states) + k_content = self.ca_kcontent_proj(encoder_hidden_states) + v = self.ca_v_proj(encoder_hidden_states) + + batch_size, num_queries, n_model = q_content.shape + _, source_len, _ = k_content.shape + + k_pos = self.ca_kpos_proj(object_queries) + + # For the first decoder layer, we concatenate the positional embedding predicted from + # the object query (the positional embedding) into the original query (key) in DETR. + if is_first: + q_pos = self.ca_qpos_proj(query_position_embeddings) + q = q_content + q_pos + k = k_content + k_pos + else: + q = q_content + k = k_content + + q = q.view(batch_size, num_queries, self.nhead, n_model // self.nhead) + query_sine_embed = self.ca_qpos_sine_proj(query_sine_embed) + query_sine_embed = query_sine_embed.view(batch_size, num_queries, self.nhead, n_model // self.nhead) + q = torch.cat([q, query_sine_embed], dim=3).view(batch_size, num_queries, n_model * 2) + k = k.view(batch_size, source_len, self.nhead, n_model // self.nhead) + k_pos = k_pos.view(batch_size, source_len, self.nhead, n_model // self.nhead) + k = torch.cat([k, k_pos], dim=3).view(batch_size, source_len, n_model * 2) + + # Cross-Attention Block + cross_attn_weights = None + if encoder_hidden_states is not None: + residual = hidden_states + + hidden_states, cross_attn_weights = self.encoder_attn( + hidden_states=q, + attention_mask=encoder_attention_mask, + key_states=k, + value_states=v, + output_attentions=output_attentions, + ) + + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.encoder_attn_layer_norm(hidden_states) + + # ============ End of Cross-Attention ============= + + # Fully Connected + residual = hidden_states + hidden_states = self.activation_fn(self.fc1(hidden_states)) + hidden_states = nn.functional.dropout(hidden_states, p=self.activation_dropout, training=self.training) + hidden_states = self.fc2(hidden_states) + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + hidden_states = residual + hidden_states + hidden_states = self.final_layer_norm(hidden_states) + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights, cross_attn_weights) + + return outputs + + +# Copied from transformers.models.detr.modeling_detr.DetrClassificationHead with Detr->ConditionalDetr +class ConditionalDetrClassificationHead(nn.Module): + """Head for sentence-level classification tasks.""" + + def __init__(self, input_dim: int, inner_dim: int, num_classes: int, pooler_dropout: float): + super().__init__() + self.dense = nn.Linear(input_dim, inner_dim) + self.dropout = nn.Dropout(p=pooler_dropout) + self.out_proj = nn.Linear(inner_dim, num_classes) + + def forward(self, hidden_states: torch.Tensor): + hidden_states = self.dropout(hidden_states) + hidden_states = self.dense(hidden_states) + hidden_states = torch.tanh(hidden_states) + hidden_states = self.dropout(hidden_states) + hidden_states = self.out_proj(hidden_states) + return hidden_states + + +# Copied from transformers.models.detr.modeling_detr.DetrMLPPredictionHead with DetrMLPPredictionHead->MLP +class MLP(nn.Module): + """ + Very simple multi-layer perceptron (MLP, also called FFN), used to predict the normalized center coordinates, + height and width of a bounding box w.r.t. an image. + + Copied from https://github.com/facebookresearch/detr/blob/master/models/detr.py + + """ + + def __init__(self, input_dim, hidden_dim, output_dim, num_layers): + super().__init__() + self.num_layers = num_layers + h = [hidden_dim] * (num_layers - 1) + self.layers = nn.ModuleList(nn.Linear(n, k) for n, k in zip([input_dim] + h, h + [output_dim])) + + def forward(self, x): + for i, layer in enumerate(self.layers): + x = nn.functional.relu(layer(x)) if i < self.num_layers - 1 else layer(x) + return x + + +# Copied from transformers.models.detr.modeling_detr.DetrPreTrainedModel with Detr->ConditionalDetr +class ConditionalDetrPreTrainedModel(PreTrainedModel): + config_class = ConditionalDetrConfig + base_model_prefix = "model" + main_input_name = "pixel_values" + _no_split_modules = [r"ConditionalDetrConvEncoder", r"ConditionalDetrEncoderLayer", r"ConditionalDetrDecoderLayer"] + + def _init_weights(self, module): + std = self.config.init_std + xavier_std = self.config.init_xavier_std + + if isinstance(module, ConditionalDetrMHAttentionMap): + nn.init.zeros_(module.k_linear.bias) + nn.init.zeros_(module.q_linear.bias) + nn.init.xavier_uniform_(module.k_linear.weight, gain=xavier_std) + nn.init.xavier_uniform_(module.q_linear.weight, gain=xavier_std) + elif isinstance(module, ConditionalDetrLearnedPositionEmbedding): + nn.init.uniform_(module.row_embeddings.weight) + nn.init.uniform_(module.column_embeddings.weight) + if isinstance(module, (nn.Linear, nn.Conv2d, nn.BatchNorm2d)): + # Slightly different from the TF version which uses truncated_normal for initialization + # cf https://github.com/pytorch/pytorch/pull/5617 + module.weight.data.normal_(mean=0.0, std=std) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=std) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + + +CONDITIONAL_DETR_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`ConditionalDetrConfig`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +CONDITIONAL_DETR_INPUTS_DOCSTRING = r""" + Args: + pixel_values (`torch.FloatTensor` of shape `(batch_size, num_channels, height, width)`): + Pixel values. Padding will be ignored by default should you provide it. + + Pixel values can be obtained using [`AutoImageProcessor`]. See [`ConditionalDetrImageProcessor.__call__`] + for details. + + pixel_mask (`torch.LongTensor` of shape `(batch_size, height, width)`, *optional*): + Mask to avoid performing attention on padding pixel values. Mask values selected in `[0, 1]`: + + - 1 for pixels that are real (i.e. **not masked**), + - 0 for pixels that are padding (i.e. **masked**). + + [What are attention masks?](../glossary#attention-mask) + + decoder_attention_mask (`torch.FloatTensor` of shape `(batch_size, num_queries)`, *optional*): + Not used by default. Can be used to mask object queries. + encoder_outputs (`tuple(tuple(torch.FloatTensor)`, *optional*): + Tuple consists of (`last_hidden_state`, *optional*: `hidden_states`, *optional*: `attentions`) + `last_hidden_state` of shape `(batch_size, sequence_length, hidden_size)`, *optional*) is a sequence of + hidden-states at the output of the last layer of the encoder. Used in the cross-attention of the decoder. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing the flattened feature map (output of the backbone + projection layer), you + can choose to directly pass a flattened representation of an image. + decoder_inputs_embeds (`torch.FloatTensor` of shape `(batch_size, num_queries, hidden_size)`, *optional*): + Optionally, instead of initializing the queries with a tensor of zeros, you can choose to directly pass an + embedded representation. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +# Copied from transformers.models.detr.modeling_detr.DetrEncoder with Detr->ConditionalDetr,DETR->ConditionalDETR +class ConditionalDetrEncoder(ConditionalDetrPreTrainedModel): + """ + Transformer encoder consisting of *config.encoder_layers* self attention layers. Each layer is a + [`ConditionalDetrEncoderLayer`]. + + The encoder updates the flattened feature map through multiple self-attention layers. + + Small tweak for ConditionalDETR: + + - object_queries are added to the forward pass. + + Args: + config: ConditionalDetrConfig + """ + + def __init__(self, config: ConditionalDetrConfig): + super().__init__(config) + + self.dropout = config.dropout + self.layerdrop = config.encoder_layerdrop + + self.layers = nn.ModuleList([ConditionalDetrEncoderLayer(config) for _ in range(config.encoder_layers)]) + + # in the original ConditionalDETR, no layernorm is used at the end of the encoder, as "normalize_before" is set to False by default + + # Initialize weights and apply final processing + self.post_init() + + def forward( + self, + inputs_embeds=None, + attention_mask=None, + object_queries=None, + output_attentions=None, + output_hidden_states=None, + return_dict=None, + **kwargs, + ): + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Flattened feature map (output of the backbone + projection layer) that is passed to the encoder. + + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding pixel features. Mask values selected in `[0, 1]`: + + - 1 for pixel features that are real (i.e. **not masked**), + - 0 for pixel features that are padding (i.e. **masked**). + + [What are attention masks?](../glossary#attention-mask) + + object_queries (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Object queries that are added to the queries in each self-attention layer. + + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + position_embeddings = kwargs.pop("position_embeddings", None) + + if kwargs: + raise ValueError(f"Unexpected arguments {kwargs.keys()}") + + if position_embeddings is not None and object_queries is not None: + raise ValueError( + "Cannot specify both position_embeddings and object_queries. Please use just object_queries" + ) + + if position_embeddings is not None: + logger.warning_once( + "position_embeddings has been deprecated and will be removed in v4.34. Please use object_queries instead" + ) + object_queries = position_embeddings + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + hidden_states = inputs_embeds + hidden_states = nn.functional.dropout(hidden_states, p=self.dropout, training=self.training) + + # expand attention_mask + if attention_mask is not None: + # [batch_size, seq_len] -> [batch_size, 1, target_seq_len, source_seq_len] + attention_mask = _prepare_4d_attention_mask(attention_mask, inputs_embeds.dtype) + + encoder_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + for i, encoder_layer in enumerate(self.layers): + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + # add LayerDrop (see https://arxiv.org/abs/1909.11556 for description) + to_drop = False + if self.training: + dropout_probability = torch.rand([]) + if dropout_probability < self.layerdrop: # skip the layer + to_drop = True + + if to_drop: + layer_outputs = (None, None) + else: + # we add object_queries as extra input to the encoder_layer + layer_outputs = encoder_layer( + hidden_states, + attention_mask, + object_queries=object_queries, + output_attentions=output_attentions, + ) + + hidden_states = layer_outputs[0] + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[1],) + + if output_hidden_states: + encoder_states = encoder_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, encoder_states, all_attentions] if v is not None) + return BaseModelOutput( + last_hidden_state=hidden_states, hidden_states=encoder_states, attentions=all_attentions + ) + + +class ConditionalDetrDecoder(ConditionalDetrPreTrainedModel): + """ + Transformer decoder consisting of *config.decoder_layers* layers. Each layer is a [`ConditionalDetrDecoderLayer`]. + + The decoder updates the query embeddings through multiple self-attention and cross-attention layers. + + Some small tweaks for Conditional DETR: + + - object_queries and query_position_embeddings are added to the forward pass. + - if self.config.auxiliary_loss is set to True, also returns a stack of activations from all decoding layers. + + Args: + config: ConditionalDetrConfig + """ + + def __init__(self, config: ConditionalDetrConfig): + super().__init__(config) + self.dropout = config.dropout + self.layerdrop = config.decoder_layerdrop + + self.layers = nn.ModuleList([ConditionalDetrDecoderLayer(config) for _ in range(config.decoder_layers)]) + # in Conditional DETR, the decoder uses layernorm after the last decoder layer output + self.layernorm = nn.LayerNorm(config.d_model) + d_model = config.d_model + self.gradient_checkpointing = False + + # query_scale is the FFN applied on f to generate transformation T + self.query_scale = MLP(d_model, d_model, d_model, 2) + self.ref_point_head = MLP(d_model, d_model, 2, 2) + for layer_id in range(config.decoder_layers - 1): + self.layers[layer_id + 1].ca_qpos_proj = None + + # Initialize weights and apply final processing + self.post_init() + + def forward( + self, + inputs_embeds=None, + attention_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + object_queries=None, + query_position_embeddings=None, + output_attentions=None, + output_hidden_states=None, + return_dict=None, + **kwargs, + ): + r""" + Args: + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + The query embeddings that are passed into the decoder. + + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on certain queries. Mask values selected in `[0, 1]`: + + - 1 for queries that are **not masked**, + - 0 for queries that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + encoder_hidden_states (`torch.FloatTensor` of shape `(batch_size, encoder_sequence_length, hidden_size)`, *optional*): + Sequence of hidden-states at the output of the last layer of the encoder. Used in the cross-attention + of the decoder. + encoder_attention_mask (`torch.LongTensor` of shape `(batch_size, encoder_sequence_length)`, *optional*): + Mask to avoid performing cross-attention on padding pixel_values of the encoder. Mask values selected + in `[0, 1]`: + + - 1 for pixels that are real (i.e. **not masked**), + - 0 for pixels that are padding (i.e. **masked**). + + object_queries (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Position embeddings that are added to the queries and keys in each cross-attention layer. + query_position_embeddings (`torch.FloatTensor` of shape `(batch_size, num_queries, hidden_size)`): + , *optional*): Position embeddings that are added to the queries and keys in each self-attention layer. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors + for more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. + """ + position_embeddings = kwargs.pop("position_embeddings", None) + + if kwargs: + raise ValueError(f"Unexpected arguments {kwargs.keys()}") + + if position_embeddings is not None and object_queries is not None: + raise ValueError( + "Cannot specify both position_embeddings and object_queries. Please use just object_queries" + ) + + if position_embeddings is not None: + logger.warning_once( + "position_embeddings has been deprecated and will be removed in v4.34. Please use object_queries instead" + ) + object_queries = position_embeddings + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if inputs_embeds is not None: + hidden_states = inputs_embeds + input_shape = inputs_embeds.size()[:-1] + + # expand encoder attention mask + if encoder_hidden_states is not None and encoder_attention_mask is not None: + # [batch_size, seq_len] -> [batch_size, 1, target_seq_len, source_seq_len] + encoder_attention_mask = _prepare_4d_attention_mask( + encoder_attention_mask, inputs_embeds.dtype, tgt_len=input_shape[-1] + ) + + # optional intermediate hidden states + intermediate = () if self.config.auxiliary_loss else None + + # decoder layers + all_hidden_states = () if output_hidden_states else None + all_self_attns = () if output_attentions else None + all_cross_attentions = () if (output_attentions and encoder_hidden_states is not None) else None + + reference_points_before_sigmoid = self.ref_point_head( + query_position_embeddings + ) # [num_queries, batch_size, 2] + reference_points = reference_points_before_sigmoid.sigmoid().transpose(0, 1) + obj_center = reference_points[..., :2].transpose(0, 1) + # get sine embedding for the query vector + query_sine_embed_before_transformation = gen_sine_position_embeddings(obj_center, self.config.d_model) + + for idx, decoder_layer in enumerate(self.layers): + # add LayerDrop (see https://arxiv.org/abs/1909.11556 for description) + if output_hidden_states: + all_hidden_states += (hidden_states,) + if self.training: + dropout_probability = torch.rand([]) + if dropout_probability < self.layerdrop: + continue + if idx == 0: + pos_transformation = 1 + else: + pos_transformation = self.query_scale(hidden_states) + # apply transformation + query_sine_embed = query_sine_embed_before_transformation * pos_transformation + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + decoder_layer.__call__, + hidden_states, + None, + object_queries, + query_position_embeddings, + query_sine_embed, + encoder_hidden_states, + encoder_attention_mask, + None, + None, + ) + else: + layer_outputs = decoder_layer( + hidden_states, + attention_mask=None, + object_queries=object_queries, + query_position_embeddings=query_position_embeddings, + query_sine_embed=query_sine_embed, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_attention_mask, + output_attentions=output_attentions, + is_first=(idx == 0), + ) + + hidden_states = layer_outputs[0] + + if self.config.auxiliary_loss: + hidden_states = self.layernorm(hidden_states) + intermediate += (hidden_states,) + + if output_attentions: + all_self_attns += (layer_outputs[1],) + + if encoder_hidden_states is not None: + all_cross_attentions += (layer_outputs[2],) + + # finally, apply layernorm + hidden_states = self.layernorm(hidden_states) + + # add hidden states from the last decoder layer + if output_hidden_states: + all_hidden_states += (hidden_states,) + + # stack intermediate decoder activations + if self.config.auxiliary_loss: + intermediate = torch.stack(intermediate) + + if not return_dict: + return tuple( + v + for v in [ + hidden_states, + all_hidden_states, + all_self_attns, + all_cross_attentions, + intermediate, + reference_points, + ] + if v is not None + ) + return ConditionalDetrDecoderOutput( + last_hidden_state=hidden_states, + hidden_states=all_hidden_states, + attentions=all_self_attns, + cross_attentions=all_cross_attentions, + intermediate_hidden_states=intermediate, + reference_points=reference_points, + ) + + +@add_start_docstrings( + """ + The bare Conditional DETR Model (consisting of a backbone and encoder-decoder Transformer) outputting raw + hidden-states without any specific head on top. + """, + CONDITIONAL_DETR_START_DOCSTRING, +) +class ConditionalDetrModel(ConditionalDetrPreTrainedModel): + def __init__(self, config: ConditionalDetrConfig): + super().__init__(config) + + # Create backbone + positional encoding + backbone = ConditionalDetrConvEncoder(config) + object_queries = build_position_encoding(config) + self.backbone = ConditionalDetrConvModel(backbone, object_queries) + + # Create projection layer + self.input_projection = nn.Conv2d(backbone.intermediate_channel_sizes[-1], config.d_model, kernel_size=1) + + self.query_position_embeddings = nn.Embedding(config.num_queries, config.d_model) + + self.encoder = ConditionalDetrEncoder(config) + self.decoder = ConditionalDetrDecoder(config) + + # Initialize weights and apply final processing + self.post_init() + + def get_encoder(self): + return self.encoder + + def get_decoder(self): + return self.decoder + + def freeze_backbone(self): + for name, param in self.backbone.conv_encoder.model.named_parameters(): + param.requires_grad_(False) + + def unfreeze_backbone(self): + for name, param in self.backbone.conv_encoder.model.named_parameters(): + param.requires_grad_(True) + + @add_start_docstrings_to_model_forward(CONDITIONAL_DETR_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=ConditionalDetrModelOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + pixel_values: torch.FloatTensor, + pixel_mask: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + encoder_outputs: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + decoder_inputs_embeds: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], ConditionalDetrModelOutput]: + r""" + Returns: + + Examples: + + ```python + >>> from transformers import AutoImageProcessor, AutoModel + >>> from PIL import Image + >>> import requests + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + + >>> image_processor = AutoImageProcessor.from_pretrained("microsoft/conditional-detr-resnet-50") + >>> model = AutoModel.from_pretrained("microsoft/conditional-detr-resnet-50") + + >>> # prepare image for the model + >>> inputs = image_processor(images=image, return_tensors="pt") + + >>> # forward pass + >>> outputs = model(**inputs) + + >>> # the last hidden states are the final query embeddings of the Transformer decoder + >>> # these are of shape (batch_size, num_queries, hidden_size) + >>> last_hidden_states = outputs.last_hidden_state + >>> list(last_hidden_states.shape) + [1, 300, 256] + ```""" + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + batch_size, num_channels, height, width = pixel_values.shape + device = pixel_values.device + + if pixel_mask is None: + pixel_mask = torch.ones(((batch_size, height, width)), device=device) + + # First, sent pixel_values + pixel_mask through Backbone to obtain the features + # pixel_values should be of shape (batch_size, num_channels, height, width) + # pixel_mask should be of shape (batch_size, height, width) + features, object_queries_list = self.backbone(pixel_values, pixel_mask) + + # get final feature map and downsampled mask + feature_map, mask = features[-1] + + if mask is None: + raise ValueError("Backbone does not return downsampled pixel mask") + + # Second, apply 1x1 convolution to reduce the channel dimension to d_model (256 by default) + projected_feature_map = self.input_projection(feature_map) + + # Third, flatten the feature map + object_queries of shape NxCxHxW to NxCxHW, and permute it to NxHWxC + # In other words, turn their shape into (batch_size, sequence_length, hidden_size) + flattened_features = projected_feature_map.flatten(2).permute(0, 2, 1) + object_queries = object_queries_list[-1].flatten(2).permute(0, 2, 1) + + flattened_mask = mask.flatten(1) + + # Fourth, sent flattened_features + flattened_mask + object_queries through encoder + # flattened_features is a Tensor of shape (batch_size, heigth*width, hidden_size) + # flattened_mask is a Tensor of shape (batch_size, heigth*width) + if encoder_outputs is None: + encoder_outputs = self.encoder( + inputs_embeds=flattened_features, + attention_mask=flattened_mask, + object_queries=object_queries, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + # If the user passed a tuple for encoder_outputs, we wrap it in a BaseModelOutput when return_dict=True + elif return_dict and not isinstance(encoder_outputs, BaseModelOutput): + encoder_outputs = BaseModelOutput( + last_hidden_state=encoder_outputs[0], + hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None, + attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None, + ) + + # Fifth, sent query embeddings + object_queries through the decoder (which is conditioned on the encoder output) + query_position_embeddings = self.query_position_embeddings.weight.unsqueeze(0).repeat(batch_size, 1, 1) + queries = torch.zeros_like(query_position_embeddings) + + # decoder outputs consists of (dec_features, dec_hidden, dec_attn) + decoder_outputs = self.decoder( + inputs_embeds=queries, + attention_mask=None, + object_queries=object_queries, + query_position_embeddings=query_position_embeddings, + encoder_hidden_states=encoder_outputs[0], + encoder_attention_mask=flattened_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + if not return_dict: + return decoder_outputs + encoder_outputs + + return ConditionalDetrModelOutput( + last_hidden_state=decoder_outputs.last_hidden_state, + decoder_hidden_states=decoder_outputs.hidden_states, + decoder_attentions=decoder_outputs.attentions, + cross_attentions=decoder_outputs.cross_attentions, + encoder_last_hidden_state=encoder_outputs.last_hidden_state, + encoder_hidden_states=encoder_outputs.hidden_states, + encoder_attentions=encoder_outputs.attentions, + intermediate_hidden_states=decoder_outputs.intermediate_hidden_states, + reference_points=decoder_outputs.reference_points, + ) + + +@add_start_docstrings( + """ + CONDITIONAL_DETR Model (consisting of a backbone and encoder-decoder Transformer) with object detection heads on + top, for tasks such as COCO detection. + """, + CONDITIONAL_DETR_START_DOCSTRING, +) +class ConditionalDetrForObjectDetection(ConditionalDetrPreTrainedModel): + def __init__(self, config: ConditionalDetrConfig): + super().__init__(config) + + # CONDITIONAL DETR encoder-decoder model + self.model = ConditionalDetrModel(config) + + # Object detection heads + self.class_labels_classifier = nn.Linear( + config.d_model, config.num_labels + ) # We add one for the "no object" class + self.bbox_predictor = ConditionalDetrMLPPredictionHead( + input_dim=config.d_model, hidden_dim=config.d_model, output_dim=4, num_layers=3 + ) + + # Initialize weights and apply final processing + self.post_init() + + # taken from https://github.com/Atten4Vis/conditionalDETR/blob/master/models/conditional_detr.py + @torch.jit.unused + def _set_aux_loss(self, outputs_class, outputs_coord): + # this is a workaround to make torchscript happy, as torchscript + # doesn't support dictionary with non-homogeneous values, such + # as a dict having both a Tensor and a list. + return [{"logits": a, "pred_boxes": b} for a, b in zip(outputs_class[:-1], outputs_coord[:-1])] + + @add_start_docstrings_to_model_forward(CONDITIONAL_DETR_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=ConditionalDetrObjectDetectionOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + pixel_values: torch.FloatTensor, + pixel_mask: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.LongTensor] = None, + encoder_outputs: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + decoder_inputs_embeds: Optional[torch.FloatTensor] = None, + labels: Optional[List[dict]] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], ConditionalDetrObjectDetectionOutput]: + r""" + labels (`List[Dict]` of len `(batch_size,)`, *optional*): + Labels for computing the bipartite matching loss. List of dicts, each dictionary containing at least the + following 2 keys: 'class_labels' and 'boxes' (the class labels and bounding boxes of an image in the batch + respectively). The class labels themselves should be a `torch.LongTensor` of len `(number of bounding boxes + in the image,)` and the boxes a `torch.FloatTensor` of shape `(number of bounding boxes in the image, 4)`. + + Returns: + + Examples: + + ```python + >>> from transformers import AutoImageProcessor, AutoModelForObjectDetection + >>> from PIL import Image + >>> import requests + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + + >>> image_processor = AutoImageProcessor.from_pretrained("microsoft/conditional-detr-resnet-50") + >>> model = AutoModelForObjectDetection.from_pretrained("microsoft/conditional-detr-resnet-50") + + >>> inputs = image_processor(images=image, return_tensors="pt") + + >>> outputs = model(**inputs) + + >>> # convert outputs (bounding boxes and class logits) to Pascal VOC format (xmin, ymin, xmax, ymax) + >>> target_sizes = torch.tensor([image.size[::-1]]) + >>> results = image_processor.post_process_object_detection(outputs, threshold=0.5, target_sizes=target_sizes)[ + ... 0 + ... ] + >>> for score, label, box in zip(results["scores"], results["labels"], results["boxes"]): + ... box = [round(i, 2) for i in box.tolist()] + ... print( + ... f"Detected {model.config.id2label[label.item()]} with confidence " + ... f"{round(score.item(), 3)} at location {box}" + ... ) + Detected remote with confidence 0.833 at location [38.31, 72.1, 177.63, 118.45] + Detected cat with confidence 0.831 at location [9.2, 51.38, 321.13, 469.0] + Detected cat with confidence 0.804 at location [340.3, 16.85, 642.93, 370.95] + Detected remote with confidence 0.683 at location [334.48, 73.49, 366.37, 190.01] + Detected couch with confidence 0.535 at location [0.52, 1.19, 640.35, 475.1] + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # First, sent images through CONDITIONAL_DETR base model to obtain encoder + decoder outputs + outputs = self.model( + pixel_values, + pixel_mask=pixel_mask, + decoder_attention_mask=decoder_attention_mask, + encoder_outputs=encoder_outputs, + inputs_embeds=inputs_embeds, + decoder_inputs_embeds=decoder_inputs_embeds, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + sequence_output = outputs[0] + + # class logits + predicted bounding boxes + logits = self.class_labels_classifier(sequence_output) + + reference = outputs.reference_points if return_dict else outputs[-1] + reference_before_sigmoid = inverse_sigmoid(reference).transpose(0, 1) + outputs_coords = [] + hs = sequence_output + tmp = self.bbox_predictor(hs) + tmp[..., :2] += reference_before_sigmoid + pred_boxes = tmp.sigmoid() + # pred_boxes = self.bbox_predictor(sequence_output).sigmoid() + + loss, loss_dict, auxiliary_outputs = None, None, None + if labels is not None: + # First: create the matcher + matcher = ConditionalDetrHungarianMatcher( + class_cost=self.config.class_cost, bbox_cost=self.config.bbox_cost, giou_cost=self.config.giou_cost + ) + # Second: create the criterion + losses = ["labels", "boxes", "cardinality"] + criterion = ConditionalDetrLoss( + matcher=matcher, + num_classes=self.config.num_labels, + focal_alpha=self.config.focal_alpha, + losses=losses, + ) + criterion.to(self.device) + # Third: compute the losses, based on outputs and labels + outputs_loss = {} + outputs_loss["logits"] = logits + outputs_loss["pred_boxes"] = pred_boxes + if self.config.auxiliary_loss: + intermediate = outputs.intermediate_hidden_states if return_dict else outputs[4] + outputs_class = self.class_labels_classifier(intermediate) + + for lvl in range(intermediate.shape[0]): + tmp = self.bbox_predictor(intermediate[lvl]) + tmp[..., :2] += reference_before_sigmoid + outputs_coord = tmp.sigmoid() + outputs_coords.append(outputs_coord) + outputs_coord = torch.stack(outputs_coords) + + auxiliary_outputs = self._set_aux_loss(outputs_class, outputs_coord) + outputs_loss["auxiliary_outputs"] = auxiliary_outputs + + loss_dict = criterion(outputs_loss, labels) + # Fourth: compute total loss, as a weighted sum of the various losses + weight_dict = {"loss_ce": self.config.cls_loss_coefficient, "loss_bbox": self.config.bbox_loss_coefficient} + weight_dict["loss_giou"] = self.config.giou_loss_coefficient + if self.config.auxiliary_loss: + aux_weight_dict = {} + for i in range(self.config.decoder_layers - 1): + aux_weight_dict.update({k + f"_{i}": v for k, v in weight_dict.items()}) + weight_dict.update(aux_weight_dict) + loss = sum(loss_dict[k] * weight_dict[k] for k in loss_dict.keys() if k in weight_dict) + + if not return_dict: + if auxiliary_outputs is not None: + output = (logits, pred_boxes) + auxiliary_outputs + outputs + else: + output = (logits, pred_boxes) + outputs + return ((loss, loss_dict) + output) if loss is not None else output + + return ConditionalDetrObjectDetectionOutput( + loss=loss, + loss_dict=loss_dict, + logits=logits, + pred_boxes=pred_boxes, + auxiliary_outputs=auxiliary_outputs, + last_hidden_state=outputs.last_hidden_state, + decoder_hidden_states=outputs.decoder_hidden_states, + decoder_attentions=outputs.decoder_attentions, + cross_attentions=outputs.cross_attentions, + encoder_last_hidden_state=outputs.encoder_last_hidden_state, + encoder_hidden_states=outputs.encoder_hidden_states, + encoder_attentions=outputs.encoder_attentions, + ) + + +@add_start_docstrings( + """ + CONDITIONAL_DETR Model (consisting of a backbone and encoder-decoder Transformer) with a segmentation head on top, + for tasks such as COCO panoptic. + + """, + CONDITIONAL_DETR_START_DOCSTRING, +) +class ConditionalDetrForSegmentation(ConditionalDetrPreTrainedModel): + def __init__(self, config: ConditionalDetrConfig): + super().__init__(config) + + # object detection model + self.conditional_detr = ConditionalDetrForObjectDetection(config) + + # segmentation head + hidden_size, number_of_heads = config.d_model, config.encoder_attention_heads + intermediate_channel_sizes = self.conditional_detr.model.backbone.conv_encoder.intermediate_channel_sizes + + self.mask_head = ConditionalDetrMaskHeadSmallConv( + hidden_size + number_of_heads, intermediate_channel_sizes[::-1][-3:], hidden_size + ) + + self.bbox_attention = ConditionalDetrMHAttentionMap( + hidden_size, hidden_size, number_of_heads, dropout=0.0, std=config.init_xavier_std + ) + + # Initialize weights and apply final processing + self.post_init() + + @add_start_docstrings_to_model_forward(CONDITIONAL_DETR_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=ConditionalDetrSegmentationOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + pixel_values: torch.FloatTensor, + pixel_mask: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.FloatTensor] = None, + encoder_outputs: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + decoder_inputs_embeds: Optional[torch.FloatTensor] = None, + labels: Optional[List[dict]] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], ConditionalDetrSegmentationOutput]: + r""" + labels (`List[Dict]` of len `(batch_size,)`, *optional*): + Labels for computing the bipartite matching loss, DICE/F-1 loss and Focal loss. List of dicts, each + dictionary containing at least the following 3 keys: 'class_labels', 'boxes' and 'masks' (the class labels, + bounding boxes and segmentation masks of an image in the batch respectively). The class labels themselves + should be a `torch.LongTensor` of len `(number of bounding boxes in the image,)`, the boxes a + `torch.FloatTensor` of shape `(number of bounding boxes in the image, 4)` and the masks a + `torch.FloatTensor` of shape `(number of bounding boxes in the image, height, width)`. + + Returns: + + Examples: + + ```python + >>> import io + >>> import requests + >>> from PIL import Image + >>> import torch + >>> import numpy + + >>> from transformers import ( + ... AutoImageProcessor, + ... ConditionalDetrConfig, + ... ConditionalDetrForSegmentation, + ... ) + >>> from transformers.image_transforms import rgb_to_id + + >>> url = "http://images.cocodataset.org/val2017/000000039769.jpg" + >>> image = Image.open(requests.get(url, stream=True).raw) + + >>> image_processor = AutoImageProcessor.from_pretrained("microsoft/conditional-detr-resnet-50") + + >>> # randomly initialize all weights of the model + >>> config = ConditionalDetrConfig() + >>> model = ConditionalDetrForSegmentation(config) + + >>> # prepare image for the model + >>> inputs = image_processor(images=image, return_tensors="pt") + + >>> # forward pass + >>> outputs = model(**inputs) + + >>> # Use the `post_process_panoptic_segmentation` method of the `image_processor` to retrieve post-processed panoptic segmentation maps + >>> # Segmentation results are returned as a list of dictionaries + >>> result = image_processor.post_process_panoptic_segmentation(outputs, target_sizes=[(300, 500)]) + >>> # A tensor of shape (height, width) where each value denotes a segment id, filled with -1 if no segment is found + >>> panoptic_seg = result[0]["segmentation"] + >>> # Get prediction score and segment_id to class_id mapping of each segment + >>> panoptic_segments_info = result[0]["segments_info"] + ```""" + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + batch_size, num_channels, height, width = pixel_values.shape + device = pixel_values.device + + if pixel_mask is None: + pixel_mask = torch.ones((batch_size, height, width), device=device) + + # First, get list of feature maps and object_queries + features, object_queries_list = self.conditional_detr.model.backbone(pixel_values, pixel_mask=pixel_mask) + + # Second, apply 1x1 convolution to reduce the channel dimension to d_model (256 by default) + feature_map, mask = features[-1] + batch_size, num_channels, height, width = feature_map.shape + projected_feature_map = self.conditional_detr.model.input_projection(feature_map) + + # Third, flatten the feature map + object_queries of shape NxCxHxW to NxCxHW, and permute it to NxHWxC + # In other words, turn their shape into (batch_size, sequence_length, hidden_size) + flattened_features = projected_feature_map.flatten(2).permute(0, 2, 1) + object_queries = object_queries_list[-1].flatten(2).permute(0, 2, 1) + + flattened_mask = mask.flatten(1) + + # Fourth, sent flattened_features + flattened_mask + object_queries through encoder + # flattened_features is a Tensor of shape (batch_size, heigth*width, hidden_size) + # flattened_mask is a Tensor of shape (batch_size, heigth*width) + if encoder_outputs is None: + encoder_outputs = self.conditional_detr.model.encoder( + inputs_embeds=flattened_features, + attention_mask=flattened_mask, + object_queries=object_queries, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + # If the user passed a tuple for encoder_outputs, we wrap it in a BaseModelOutput when return_dict=True + elif return_dict and not isinstance(encoder_outputs, BaseModelOutput): + encoder_outputs = BaseModelOutput( + last_hidden_state=encoder_outputs[0], + hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None, + attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None, + ) + + # Fifth, sent query embeddings + object_queries through the decoder (which is conditioned on the encoder output) + query_position_embeddings = self.conditional_detr.model.query_position_embeddings.weight.unsqueeze(0).repeat( + batch_size, 1, 1 + ) + queries = torch.zeros_like(query_position_embeddings) + + # decoder outputs consists of (dec_features, dec_hidden, dec_attn) + decoder_outputs = self.conditional_detr.model.decoder( + inputs_embeds=queries, + attention_mask=None, + object_queries=object_queries, + query_position_embeddings=query_position_embeddings, + encoder_hidden_states=encoder_outputs[0], + encoder_attention_mask=flattened_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + sequence_output = decoder_outputs[0] + + # Sixth, compute logits, pred_boxes and pred_masks + logits = self.conditional_detr.class_labels_classifier(sequence_output) + pred_boxes = self.conditional_detr.bbox_predictor(sequence_output).sigmoid() + + memory = encoder_outputs[0].permute(0, 2, 1).view(batch_size, self.config.d_model, height, width) + mask = flattened_mask.view(batch_size, height, width) + + # FIXME h_boxes takes the last one computed, keep this in mind + # important: we need to reverse the mask, since in the original implementation the mask works reversed + # bbox_mask is of shape (batch_size, num_queries, number_of_attention_heads in bbox_attention, height/32, width/32) + bbox_mask = self.bbox_attention(sequence_output, memory, mask=~mask) + + seg_masks = self.mask_head(projected_feature_map, bbox_mask, [features[2][0], features[1][0], features[0][0]]) + + pred_masks = seg_masks.view( + batch_size, self.conditional_detr.config.num_queries, seg_masks.shape[-2], seg_masks.shape[-1] + ) + + loss, loss_dict, auxiliary_outputs = None, None, None + if labels is not None: + # First: create the matcher + matcher = ConditionalDetrHungarianMatcher( + class_cost=self.config.class_cost, bbox_cost=self.config.bbox_cost, giou_cost=self.config.giou_cost + ) + # Second: create the criterion + losses = ["labels", "boxes", "cardinality", "masks"] + criterion = ConditionalDetrLoss( + matcher=matcher, + num_classes=self.config.num_labels, + focal_alpha=self.config.focal_alpha, + losses=losses, + ) + criterion.to(self.device) + # Third: compute the losses, based on outputs and labels + outputs_loss = {} + outputs_loss["logits"] = logits + outputs_loss["pred_boxes"] = pred_boxes + outputs_loss["pred_masks"] = pred_masks + if self.config.auxiliary_loss: + intermediate = decoder_outputs.intermediate_hidden_states if return_dict else decoder_outputs[-1] + outputs_class = self.conditional_detr.class_labels_classifier(intermediate) + outputs_coord = self.conditional_detr.bbox_predictor(intermediate).sigmoid() + auxiliary_outputs = self.conditional_detr._set_aux_loss(outputs_class, outputs_coord) + outputs_loss["auxiliary_outputs"] = auxiliary_outputs + + loss_dict = criterion(outputs_loss, labels) + # Fourth: compute total loss, as a weighted sum of the various losses + weight_dict = {"loss_ce": 1, "loss_bbox": self.config.bbox_loss_coefficient} + weight_dict["loss_giou"] = self.config.giou_loss_coefficient + weight_dict["loss_mask"] = self.config.mask_loss_coefficient + weight_dict["loss_dice"] = self.config.dice_loss_coefficient + if self.config.auxiliary_loss: + aux_weight_dict = {} + for i in range(self.config.decoder_layers - 1): + aux_weight_dict.update({k + f"_{i}": v for k, v in weight_dict.items()}) + weight_dict.update(aux_weight_dict) + loss = sum(loss_dict[k] * weight_dict[k] for k in loss_dict.keys() if k in weight_dict) + + if not return_dict: + if auxiliary_outputs is not None: + output = (logits, pred_boxes, pred_masks) + auxiliary_outputs + decoder_outputs + encoder_outputs + else: + output = (logits, pred_boxes, pred_masks) + decoder_outputs + encoder_outputs + return ((loss, loss_dict) + output) if loss is not None else output + + return ConditionalDetrSegmentationOutput( + loss=loss, + loss_dict=loss_dict, + logits=logits, + pred_boxes=pred_boxes, + pred_masks=pred_masks, + auxiliary_outputs=auxiliary_outputs, + last_hidden_state=decoder_outputs.last_hidden_state, + decoder_hidden_states=decoder_outputs.hidden_states, + decoder_attentions=decoder_outputs.attentions, + cross_attentions=decoder_outputs.cross_attentions, + encoder_last_hidden_state=encoder_outputs.last_hidden_state, + encoder_hidden_states=encoder_outputs.hidden_states, + encoder_attentions=encoder_outputs.attentions, + ) + + +def _expand(tensor, length: int): + return tensor.unsqueeze(1).repeat(1, int(length), 1, 1, 1).flatten(0, 1) + + +# Copied from transformers.models.detr.modeling_detr.DetrMaskHeadSmallConv with Detr->ConditionalDetr +class ConditionalDetrMaskHeadSmallConv(nn.Module): + """ + Simple convolutional head, using group norm. Upsampling is done using a FPN approach + """ + + def __init__(self, dim, fpn_dims, context_dim): + super().__init__() + + if dim % 8 != 0: + raise ValueError( + "The hidden_size + number of attention heads must be divisible by 8 as the number of groups in" + " GroupNorm is set to 8" + ) + + inter_dims = [dim, context_dim // 2, context_dim // 4, context_dim // 8, context_dim // 16, context_dim // 64] + + self.lay1 = nn.Conv2d(dim, dim, 3, padding=1) + self.gn1 = nn.GroupNorm(8, dim) + self.lay2 = nn.Conv2d(dim, inter_dims[1], 3, padding=1) + self.gn2 = nn.GroupNorm(min(8, inter_dims[1]), inter_dims[1]) + self.lay3 = nn.Conv2d(inter_dims[1], inter_dims[2], 3, padding=1) + self.gn3 = nn.GroupNorm(min(8, inter_dims[2]), inter_dims[2]) + self.lay4 = nn.Conv2d(inter_dims[2], inter_dims[3], 3, padding=1) + self.gn4 = nn.GroupNorm(min(8, inter_dims[3]), inter_dims[3]) + self.lay5 = nn.Conv2d(inter_dims[3], inter_dims[4], 3, padding=1) + self.gn5 = nn.GroupNorm(min(8, inter_dims[4]), inter_dims[4]) + self.out_lay = nn.Conv2d(inter_dims[4], 1, 3, padding=1) + + self.dim = dim + + self.adapter1 = nn.Conv2d(fpn_dims[0], inter_dims[1], 1) + self.adapter2 = nn.Conv2d(fpn_dims[1], inter_dims[2], 1) + self.adapter3 = nn.Conv2d(fpn_dims[2], inter_dims[3], 1) + + for m in self.modules(): + if isinstance(m, nn.Conv2d): + nn.init.kaiming_uniform_(m.weight, a=1) + nn.init.constant_(m.bias, 0) + + def forward(self, x: Tensor, bbox_mask: Tensor, fpns: List[Tensor]): + # here we concatenate x, the projected feature map, of shape (batch_size, d_model, heigth/32, width/32) with + # the bbox_mask = the attention maps of shape (batch_size, n_queries, n_heads, height/32, width/32). + # We expand the projected feature map to match the number of heads. + x = torch.cat([_expand(x, bbox_mask.shape[1]), bbox_mask.flatten(0, 1)], 1) + + x = self.lay1(x) + x = self.gn1(x) + x = nn.functional.relu(x) + x = self.lay2(x) + x = self.gn2(x) + x = nn.functional.relu(x) + + cur_fpn = self.adapter1(fpns[0]) + if cur_fpn.size(0) != x.size(0): + cur_fpn = _expand(cur_fpn, x.size(0) // cur_fpn.size(0)) + x = cur_fpn + nn.functional.interpolate(x, size=cur_fpn.shape[-2:], mode="nearest") + x = self.lay3(x) + x = self.gn3(x) + x = nn.functional.relu(x) + + cur_fpn = self.adapter2(fpns[1]) + if cur_fpn.size(0) != x.size(0): + cur_fpn = _expand(cur_fpn, x.size(0) // cur_fpn.size(0)) + x = cur_fpn + nn.functional.interpolate(x, size=cur_fpn.shape[-2:], mode="nearest") + x = self.lay4(x) + x = self.gn4(x) + x = nn.functional.relu(x) + + cur_fpn = self.adapter3(fpns[2]) + if cur_fpn.size(0) != x.size(0): + cur_fpn = _expand(cur_fpn, x.size(0) // cur_fpn.size(0)) + x = cur_fpn + nn.functional.interpolate(x, size=cur_fpn.shape[-2:], mode="nearest") + x = self.lay5(x) + x = self.gn5(x) + x = nn.functional.relu(x) + + x = self.out_lay(x) + return x + + +# Copied from transformers.models.detr.modeling_detr.DetrMHAttentionMap with Detr->ConditionalDetr +class ConditionalDetrMHAttentionMap(nn.Module): + """This is a 2D attention module, which only returns the attention softmax (no multiplication by value)""" + + def __init__(self, query_dim, hidden_dim, num_heads, dropout=0.0, bias=True, std=None): + super().__init__() + self.num_heads = num_heads + self.hidden_dim = hidden_dim + self.dropout = nn.Dropout(dropout) + + self.q_linear = nn.Linear(query_dim, hidden_dim, bias=bias) + self.k_linear = nn.Linear(query_dim, hidden_dim, bias=bias) + + self.normalize_fact = float(hidden_dim / self.num_heads) ** -0.5 + + def forward(self, q, k, mask: Optional[Tensor] = None): + q = self.q_linear(q) + k = nn.functional.conv2d(k, self.k_linear.weight.unsqueeze(-1).unsqueeze(-1), self.k_linear.bias) + queries_per_head = q.view(q.shape[0], q.shape[1], self.num_heads, self.hidden_dim // self.num_heads) + keys_per_head = k.view(k.shape[0], self.num_heads, self.hidden_dim // self.num_heads, k.shape[-2], k.shape[-1]) + weights = torch.einsum("bqnc,bnchw->bqnhw", queries_per_head * self.normalize_fact, keys_per_head) + + if mask is not None: + weights.masked_fill_(mask.unsqueeze(1).unsqueeze(1), torch.finfo(weights.dtype).min) + weights = nn.functional.softmax(weights.flatten(2), dim=-1).view(weights.size()) + weights = self.dropout(weights) + return weights + + +# Copied from transformers.models.detr.modeling_detr.dice_loss +def dice_loss(inputs, targets, num_boxes): + """ + Compute the DICE loss, similar to generalized IOU for masks + + Args: + inputs: A float tensor of arbitrary shape. + The predictions for each example. + targets: A float tensor with the same shape as inputs. Stores the binary + classification label for each element in inputs (0 for the negative class and 1 for the positive + class). + """ + inputs = inputs.sigmoid() + inputs = inputs.flatten(1) + numerator = 2 * (inputs * targets).sum(1) + denominator = inputs.sum(-1) + targets.sum(-1) + loss = 1 - (numerator + 1) / (denominator + 1) + return loss.sum() / num_boxes + + +# Copied from transformers.models.detr.modeling_detr.sigmoid_focal_loss +def sigmoid_focal_loss(inputs, targets, num_boxes, alpha: float = 0.25, gamma: float = 2): + """ + Loss used in RetinaNet for dense detection: https://arxiv.org/abs/1708.02002. + + Args: + inputs (`torch.FloatTensor` of arbitrary shape): + The predictions for each example. + targets (`torch.FloatTensor` with the same shape as `inputs`) + A tensor storing the binary classification label for each element in the `inputs` (0 for the negative class + and 1 for the positive class). + alpha (`float`, *optional*, defaults to `0.25`): + Optional weighting factor in the range (0,1) to balance positive vs. negative examples. + gamma (`int`, *optional*, defaults to `2`): + Exponent of the modulating factor (1 - p_t) to balance easy vs hard examples. + + Returns: + Loss tensor + """ + prob = inputs.sigmoid() + ce_loss = nn.functional.binary_cross_entropy_with_logits(inputs, targets, reduction="none") + # add modulating factor + p_t = prob * targets + (1 - prob) * (1 - targets) + loss = ce_loss * ((1 - p_t) ** gamma) + + if alpha >= 0: + alpha_t = alpha * targets + (1 - alpha) * (1 - targets) + loss = alpha_t * loss + + return loss.mean(1).sum() / num_boxes + + +class ConditionalDetrLoss(nn.Module): + """ + This class computes the losses for ConditionalDetrForObjectDetection/ConditionalDetrForSegmentation. The process + happens in two steps: 1) we compute hungarian assignment between ground truth boxes and the outputs of the model 2) + we supervise each pair of matched ground-truth / prediction (supervise class and box). + + Args: + matcher (`ConditionalDetrHungarianMatcher`): + Module able to compute a matching between targets and proposals. + num_classes (`int`): + Number of object categories, omitting the special no-object category. + focal_alpha (`float`): + Alpha parameter in focal loss. + losses (`List[str]`): + List of all the losses to be applied. See `get_loss` for a list of all available losses. + """ + + # Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrLoss.__init__ + def __init__(self, matcher, num_classes, focal_alpha, losses): + super().__init__() + self.matcher = matcher + self.num_classes = num_classes + self.focal_alpha = focal_alpha + self.losses = losses + + # Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrLoss.loss_labels + def loss_labels(self, outputs, targets, indices, num_boxes): + """ + Classification loss (Binary focal loss) targets dicts must contain the key "class_labels" containing a tensor + of dim [nb_target_boxes] + """ + if "logits" not in outputs: + raise KeyError("No logits were found in the outputs") + source_logits = outputs["logits"] + + idx = self._get_source_permutation_idx(indices) + target_classes_o = torch.cat([t["class_labels"][J] for t, (_, J) in zip(targets, indices)]) + target_classes = torch.full( + source_logits.shape[:2], self.num_classes, dtype=torch.int64, device=source_logits.device + ) + target_classes[idx] = target_classes_o + + target_classes_onehot = torch.zeros( + [source_logits.shape[0], source_logits.shape[1], source_logits.shape[2] + 1], + dtype=source_logits.dtype, + layout=source_logits.layout, + device=source_logits.device, + ) + target_classes_onehot.scatter_(2, target_classes.unsqueeze(-1), 1) + + target_classes_onehot = target_classes_onehot[:, :, :-1] + loss_ce = ( + sigmoid_focal_loss(source_logits, target_classes_onehot, num_boxes, alpha=self.focal_alpha, gamma=2) + * source_logits.shape[1] + ) + losses = {"loss_ce": loss_ce} + + return losses + + @torch.no_grad() + # Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrLoss.loss_cardinality + def loss_cardinality(self, outputs, targets, indices, num_boxes): + """ + Compute the cardinality error, i.e. the absolute error in the number of predicted non-empty boxes. + + This is not really a loss, it is intended for logging purposes only. It doesn't propagate gradients. + """ + logits = outputs["logits"] + device = logits.device + target_lengths = torch.as_tensor([len(v["class_labels"]) for v in targets], device=device) + # Count the number of predictions that are NOT "no-object" (which is the last class) + card_pred = (logits.argmax(-1) != logits.shape[-1] - 1).sum(1) + card_err = nn.functional.l1_loss(card_pred.float(), target_lengths.float()) + losses = {"cardinality_error": card_err} + return losses + + # Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrLoss.loss_boxes + def loss_boxes(self, outputs, targets, indices, num_boxes): + """ + Compute the losses related to the bounding boxes, the L1 regression loss and the GIoU loss. + + Targets dicts must contain the key "boxes" containing a tensor of dim [nb_target_boxes, 4]. The target boxes + are expected in format (center_x, center_y, w, h), normalized by the image size. + """ + if "pred_boxes" not in outputs: + raise KeyError("No predicted boxes found in outputs") + idx = self._get_source_permutation_idx(indices) + source_boxes = outputs["pred_boxes"][idx] + target_boxes = torch.cat([t["boxes"][i] for t, (_, i) in zip(targets, indices)], dim=0) + + loss_bbox = nn.functional.l1_loss(source_boxes, target_boxes, reduction="none") + + losses = {} + losses["loss_bbox"] = loss_bbox.sum() / num_boxes + + loss_giou = 1 - torch.diag( + generalized_box_iou(center_to_corners_format(source_boxes), center_to_corners_format(target_boxes)) + ) + losses["loss_giou"] = loss_giou.sum() / num_boxes + return losses + + # Copied from transformers.models.detr.modeling_detr.DetrLoss.loss_masks + def loss_masks(self, outputs, targets, indices, num_boxes): + """ + Compute the losses related to the masks: the focal loss and the dice loss. + + Targets dicts must contain the key "masks" containing a tensor of dim [nb_target_boxes, h, w]. + """ + if "pred_masks" not in outputs: + raise KeyError("No predicted masks found in outputs") + + source_idx = self._get_source_permutation_idx(indices) + target_idx = self._get_target_permutation_idx(indices) + source_masks = outputs["pred_masks"] + source_masks = source_masks[source_idx] + masks = [t["masks"] for t in targets] + # TODO use valid to mask invalid areas due to padding in loss + target_masks, valid = nested_tensor_from_tensor_list(masks).decompose() + target_masks = target_masks.to(source_masks) + target_masks = target_masks[target_idx] + + # upsample predictions to the target size + source_masks = nn.functional.interpolate( + source_masks[:, None], size=target_masks.shape[-2:], mode="bilinear", align_corners=False + ) + source_masks = source_masks[:, 0].flatten(1) + + target_masks = target_masks.flatten(1) + target_masks = target_masks.view(source_masks.shape) + losses = { + "loss_mask": sigmoid_focal_loss(source_masks, target_masks, num_boxes), + "loss_dice": dice_loss(source_masks, target_masks, num_boxes), + } + return losses + + # Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrLoss._get_source_permutation_idx + def _get_source_permutation_idx(self, indices): + # permute predictions following indices + batch_idx = torch.cat([torch.full_like(source, i) for i, (source, _) in enumerate(indices)]) + source_idx = torch.cat([source for (source, _) in indices]) + return batch_idx, source_idx + + # Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrLoss._get_target_permutation_idx + def _get_target_permutation_idx(self, indices): + # permute targets following indices + batch_idx = torch.cat([torch.full_like(target, i) for i, (_, target) in enumerate(indices)]) + target_idx = torch.cat([target for (_, target) in indices]) + return batch_idx, target_idx + + # Copied from transformers.models.detr.modeling_detr.DetrLoss.get_loss + def get_loss(self, loss, outputs, targets, indices, num_boxes): + loss_map = { + "labels": self.loss_labels, + "cardinality": self.loss_cardinality, + "boxes": self.loss_boxes, + "masks": self.loss_masks, + } + if loss not in loss_map: + raise ValueError(f"Loss {loss} not supported") + return loss_map[loss](outputs, targets, indices, num_boxes) + + # Copied from transformers.models.detr.modeling_detr.DetrLoss.forward + def forward(self, outputs, targets): + """ + This performs the loss computation. + + Args: + outputs (`dict`, *optional*): + Dictionary of tensors, see the output specification of the model for the format. + targets (`List[dict]`, *optional*): + List of dicts, such that `len(targets) == batch_size`. The expected keys in each dict depends on the + losses applied, see each loss' doc. + """ + outputs_without_aux = {k: v for k, v in outputs.items() if k != "auxiliary_outputs"} + + # Retrieve the matching between the outputs of the last layer and the targets + indices = self.matcher(outputs_without_aux, targets) + + # Compute the average number of target boxes across all nodes, for normalization purposes + num_boxes = sum(len(t["class_labels"]) for t in targets) + num_boxes = torch.as_tensor([num_boxes], dtype=torch.float, device=next(iter(outputs.values())).device) + + world_size = 1 + if is_accelerate_available(): + if PartialState._shared_state != {}: + num_boxes = reduce(num_boxes) + world_size = PartialState().num_processes + num_boxes = torch.clamp(num_boxes / world_size, min=1).item() + + # Compute all the requested losses + losses = {} + for loss in self.losses: + losses.update(self.get_loss(loss, outputs, targets, indices, num_boxes)) + + # In case of auxiliary losses, we repeat this process with the output of each intermediate layer. + if "auxiliary_outputs" in outputs: + for i, auxiliary_outputs in enumerate(outputs["auxiliary_outputs"]): + indices = self.matcher(auxiliary_outputs, targets) + for loss in self.losses: + if loss == "masks": + # Intermediate masks losses are too costly to compute, we ignore them. + continue + l_dict = self.get_loss(loss, auxiliary_outputs, targets, indices, num_boxes) + l_dict = {k + f"_{i}": v for k, v in l_dict.items()} + losses.update(l_dict) + + return losses + + +# Copied from transformers.models.detr.modeling_detr.DetrMLPPredictionHead with Detr->ConditionalDetr +class ConditionalDetrMLPPredictionHead(nn.Module): + """ + Very simple multi-layer perceptron (MLP, also called FFN), used to predict the normalized center coordinates, + height and width of a bounding box w.r.t. an image. + + Copied from https://github.com/facebookresearch/detr/blob/master/models/detr.py + + """ + + def __init__(self, input_dim, hidden_dim, output_dim, num_layers): + super().__init__() + self.num_layers = num_layers + h = [hidden_dim] * (num_layers - 1) + self.layers = nn.ModuleList(nn.Linear(n, k) for n, k in zip([input_dim] + h, h + [output_dim])) + + def forward(self, x): + for i, layer in enumerate(self.layers): + x = nn.functional.relu(layer(x)) if i < self.num_layers - 1 else layer(x) + return x + + +# Copied from transformers.models.deformable_detr.modeling_deformable_detr.DeformableDetrHungarianMatcher with DeformableDetr->ConditionalDetr +class ConditionalDetrHungarianMatcher(nn.Module): + """ + This class computes an assignment between the targets and the predictions of the network. + + For efficiency reasons, the targets don't include the no_object. Because of this, in general, there are more + predictions than targets. In this case, we do a 1-to-1 matching of the best predictions, while the others are + un-matched (and thus treated as non-objects). + + Args: + class_cost: + The relative weight of the classification error in the matching cost. + bbox_cost: + The relative weight of the L1 error of the bounding box coordinates in the matching cost. + giou_cost: + The relative weight of the giou loss of the bounding box in the matching cost. + """ + + def __init__(self, class_cost: float = 1, bbox_cost: float = 1, giou_cost: float = 1): + super().__init__() + requires_backends(self, ["scipy"]) + + self.class_cost = class_cost + self.bbox_cost = bbox_cost + self.giou_cost = giou_cost + if class_cost == 0 and bbox_cost == 0 and giou_cost == 0: + raise ValueError("All costs of the Matcher can't be 0") + + @torch.no_grad() + def forward(self, outputs, targets): + """ + Args: + outputs (`dict`): + A dictionary that contains at least these entries: + * "logits": Tensor of dim [batch_size, num_queries, num_classes] with the classification logits + * "pred_boxes": Tensor of dim [batch_size, num_queries, 4] with the predicted box coordinates. + targets (`List[dict]`): + A list of targets (len(targets) = batch_size), where each target is a dict containing: + * "class_labels": Tensor of dim [num_target_boxes] (where num_target_boxes is the number of + ground-truth + objects in the target) containing the class labels + * "boxes": Tensor of dim [num_target_boxes, 4] containing the target box coordinates. + + Returns: + `List[Tuple]`: A list of size `batch_size`, containing tuples of (index_i, index_j) where: + - index_i is the indices of the selected predictions (in order) + - index_j is the indices of the corresponding selected targets (in order) + For each batch element, it holds: len(index_i) = len(index_j) = min(num_queries, num_target_boxes) + """ + batch_size, num_queries = outputs["logits"].shape[:2] + + # We flatten to compute the cost matrices in a batch + out_prob = outputs["logits"].flatten(0, 1).sigmoid() # [batch_size * num_queries, num_classes] + out_bbox = outputs["pred_boxes"].flatten(0, 1) # [batch_size * num_queries, 4] + + # Also concat the target labels and boxes + target_ids = torch.cat([v["class_labels"] for v in targets]) + target_bbox = torch.cat([v["boxes"] for v in targets]) + + # Compute the classification cost. + alpha = 0.25 + gamma = 2.0 + neg_cost_class = (1 - alpha) * (out_prob**gamma) * (-(1 - out_prob + 1e-8).log()) + pos_cost_class = alpha * ((1 - out_prob) ** gamma) * (-(out_prob + 1e-8).log()) + class_cost = pos_cost_class[:, target_ids] - neg_cost_class[:, target_ids] + + # Compute the L1 cost between boxes + bbox_cost = torch.cdist(out_bbox, target_bbox, p=1) + + # Compute the giou cost between boxes + giou_cost = -generalized_box_iou(center_to_corners_format(out_bbox), center_to_corners_format(target_bbox)) + + # Final cost matrix + cost_matrix = self.bbox_cost * bbox_cost + self.class_cost * class_cost + self.giou_cost * giou_cost + cost_matrix = cost_matrix.view(batch_size, num_queries, -1).cpu() + + sizes = [len(v["boxes"]) for v in targets] + indices = [linear_sum_assignment(c[i]) for i, c in enumerate(cost_matrix.split(sizes, -1))] + return [(torch.as_tensor(i, dtype=torch.int64), torch.as_tensor(j, dtype=torch.int64)) for i, j in indices] + + +# Copied from transformers.models.detr.modeling_detr._upcast +def _upcast(t: Tensor) -> Tensor: + # Protects from numerical overflows in multiplications by upcasting to the equivalent higher type + if t.is_floating_point(): + return t if t.dtype in (torch.float32, torch.float64) else t.float() + else: + return t if t.dtype in (torch.int32, torch.int64) else t.int() + + +# Copied from transformers.models.detr.modeling_detr.box_area +def box_area(boxes: Tensor) -> Tensor: + """ + Computes the area of a set of bounding boxes, which are specified by its (x1, y1, x2, y2) coordinates. + + Args: + boxes (`torch.FloatTensor` of shape `(number_of_boxes, 4)`): + Boxes for which the area will be computed. They are expected to be in (x1, y1, x2, y2) format with `0 <= x1 + < x2` and `0 <= y1 < y2`. + + Returns: + `torch.FloatTensor`: a tensor containing the area for each box. + """ + boxes = _upcast(boxes) + return (boxes[:, 2] - boxes[:, 0]) * (boxes[:, 3] - boxes[:, 1]) + + +# Copied from transformers.models.detr.modeling_detr.box_iou +def box_iou(boxes1, boxes2): + area1 = box_area(boxes1) + area2 = box_area(boxes2) + + left_top = torch.max(boxes1[:, None, :2], boxes2[:, :2]) # [N,M,2] + right_bottom = torch.min(boxes1[:, None, 2:], boxes2[:, 2:]) # [N,M,2] + + width_height = (right_bottom - left_top).clamp(min=0) # [N,M,2] + inter = width_height[:, :, 0] * width_height[:, :, 1] # [N,M] + + union = area1[:, None] + area2 - inter + + iou = inter / union + return iou, union + + +# Copied from transformers.models.detr.modeling_detr.generalized_box_iou +def generalized_box_iou(boxes1, boxes2): + """ + Generalized IoU from https://giou.stanford.edu/. The boxes should be in [x0, y0, x1, y1] (corner) format. + + Returns: + `torch.FloatTensor`: a [N, M] pairwise matrix, where N = len(boxes1) and M = len(boxes2) + """ + # degenerate boxes gives inf / nan results + # so do an early check + if not (boxes1[:, 2:] >= boxes1[:, :2]).all(): + raise ValueError(f"boxes1 must be in [x0, y0, x1, y1] (corner) format, but got {boxes1}") + if not (boxes2[:, 2:] >= boxes2[:, :2]).all(): + raise ValueError(f"boxes2 must be in [x0, y0, x1, y1] (corner) format, but got {boxes2}") + iou, union = box_iou(boxes1, boxes2) + + top_left = torch.min(boxes1[:, None, :2], boxes2[:, :2]) + bottom_right = torch.max(boxes1[:, None, 2:], boxes2[:, 2:]) + + width_height = (bottom_right - top_left).clamp(min=0) # [N,M,2] + area = width_height[:, :, 0] * width_height[:, :, 1] + + return iou - (area - union) / area + + +# Copied from transformers.models.detr.modeling_detr._max_by_axis +def _max_by_axis(the_list): + # type: (List[List[int]]) -> List[int] + maxes = the_list[0] + for sublist in the_list[1:]: + for index, item in enumerate(sublist): + maxes[index] = max(maxes[index], item) + return maxes + + +# Copied from transformers.models.detr.modeling_detr.NestedTensor +class NestedTensor(object): + def __init__(self, tensors, mask: Optional[Tensor]): + self.tensors = tensors + self.mask = mask + + def to(self, device): + cast_tensor = self.tensors.to(device) + mask = self.mask + if mask is not None: + cast_mask = mask.to(device) + else: + cast_mask = None + return NestedTensor(cast_tensor, cast_mask) + + def decompose(self): + return self.tensors, self.mask + + def __repr__(self): + return str(self.tensors) + + +# Copied from transformers.models.detr.modeling_detr.nested_tensor_from_tensor_list +def nested_tensor_from_tensor_list(tensor_list: List[Tensor]): + if tensor_list[0].ndim == 3: + max_size = _max_by_axis([list(img.shape) for img in tensor_list]) + batch_shape = [len(tensor_list)] + max_size + batch_size, num_channels, height, width = batch_shape + dtype = tensor_list[0].dtype + device = tensor_list[0].device + tensor = torch.zeros(batch_shape, dtype=dtype, device=device) + mask = torch.ones((batch_size, height, width), dtype=torch.bool, device=device) + for img, pad_img, m in zip(tensor_list, tensor, mask): + pad_img[: img.shape[0], : img.shape[1], : img.shape[2]].copy_(img) + m[: img.shape[1], : img.shape[2]] = False + else: + raise ValueError("Only 3-dimensional tensors are supported") + return NestedTensor(tensor, mask) diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__init__.py b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..bf04db7676c8b6d3871a8d56b330f19ddea7c6a7 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__init__.py @@ -0,0 +1,62 @@ +# Copyright 2022 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...file_utils import _LazyModule, is_torch_available +from ...utils import OptionalDependencyNotAvailable + + +_import_structure = { + "configuration_gpt_neox_japanese": ["GPT_NEOX_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP", "GPTNeoXJapaneseConfig"], + "tokenization_gpt_neox_japanese": ["GPTNeoXJapaneseTokenizer"], +} + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_gpt_neox_japanese"] = [ + "GPT_NEOX_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST", + "GPTNeoXJapaneseForCausalLM", + "GPTNeoXJapaneseLayer", + "GPTNeoXJapaneseModel", + "GPTNeoXJapanesePreTrainedModel", + ] + + +if TYPE_CHECKING: + from .configuration_gpt_neox_japanese import GPT_NEOX_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP, GPTNeoXJapaneseConfig + from .tokenization_gpt_neox_japanese import GPTNeoXJapaneseTokenizer + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_gpt_neox_japanese import ( + GPT_NEOX_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST, + GPTNeoXJapaneseForCausalLM, + GPTNeoXJapaneseLayer, + GPTNeoXJapaneseModel, + GPTNeoXJapanesePreTrainedModel, + ) + + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/__init__.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..3c1584be03a44cf7dac1ba8b76302e4dfbdb6438 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/__init__.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/configuration_gpt_neox_japanese.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/configuration_gpt_neox_japanese.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..a424712a2788a0dd2e144950494b5da1a5a2c00c Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/configuration_gpt_neox_japanese.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/modeling_gpt_neox_japanese.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/modeling_gpt_neox_japanese.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..cff96a0e5d817f384d23172f9e701a1cfa85ae6d Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/modeling_gpt_neox_japanese.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/tokenization_gpt_neox_japanese.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/tokenization_gpt_neox_japanese.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..8d26071f89d4cfbd31eeb71dcbfc9690339b5370 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/__pycache__/tokenization_gpt_neox_japanese.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/configuration_gpt_neox_japanese.py b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/configuration_gpt_neox_japanese.py new file mode 100644 index 0000000000000000000000000000000000000000..8ee73257b64c7c1a93f975af7b61f707decb9cd9 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/configuration_gpt_neox_japanese.py @@ -0,0 +1,120 @@ +# coding=utf-8 +# Copyright 2022 ABEJA, Inc. and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" GPTNeoX Japanese model configuration""" + +from ...configuration_utils import PretrainedConfig +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +from ..deprecated._archive_maps import GPT_NEOX_JAPANESE_PRETRAINED_CONFIG_ARCHIVE_MAP # noqa: F401, E402 + + +class GPTNeoXJapaneseConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`GPTNeoXModelJapanese`]. It is used to instantiate + a GPTNeoX model according to the specified arguments, defining the model architecture. Instantiating a + configuration with the defaults will yield a similar configuration to that of the GPTNeoXJapanese + [abeja/gpt-neox-japanese-2.7b](https://huggingface.co/abeja/gpt-neox-japanese-2.7b) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. Default configs is set as 2.7B model + + Args: + vocab_size (`int`, *optional*, defaults to 32000): + Vocabulary size of the GPTNeoXJapanese model. Defines the number of different tokens that can be + represented by the `inputs_ids` passed when calling [`GPTNeoXJapanese`]. + hidden_size (`int`, *optional*, defaults to 2560): + Dimension of the encoder layers and the pooler layer. + num_hidden_layers (`int`, *optional*, defaults to 32): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 32): + Number of attention heads for each attention layer in the Transformer encoder. + intermediate_multiple_size (`int`, *optional*, defaults to 4): + Dimension of the "intermediate" layer in the Transformer encoder is calculated by hidden_size * + intermediate_multiple_size. + hidden_act (`str` or `function`, *optional*, defaults to `"gelu"`): + The non-linear activation function (function or string) in the encoder and pooler. + rotary_pct (`float`, *optional*, defaults to 1.00): + percentage of hidden dimensions to allocate to rotary embeddings + rotary_emb_base (`int`, *optional*, defaults to 10000) + base for computing rotary embeddings frequency + max_position_embeddings (`int`, *optional*, defaults to 2048): + The maximum sequence length that this model might ever be used with. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + layer_norm_eps (`float`, *optional*, defaults to 1e-5): + The epsilon used by the layer normalization layers. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last key/values attentions (not used by all models). Only + relevant if `config.is_decoder=True`. + attention_dropout (`float`, *optional*, defaults to 0.1): + The dropout ratio for the attention. + hidden_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the hidden layer. + Example: + + ```python + >>> from transformers import GPTNeoXJapaneseConfig, GPTNeoXJapaneseModel + + >>> # Initializing a GPTNeoXJapanese gpt-neox-japanese-2.7b style configuration + >>> configuration = GPTNeoXJapaneseConfig() + + >>> # Initializing a model (with random weights) from the gpt-neox-japanese-2.7b style configuration + >>> model = GPTNeoXJapaneseModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "gpt_neox_japanese" + + def __init__( + self, + vocab_size=32000, + hidden_size=2560, + num_hidden_layers=32, + num_attention_heads=32, + intermediate_multiple_size=4, + hidden_act="gelu", + rotary_pct=1.00, + rotary_emb_base=10000, + max_position_embeddings=2048, + initializer_range=0.02, + layer_norm_eps=1e-5, + use_cache=True, + bos_token_id=31996, + eos_token_id=31999, + attention_dropout=0.1, + hidden_dropout=0.0, + **kwargs, + ): + super().__init__(bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs) + self.vocab_size = vocab_size + self.max_position_embeddings = max_position_embeddings + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.intermediate_multiple_size = intermediate_multiple_size + self.hidden_act = hidden_act + self.rotary_pct = rotary_pct + self.rotary_emb_base = rotary_emb_base + self.initializer_range = initializer_range + self.layer_norm_eps = layer_norm_eps + self.use_cache = use_cache + self.attention_dropout = attention_dropout + self.hidden_dropout = hidden_dropout diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/modeling_gpt_neox_japanese.py b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/modeling_gpt_neox_japanese.py new file mode 100644 index 0000000000000000000000000000000000000000..9fdff2c838700639bb1055a584dbe0a06dadab30 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/modeling_gpt_neox_japanese.py @@ -0,0 +1,729 @@ +# coding=utf-8 +# Copyright 2022 ABEJA, Inc. and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" PyTorch GPTNeoX model.""" + +from typing import Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import Tensor, nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...file_utils import add_start_docstrings, add_start_docstrings_to_model_forward, replace_return_docstrings +from ...modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast +from ...modeling_utils import PreTrainedModel +from ...utils import logging +from .configuration_gpt_neox_japanese import GPTNeoXJapaneseConfig + + +logger = logging.get_logger(__name__) + +_CHECKPOINT_FOR_DOC = "abeja/gpt-neox-japanese-2.7b" +_CONFIG_FOR_DOC = "GPTNeoXJapaneseConfig" + + +from ..deprecated._archive_maps import GPT_NEOX_JAPANESE_PRETRAINED_MODEL_ARCHIVE_LIST # noqa: F401, E402 + + +class GPTNeoXJapanesePreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = GPTNeoXJapaneseConfig + base_model_prefix = "gpt_neox_japanese" + _no_split_modules = ["GPTNeoXJapaneseLayer"] + _skip_keys_device_placement = "past_key_values" + + def _init_weights(self, module): + """Initialize the weights""" + if isinstance(module, nn.Linear): + module.weight.data.normal_(mean=0.0, std=self.config.initializer_range) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=self.config.initializer_range) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + elif isinstance(module, nn.LayerNorm): + module.bias.data.zero_() + module.weight.data.fill_(1.0) + + +class GPTNeoXJapaneseAttention(nn.Module): + def __init__(self, config, use_bias=False): + super().__init__() + self.num_attention_heads = config.num_attention_heads + self.hidden_size = config.hidden_size + self.head_size = self.hidden_size // self.num_attention_heads + + self.rotary_ndims = int(self.head_size * config.rotary_pct) + self.rotary_emb = RotaryEmbedding( + self.rotary_ndims, config.max_position_embeddings, base=config.rotary_emb_base + ) + self.max_positions = config.max_position_embeddings + self.attention_dropout = nn.Dropout(config.attention_dropout) + self.norm_factor = torch.sqrt(torch.tensor(self.head_size, dtype=torch.float32)).to(torch.get_default_dtype()) + + self.query_key_value = nn.Linear(config.hidden_size, 3 * config.hidden_size, bias=False) + self.dense = nn.Linear(config.hidden_size, config.hidden_size, bias=False) + # Activate bias if the last layer + self.use_bias = use_bias + self.dense_bias = nn.Parameter(torch.zeros(config.hidden_size)) if use_bias else None + + def forward( + self, + hidden_states, + attention_mask, + head_mask=None, + layer_past=None, + use_cache=False, + output_attentions=False, + ): + has_layer_past = layer_past is not None and layer_past[0].numel() > 0 + + # Compute QKV + # Attention heads [batch, seq_len, hidden_size] + # --> [batch, seq_len, (np * 3 * head_size)] + qkv = self.query_key_value(hidden_states) + + # [batch, seq_len, (num_heads * 3 * head_size)] + # --> [batch, seq_len, num_heads, 3 * head_size] + new_qkv_shape = qkv.size()[:-1] + (self.num_attention_heads, 3 * self.head_size) + qkv = qkv.view(*new_qkv_shape) + + # [batch, seq_len, num_attention_heads, 3 * head_size] --> 3 [batch, num_attention_heads, seq_len, head_size] + query = qkv[..., : self.head_size].permute(0, 2, 1, 3) + key = qkv[..., self.head_size : 2 * self.head_size].permute(0, 2, 1, 3) + value = qkv[..., 2 * self.head_size :].permute(0, 2, 1, 3) + + # Compute rotary embeddings on rotary_ndims + query_rot = query[..., : self.rotary_ndims] + query_pass = query[..., self.rotary_ndims :] + key_rot = key[..., : self.rotary_ndims] + key_pass = key[..., self.rotary_ndims :] + + # Compute token offset for rotary embeddings (when decoding) + seq_len = key.shape[-2] + offset = 0 + if has_layer_past: + offset = layer_past[0].shape[-2] + seq_len += offset + cos, sin = self.rotary_emb(value, seq_len=seq_len) + query, key = apply_rotary_pos_emb(query_rot, key_rot, cos, sin, offset=offset) + query = torch.cat((query, query_pass), dim=-1) + key = torch.cat((key, key_pass), dim=-1) + + # Cache QKV values + if has_layer_past: + past_key = layer_past[0] + past_value = layer_past[1] + key = torch.cat((past_key, key), dim=-2) + value = torch.cat((past_value, value), dim=-2) + present = (key, value) if use_cache else None + + # Compute attention + attn_output, attn_weights = self._attn(query, key, value, attention_mask, head_mask) + + # Reshape outputs + attn_output = self._merge_heads(attn_output, self.num_attention_heads, self.head_size) + attn_output = self.dense(attn_output) + + outputs = (attn_output, present) + if output_attentions: + outputs += (attn_weights,) + + return outputs, self.dense_bias + + @classmethod + def _split_heads(cls, tensor, num_attention_heads, attn_head_size): + """ + Splits hidden dim into attn_head_size and num_attention_heads + """ + # tensor: [bs, seq_len, hidden_size] + new_shape = tensor.size()[:-1] + (num_attention_heads, attn_head_size) + # -> [bs, seq_len, num_attention_heads, attn_head_size] + tensor = tensor.view(new_shape) + # -> [bs, num_attention_heads, seq_len, attn_head_size] + tensor = tensor.permute(0, 2, 1, 3) + return tensor + + @classmethod + def _merge_heads(cls, tensor, num_attention_heads, attn_head_size): + """ + Merges attn_head_size dim and num_attn_heads dim into hidden dim + """ + # tensor [bs, num_attention_heads, seq_len, attn_head_size] + tensor = tensor.permute(0, 2, 1, 3).contiguous() + # -> [bs, seq_len, num_attention_heads, attn_head_size] + tensor = tensor.view(tensor.size(0), tensor.size(1), num_attention_heads * attn_head_size) + # -> [bs, seq_len, hidden_size] + return tensor + + def _create_causal_mask(self, key_length, query_length): + causal_mask = torch.tril( + torch.ones((self.max_positions, self.max_positions), dtype=torch.bool).view( + 1, 1, self.max_positions, self.max_positions + ) + ) + return causal_mask[:, :, key_length - query_length : key_length, :key_length] + + def _attn(self, query, key, value, attention_mask=None, head_mask=None): + # q, k, v: [bs, num_attention_heads, seq_len, attn_head_size] + # compute causal mask from causal mask buffer + batch_size, num_attention_heads, query_length, attn_head_size = query.size() + key_length = key.size(-2) + + causal_mask = self._create_causal_mask(key_length, query_length) + + query = query.view(batch_size * num_attention_heads, query_length, attn_head_size) + key = key.view(batch_size * num_attention_heads, key_length, attn_head_size) + attn_scores = torch.zeros( + batch_size * num_attention_heads, + query_length, + key_length, + dtype=query.dtype, + device=key.device, + ) + attn_scores = torch.baddbmm( + attn_scores, + query, + key.transpose(1, 2), + beta=1.0, + alpha=(torch.tensor(1.0, dtype=self.norm_factor.dtype, device=self.norm_factor.device) / self.norm_factor), + ) + attn_scores = attn_scores.view(batch_size, num_attention_heads, query_length, key_length) + + mask_value = torch.finfo(attn_scores.dtype).min + # Need to be a tensor, otherwise we get error: `RuntimeError: expected scalar type float but found double`. + # Need to be on the same device, otherwise `RuntimeError: ..., x and y to be on the same device` + mask_value = torch.tensor(mask_value, dtype=attn_scores.dtype).to(attn_scores.device) + causal_mask = causal_mask.to(attn_scores.device) + attn_scores = torch.where(causal_mask, attn_scores, mask_value) + + if attention_mask is not None: + # Apply the attention mask + attn_scores = attn_scores + attention_mask + + attn_weights = nn.functional.softmax(attn_scores, dim=-1) + attn_weights = self.attention_dropout(attn_weights) + attn_weights = attn_weights.to(value.dtype) + + # Mask heads if we want to + if head_mask is not None: + attn_weights = attn_weights * head_mask + + attn_output = torch.matmul(attn_weights, value) + return attn_output, attn_weights + + +# Copied from transformers.models.gpt_neox.modeling_gpt_neox.GPTNeoXRotaryEmbedding with GPTNeoXRotaryEmbedding->RotaryEmbedding +class RotaryEmbedding(nn.Module): + # Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding.__init__ + def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None): + super().__init__() + + self.dim = dim + self.max_position_embeddings = max_position_embeddings + self.base = base + inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(device) / self.dim)) + self.register_buffer("inv_freq", inv_freq, persistent=False) + + # Build here to make `torch.jit.trace` work. + self._set_cos_sin_cache( + seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.get_default_dtype() + ) + + def _set_cos_sin_cache(self, seq_len, device, dtype): + self.max_seq_len_cached = seq_len + t = torch.arange(self.max_seq_len_cached, device=device, dtype=torch.int64).type_as(self.inv_freq) + + freqs = torch.outer(t, self.inv_freq) + # Different from paper, but it uses a different permutation in order to obtain the same calculation + emb = torch.cat((freqs, freqs), dim=-1) + self.register_buffer("cos_cached", emb.cos(), persistent=False) + self.register_buffer("sin_cached", emb.sin(), persistent=False) + + def forward(self, x, seq_len=None): + # x: [bs, num_attention_heads, seq_len, head_size] + if seq_len > self.max_seq_len_cached: + self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=x.dtype) + + return ( + self.cos_cached[:seq_len], + self.sin_cached[:seq_len], + ) + + +def rotate_half(x): + """Rotates half the hidden dims of the input.""" + x1 = x[..., : x.shape[-1] // 2] + x2 = x[..., x.shape[-1] // 2 :] + return torch.cat((-x2, x1), dim=-1) + + +def apply_rotary_pos_emb(q, k, cos, sin, offset: int = 0): + cos = cos[..., offset : q.shape[-2] + offset, :] + sin = sin[..., offset : q.shape[-2] + offset, :] + q_embed = (q * cos) + (rotate_half(q) * sin) + k_embed = (k * cos) + (rotate_half(k) * sin) + return q_embed, k_embed + + +def bias_dropout_add(x: Tensor, bias: Tensor, residual: Optional[Tensor], prob: float, training: bool) -> Tensor: + """add bias to x, apply dropout and residual connection + + Args: + x (Tensor): main path of output + bias (Tensor): None or attn_bias of the last attention layer + residual (Optional[Tensor]): residual value + prob (float): dropout probability + training (bool): whether in training mode or not + + Returns: + Tensor: dropout(x + bias) + residual + """ + if bias is not None: + x = x + bias + out = torch.nn.functional.dropout(x, p=prob, training=training) + if residual is not None: + out = residual + out + return out + + +class GPTNeoXJapaneseMLP(nn.Module): + def __init__(self, config): + super().__init__() + intermediate_size = int(config.hidden_size * config.intermediate_multiple_size) + self.dense_h_to_4h = nn.Linear(config.hidden_size, intermediate_size, bias=False) + # Project back to h. + self.dense_4h_to_h = nn.Linear(intermediate_size, config.hidden_size, bias=False) + self.act = ACT2FN[config.hidden_act] + + def forward(self, hidden_states): + intermediate = self.dense_h_to_4h(hidden_states) + intermediate = self.act(intermediate) + output = self.dense_4h_to_h(intermediate) + return output + + +class GPTNeoXJapaneseLayer(nn.Module): + def __init__(self, config, layer_number): + super().__init__() + self.layer_number = layer_number + self.input_layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + self.post_attention_layernorm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + # activate bias only last layer + self.attention = GPTNeoXJapaneseAttention(config=config, use_bias=layer_number == config.num_hidden_layers - 1) + self.mlp = GPTNeoXJapaneseMLP(config) + self.hidden_dropout = config.hidden_dropout + + def forward( + self, + hidden_states, + attention_mask=None, + head_mask=None, + use_cache=False, + layer_past=None, + output_attentions=False, + ): + residual = hidden_states + ln_out = self.input_layernorm(hidden_states) + attention_layer_outputs, attn_bias = self.attention( + ln_out, + attention_mask=attention_mask, + layer_past=layer_past, + head_mask=head_mask, + use_cache=use_cache, + output_attentions=output_attentions, + ) + attn_output = attention_layer_outputs[0] # output_attn: a, present, (attentions) + outputs = attention_layer_outputs[1:] + + # attn_output = (atten_output + bias) + residual + attn_output = bias_dropout_add( + attn_output, + bias=attn_bias.expand_as(residual) if attn_bias is not None else attn_bias, + residual=residual, + prob=self.hidden_dropout, + training=self.training, + ) + mlp_output = self.mlp(self.post_attention_layernorm(attn_output)) + + # attn_output = (mlp_output + mlp_bias) + atten_output + attn_output = bias_dropout_add( + mlp_output, bias=None, residual=attn_output, prob=self.hidden_dropout, training=self.training + ) + + if use_cache: + outputs = (attn_output,) + outputs + else: + outputs = (attn_output,) + outputs[1:] + + return outputs # hidden_states, present, (attentions) + + +GPT_NEOX_JAPANESE_START_DOCSTRING = r""" + This model is a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) sub-class. Use + it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage and + behavior. + + Parameters: + config ([`~GPTNeoXJapaneseConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +GPT_NEOX_JAPANESE_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `({0})`): + Indices of input sequence tokens in the vocabulary. + + Indices can be obtained using [`AutoTokenizer`]. + + attention_mask (`torch.FloatTensor` of shape `({0})`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + token_type_ids (`torch.LongTensor` of shape `({0})`, *optional*): + Segment token indices to indicate first and second portions of the inputs. Indices are selected in `[0, + 1]`: + + - 0 corresponds to a *sentence A* token, + - 1 corresponds to a *sentence B* token. + + position_ids (`torch.LongTensor` of shape `({0})`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.max_position_embeddings - 1]`. + + head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + inputs_embeds (`torch.FloatTensor` of shape `({0}, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert *input_ids* indices into associated vectors than the + model's internal embedding lookup matrix. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~file_utils.ModelOutput`] instead of a plain tuple. +""" + + +@add_start_docstrings( + "The bare GPTNeoXJapanese Model transformer outputting raw hidden-states without any specific head on top.", + GPT_NEOX_JAPANESE_START_DOCSTRING, +) +class GPTNeoXJapaneseModel(GPTNeoXJapanesePreTrainedModel): + def __init__(self, config): + super().__init__(config) + self.config = config + + self.embed_in = nn.Embedding(config.vocab_size, config.hidden_size) + self.layers = nn.ModuleList( + [GPTNeoXJapaneseLayer(config=config, layer_number=i) for i in range(config.num_hidden_layers)] + ) + self.final_layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps) + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.embed_in + + def set_input_embeddings(self, value): + self.embed_in = value + + @add_start_docstrings_to_model_forward(GPT_NEOX_JAPANESE_INPUTS_DOCSTRING.format("batch_size, sequence_length")) + @replace_return_docstrings(output_type=BaseModelOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutputWithPast]: + r""" + past_key_values (`tuple(tuple(torch.FloatTensor))` of length `config.n_layers` with each tuple having 4 tensors of shape `(batch_size, num_heads, sequence_length - 1, embed_size_per_head)`): + Contains precomputed key and value hidden states of the attention blocks. Can be used to speed up decoding. + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + + Returns: + + Example: + + ```python + >>> from transformers import AutoTokenizer, GPTNeoXJapaneseModel + >>> import torch + + >>> tokenizer = AutoTokenizer.from_pretrained("abeja/gpt-neox-japanese-2.7b") + >>> model = GPTNeoXJapaneseModel.from_pretrained("abeja/gpt-neox-japanese-2.7b") + + >>> inputs = tokenizer("日本語のGPT-neoxがHugging Faceで使えます😀", return_tensors="pt") + >>> outputs = model(**inputs) + + >>> last_hidden_states = outputs.last_hidden_state + ``` + """ + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + use_cache = use_cache if use_cache is not None else self.config.use_cache + + if input_ids is not None and inputs_embeds is not None: + raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time") + elif input_ids is not None: + self.warn_if_padding_and_no_attention_mask(input_ids, attention_mask) + input_shape = input_ids.size() + elif inputs_embeds is not None: + input_shape = inputs_embeds.size()[:-1] + else: + raise ValueError("You have to specify either input_ids or inputs_embeds") + + batch_size, seq_length = input_shape + + if past_key_values is None: + past_key_values = tuple([None] * self.config.num_hidden_layers) + + # Attention mask. + if attention_mask is not None: + if not batch_size > 0: + raise ValueError("batch_size has to be defined and > 0") + attention_mask = attention_mask.view(batch_size, -1) + # We create a 3D attention mask from a 2D tensor mask. + # Sizes are [batch_size, 1, 1, to_seq_length] + # So we can broadcast to [batch_size, num_heads, from_seq_length, to_seq_length] + # this attention mask is more simple than the triangular masking of causal attention + # used in OpenAI GPT, we just need to prepare the broadcast dimension here. + attention_mask = attention_mask[:, None, None, :] + + # Since attention_mask is 1.0 for positions we want to attend and 0.0 for + # masked positions, this operation will create a tensor which is 0.0 for + # positions we want to attend and -10000.0 for masked positions. + # Since we are adding it to the raw scores before the softmax, this is + # effectively the same as removing these entirely. + attention_mask = attention_mask.to(dtype=self.dtype) # fp16 compatibility + attention_mask = (1.0 - attention_mask) * torch.finfo(self.dtype).min + + # Prepare head mask if needed + # 1.0 in head_mask indicate we keep the head + # attention_probs has shape bsz x n_heads x N x N + # input head_mask has shape [num_heads] or [num_hidden_layers x num_heads] + # and head_mask is converted to shape [num_hidden_layers x batch x num_heads x seq_length x seq_length] + head_mask = self.get_head_mask(head_mask, self.config.num_hidden_layers) + + if inputs_embeds is None: + inputs_embeds = self.embed_in(input_ids) + + hidden_states = inputs_embeds + + presents = () if use_cache else None + all_attentions = () if output_attentions else None + all_hidden_states = () if output_hidden_states else None + for i, (layer, layer_past) in enumerate(zip(self.layers, past_key_values)): + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + outputs = layer( + hidden_states, + attention_mask=attention_mask, + head_mask=head_mask[i], + layer_past=layer_past, + use_cache=use_cache, + output_attentions=output_attentions, + ) + hidden_states = outputs[0] + if use_cache is True: + presents = presents + (outputs[1],) + if output_attentions: + all_attentions = all_attentions + (outputs[2 if use_cache else 1],) + + hidden_states = self.final_layer_norm(hidden_states) + # Add last hidden state + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple(v for v in [hidden_states, presents, all_hidden_states, all_attentions] if v is not None) + + return BaseModelOutputWithPast( + last_hidden_state=hidden_states, + past_key_values=presents, + hidden_states=all_hidden_states, + attentions=all_attentions, + ) + + +@add_start_docstrings( + """GPTNeoXJapanese Model with a `language modeling` head on top for Classifier Model fine-tuning.""", + GPT_NEOX_JAPANESE_START_DOCSTRING, +) +class GPTNeoXJapaneseForCausalLM(GPTNeoXJapanesePreTrainedModel): + _tied_weights_keys = ["embed_out.weight"] + + def __init__(self, config): + super().__init__(config) + self.config = config + + self.gpt_neox_japanese = GPTNeoXJapaneseModel(config) + self.embed_out = nn.Linear(config.hidden_size, config.vocab_size, bias=False) + + # Initialize weights and apply final processing + self.post_init() + + def get_output_embeddings(self): + return self.embed_out + + def set_output_embeddings(self, new_embeddings): + self.embed_out = new_embeddings + + @add_start_docstrings_to_model_forward(GPT_NEOX_JAPANESE_INPUTS_DOCSTRING.format("batch_size, sequence_length")) + @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, CausalLMOutputWithPast]: + r""" + past_key_values (`tuple(tuple(torch.FloatTensor))`, *optional*, returned when `use_cache=True` is passed or when `config.use_cache=True`): + Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of shape + `(batch_size, num_heads, sequence_length, embed_size_per_head)`) and 2 additional tensors of shape + `(batch_size, num_heads, encoder_sequence_length, embed_size_per_head)`. The two additional tensors are + only required when the model is used as a decoder in a Sequence to Sequence model. + + Contains pre-computed hidden-states (key and values in the self-attention blocks that can be used (see + `past_key_values` input) to speed up sequential decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the left-to-right language modeling loss (next word prediction). Indices should be in + `[-100, 0, ..., config.vocab_size]` (see `input_ids` docstring) Tokens with indices set to `-100` are + ignored (masked), the loss is only computed for the tokens with labels n `[0, ..., config.vocab_size]`. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + + Returns: + + Example: + + ```python + >>> from transformers import AutoTokenizer, GPTNeoXJapaneseForCausalLM, GPTNeoXJapaneseConfig + >>> import torch + + >>> tokenizer = AutoTokenizer.from_pretrained("abeja/gpt-neox-japanese-2.7b") + >>> config = GPTNeoXJapaneseConfig.from_pretrained("abeja/gpt-neox-japanese-2.7b") + >>> config.is_decoder = True + >>> model = GPTNeoXJapaneseForCausalLM.from_pretrained("abeja/gpt-neox-japanese-2.7b", config=config) + + >>> inputs = tokenizer("日本語のGPT-neoxがHugging Faceで使えます😀", return_tensors="pt") + >>> outputs = model(**inputs) + + >>> prediction_logits = outputs.logits + ``` + """ + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + outputs = self.gpt_neox_japanese( + input_ids, + attention_mask=attention_mask, + head_mask=head_mask, + inputs_embeds=inputs_embeds, + past_key_values=past_key_values, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + hidden_states = outputs[0] + lm_logits = self.embed_out(hidden_states) + + lm_loss = None + if labels is not None: + # move labels to correct device to enable model parallelism + labels = labels.to(lm_logits.device) + + # we are doing next-token prediction; shift prediction scores and input ids by one + shift_logits = lm_logits[:, :-1, :].contiguous() + labels = labels[:, 1:].contiguous() + loss_fct = CrossEntropyLoss() + lm_loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), labels.view(-1)) + + if not return_dict: + output = (lm_logits,) + outputs[1:] + return ((lm_loss,) + output) if lm_loss is not None else output + + return CausalLMOutputWithPast( + loss=lm_loss, + logits=lm_logits, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) + + def prepare_inputs_for_generation(self, input_ids, past_key_values=None, attention_mask=None, **model_kwargs): + input_shape = input_ids.shape + + # if model is used as a decoder in encoder-decoder model, the decoder attention mask is created on the fly + if attention_mask is None: + attention_mask = input_ids.new_ones(input_shape) + + # cut decoder_input_ids if past is used + if past_key_values and past_key_values[0] is not None: + input_ids = input_ids[:, -1:] + + return {"input_ids": input_ids, "attention_mask": attention_mask, "past_key_values": past_key_values} + + def _reorder_cache(self, past_key_values, beam_idx): + reordered_past = () + for layer_past in past_key_values: + reordered_past += ( + tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past[:2]) + + layer_past[2:], + ) + return reordered_past diff --git a/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/tokenization_gpt_neox_japanese.py b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/tokenization_gpt_neox_japanese.py new file mode 100644 index 0000000000000000000000000000000000000000..fd0fe796dcab02ee6a1b1972a456fb24aa367495 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/gpt_neox_japanese/tokenization_gpt_neox_japanese.py @@ -0,0 +1,368 @@ +# coding=utf-8 +# Copyright 2022 ABEJA, Inc. and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Tokenization classes for GPTNeoXJapanese.""" +import collections +import json +import os +import re +from typing import Optional, Tuple + +import numpy as np + +from ...tokenization_utils_fast import PreTrainedTokenizer +from ...utils import logging + + +logger = logging.get_logger(__name__) + +VOCAB_FILES_NAMES = {"vocab_file": "vocab.txt", "emoji_file": "emoji.json"} + + +def load_vocab_and_emoji(vocab_file, emoji_file): + """Loads a vocabulary file and emoji file into a dictionary.""" + with open(emoji_file, "r", encoding="utf-8") as f: + emoji = json.loads(f.read()) + + vocab = collections.OrderedDict() + raw_vocab = collections.OrderedDict() + ids_to_tokens = collections.OrderedDict() + with open(vocab_file, "r", encoding="utf-8") as f: + token = f.readlines() + token = [[t.rstrip("\n")] if (t == "," or "," not in t) else t.rstrip("\n").split(",") for t in token] + for idx, b in enumerate(token): + ids_to_tokens[idx] = b + raw_vocab[",".join(b)] = idx + for wd in b: + vocab[wd] = idx + + return vocab, raw_vocab, ids_to_tokens, emoji + + +class GPTNeoXJapaneseTokenizer(PreTrainedTokenizer): + """ + This tokenizer inherits from [`PreTrainedTokenizer`] and is based on Japanese special Sub-Word-Encoding that is + used in this repository (https://github.com/tanreinama/Japanese-BPEEncoder_V2). Check the repository for details. + Japanese has a relatively large vocabulary and there is no separation between words. Furthermore, the language is a + combination of hiragana, katakana, and kanji, and variants such as "1" and "①" are often used. In order to cope + with these, this tokenizer has the following features + - Subword-by-subword segmentation, which is intermediate between byte strings and morphological analysis. + - BPEs are created for each Kanji, Hiragana, and Katakana character, and there are no BPEs that cross character + types, such as Kanji + Hiragana or Hiragana + Katakana. + - All-byte encoding that does not require . + - Independent of UTF codes such as 2-byte and 3-byte characters + - Conversion of heterographs to the same token_id + - Emoji and Emoticon are grouped into 12 types as special tags. + + Example: + + ```python + >>> from transformers import GPTNeoXJapaneseTokenizer + + >>> tokenizer = GPTNeoXJapaneseTokenizer.from_pretrained("abeja/gpt-neox-japanese-2.7b") + >>> # You can confirm both 慶応 and 慶應 are encoded to 17749 + >>> tokenizer("吾輩は猫である🐯。実は慶応(慶應)大学出身")["input_ids"] + [30014, 26883, 26638, 27228, 25, 26650, 31732, 31679, 27809, 26638, 17749, 31592, 17749, 31593, 321, 1281] + + >>> # Both 慶応 and 慶應 are decoded to 慶応 + >>> tokenizer.decode(tokenizer("吾輩は猫である🐯。実は慶応(慶應)大学出身")["input_ids"]) + '吾輩は猫である🐯。実は慶応(慶応)大学出身' + ``` + + Args: + vocab_file (`str`): + File containing the vocabulary. + emoji_file (`str`): + File containing the emoji. + unk_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this + token instead. + pad_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The token used for padding + bos_token (`str`, *optional*, defaults to `"<|startoftext|>"`): + The beginning of sequence token. + eos_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The end of sequence token. + do_clean_text (`bool`, *optional*, defaults to `False`): + Whether or not to clean text for URL, EMAIL, TEL, Japanese DATE and Japanese PRICE. + """ + + vocab_files_names = VOCAB_FILES_NAMES + model_input_names = ["input_ids", "attention_mask"] + + def __init__( + self, + vocab_file, + emoji_file, + unk_token="<|endoftext|>", + pad_token="<|endoftext|>", + bos_token="<|startoftext|>", + eos_token="<|endoftext|>", + do_clean_text=False, + **kwargs, + ): + if not os.path.isfile(vocab_file): + raise ValueError( + f"Can't find a vocabulary file at path '{vocab_file}'. To load the vocabulary from a Google pretrained" + " model use `tokenizer = GPTNeoXJapaneseokenizer.from_pretrained(PRETRAINED_MODEL_NAME)`" + ) + if not os.path.isfile(emoji_file): + raise ValueError( + f"Can't find a emoji file at path '{emoji_file}'. To load the emoji information from a Google" + " pretrained model use `tokenizer = GPTNeoXJapaneseokenizer.from_pretrained(PRETRAINED_MODEL_NAME)`" + ) + self.do_clean_text = do_clean_text + self.vocab, self.raw_vocab, self.ids_to_tokens, self.emoji = load_vocab_and_emoji(vocab_file, emoji_file) + self.subword_tokenizer = SubWordJapaneseTokenizer( + vocab=self.vocab, ids_to_tokens=self.ids_to_tokens, emoji=self.emoji + ) + super().__init__( + unk_token=unk_token, + pad_token=pad_token, + bos_token=bos_token, + eos_token=eos_token, + do_clean_text=do_clean_text, + **kwargs, + ) + + @property + def vocab_size(self): + # self.vocab contains support for character fluctuation unique to Japanese, and has a large number of vocab + return len(self.raw_vocab) + + def get_vocab(self): + return dict(self.raw_vocab, **self.added_tokens_encoder) + + def _tokenize(self, text): + return self.subword_tokenizer.tokenize(text, clean=self.do_clean_text) + + def _convert_token_to_id(self, token): + """Converts a token (str) in an id using the vocab.""" + return self.vocab.get(token, self.vocab.get(self.unk_token)) + + def _convert_id_to_token(self, index): + """Converts an index (integer) in a token (str) using the vocab.""" + return self.subword_tokenizer.convert_id_to_token(index) + + def convert_tokens_to_string(self, tokens): + """Converts a sequence of tokens (string) in a single string.""" + out_string = "".join(tokens).strip() + return out_string + + @property + def default_chat_template(self): + """ + A simple chat template that just adds BOS/EOS tokens around messages while discarding role information. + """ + logger.warning_once( + "\nNo chat template is defined for this tokenizer - using the default template " + f"for the {self.__class__.__name__} class. If the default is not appropriate for " + "your model, please set `tokenizer.chat_template` to an appropriate template. " + "See https://huggingface.co/docs/transformers/main/chat_templating for more information.\n" + ) + return ( + "{% for message in messages %}" + "{{ bos_token + eos_token + message.content + eos_token }}" + "{% endfor %}" + "{% if add_generation_prompt %} {{ bos_token + eos_token }} {% endif %}" + ) + + def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]: + index = 0 + if os.path.isdir(save_directory): + vocab_file = os.path.join( + save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"] + ) + emoji_file = os.path.join( + save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["emoji_file"] + ) + else: + vocab_file = ( + (filename_prefix + "-" if filename_prefix else "") + save_directory + VOCAB_FILES_NAMES["vocab_file"] + ) + emoji_file = ( + (filename_prefix + "-" if filename_prefix else "") + save_directory + VOCAB_FILES_NAMES["emoji_file"] + ) + with open(vocab_file, "w", encoding="utf-8") as writer: + for token_index, token in self.ids_to_tokens.items(): + if index != token_index: + logger.warning( + f"Saving vocabulary to {vocab_file}: vocabulary indices are not consecutive." + " Please check that the vocabulary is not corrupted!" + ) + index = token_index + writer.write(",".join(token) + "\n") + index += 1 + with open(emoji_file, "w", encoding="utf-8") as writer: + json.dump(self.emoji, writer) + return vocab_file, emoji_file + + +class SubWordJapaneseTokenizer(object): + """ + https://github.com/tanreinama/Japanese-BPEEncoder_V2 This tokenizer class is under MIT Lisence according to the + original repository. + + MIT License + + Copyright (c) 2020 tanreinama + + Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated + documentation files (the "Software"), to deal in the Software without restriction, including without limitation the + rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all copies or substantial portions of + the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO + THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. + """ + + def __init__(self, vocab, ids_to_tokens, emoji): + self.vocab = vocab # same as swe + self.ids_to_tokens = ids_to_tokens # same as bpe + self.emoji = emoji + self.maxlen = np.max([len(w) for w in self.vocab.keys()]) + self.content_repatter1 = re.compile(r"(https?|ftp)(:\/\/[-_\.!~*\'()a-zA-Z0-9;\/?:\@&=\+$,%#]+)") + self.content_repatter2 = re.compile(r"[A-Za-z0-9\._+]*@[\-_0-9A-Za-z]+(\.[A-Za-z]+)*") + self.content_repatter3 = re.compile(r"[\(]{0,1}[0-9]{2,4}[\)\-\(]{0,1}[0-9]{2,4}[\)\-]{0,1}[0-9]{3,4}") + self.content_repatter4 = re.compile( + r"([12]\d{3}[/\-年])*(0?[1-9]|1[0-2])[/\-月]((0?[1-9]|[12][0-9]|3[01])日?)*(\d{1,2}|:|\d{1,2}時|\d{1,2}分|\(日\)|\(月\)|\(火\)|\(水\)|\(木\)|\(金\)|\(土\)|㈰|㈪|㈫|㈬|㈭|㈮|㈯)*" + ) + self.content_repatter5 = re.compile( + r"(明治|大正|昭和|平成|令和|㍾|㍽|㍼|㍻|\u32ff)\d{1,2}年(0?[1-9]|1[0-2])月(0?[1-9]|[12][0-9]|3[01])日(\d{1,2}|:|\d{1,2}時|\d{1,2}分|\(日\)|\(月\)|\(火\)|\(水\)|\(木\)|\(金\)|\(土\)|㈰|㈪|㈫|㈬|㈭|㈮|㈯)*" + ) + self.content_repatter6 = re.compile( + r"((0|[1-9]\d*|[1-9]\d{0,2}(,\d{3})+)*億)*((0|[1-9]\d*|[1-9]\d{0,2}(,\d{3})+)*万)*((0|[1-9]\d*|[1-9]\d{0,2}(,\d{3})+)*千)*(0|[1-9]\d*|[1-9]\d{0,2}(,\d{3})+)*(千円|万円|千万円|円|千ドル|万ドル|千万ドル|ドル|千ユーロ|万ユーロ|千万ユーロ|ユーロ)+(\(税込\)|\(税抜\)|\+tax)*" + ) + keisen = "─━│┃┄┅┆┇┈┉┊┋┌┍┎┏┐┑┒┓└┕┖┗┘┙┚┛├┝┞┟┠┡┢┣┤┥┦┧┨┩┪┫┬┭┮┯┰┱┲┳┴┵┶┷┸┹┺┻┼┽┾┿╀╁╂╃╄╅╆╇╈╉╊╋╌╍╎╏═║╒╓╔╕╖╗╘╙╚╛╜╝╞╟╠╡╢╣╤╥╦╧╨╩╪╫╬╭╮╯╰╱╲╳╴╵╶╷╸╹╺╻╼╽╾╿" + blocks = "▀▁▂▃▄▅▆▇█▉▊▋▌▍▎▏▐░▒▓▔▕▖▗▘▙▚▛▜▝▞▟" + self.content_trans1 = str.maketrans({k: "" for k in keisen + blocks}) + + def __len__(self): + return len(self.ids_to_tokens) + + def clean_text(self, content): + content = self.content_repatter1.sub("", content) + content = self.content_repatter2.sub("", content) + content = self.content_repatter3.sub("", content) + content = self.content_repatter4.sub("", content) + content = self.content_repatter5.sub("", content) + content = self.content_repatter6.sub("", content) + content = content.translate(self.content_trans1) + while "" in content: + content = content.replace("", "") + return content + + def tokenize(self, text, clean=False): + text = text.replace(" ", "") + text = text.replace("　", "") + text = text.replace("\r\n", "
") + text = text.replace("\n", "
") + text = text.replace("\r", "
") + text = text.replace("\t", "") + text = text.replace("—", "ー") + text = text.replace("−", "ー") + for k, v in self.emoji["emoji"].items(): + if k in text: + text = text.replace(k, v) + if clean: + text = self.clean_text(text) + + def check_simbol(x): + e = x.encode() + if len(x) == 1 and len(e) == 2: + c = (int(e[0]) << 8) + int(e[1]) + if ( + (c >= 0xC2A1 and c <= 0xC2BF) + or (c >= 0xC780 and c <= 0xC783) + or (c >= 0xCAB9 and c <= 0xCBBF) + or (c >= 0xCC80 and c <= 0xCDA2) + ): + return True + return False + + def checku2e(x): + e = x.encode() + if len(x) == 1 and len(e) == 3: + c = (int(e[0]) << 16) + (int(e[1]) << 8) + int(e[2]) + if c >= 0xE28080 and c <= 0xE2B07F: + return True + return False + + pos = 0 + result = [] + while pos < len(text): + end = min(len(text), pos + self.maxlen + 1) if text[pos] == "<" else pos + 3 + candidates = [] # (token_id, token, pos) + for e in range(end, pos, -1): + wd = text[pos:e] + if wd in self.vocab: + if wd[0] == "<" and len(wd) > 2: + candidates = [(self.vocab[wd], wd, e)] + break + else: + candidates.append((self.vocab[wd], wd, e)) + if len(candidates) > 0: + # the smallest token_id is adopted + _, wd, e = sorted(candidates, key=lambda x: x[0])[0] + result.append(wd) + pos = e + else: + end = pos + 1 + wd = text[pos:end] + if check_simbol(wd): + result.append("") + elif checku2e(wd): + result.append("") + else: + for i in wd.encode("utf-8"): + result.append("<|byte%d|>" % i) + pos = end + return result + + def convert_id_to_token(self, index, breakline="\n"): + words = [] + byte_tokens = [] + word = self.ids_to_tokens[index][0] + if word[:6] == "<|byte" and word[-2:] == "|>": + byte_tokens.append(int(word[6:-2])) + else: + if len(byte_tokens) > 0: + words.append(bytearray(byte_tokens).decode("utf-8", errors="replace")) + byte_tokens = [] + if word[:7] == "<|emoji" and word[-2:] == "|>": + words.append(self.emoji["emoji_inv"][word]) + elif word == "": + words.append(" ") + elif word == "
": + words.append(breakline) + elif word == "": + words.append("\t") + elif word == "": + words.append("▀") + elif word == "": + words.append("ǀ") + elif word == "": + words.append("‖") + else: + words.append(word) + if len(byte_tokens) > 0: + words.append(bytearray(byte_tokens).decode("utf-8", errors="replace")) + text = "".join(words) + return text diff --git a/venv/lib/python3.10/site-packages/transformers/models/qwen2/__init__.py b/venv/lib/python3.10/site-packages/transformers/models/qwen2/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..9fd51aaffee86cf99842756bcce5deb2d52f1143 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/qwen2/__init__.py @@ -0,0 +1,80 @@ +# Copyright 2024 The Qwen Team and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +from typing import TYPE_CHECKING + +from ...utils import ( + OptionalDependencyNotAvailable, + _LazyModule, + is_tokenizers_available, + is_torch_available, +) + + +_import_structure = { + "configuration_qwen2": ["QWEN2_PRETRAINED_CONFIG_ARCHIVE_MAP", "Qwen2Config"], + "tokenization_qwen2": ["Qwen2Tokenizer"], +} + +try: + if not is_tokenizers_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["tokenization_qwen2_fast"] = ["Qwen2TokenizerFast"] + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_qwen2"] = [ + "Qwen2ForCausalLM", + "Qwen2Model", + "Qwen2PreTrainedModel", + "Qwen2ForSequenceClassification", + ] + + +if TYPE_CHECKING: + from .configuration_qwen2 import QWEN2_PRETRAINED_CONFIG_ARCHIVE_MAP, Qwen2Config + from .tokenization_qwen2 import Qwen2Tokenizer + + try: + if not is_tokenizers_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .tokenization_qwen2_fast import Qwen2TokenizerFast + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_qwen2 import ( + Qwen2ForCausalLM, + Qwen2ForSequenceClassification, + Qwen2Model, + Qwen2PreTrainedModel, + ) + + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/venv/lib/python3.10/site-packages/transformers/models/qwen2/__pycache__/__init__.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/qwen2/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..626e2a68a75ad5eb90b537aa0abf5c9871c2cbb4 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/qwen2/__pycache__/__init__.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/qwen2/__pycache__/configuration_qwen2.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/qwen2/__pycache__/configuration_qwen2.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..b3af45284eaf494ecfddc3762037895b7f237665 Binary files /dev/null and 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b/venv/lib/python3.10/site-packages/transformers/models/qwen2/configuration_qwen2.py @@ -0,0 +1,143 @@ +# coding=utf-8 +# Copyright 2024 The Qwen team, Alibaba Group and the HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" Qwen2 model configuration""" + +from ...configuration_utils import PretrainedConfig +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +from ..deprecated._archive_maps import QWEN2_PRETRAINED_CONFIG_ARCHIVE_MAP # noqa: F401, E402 + + +class Qwen2Config(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`Qwen2Model`]. It is used to instantiate a + Qwen2 model according to the specified arguments, defining the model architecture. Instantiating a configuration + with the defaults will yield a similar configuration to that of + Qwen2-7B-beta [Qwen/Qwen2-7B-beta](https://huggingface.co/Qwen/Qwen2-7B-beta). + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + + Args: + vocab_size (`int`, *optional*, defaults to 151936): + Vocabulary size of the Qwen2 model. Defines the number of different tokens that can be represented by the + `inputs_ids` passed when calling [`Qwen2Model`] + hidden_size (`int`, *optional*, defaults to 4096): + Dimension of the hidden representations. + intermediate_size (`int`, *optional*, defaults to 22016): + Dimension of the MLP representations. + num_hidden_layers (`int`, *optional*, defaults to 32): + Number of hidden layers in the Transformer encoder. + num_attention_heads (`int`, *optional*, defaults to 32): + Number of attention heads for each attention layer in the Transformer encoder. + num_key_value_heads (`int`, *optional*, defaults to 32): + This is the number of key_value heads that should be used to implement Grouped Query Attention. If + `num_key_value_heads=num_attention_heads`, the model will use Multi Head Attention (MHA), if + `num_key_value_heads=1 the model will use Multi Query Attention (MQA) otherwise GQA is used. When + converting a multi-head checkpoint to a GQA checkpoint, each group key and value head should be constructed + by meanpooling all the original heads within that group. For more details checkout [this + paper](https://arxiv.org/pdf/2305.13245.pdf). If it is not specified, will default to `32`. + hidden_act (`str` or `function`, *optional*, defaults to `"silu"`): + The non-linear activation function (function or string) in the decoder. + max_position_embeddings (`int`, *optional*, defaults to 32768): + The maximum sequence length that this model might ever be used with. + initializer_range (`float`, *optional*, defaults to 0.02): + The standard deviation of the truncated_normal_initializer for initializing all weight matrices. + rms_norm_eps (`float`, *optional*, defaults to 1e-06): + The epsilon used by the rms normalization layers. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last key/values attentions (not used by all models). Only + relevant if `config.is_decoder=True`. + tie_word_embeddings (`bool`, *optional*, defaults to `False`): + Whether the model's input and output word embeddings should be tied. + rope_theta (`float`, *optional*, defaults to 10000.0): + The base period of the RoPE embeddings. + use_sliding_window (`bool`, *optional*, defaults to `False`): + Whether to use sliding window attention. + sliding_window (`int`, *optional*, defaults to 4096): + Sliding window attention (SWA) window size. If not specified, will default to `4096`. + max_window_layers (`int`, *optional*, defaults to 28): + The number of layers that use SWA (Sliding Window Attention). The bottom layers use SWA while the top use full attention. + attention_dropout (`float`, *optional*, defaults to 0.0): + The dropout ratio for the attention probabilities. + + ```python + >>> from transformers import Qwen2Model, Qwen2Config + + >>> # Initializing a Qwen2 style configuration + >>> configuration = Qwen2Config() + + >>> # Initializing a model from the Qwen2-7B style configuration + >>> model = Qwen2Model(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "qwen2" + keys_to_ignore_at_inference = ["past_key_values"] + + def __init__( + self, + vocab_size=151936, + hidden_size=4096, + intermediate_size=22016, + num_hidden_layers=32, + num_attention_heads=32, + num_key_value_heads=32, + hidden_act="silu", + max_position_embeddings=32768, + initializer_range=0.02, + rms_norm_eps=1e-6, + use_cache=True, + tie_word_embeddings=False, + rope_theta=10000.0, + use_sliding_window=False, + sliding_window=4096, + max_window_layers=28, + attention_dropout=0.0, + **kwargs, + ): + self.vocab_size = vocab_size + self.max_position_embeddings = max_position_embeddings + self.hidden_size = hidden_size + self.intermediate_size = intermediate_size + self.num_hidden_layers = num_hidden_layers + self.num_attention_heads = num_attention_heads + self.use_sliding_window = use_sliding_window + self.sliding_window = sliding_window + self.max_window_layers = max_window_layers + + # for backward compatibility + if num_key_value_heads is None: + num_key_value_heads = num_attention_heads + + self.num_key_value_heads = num_key_value_heads + self.hidden_act = hidden_act + self.initializer_range = initializer_range + self.rms_norm_eps = rms_norm_eps + self.use_cache = use_cache + self.rope_theta = rope_theta + self.attention_dropout = attention_dropout + + super().__init__( + tie_word_embeddings=tie_word_embeddings, + **kwargs, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/qwen2/modeling_qwen2.py b/venv/lib/python3.10/site-packages/transformers/models/qwen2/modeling_qwen2.py new file mode 100644 index 0000000000000000000000000000000000000000..b5a1370ae1fc8ff7b15b54b7047895e1f03e7c89 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/qwen2/modeling_qwen2.py @@ -0,0 +1,1397 @@ +# coding=utf-8 +# Copyright 2024 The Qwen team, Alibaba Group and the HuggingFace Inc. team. All rights reserved. +# +# This code is based on EleutherAI's GPT-NeoX library and the GPT-NeoX +# and OPT implementations in this library. It has been modified from its +# original forms to accommodate minor architectural differences compared +# to GPT-NeoX and OPT used by the Meta AI team that trained the model. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" PyTorch Qwen2 model.""" +import inspect +import math +import warnings +from typing import List, Optional, Tuple, Union + +import torch +import torch.nn.functional as F +import torch.utils.checkpoint +from torch import nn +from torch.nn import BCEWithLogitsLoss, CrossEntropyLoss, MSELoss + +from ...activations import ACT2FN +from ...cache_utils import Cache, DynamicCache +from ...modeling_attn_mask_utils import _prepare_4d_causal_attention_mask, _prepare_4d_causal_attention_mask_for_sdpa +from ...modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast, SequenceClassifierOutputWithPast +from ...modeling_utils import PreTrainedModel +from ...utils import ( + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_flash_attn_2_available, + is_flash_attn_greater_or_equal_2_10, + logging, + replace_return_docstrings, +) +from .configuration_qwen2 import Qwen2Config + + +if is_flash_attn_2_available(): + from flash_attn import flash_attn_func, flash_attn_varlen_func + from flash_attn.bert_padding import index_first_axis, pad_input, unpad_input # noqa + + _flash_supports_window_size = "window_size" in list(inspect.signature(flash_attn_func).parameters) + + +logger = logging.get_logger(__name__) + + +_CHECKPOINT_FOR_DOC = "Qwen/Qwen2-7B-beta" +_CONFIG_FOR_DOC = "Qwen2Config" + + +# Copied from transformers.models.llama.modeling_llama._get_unpad_data +def _get_unpad_data(attention_mask): + seqlens_in_batch = attention_mask.sum(dim=-1, dtype=torch.int32) + indices = torch.nonzero(attention_mask.flatten(), as_tuple=False).flatten() + max_seqlen_in_batch = seqlens_in_batch.max().item() + cu_seqlens = F.pad(torch.cumsum(seqlens_in_batch, dim=0, dtype=torch.int32), (1, 0)) + return ( + indices, + cu_seqlens, + max_seqlen_in_batch, + ) + + +# Copied from transformers.models.llama.modeling_llama.LlamaRMSNorm with Llama->Qwen2 +class Qwen2RMSNorm(nn.Module): + def __init__(self, hidden_size, eps=1e-6): + """ + Qwen2RMSNorm is equivalent to T5LayerNorm + """ + super().__init__() + self.weight = nn.Parameter(torch.ones(hidden_size)) + self.variance_epsilon = eps + + def forward(self, hidden_states): + input_dtype = hidden_states.dtype + hidden_states = hidden_states.to(torch.float32) + variance = hidden_states.pow(2).mean(-1, keepdim=True) + hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon) + return self.weight * hidden_states.to(input_dtype) + + +# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral->Qwen2 +class Qwen2RotaryEmbedding(nn.Module): + def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None): + super().__init__() + + self.dim = dim + self.max_position_embeddings = max_position_embeddings + self.base = base + inv_freq = 1.0 / (self.base ** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(device) / self.dim)) + self.register_buffer("inv_freq", inv_freq, persistent=False) + + # Build here to make `torch.jit.trace` work. + self._set_cos_sin_cache( + seq_len=max_position_embeddings, device=self.inv_freq.device, dtype=torch.get_default_dtype() + ) + + def _set_cos_sin_cache(self, seq_len, device, dtype): + self.max_seq_len_cached = seq_len + t = torch.arange(self.max_seq_len_cached, device=device, dtype=torch.int64).type_as(self.inv_freq) + + freqs = torch.outer(t, self.inv_freq) + # Different from paper, but it uses a different permutation in order to obtain the same calculation + emb = torch.cat((freqs, freqs), dim=-1) + self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False) + self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False) + + def forward(self, x, seq_len=None): + # x: [bs, num_attention_heads, seq_len, head_size] + if seq_len > self.max_seq_len_cached: + self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=x.dtype) + + return ( + self.cos_cached[:seq_len].to(dtype=x.dtype), + self.sin_cached[:seq_len].to(dtype=x.dtype), + ) + + +# Copied from transformers.models.llama.modeling_llama.rotate_half +def rotate_half(x): + """Rotates half the hidden dims of the input.""" + x1 = x[..., : x.shape[-1] // 2] + x2 = x[..., x.shape[-1] // 2 :] + return torch.cat((-x2, x1), dim=-1) + + +# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb +def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1): + """Applies Rotary Position Embedding to the query and key tensors. + + Args: + q (`torch.Tensor`): The query tensor. + k (`torch.Tensor`): The key tensor. + cos (`torch.Tensor`): The cosine part of the rotary embedding. + sin (`torch.Tensor`): The sine part of the rotary embedding. + position_ids (`torch.Tensor`): + The position indices of the tokens corresponding to the query and key tensors. For example, this can be + used to pass offsetted position ids when working with a KV-cache. + unsqueeze_dim (`int`, *optional*, defaults to 1): + The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and + sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note + that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and + k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes + cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have + the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2. + Returns: + `tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding. + """ + cos = cos[position_ids].unsqueeze(unsqueeze_dim) + sin = sin[position_ids].unsqueeze(unsqueeze_dim) + q_embed = (q * cos) + (rotate_half(q) * sin) + k_embed = (k * cos) + (rotate_half(k) * sin) + return q_embed, k_embed + + +# Copied from transformers.models.mistral.modeling_mistral.MistralMLP with Mistral->Qwen2 +class Qwen2MLP(nn.Module): + def __init__(self, config): + super().__init__() + self.config = config + self.hidden_size = config.hidden_size + self.intermediate_size = config.intermediate_size + self.gate_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False) + self.up_proj = nn.Linear(self.hidden_size, self.intermediate_size, bias=False) + self.down_proj = nn.Linear(self.intermediate_size, self.hidden_size, bias=False) + self.act_fn = ACT2FN[config.hidden_act] + + def forward(self, x): + return self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x)) + + +# Copied from transformers.models.llama.modeling_llama.repeat_kv +def repeat_kv(hidden_states: torch.Tensor, n_rep: int) -> torch.Tensor: + """ + This is the equivalent of torch.repeat_interleave(x, dim=1, repeats=n_rep). The hidden states go from (batch, + num_key_value_heads, seqlen, head_dim) to (batch, num_attention_heads, seqlen, head_dim) + """ + batch, num_key_value_heads, slen, head_dim = hidden_states.shape + if n_rep == 1: + return hidden_states + hidden_states = hidden_states[:, :, None, :, :].expand(batch, num_key_value_heads, n_rep, slen, head_dim) + return hidden_states.reshape(batch, num_key_value_heads * n_rep, slen, head_dim) + + +class Qwen2Attention(nn.Module): + """ + Multi-headed attention from 'Attention Is All You Need' paper. Modified to use sliding window attention: Longformer + and "Generating Long Sequences with Sparse Transformers". + """ + + def __init__(self, config: Qwen2Config, layer_idx: Optional[int] = None): + super().__init__() + self.config = config + self.layer_idx = layer_idx + if layer_idx is None: + logger.warning_once( + f"Instantiating {self.__class__.__name__} without passing `layer_idx` is not recommended and will " + "to errors during the forward call, if caching is used. Please make sure to provide a `layer_idx` " + "when creating this class." + ) + + self.hidden_size = config.hidden_size + self.num_heads = config.num_attention_heads + self.head_dim = self.hidden_size // self.num_heads + self.num_key_value_heads = config.num_key_value_heads + self.num_key_value_groups = self.num_heads // self.num_key_value_heads + self.max_position_embeddings = config.max_position_embeddings + self.rope_theta = config.rope_theta + self.is_causal = True + self.attention_dropout = config.attention_dropout + + if (self.head_dim * self.num_heads) != self.hidden_size: + raise ValueError( + f"hidden_size must be divisible by num_heads (got `hidden_size`: {self.hidden_size}" + f" and `num_heads`: {self.num_heads})." + ) + self.q_proj = nn.Linear(self.hidden_size, self.num_heads * self.head_dim, bias=True) + self.k_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=True) + self.v_proj = nn.Linear(self.hidden_size, self.num_key_value_heads * self.head_dim, bias=True) + self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=False) + + self.rotary_emb = Qwen2RotaryEmbedding( + self.head_dim, + max_position_embeddings=self.max_position_embeddings, + base=self.rope_theta, + ) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Cache] = None, + output_attentions: bool = False, + use_cache: bool = False, + **kwargs, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + if "padding_mask" in kwargs: + warnings.warn( + "Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`" + ) + bsz, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + if self.layer_idx is None: + raise ValueError( + f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} " + "for auto-regressive decoding with k/v caching, please make sure to initialize the attention class " + "with a layer index." + ) + kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx) + cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len) + query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids) + + if past_key_value is not None: + cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models + key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs) + + # repeat k/v heads if n_kv_heads < n_heads + key_states = repeat_kv(key_states, self.num_key_value_groups) + value_states = repeat_kv(value_states, self.num_key_value_groups) + + attn_weights = torch.matmul(query_states, key_states.transpose(2, 3)) / math.sqrt(self.head_dim) + + if attn_weights.size() != (bsz, self.num_heads, q_len, kv_seq_len): + raise ValueError( + f"Attention weights should be of size {(bsz, self.num_heads, q_len, kv_seq_len)}, but is" + f" {attn_weights.size()}" + ) + + if attention_mask is not None: + if attention_mask.size() != (bsz, 1, q_len, kv_seq_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}" + ) + + attn_weights = attn_weights + attention_mask + + # upcast attention to fp32 + attn_weights = nn.functional.softmax(attn_weights, dim=-1, dtype=torch.float32).to(query_states.dtype) + attn_weights = nn.functional.dropout(attn_weights, p=self.attention_dropout, training=self.training) + attn_output = torch.matmul(attn_weights, value_states) + + if attn_output.size() != (bsz, self.num_heads, q_len, self.head_dim): + raise ValueError( + f"`attn_output` should be of size {(bsz, self.num_heads, q_len, self.head_dim)}, but is" + f" {attn_output.size()}" + ) + + attn_output = attn_output.transpose(1, 2).contiguous() + attn_output = attn_output.reshape(bsz, q_len, self.hidden_size) + + attn_output = self.o_proj(attn_output) + + if not output_attentions: + attn_weights = None + + return attn_output, attn_weights, past_key_value + + +class Qwen2FlashAttention2(Qwen2Attention): + """ + Qwen2 flash attention module, following Qwen2 attention module. This module inherits from `Qwen2Attention` + as the weights of the module stays untouched. The only required change would be on the forward pass + where it needs to correctly call the public API of flash attention and deal with padding tokens + in case the input contains any of them. Additionally, for sliding window attention, we apply SWA only to the bottom + config.max_window_layers layers. + """ + + # Copied from transformers.models.llama.modeling_llama.LlamaFlashAttention2.__init__ + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + + # TODO: Should be removed once Flash Attention for RoCm is bumped to 2.1. + # flash_attn<2.1 generates top-left aligned causal mask, while what is needed here is bottom-right alignement, that was made default for flash_attn>=2.1. This attribute is used to handle this difference. Reference: https://github.com/Dao-AILab/flash-attention/releases/tag/v2.1.0. + # Beware that with flash_attn<2.1, using q_seqlen != k_seqlen (except for the case q_seqlen == 1) produces a wrong mask (top-left). + self._flash_attn_uses_top_left_mask = not is_flash_attn_greater_or_equal_2_10() + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Cache] = None, + output_attentions: bool = False, + use_cache: bool = False, + **kwargs, + ): + if "padding_mask" in kwargs: + warnings.warn( + "Passing `padding_mask` is deprecated and will be removed in v4.37. Please make sure use `attention_mask` instead.`" + ) + + # overwrite attention_mask with padding_mask + attention_mask = kwargs.pop("padding_mask") + bsz, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + if self.layer_idx is None: + raise ValueError( + f"The cache structure has changed since version v4.36. If you are using {self.__class__.__name__} " + "for auto-regressive decoding with k/v caching, please make sure to initialize the attention class " + "with a layer index." + ) + kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx) + + # Because the input can be padded, the absolute sequence length depends on the max position id. + rotary_seq_len = max(kv_seq_len, position_ids[:, -1].max().item()) + 1 + cos, sin = self.rotary_emb(value_states, seq_len=rotary_seq_len) + + query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids) + + use_sliding_windows = ( + _flash_supports_window_size + and getattr(self.config, "sliding_window", None) is not None + and kv_seq_len > self.config.sliding_window + and self.config.use_sliding_window + ) + + if not _flash_supports_window_size: + logger.warning_once( + "The current flash attention version does not support sliding window attention, for a more memory efficient implementation" + " make sure to upgrade flash-attn library." + ) + + if past_key_value is not None: + # Activate slicing cache only if the config has a value `sliding_windows` attribute + cache_has_contents = past_key_value.get_seq_length(self.layer_idx) > 0 + if ( + getattr(self.config, "sliding_window", None) is not None + and kv_seq_len > self.config.sliding_window + and cache_has_contents + ): + slicing_tokens = 1 - self.config.sliding_window + + past_key = past_key_value[self.layer_idx][0] + past_value = past_key_value[self.layer_idx][1] + + past_key = past_key[:, :, slicing_tokens:, :].contiguous() + past_value = past_value[:, :, slicing_tokens:, :].contiguous() + + if past_key.shape[-2] != self.config.sliding_window - 1: + raise ValueError( + f"past key must have a shape of (`batch_size, num_heads, self.config.sliding_window-1, head_dim`), got" + f" {past_key.shape}" + ) + + if attention_mask is not None: + attention_mask = attention_mask[:, slicing_tokens:] + attention_mask = torch.cat([attention_mask, torch.ones_like(attention_mask[:, -1:])], dim=-1) + + cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models + key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs) + + # repeat k/v heads if n_kv_heads < n_heads + key_states = repeat_kv(key_states, self.num_key_value_groups) + value_states = repeat_kv(value_states, self.num_key_value_groups) + dropout_rate = 0.0 if not self.training else self.attention_dropout + + # In PEFT, usually we cast the layer norms in float32 for training stability reasons + # therefore the input hidden states gets silently casted in float32. Hence, we need + # cast them back in float16 just to be sure everything works as expected. + input_dtype = query_states.dtype + if input_dtype == torch.float32: + if torch.is_autocast_enabled(): + target_dtype = torch.get_autocast_gpu_dtype() + # Handle the case where the model is quantized + elif hasattr(self.config, "_pre_quantization_dtype"): + target_dtype = self.config._pre_quantization_dtype + else: + target_dtype = self.q_proj.weight.dtype + + logger.warning_once( + f"The input hidden states seems to be silently casted in float32, this might be related to" + f" the fact you have upcasted embedding or layer norm layers in float32. We will cast back the input in" + f" {target_dtype}." + ) + + query_states = query_states.to(target_dtype) + key_states = key_states.to(target_dtype) + value_states = value_states.to(target_dtype) + + # Reashape to the expected shape for Flash Attention + query_states = query_states.transpose(1, 2) + key_states = key_states.transpose(1, 2) + value_states = value_states.transpose(1, 2) + + attn_output = self._flash_attention_forward( + query_states, + key_states, + value_states, + attention_mask, + q_len, + dropout=dropout_rate, + use_sliding_windows=use_sliding_windows, + ) + + attn_output = attn_output.reshape(bsz, q_len, self.hidden_size).contiguous() + attn_output = self.o_proj(attn_output) + + if not output_attentions: + attn_weights = None + + return attn_output, attn_weights, past_key_value + + def _flash_attention_forward( + self, + query_states, + key_states, + value_states, + attention_mask, + query_length, + dropout=0.0, + softmax_scale=None, + use_sliding_windows=False, + ): + """ + Calls the forward method of Flash Attention - if the input hidden states contain at least one padding token + first unpad the input, then computes the attention scores and pad the final attention scores. + + Args: + query_states (`torch.Tensor`): + Input query states to be passed to Flash Attention API + key_states (`torch.Tensor`): + Input key states to be passed to Flash Attention API + value_states (`torch.Tensor`): + Input value states to be passed to Flash Attention API + attention_mask (`torch.Tensor`): + The padding mask - corresponds to a tensor of size `(batch_size, seq_len)` where 0 stands for the + position of padding tokens and 1 for the position of non-padding tokens. + dropout (`float`): + Attention dropout + softmax_scale (`float`, *optional*): + The scaling of QK^T before applying softmax. Default to 1 / sqrt(head_dim) + use_sliding_windows (`bool`, *optional*): + Whether to activate sliding window attention. + """ + if not self._flash_attn_uses_top_left_mask: + causal = self.is_causal + else: + # TODO: Remove the `query_length != 1` check once Flash Attention for RoCm is bumped to 2.1. For details, please see the comment in LlamaFlashAttention2 __init__. + causal = self.is_causal and query_length != 1 + + # Decide whether to use SWA or not by layer index. + if use_sliding_windows and self.layer_idx >= self.config.max_window_layers: + use_sliding_windows = False + + # Contains at least one padding token in the sequence + if attention_mask is not None: + batch_size = query_states.shape[0] + query_states, key_states, value_states, indices_q, cu_seq_lens, max_seq_lens = self._upad_input( + query_states, key_states, value_states, attention_mask, query_length + ) + + cu_seqlens_q, cu_seqlens_k = cu_seq_lens + max_seqlen_in_batch_q, max_seqlen_in_batch_k = max_seq_lens + + if not use_sliding_windows: + attn_output_unpad = flash_attn_varlen_func( + query_states, + key_states, + value_states, + cu_seqlens_q=cu_seqlens_q, + cu_seqlens_k=cu_seqlens_k, + max_seqlen_q=max_seqlen_in_batch_q, + max_seqlen_k=max_seqlen_in_batch_k, + dropout_p=dropout, + softmax_scale=softmax_scale, + causal=causal, + ) + else: + attn_output_unpad = flash_attn_varlen_func( + query_states, + key_states, + value_states, + cu_seqlens_q=cu_seqlens_q, + cu_seqlens_k=cu_seqlens_k, + max_seqlen_q=max_seqlen_in_batch_q, + max_seqlen_k=max_seqlen_in_batch_k, + dropout_p=dropout, + softmax_scale=softmax_scale, + causal=causal, + window_size=(self.config.sliding_window, self.config.sliding_window), + ) + + attn_output = pad_input(attn_output_unpad, indices_q, batch_size, query_length) + else: + if not use_sliding_windows: + attn_output = flash_attn_func( + query_states, + key_states, + value_states, + dropout, + softmax_scale=softmax_scale, + causal=causal, + ) + else: + attn_output = flash_attn_func( + query_states, + key_states, + value_states, + dropout, + softmax_scale=softmax_scale, + causal=causal, + window_size=(self.config.sliding_window, self.config.sliding_window), + ) + + return attn_output + + # Copied from transformers.models.mistral.modeling_mistral.MistralFlashAttention2._upad_input + def _upad_input(self, query_layer, key_layer, value_layer, attention_mask, query_length): + batch_size, kv_seq_len, num_heads, head_dim = key_layer.shape + + # On the first iteration we need to properly re-create the padding mask + # by slicing it on the proper place + if kv_seq_len != attention_mask.shape[-1]: + attention_mask_num_tokens = attention_mask.shape[-1] + attention_mask = attention_mask[:, attention_mask_num_tokens - kv_seq_len :] + + indices_k, cu_seqlens_k, max_seqlen_in_batch_k = _get_unpad_data(attention_mask) + + key_layer = index_first_axis(key_layer.reshape(batch_size * kv_seq_len, num_heads, head_dim), indices_k) + value_layer = index_first_axis(value_layer.reshape(batch_size * kv_seq_len, num_heads, head_dim), indices_k) + + if query_length == kv_seq_len: + query_layer = index_first_axis( + query_layer.reshape(batch_size * kv_seq_len, num_heads, head_dim), indices_k + ) + cu_seqlens_q = cu_seqlens_k + max_seqlen_in_batch_q = max_seqlen_in_batch_k + indices_q = indices_k + elif query_length == 1: + max_seqlen_in_batch_q = 1 + cu_seqlens_q = torch.arange( + batch_size + 1, dtype=torch.int32, device=query_layer.device + ) # There is a memcpy here, that is very bad. + indices_q = cu_seqlens_q[:-1] + query_layer = query_layer.squeeze(1) + else: + # The -q_len: slice assumes left padding. + attention_mask = attention_mask[:, -query_length:] + query_layer, indices_q, cu_seqlens_q, max_seqlen_in_batch_q = unpad_input(query_layer, attention_mask) + + return ( + query_layer, + key_layer, + value_layer, + indices_q, + (cu_seqlens_q, cu_seqlens_k), + (max_seqlen_in_batch_q, max_seqlen_in_batch_k), + ) + + +# Copied from transformers.models.mistral.modeling_mistral.MistralSdpaAttention with Mistral->Qwen2 +class Qwen2SdpaAttention(Qwen2Attention): + """ + Qwen2 attention module using torch.nn.functional.scaled_dot_product_attention. This module inherits from + `Qwen2Attention` as the weights of the module stays untouched. The only changes are on the forward pass to adapt to + SDPA API. + """ + + # Adapted from Qwen2Attention.forward + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Cache] = None, + output_attentions: bool = False, + use_cache: bool = False, + ) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]: + if output_attentions: + # TODO: Improve this warning with e.g. `model.config.attn_implementation = "manual"` once this is implemented. + logger.warning_once( + "Qwen2Model is using Qwen2SdpaAttention, but `torch.nn.functional.scaled_dot_product_attention` does not support `output_attentions=True`. Falling back to the manual attention implementation, " + 'but specifying the manual implementation will be required from Transformers version v5.0.0 onwards. This warning can be removed using the argument `attn_implementation="eager"` when loading the model.' + ) + return super().forward( + hidden_states=hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + ) + + bsz, q_len, _ = hidden_states.size() + + query_states = self.q_proj(hidden_states) + key_states = self.k_proj(hidden_states) + value_states = self.v_proj(hidden_states) + + query_states = query_states.view(bsz, q_len, self.num_heads, self.head_dim).transpose(1, 2) + key_states = key_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + value_states = value_states.view(bsz, q_len, self.num_key_value_heads, self.head_dim).transpose(1, 2) + + kv_seq_len = key_states.shape[-2] + if past_key_value is not None: + kv_seq_len += past_key_value.get_usable_length(kv_seq_len, self.layer_idx) + cos, sin = self.rotary_emb(value_states, seq_len=kv_seq_len) + + query_states, key_states = apply_rotary_pos_emb(query_states, key_states, cos, sin, position_ids) + + if past_key_value is not None: + cache_kwargs = {"sin": sin, "cos": cos} # Specific to RoPE models + key_states, value_states = past_key_value.update(key_states, value_states, self.layer_idx, cache_kwargs) + + key_states = repeat_kv(key_states, self.num_key_value_groups) + value_states = repeat_kv(value_states, self.num_key_value_groups) + + if attention_mask is not None: + if attention_mask.size() != (bsz, 1, q_len, kv_seq_len): + raise ValueError( + f"Attention mask should be of size {(bsz, 1, q_len, kv_seq_len)}, but is {attention_mask.size()}" + ) + + # SDPA with memory-efficient backend is currently (torch==2.1.2) bugged with non-contiguous inputs with custom attn_mask, + # Reference: https://github.com/pytorch/pytorch/issues/112577. + if query_states.device.type == "cuda" and attention_mask is not None: + query_states = query_states.contiguous() + key_states = key_states.contiguous() + value_states = value_states.contiguous() + + attn_output = torch.nn.functional.scaled_dot_product_attention( + query_states, + key_states, + value_states, + attn_mask=attention_mask, + dropout_p=self.attention_dropout if self.training else 0.0, + # The q_len > 1 is necessary to match with AttentionMaskConverter.to_causal_4d that does not create a causal mask in case q_len == 1. + is_causal=self.is_causal and attention_mask is None and q_len > 1, + ) + + attn_output = attn_output.transpose(1, 2).contiguous() + attn_output = attn_output.view(bsz, q_len, self.hidden_size) + + attn_output = self.o_proj(attn_output) + + return attn_output, None, past_key_value + + +QWEN2_ATTENTION_CLASSES = { + "eager": Qwen2Attention, + "flash_attention_2": Qwen2FlashAttention2, + "sdpa": Qwen2SdpaAttention, +} + + +class Qwen2DecoderLayer(nn.Module): + def __init__(self, config: Qwen2Config, layer_idx: int): + super().__init__() + self.hidden_size = config.hidden_size + + if config.use_sliding_window and config._attn_implementation != "flash_attention_2": + logger.warning_once( + f"Sliding Window Attention is enabled but not implemented for `{config._attn_implementation}`; " + "unexpected results may be encountered." + ) + self.self_attn = QWEN2_ATTENTION_CLASSES[config._attn_implementation](config, layer_idx) + + self.mlp = Qwen2MLP(config) + self.input_layernorm = Qwen2RMSNorm(config.hidden_size, eps=config.rms_norm_eps) + self.post_attention_layernorm = Qwen2RMSNorm(config.hidden_size, eps=config.rms_norm_eps) + + def forward( + self, + hidden_states: torch.Tensor, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_value: Optional[Tuple[torch.Tensor]] = None, + output_attentions: Optional[bool] = False, + use_cache: Optional[bool] = False, + **kwargs, + ) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]: + if "padding_mask" in kwargs: + warnings.warn( + "Passing `padding_mask` is deprecated and will be removed in v4.37. " + "Please make sure use `attention_mask` instead.`" + ) + """ + Args: + hidden_states (`torch.FloatTensor`): input to the layer of shape `(batch, seq_len, embed_dim)` + attention_mask (`torch.FloatTensor`, *optional*): attention mask of size + `(batch, sequence_length)` where padding elements are indicated by 0. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under + returned tensors for more detail. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding + (see `past_key_values`). + past_key_value (`Tuple(torch.FloatTensor)`, *optional*): cached past key and value projection states + """ + + residual = hidden_states + + hidden_states = self.input_layernorm(hidden_states) + + # Self Attention + hidden_states, self_attn_weights, present_key_value = self.self_attn( + hidden_states=hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_value, + output_attentions=output_attentions, + use_cache=use_cache, + ) + hidden_states = residual + hidden_states + + # Fully Connected + residual = hidden_states + hidden_states = self.post_attention_layernorm(hidden_states) + hidden_states = self.mlp(hidden_states) + hidden_states = residual + hidden_states + + outputs = (hidden_states,) + + if output_attentions: + outputs += (self_attn_weights,) + + if use_cache: + outputs += (present_key_value,) + + return outputs + + +QWEN2_START_DOCSTRING = r""" + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`Qwen2Config`]): + Model configuration class with all the parameters of the model. Initializing with a config file does not + load the weights associated with the model, only the configuration. Check out the + [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + + +@add_start_docstrings( + "The bare Qwen2 Model outputting raw hidden-states without any specific head on top.", + QWEN2_START_DOCSTRING, +) +class Qwen2PreTrainedModel(PreTrainedModel): + config_class = Qwen2Config + base_model_prefix = "model" + supports_gradient_checkpointing = True + _no_split_modules = ["Qwen2DecoderLayer"] + _skip_keys_device_placement = "past_key_values" + _supports_flash_attn_2 = True + _supports_sdpa = True + _supports_cache_class = True + + def _init_weights(self, module): + std = self.config.initializer_range + if isinstance(module, nn.Linear): + module.weight.data.normal_(mean=0.0, std=std) + if module.bias is not None: + module.bias.data.zero_() + elif isinstance(module, nn.Embedding): + module.weight.data.normal_(mean=0.0, std=std) + if module.padding_idx is not None: + module.weight.data[module.padding_idx].zero_() + + +QWEN2_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. Padding will be ignored by default should you provide + it. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) + attention_mask (`torch.Tensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + If `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see + `past_key_values`). + + If you want to change padding behavior, you should read [`modeling_opt._prepare_decoder_attention_mask`] + and modify to your needs. See diagram 1 in [the paper](https://arxiv.org/abs/1910.13461) for more + information on the default strategy. + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + position_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Indices of positions of each input sequence tokens in the position embeddings. Selected in the range `[0, + config.n_positions - 1]`. + + [What are position IDs?](../glossary#position-ids) + past_key_values (`Cache` or `tuple(tuple(torch.FloatTensor))`, *optional*): + Pre-computed hidden-states (key and values in the self-attention blocks and in the cross-attention + blocks) that can be used to speed up sequential decoding. This typically consists in the `past_key_values` + returned by the model at a previous stage of decoding, when `use_cache=True` or `config.use_cache=True`. + + Two formats are allowed: + - a [`~cache_utils.Cache`] instance; + - Tuple of `tuple(torch.FloatTensor)` of length `config.n_layers`, with each tuple having 2 tensors of + shape `(batch_size, num_heads, sequence_length, embed_size_per_head)`). This is also known as the legacy + cache format. + + The model will output the same cache format that is fed as input. If no `past_key_values` are passed, the + legacy cache format will be returned. + + If `past_key_values` are used, the user can optionally input only the last `input_ids` (those that don't + have their past key value states given to this model) of shape `(batch_size, 1)` instead of all `input_ids` + of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +@add_start_docstrings( + "The bare Qwen2 Model outputting raw hidden-states without any specific head on top.", + QWEN2_START_DOCSTRING, +) +class Qwen2Model(Qwen2PreTrainedModel): + """ + Transformer decoder consisting of *config.num_hidden_layers* layers. Each layer is a [`Qwen2DecoderLayer`] + + Args: + config: Qwen2Config + """ + + def __init__(self, config: Qwen2Config): + super().__init__(config) + self.padding_idx = config.pad_token_id + self.vocab_size = config.vocab_size + + self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx) + self.layers = nn.ModuleList( + [Qwen2DecoderLayer(config, layer_idx) for layer_idx in range(config.num_hidden_layers)] + ) + self._attn_implementation = config._attn_implementation + self.norm = Qwen2RMSNorm(config.hidden_size, eps=config.rms_norm_eps) + + self.gradient_checkpointing = False + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.embed_tokens + + def set_input_embeddings(self, value): + self.embed_tokens = value + + @add_start_docstrings_to_model_forward(QWEN2_INPUTS_DOCSTRING) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, BaseModelOutputWithPast]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else self.config.use_cache + + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # retrieve input_ids and inputs_embeds + if input_ids is not None and inputs_embeds is not None: + raise ValueError("You cannot specify both decoder_input_ids and decoder_inputs_embeds at the same time") + elif input_ids is not None: + batch_size, seq_length = input_ids.shape + elif inputs_embeds is not None: + batch_size, seq_length, _ = inputs_embeds.shape + else: + raise ValueError("You have to specify either decoder_input_ids or decoder_inputs_embeds") + + if self.gradient_checkpointing and self.training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + past_key_values_length = 0 + + if use_cache: + use_legacy_cache = not isinstance(past_key_values, Cache) + if use_legacy_cache: + past_key_values = DynamicCache.from_legacy_cache(past_key_values) + past_key_values_length = past_key_values.get_usable_length(seq_length) + + if position_ids is None: + device = input_ids.device if input_ids is not None else inputs_embeds.device + position_ids = torch.arange( + past_key_values_length, seq_length + past_key_values_length, dtype=torch.long, device=device + ) + position_ids = position_ids.unsqueeze(0).view(-1, seq_length) + else: + position_ids = position_ids.view(-1, seq_length).long() + + if inputs_embeds is None: + inputs_embeds = self.embed_tokens(input_ids) + + if attention_mask is not None and self._attn_implementation == "flash_attention_2" and use_cache: + is_padding_right = attention_mask[:, -1].sum().item() != batch_size + if is_padding_right: + raise ValueError( + "You are attempting to perform batched generation with padding_side='right'" + " this may lead to unexpected behaviour for Flash Attention version of Qwen2. Make sure to " + " call `tokenizer.padding_side = 'left'` before tokenizing the input. " + ) + + if self._attn_implementation == "flash_attention_2": + # 2d mask is passed through the layers + attention_mask = attention_mask if (attention_mask is not None and 0 in attention_mask) else None + elif self._attn_implementation == "sdpa" and not output_attentions: + # output_attentions=True can not be supported when using SDPA, and we fall back on + # the manual implementation that requires a 4D causal mask in all cases. + attention_mask = _prepare_4d_causal_attention_mask_for_sdpa( + attention_mask, + (batch_size, seq_length), + inputs_embeds, + past_key_values_length, + sliding_window=self.config.sliding_window, + ) + else: + # 4d mask is passed through the layers + attention_mask = _prepare_4d_causal_attention_mask( + attention_mask, + (batch_size, seq_length), + inputs_embeds, + past_key_values_length, + sliding_window=self.config.sliding_window, + ) + + hidden_states = inputs_embeds + + # decoder layers + all_hidden_states = () if output_hidden_states else None + all_self_attns = () if output_attentions else None + next_decoder_cache = None + + for decoder_layer in self.layers: + if output_hidden_states: + all_hidden_states += (hidden_states,) + + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + decoder_layer.__call__, + hidden_states, + attention_mask, + position_ids, + past_key_values, + output_attentions, + use_cache, + ) + else: + layer_outputs = decoder_layer( + hidden_states, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_value=past_key_values, + output_attentions=output_attentions, + use_cache=use_cache, + ) + + hidden_states = layer_outputs[0] + + if use_cache: + next_decoder_cache = layer_outputs[2 if output_attentions else 1] + + if output_attentions: + all_self_attns += (layer_outputs[1],) + + hidden_states = self.norm(hidden_states) + + # add hidden states from the last decoder layer + if output_hidden_states: + all_hidden_states += (hidden_states,) + + next_cache = None + if use_cache: + next_cache = next_decoder_cache.to_legacy_cache() if use_legacy_cache else next_decoder_cache + + if not return_dict: + return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None) + return BaseModelOutputWithPast( + last_hidden_state=hidden_states, + past_key_values=next_cache, + hidden_states=all_hidden_states, + attentions=all_self_attns, + ) + + +class Qwen2ForCausalLM(Qwen2PreTrainedModel): + _tied_weights_keys = ["lm_head.weight"] + + def __init__(self, config): + super().__init__(config) + self.model = Qwen2Model(config) + self.vocab_size = config.vocab_size + self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False) + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.model.embed_tokens + + def set_input_embeddings(self, value): + self.model.embed_tokens = value + + def get_output_embeddings(self): + return self.lm_head + + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + def set_decoder(self, decoder): + self.model = decoder + + def get_decoder(self): + return self.model + + @add_start_docstrings_to_model_forward(QWEN2_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=CausalLMOutputWithPast, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, CausalLMOutputWithPast]: + r""" + Args: + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for computing the masked language modeling loss. Indices should either be in `[0, ..., + config.vocab_size]` or -100 (see `input_ids` docstring). Tokens with indices set to `-100` are ignored + (masked), the loss is only computed for the tokens with labels in `[0, ..., config.vocab_size]`. + + Returns: + + Example: + + ```python + >>> from transformers import AutoTokenizer, Qwen2ForCausalLM + + >>> model = Qwen2ForCausalLM.from_pretrained(PATH_TO_CONVERTED_WEIGHTS) + >>> tokenizer = AutoTokenizer.from_pretrained(PATH_TO_CONVERTED_TOKENIZER) + + >>> prompt = "Hey, are you conscious? Can you talk to me?" + >>> inputs = tokenizer(prompt, return_tensors="pt") + + >>> # Generate + >>> generate_ids = model.generate(inputs.input_ids, max_length=30) + >>> tokenizer.batch_decode(generate_ids, skip_special_tokens=True, clean_up_tokenization_spaces=False)[0] + "Hey, are you conscious? Can you talk to me?\nI'm not conscious, but I can talk to you." + ```""" + + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn) + outputs = self.model( + input_ids=input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + + hidden_states = outputs[0] + logits = self.lm_head(hidden_states) + logits = logits.float() + + loss = None + if labels is not None: + # Shift so that tokens < n predict n + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous() + # Flatten the tokens + loss_fct = CrossEntropyLoss() + shift_logits = shift_logits.view(-1, self.config.vocab_size) + shift_labels = shift_labels.view(-1) + # Enable model parallelism + shift_labels = shift_labels.to(shift_logits.device) + loss = loss_fct(shift_logits, shift_labels) + + if not return_dict: + output = (logits,) + outputs[1:] + return (loss,) + output if loss is not None else output + + return CausalLMOutputWithPast( + loss=loss, + logits=logits, + past_key_values=outputs.past_key_values, + hidden_states=outputs.hidden_states, + attentions=outputs.attentions, + ) + + def prepare_inputs_for_generation( + self, input_ids, past_key_values=None, attention_mask=None, inputs_embeds=None, **kwargs + ): + # Omit tokens covered by past_key_values + if past_key_values is not None: + if isinstance(past_key_values, Cache): + cache_length = past_key_values.get_seq_length() + past_length = past_key_values.seen_tokens + max_cache_length = past_key_values.get_max_length() + else: + cache_length = past_length = past_key_values[0][0].shape[2] + max_cache_length = None + + # Keep only the unprocessed tokens: + # 1 - If the length of the attention_mask exceeds the length of input_ids, then we are in a setting where + # some of the inputs are exclusively passed as part of the cache (e.g. when passing input_embeds as + # input) + if attention_mask is not None and attention_mask.shape[1] > input_ids.shape[1]: + input_ids = input_ids[:, -(attention_mask.shape[1] - past_length) :] + # 2 - If the past_length is smaller than input_ids', then input_ids holds all input tokens. We can discard + # input_ids based on the past_length. + elif past_length < input_ids.shape[1]: + input_ids = input_ids[:, past_length:] + # 3 - Otherwise (past_length >= input_ids.shape[1]), let's assume input_ids only has unprocessed tokens. + + # If we are about to go beyond the maximum cache length, we need to crop the input attention mask. + if ( + max_cache_length is not None + and attention_mask is not None + and cache_length + input_ids.shape[1] > max_cache_length + ): + attention_mask = attention_mask[:, -max_cache_length:] + + position_ids = kwargs.get("position_ids", None) + if attention_mask is not None and position_ids is None: + # create position_ids on the fly for batch generation + position_ids = attention_mask.long().cumsum(-1) - 1 + position_ids.masked_fill_(attention_mask == 0, 1) + if past_key_values: + position_ids = position_ids[:, -input_ids.shape[1] :] + + # if `inputs_embeds` are passed, we only want to use them in the 1st generation step + if inputs_embeds is not None and past_key_values is None: + model_inputs = {"inputs_embeds": inputs_embeds} + else: + model_inputs = {"input_ids": input_ids} + + model_inputs.update( + { + "position_ids": position_ids, + "past_key_values": past_key_values, + "use_cache": kwargs.get("use_cache"), + "attention_mask": attention_mask, + } + ) + return model_inputs + + @staticmethod + def _reorder_cache(past_key_values, beam_idx): + reordered_past = () + for layer_past in past_key_values: + reordered_past += ( + tuple(past_state.index_select(0, beam_idx.to(past_state.device)) for past_state in layer_past), + ) + return reordered_past + + +@add_start_docstrings( + """ + The Qwen2 Model transformer with a sequence classification head on top (linear layer). + + [`Qwen2ForSequenceClassification`] uses the last token in order to do the classification, as other causal models + (e.g. GPT-2) do. + + Since it does classification on the last token, it requires to know the position of the last token. If a + `pad_token_id` is defined in the configuration, it finds the last token that is not a padding token in each row. If + no `pad_token_id` is defined, it simply takes the last value in each row of the batch. Since it cannot guess the + padding tokens when `inputs_embeds` are passed instead of `input_ids`, it does the same (take the last value in + each row of the batch). + """, + QWEN2_START_DOCSTRING, +) +class Qwen2ForSequenceClassification(Qwen2PreTrainedModel): + def __init__(self, config): + super().__init__(config) + self.num_labels = config.num_labels + self.model = Qwen2Model(config) + self.score = nn.Linear(config.hidden_size, self.num_labels, bias=False) + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.model.embed_tokens + + def set_input_embeddings(self, value): + self.model.embed_tokens = value + + @add_start_docstrings_to_model_forward(QWEN2_INPUTS_DOCSTRING) + def forward( + self, + input_ids: torch.LongTensor = None, + attention_mask: Optional[torch.Tensor] = None, + position_ids: Optional[torch.LongTensor] = None, + past_key_values: Optional[List[torch.FloatTensor]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, SequenceClassifierOutputWithPast]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the sequence classification/regression loss. Indices should be in `[0, ..., + config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If + `config.num_labels > 1` a classification loss is computed (Cross-Entropy). + """ + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + transformer_outputs = self.model( + input_ids, + attention_mask=attention_mask, + position_ids=position_ids, + past_key_values=past_key_values, + inputs_embeds=inputs_embeds, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + hidden_states = transformer_outputs[0] + logits = self.score(hidden_states) + + if input_ids is not None: + batch_size = input_ids.shape[0] + else: + batch_size = inputs_embeds.shape[0] + + if self.config.pad_token_id is None and batch_size != 1: + raise ValueError("Cannot handle batch sizes > 1 if no padding token is defined.") + if self.config.pad_token_id is None: + sequence_lengths = -1 + else: + if input_ids is not None: + # if no pad token found, use modulo instead of reverse indexing for ONNX compatibility + sequence_lengths = torch.eq(input_ids, self.config.pad_token_id).int().argmax(-1) - 1 + sequence_lengths = sequence_lengths % input_ids.shape[-1] + sequence_lengths = sequence_lengths.to(logits.device) + else: + sequence_lengths = -1 + + pooled_logits = logits[torch.arange(batch_size, device=logits.device), sequence_lengths] + + loss = None + if labels is not None: + labels = labels.to(logits.device) + if self.config.problem_type is None: + if self.num_labels == 1: + self.config.problem_type = "regression" + elif self.num_labels > 1 and (labels.dtype == torch.long or labels.dtype == torch.int): + self.config.problem_type = "single_label_classification" + else: + self.config.problem_type = "multi_label_classification" + + if self.config.problem_type == "regression": + loss_fct = MSELoss() + if self.num_labels == 1: + loss = loss_fct(pooled_logits.squeeze(), labels.squeeze()) + else: + loss = loss_fct(pooled_logits, labels) + elif self.config.problem_type == "single_label_classification": + loss_fct = CrossEntropyLoss() + loss = loss_fct(pooled_logits.view(-1, self.num_labels), labels.view(-1)) + elif self.config.problem_type == "multi_label_classification": + loss_fct = BCEWithLogitsLoss() + loss = loss_fct(pooled_logits, labels) + if not return_dict: + output = (pooled_logits,) + transformer_outputs[1:] + return ((loss,) + output) if loss is not None else output + + return SequenceClassifierOutputWithPast( + loss=loss, + logits=pooled_logits, + past_key_values=transformer_outputs.past_key_values, + hidden_states=transformer_outputs.hidden_states, + attentions=transformer_outputs.attentions, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/qwen2/tokenization_qwen2.py b/venv/lib/python3.10/site-packages/transformers/models/qwen2/tokenization_qwen2.py new file mode 100644 index 0000000000000000000000000000000000000000..be2685430f649eab8bde99f217597afd282337c5 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/qwen2/tokenization_qwen2.py @@ -0,0 +1,339 @@ +# coding=utf-8 +# Copyright 2024 The Qwen team, Alibaba Group and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Tokenization classes for Qwen2.""" + +import json +import os +import unicodedata +from functools import lru_cache +from typing import Optional, Tuple + +import regex as re + +from ...tokenization_utils import AddedToken, PreTrainedTokenizer +from ...utils import logging + + +logger = logging.get_logger(__name__) + +VOCAB_FILES_NAMES = { + "vocab_file": "vocab.json", + "merges_file": "merges.txt", +} + + +MAX_MODEL_INPUT_SIZES = {"qwen/qwen-tokenizer": 32768} + +PRETOKENIZE_REGEX = r"""(?i:'s|'t|'re|'ve|'m|'ll|'d)|[^\r\n\p{L}\p{N}]?\p{L}+|\p{N}| ?[^\s\p{L}\p{N}]+[\r\n]*|\s*[\r\n]+|\s+(?!\S)|\s+""" + + +@lru_cache() +# Copied from transformers.models.gpt2.tokenization_gpt2.bytes_to_unicode +def bytes_to_unicode(): + """ + Returns list of utf-8 byte and a mapping to unicode strings. We specifically avoids mapping to whitespace/control + characters the bpe code barfs on. + + The reversible bpe codes work on unicode strings. This means you need a large # of unicode characters in your vocab + if you want to avoid UNKs. When you're at something like a 10B token dataset you end up needing around 5K for + decent coverage. This is a significant percentage of your normal, say, 32K bpe vocab. To avoid that, we want lookup + tables between utf-8 bytes and unicode strings. + """ + bs = ( + list(range(ord("!"), ord("~") + 1)) + list(range(ord("¡"), ord("¬") + 1)) + list(range(ord("®"), ord("ÿ") + 1)) + ) + cs = bs[:] + n = 0 + for b in range(2**8): + if b not in bs: + bs.append(b) + cs.append(2**8 + n) + n += 1 + cs = [chr(n) for n in cs] + return dict(zip(bs, cs)) + + +# Copied from transformers.models.gpt2.tokenization_gpt2.get_pairs +def get_pairs(word): + """ + Return set of symbol pairs in a word. + + Word is represented as tuple of symbols (symbols being variable-length strings). + """ + pairs = set() + prev_char = word[0] + for char in word[1:]: + pairs.add((prev_char, char)) + prev_char = char + return pairs + + +class Qwen2Tokenizer(PreTrainedTokenizer): + """ + Construct a Qwen2 tokenizer. Based on byte-level Byte-Pair-Encoding. + + Same with GPT2Tokenizer, this tokenizer has been trained to treat spaces like parts of the tokens so a word will + be encoded differently whether it is at the beginning of the sentence (without space) or not: + + ```python + >>> from transformers import Qwen2Tokenizer + + >>> tokenizer = Qwen2Tokenizer.from_pretrained("Qwen/Qwen-tokenizer") + >>> tokenizer("Hello world")["input_ids"] + [9707, 1879] + + >>> tokenizer(" Hello world")["input_ids"] + [21927, 1879] + ``` + This is expected. + + You should not use GPT2Tokenizer instead, because of the different pretokenization rules. + + This tokenizer inherits from [`PreTrainedTokenizer`] which contains most of the main methods. Users should refer to + this superclass for more information regarding those methods. + + Args: + vocab_file (`str`): + Path to the vocabulary file. + merges_file (`str`): + Path to the merges file. + errors (`str`, *optional*, defaults to `"replace"`): + Paradigm to follow when decoding bytes to UTF-8. See + [bytes.decode](https://docs.python.org/3/library/stdtypes.html#bytes.decode) for more information. + unk_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this + token instead. + bos_token (`str`, *optional*): + The beginning of sequence token. Not applicable for this tokenizer. + eos_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The end of sequence token. + pad_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The token used for padding, for example when batching sequences of different lengths. + clean_up_tokenization_spaces (`bool`, *optional*, defaults to `False`): + Whether or not the model should cleanup the spaces that were added when splitting the input text during the + tokenization process. Not applicable to this tokenizer, since tokenization does not add spaces. + split_special_tokens (`bool`, *optional*, defaults to `False`): + Whether or not the special tokens should be split during the tokenization process. The default behavior is + to not split special tokens. This means that if `<|endoftext|>` is the `eos_token`, then `tokenizer.tokenize("<|endoftext|>") = + ['<|endoftext|>`]. Otherwise, if `split_special_tokens=True`, then `tokenizer.tokenize("<|endoftext|>")` will be give `['<', + '|', 'endo', 'ft', 'ext', '|', '>']`. This argument is only supported for `slow` tokenizers for the moment. + """ + + vocab_files_names = VOCAB_FILES_NAMES + model_input_names = ["input_ids", "attention_mask"] + + def __init__( + self, + vocab_file, + merges_file, + errors="replace", + unk_token="<|endoftext|>", + bos_token=None, + eos_token="<|endoftext|>", + pad_token="<|endoftext|>", + clean_up_tokenization_spaces=False, + split_special_tokens=False, + **kwargs, + ): + # Qwen vocab does not contain control tokens; added tokens need to be special + bos_token = ( + AddedToken(bos_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(bos_token, str) + else bos_token + ) + eos_token = ( + AddedToken(eos_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(eos_token, str) + else eos_token + ) + unk_token = ( + AddedToken(unk_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(unk_token, str) + else unk_token + ) + pad_token = ( + AddedToken(pad_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(pad_token, str) + else pad_token + ) + + with open(vocab_file, encoding="utf-8") as vocab_handle: + self.encoder = json.load(vocab_handle) + self.decoder = {v: k for k, v in self.encoder.items()} + self.errors = errors # how to handle errors in decoding + self.byte_encoder = bytes_to_unicode() + self.byte_decoder = {v: k for k, v in self.byte_encoder.items()} + bpe_merges = [] + with open(merges_file, encoding="utf-8") as merges_handle: + for i, line in enumerate(merges_handle): + line = line.strip() + if (i == 0 and line.startswith("#version:")) or not line: + continue + bpe_merges.append(tuple(line.split())) + self.bpe_ranks = dict(zip(bpe_merges, range(len(bpe_merges)))) + # NOTE: the cache can grow without bound and will get really large for long running processes + # (esp. for texts of language that do not use space between word, e.g. Chinese); technically + # not a memory leak but appears as one. + # GPT2Tokenizer has the same problem, so let's be consistent. + self.cache = {} + + self.pat = re.compile(PRETOKENIZE_REGEX) + + if kwargs.get("add_prefix_space", False): + logger.warning_once( + f"{self.__class__.__name} does not support `add_prefix_space`, setting it to True has no effect." + ) + + super().__init__( + errors=errors, + bos_token=bos_token, + eos_token=eos_token, + pad_token=pad_token, + unk_token=unk_token, + clean_up_tokenization_spaces=clean_up_tokenization_spaces, + split_special_tokens=split_special_tokens, + **kwargs, + ) + + @property + def vocab_size(self) -> int: + return len(self.encoder) + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer.get_vocab + def get_vocab(self): + return dict(self.encoder, **self.added_tokens_encoder) + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer.bpe + def bpe(self, token): + if token in self.cache: + return self.cache[token] + word = tuple(token) + pairs = get_pairs(word) + + if not pairs: + return token + + while True: + bigram = min(pairs, key=lambda pair: self.bpe_ranks.get(pair, float("inf"))) + if bigram not in self.bpe_ranks: + break + first, second = bigram + new_word = [] + i = 0 + while i < len(word): + try: + j = word.index(first, i) + except ValueError: + new_word.extend(word[i:]) + break + else: + new_word.extend(word[i:j]) + i = j + + if word[i] == first and i < len(word) - 1 and word[i + 1] == second: + new_word.append(first + second) + i += 2 + else: + new_word.append(word[i]) + i += 1 + new_word = tuple(new_word) + word = new_word + if len(word) == 1: + break + else: + pairs = get_pairs(word) + word = " ".join(word) + self.cache[token] = word + return word + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer._tokenize + def _tokenize(self, text): + """Tokenize a string.""" + bpe_tokens = [] + for token in re.findall(self.pat, text): + token = "".join( + self.byte_encoder[b] for b in token.encode("utf-8") + ) # Maps all our bytes to unicode strings, avoiding control tokens of the BPE (spaces in our case) + bpe_tokens.extend(bpe_token for bpe_token in self.bpe(token).split(" ")) + return bpe_tokens + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer._convert_token_to_id + def _convert_token_to_id(self, token): + """Converts a token (str) in an id using the vocab.""" + return self.encoder.get(token, self.encoder.get(self.unk_token)) + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer._convert_id_to_token + def _convert_id_to_token(self, index): + """Converts an index (integer) in a token (str) using the vocab.""" + return self.decoder.get(index) + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer.convert_tokens_to_string + def convert_tokens_to_string(self, tokens): + """Converts a sequence of tokens (string) in a single string.""" + text = "".join(tokens) + text = bytearray([self.byte_decoder[c] for c in text]).decode("utf-8", errors=self.errors) + return text + + def decode( + self, + token_ids, + skip_special_tokens: bool = False, + clean_up_tokenization_spaces: Optional[bool] = False, + spaces_between_special_tokens: bool = False, + **kwargs, + ) -> str: + # `spaces_between_special_tokens` defaults to True for _decode in slow tokenizers + # and cannot be configured elsewhere, but it should default to False for Qwen2Tokenizer + return super().decode( + token_ids, + skip_special_tokens=skip_special_tokens, + clean_up_tokenization_spaces=clean_up_tokenization_spaces, + spaces_between_special_tokens=spaces_between_special_tokens, + **kwargs, + ) + + # Copied from transformers.models.gpt2.tokenization_gpt2.GPT2Tokenizer.save_vocabulary + def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]: + if not os.path.isdir(save_directory): + logger.error(f"Vocabulary path ({save_directory}) should be a directory") + return + vocab_file = os.path.join( + save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["vocab_file"] + ) + merge_file = os.path.join( + save_directory, (filename_prefix + "-" if filename_prefix else "") + VOCAB_FILES_NAMES["merges_file"] + ) + + with open(vocab_file, "w", encoding="utf-8") as f: + f.write(json.dumps(self.encoder, indent=2, sort_keys=True, ensure_ascii=False) + "\n") + + index = 0 + with open(merge_file, "w", encoding="utf-8") as writer: + writer.write("#version: 0.2\n") + for bpe_tokens, token_index in sorted(self.bpe_ranks.items(), key=lambda kv: kv[1]): + if index != token_index: + logger.warning( + f"Saving vocabulary to {merge_file}: BPE merge indices are not consecutive." + " Please check that the tokenizer is not corrupted!" + ) + index = token_index + writer.write(" ".join(bpe_tokens) + "\n") + index += 1 + + return vocab_file, merge_file + + def prepare_for_tokenization(self, text, **kwargs): + text = unicodedata.normalize("NFC", text) + return (text, kwargs) diff --git a/venv/lib/python3.10/site-packages/transformers/models/qwen2/tokenization_qwen2_fast.py b/venv/lib/python3.10/site-packages/transformers/models/qwen2/tokenization_qwen2_fast.py new file mode 100644 index 0000000000000000000000000000000000000000..82e3073788679c132cdc0c89e0f9749cb173bbf4 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/qwen2/tokenization_qwen2_fast.py @@ -0,0 +1,134 @@ +# coding=utf-8 +# Copyright 2024 The Qwen team, Alibaba Group and The HuggingFace Inc. team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Tokenization classes for Qwen2.""" + +from typing import Optional, Tuple + +from ...tokenization_utils import AddedToken +from ...tokenization_utils_fast import PreTrainedTokenizerFast +from ...utils import logging +from .tokenization_qwen2 import Qwen2Tokenizer + + +logger = logging.get_logger(__name__) + +VOCAB_FILES_NAMES = { + "vocab_file": "vocab.json", + "merges_file": "merges.txt", + "tokenizer_file": "tokenizer.json", +} + + +MAX_MODEL_INPUT_SIZES = {"qwen/qwen-tokenizer": 32768} + + +class Qwen2TokenizerFast(PreTrainedTokenizerFast): + """ + Construct a "fast" Qwen2 tokenizer (backed by HuggingFace's *tokenizers* library). Based on byte-level + Byte-Pair-Encoding. + + Same with GPT2Tokenizer, this tokenizer has been trained to treat spaces like parts of the tokens so a word will + be encoded differently whether it is at the beginning of the sentence (without space) or not: + + ```python + >>> from transformers import Qwen2TokenizerFast + + >>> tokenizer = Qwen2TokenizerFast.from_pretrained("Qwen/Qwen-tokenizer") + >>> tokenizer("Hello world")["input_ids"] + [9707, 1879] + + >>> tokenizer(" Hello world")["input_ids"] + [21927, 1879] + ``` + This is expected. + + This tokenizer inherits from [`PreTrainedTokenizerFast`] which contains most of the main methods. Users should + refer to this superclass for more information regarding those methods. + + Args: + vocab_file (`str`, *optional*): + Path to the vocabulary file. + merges_file (`str`, *optional*): + Path to the merges file. + tokenizer_file (`str`, *optional*): + Path to [tokenizers](https://github.com/huggingface/tokenizers) file (generally has a .json extension) that + contains everything needed to load the tokenizer. + unk_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The unknown token. A token that is not in the vocabulary cannot be converted to an ID and is set to be this + token instead. Not applicable to this tokenizer. + bos_token (`str`, *optional*): + The beginning of sequence token. Not applicable for this tokenizer. + eos_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The end of sequence token. + pad_token (`str`, *optional*, defaults to `"<|endoftext|>"`): + The token used for padding, for example when batching sequences of different lengths. + """ + + vocab_files_names = VOCAB_FILES_NAMES + model_input_names = ["input_ids", "attention_mask"] + slow_tokenizer_class = Qwen2Tokenizer + + def __init__( + self, + vocab_file=None, + merges_file=None, + tokenizer_file=None, + unk_token="<|endoftext|>", + bos_token=None, + eos_token="<|endoftext|>", + pad_token="<|endoftext|>", + **kwargs, + ): + # We need to at least pass vocab_file and merges_file to base class + # in case a slow tokenizer needs to be initialized; other can be + # configured through files. + # following GPT2TokenizerFast, also adding unk_token, bos_token, and eos_token + + bos_token = ( + AddedToken(bos_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(bos_token, str) + else bos_token + ) + eos_token = ( + AddedToken(eos_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(eos_token, str) + else eos_token + ) + unk_token = ( + AddedToken(unk_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(unk_token, str) + else unk_token + ) + pad_token = ( + AddedToken(pad_token, lstrip=False, rstrip=False, special=True, normalized=False) + if isinstance(pad_token, str) + else pad_token + ) + + super().__init__( + vocab_file, + merges_file, + tokenizer_file=tokenizer_file, + unk_token=unk_token, + bos_token=bos_token, + eos_token=eos_token, + pad_token=pad_token, + **kwargs, + ) + + # Copied from transformers.models.gpt2.tokenization_gpt2_fast.GPT2TokenizerFast.save_vocabulary + def save_vocabulary(self, save_directory: str, filename_prefix: Optional[str] = None) -> Tuple[str]: + files = self._tokenizer.model.save(save_directory, name=filename_prefix) + return tuple(files) diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/__init__.py b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e68eefe9f8aaa5e73a77cc67b89128cfb8c2a649 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__init__.py @@ -0,0 +1,60 @@ +# Copyright 2023 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import TYPE_CHECKING + +from ...utils import ( + OptionalDependencyNotAvailable, + _LazyModule, + is_torch_available, +) + + +_import_structure = { + "configuration_rwkv": ["RWKV_PRETRAINED_CONFIG_ARCHIVE_MAP", "RwkvConfig", "RwkvOnnxConfig"], +} + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_rwkv"] = [ + "RWKV_PRETRAINED_MODEL_ARCHIVE_LIST", + "RwkvForCausalLM", + "RwkvModel", + "RwkvPreTrainedModel", + ] + + +if TYPE_CHECKING: + from .configuration_rwkv import RWKV_PRETRAINED_CONFIG_ARCHIVE_MAP, RwkvConfig, RwkvOnnxConfig + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_rwkv import ( + RWKV_PRETRAINED_MODEL_ARCHIVE_LIST, + RwkvForCausalLM, + RwkvModel, + RwkvPreTrainedModel, + ) +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/__init__.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..ee1ea63e3c45c7b68d414f9506b81e94c468e8d3 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/__init__.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/configuration_rwkv.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/configuration_rwkv.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..fa43de4005034f4be2df036fb7a89da130f091c3 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/configuration_rwkv.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/convert_rwkv_checkpoint_to_hf.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/convert_rwkv_checkpoint_to_hf.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..efcb4bbe96c75b86ef8867021da1dbb9a65c8a5f Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/convert_rwkv_checkpoint_to_hf.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/modeling_rwkv.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/modeling_rwkv.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..ec725a76de3098f9077a22ada9829a58b41d9ca4 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/rwkv/__pycache__/modeling_rwkv.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/configuration_rwkv.py b/venv/lib/python3.10/site-packages/transformers/models/rwkv/configuration_rwkv.py new file mode 100644 index 0000000000000000000000000000000000000000..5e0598dad5c424fafd47ce1061b2d3d840705e4d --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/rwkv/configuration_rwkv.py @@ -0,0 +1,120 @@ +# coding=utf-8 +# Copyright 2023 The OpenAI Team Authors and HuggingFace Inc. team. +# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" RWKV configuration""" + +from ...configuration_utils import PretrainedConfig +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +from ..deprecated._archive_maps import RWKV_PRETRAINED_CONFIG_ARCHIVE_MAP # noqa: F401, E402 + + +class RwkvConfig(PretrainedConfig): + """ + This is the configuration class to store the configuration of a [`RwkvModel`]. It is used to instantiate a RWKV + model according to the specified arguments, defining the model architecture. Instantiating a configuration with the + defaults will yield a similar configuration to that of the RWVK-4 + [RWKV/rwkv-4-169m-pile](https://huggingface.co/RWKV/rwkv-4-169m-pile) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + + Args: + vocab_size (`int`, *optional*, defaults to 50277): + Vocabulary size of the RWKV model. Defines the number of different tokens that can be represented by the + `inputs_ids` passed when calling [`RwkvModel`]. + context_length (`int`, *optional*, defaults to 1024): + The maximum sequence length that this model can be used with in a single forward (using it in RNN mode + lets use any sequence length). + hidden_size (`int`, *optional*, defaults to 4096): + Dimensionality of the embeddings and hidden states. + num_hidden_layers (`int`, *optional*, defaults to 32): + Number of hidden layers in the model. + attention_hidden_size (`int`, *optional*): + Dimensionality of the attention hidden states. Will default to `hidden_size` if unset. + intermediate_size (`int`, *optional*): + Dimensionality of the inner feed-forward layers. Will default to 4 times `hidden_size` if unset. + layer_norm_epsilon (`float`, *optional*, defaults to 1e-05): + The epsilon to use in the layer normalization layers. + bos_token_id (`int`, *optional*, defaults to 0): + The id of the beginning of sentence token in the vocabulary. Defaults to 0 as RWKV uses the same tokenizer + as GPTNeoX. + eos_token_id (`int`, *optional*, defaults to 0): + The id of the end of sentence token in the vocabulary. Defaults to 0 as RWKV uses the same tokenizer as + GPTNeoX. + rescale_every (`int`, *optional*, defaults to 6): + At inference, the hidden states (and weights of the correponding output layers) are divided by 2 every + `rescale_every` layer. If set to 0 or a negative number, no rescale is done. + tie_word_embeddings (`bool`, *optional*, defaults to `False`): + Whether or not to tie the word embeddings with the input token embeddings. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last state. + + + Example: + + ```python + >>> from transformers import RwkvConfig, RwkvModel + + >>> # Initializing a Rwkv configuration + >>> configuration = RwkvConfig() + + >>> # Initializing a model (with random weights) from the configuration + >>> model = RwkvModel(configuration) + + >>> # Accessing the model configuration + >>> configuration = model.config + ```""" + + model_type = "rwkv" + attribute_map = {"max_position_embeddings": "context_length"} + + def __init__( + self, + vocab_size=50277, + context_length=1024, + hidden_size=4096, + num_hidden_layers=32, + attention_hidden_size=None, + intermediate_size=None, + layer_norm_epsilon=1e-5, + bos_token_id=0, + eos_token_id=0, + rescale_every=6, + tie_word_embeddings=False, + use_cache=True, + **kwargs, + ): + self.vocab_size = vocab_size + self.context_length = context_length + self.hidden_size = hidden_size + self.num_hidden_layers = num_hidden_layers + self.attention_hidden_size = attention_hidden_size if attention_hidden_size is not None else hidden_size + self.intermediate_size = intermediate_size if intermediate_size is not None else 4 * hidden_size + self.layer_norm_epsilon = layer_norm_epsilon + self.rescale_every = rescale_every + self.use_cache = use_cache + + self.bos_token_id = bos_token_id + self.eos_token_id = eos_token_id + + super().__init__( + tie_word_embeddings=tie_word_embeddings, bos_token_id=bos_token_id, eos_token_id=eos_token_id, **kwargs + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/convert_rwkv_checkpoint_to_hf.py b/venv/lib/python3.10/site-packages/transformers/models/rwkv/convert_rwkv_checkpoint_to_hf.py new file mode 100644 index 0000000000000000000000000000000000000000..b340b9f028b3d736e4da544a20ecfef9c88e714f --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/rwkv/convert_rwkv_checkpoint_to_hf.py @@ -0,0 +1,201 @@ +# coding=utf-8 +# Copyright 2023 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""Convert a RWKV checkpoint from BlinkDL to the Hugging Face format.""" + + +import argparse +import gc +import json +import os +import re + +import torch +from huggingface_hub import hf_hub_download + +from transformers import AutoModelForCausalLM, AutoTokenizer, PreTrainedTokenizerFast, RwkvConfig +from transformers.modeling_utils import WEIGHTS_INDEX_NAME, shard_checkpoint + + +NUM_HIDDEN_LAYERS_MAPPING = { + "169M": 12, + "430M": 24, + "1B5": 24, + "3B": 32, + "7B": 32, + "14B": 40, +} + +HIDEN_SIZE_MAPPING = { + "169M": 768, + "430M": 1024, + "1B5": 2048, + "3B": 2560, + "7B": 4096, + "14B": 5120, +} + + +def convert_state_dict(state_dict): + state_dict_keys = list(state_dict.keys()) + for name in state_dict_keys: + weight = state_dict.pop(name) + # emb -> embedding + if name.startswith("emb."): + name = name.replace("emb.", "embeddings.") + # ln_0 -> pre_ln (only present at block 0) + if name.startswith("blocks.0.ln0"): + name = name.replace("blocks.0.ln0", "blocks.0.pre_ln") + # att -> attention + name = re.sub(r"blocks\.(\d+)\.att", r"blocks.\1.attention", name) + # ffn -> feed_forward + name = re.sub(r"blocks\.(\d+)\.ffn", r"blocks.\1.feed_forward", name) + # time_mix_k -> time_mix_key and reshape + if name.endswith(".time_mix_k"): + name = name.replace(".time_mix_k", ".time_mix_key") + # time_mix_v -> time_mix_value and reshape + if name.endswith(".time_mix_v"): + name = name.replace(".time_mix_v", ".time_mix_value") + # time_mix_r -> time_mix_key and reshape + if name.endswith(".time_mix_r"): + name = name.replace(".time_mix_r", ".time_mix_receptance") + + if name != "head.weight": + name = "rwkv." + name + + state_dict[name] = weight + return state_dict + + +def convert_rmkv_checkpoint_to_hf_format( + repo_id, checkpoint_file, output_dir, size=None, tokenizer_file=None, push_to_hub=False, model_name=None +): + # 1. If possible, build the tokenizer. + if tokenizer_file is None: + print("No `--tokenizer_file` provided, we will use the default tokenizer.") + vocab_size = 50277 + tokenizer = AutoTokenizer.from_pretrained("EleutherAI/gpt-neox-20b") + else: + tokenizer = PreTrainedTokenizerFast(tokenizer_file=tokenizer_file) + vocab_size = len(tokenizer) + tokenizer.save_pretrained(output_dir) + + # 2. Build the config + possible_sizes = list(NUM_HIDDEN_LAYERS_MAPPING.keys()) + if size is None: + # Try to infer size from the checkpoint name + for candidate in possible_sizes: + if candidate in checkpoint_file: + size = candidate + break + if size is None: + raise ValueError("Could not infer the size, please provide it with the `--size` argument.") + if size not in possible_sizes: + raise ValueError(f"`size` should be one of {possible_sizes}, got {size}.") + + config = RwkvConfig( + vocab_size=vocab_size, + num_hidden_layers=NUM_HIDDEN_LAYERS_MAPPING[size], + hidden_size=HIDEN_SIZE_MAPPING[size], + ) + config.save_pretrained(output_dir) + + # 3. Download model file then convert state_dict + model_file = hf_hub_download(repo_id, checkpoint_file) + state_dict = torch.load(model_file, map_location="cpu") + state_dict = convert_state_dict(state_dict) + + # 4. Split in shards and save + shards, index = shard_checkpoint(state_dict) + for shard_file, shard in shards.items(): + torch.save(shard, os.path.join(output_dir, shard_file)) + + if index is not None: + save_index_file = os.path.join(output_dir, WEIGHTS_INDEX_NAME) + # Save the index as well + with open(save_index_file, "w", encoding="utf-8") as f: + content = json.dumps(index, indent=2, sort_keys=True) + "\n" + f.write(content) + + # 5. Clean up shards (for some reason the file PyTorch saves take the same space as the whole state_dict + print( + "Cleaning up shards. This may error with an OOM error, it this is the case don't worry you still have converted the model." + ) + shard_files = list(shards.keys()) + + del state_dict + del shards + gc.collect() + + for shard_file in shard_files: + state_dict = torch.load(os.path.join(output_dir, shard_file)) + torch.save({k: v.cpu().clone() for k, v in state_dict.items()}, os.path.join(output_dir, shard_file)) + + del state_dict + gc.collect() + + if push_to_hub: + if model_name is None: + raise ValueError("Please provide a `model_name` to push the model to the Hub.") + model = AutoModelForCausalLM.from_pretrained(output_dir) + model.push_to_hub(model_name, max_shard_size="2GB") + tokenizer.push_to_hub(model_name) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + # Required parameters + parser.add_argument( + "--repo_id", default=None, type=str, required=True, help="Repo ID from which to pull the checkpoint." + ) + parser.add_argument( + "--checkpoint_file", default=None, type=str, required=True, help="Name of the checkpoint file in the repo." + ) + parser.add_argument( + "--output_dir", default=None, type=str, required=True, help="Where to save the converted model." + ) + parser.add_argument( + "--tokenizer_file", + default=None, + type=str, + help="Path to the tokenizer file to use (if not provided, only the model is converted).", + ) + parser.add_argument( + "--size", + default=None, + type=str, + help="Size of the model. Will be inferred from the `checkpoint_file` if not passed.", + ) + parser.add_argument( + "--push_to_hub", + action="store_true", + help="Push to the Hub the converted model.", + ) + parser.add_argument( + "--model_name", + default=None, + type=str, + help="Name of the pushed model on the Hub, including the username / organization.", + ) + + args = parser.parse_args() + convert_rmkv_checkpoint_to_hf_format( + args.repo_id, + args.checkpoint_file, + args.output_dir, + size=args.size, + tokenizer_file=args.tokenizer_file, + push_to_hub=args.push_to_hub, + model_name=args.model_name, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/rwkv/modeling_rwkv.py b/venv/lib/python3.10/site-packages/transformers/models/rwkv/modeling_rwkv.py new file mode 100644 index 0000000000000000000000000000000000000000..79e06d141bb846498cd291c8c91455919da9a4b7 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/rwkv/modeling_rwkv.py @@ -0,0 +1,862 @@ +# coding=utf-8 +# Copyright 2023 Bo Peng and HuggingFace Inc. team. +# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +"""PyTorch RWKV model.""" + +import math +from dataclasses import dataclass +from pathlib import Path +from typing import List, Optional, Tuple, Union + +import torch +import torch.utils.checkpoint +from torch import nn +from torch.nn import CrossEntropyLoss + +from ...modeling_utils import PreTrainedModel +from ...utils import ( + ModelOutput, + add_code_sample_docstrings, + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_bitsandbytes_available, + is_ninja_available, + is_torch_cuda_available, + logging, +) +from .configuration_rwkv import RwkvConfig + + +logger = logging.get_logger(__name__) + +_CHECKPOINT_FOR_DOC = "RWKV/rwkv-4-169m-pile" +_CONFIG_FOR_DOC = "RwkvConfig" + + +from ..deprecated._archive_maps import RWKV_PRETRAINED_MODEL_ARCHIVE_LIST # noqa: F401, E402 + + +rwkv_cuda_kernel = None + + +def load_wkv_cuda_kernel(context_length): + from torch.utils.cpp_extension import load as load_kernel + + global rwkv_cuda_kernel + + kernel_folder = Path(__file__).resolve().parent.parent.parent / "kernels" / "rwkv" + cuda_kernel_files = [kernel_folder / f for f in ["wkv_op.cpp", "wkv_cuda.cu", "wkv_cuda_bf16.cu"]] + + # Only load the kernel if it's not been loaded yet or if we changed the context length + if rwkv_cuda_kernel is not None and rwkv_cuda_kernel.max_seq_length == context_length: + return + + logger.info(f"Loading CUDA kernel for RWKV at context length of {context_length}.") + + flags = [ + "-res-usage", + "--maxrregcount 60", + "--use_fast_math", + "-O3", + "-Xptxas -O3", + "--extra-device-vectorization", + f"-DTmax={context_length}", + ] + rwkv_cuda_kernel = load_kernel( + name=f"wkv_{context_length}", + sources=cuda_kernel_files, + verbose=(logging.get_verbosity() == logging.DEBUG), + extra_cuda_cflags=flags, + ) + rwkv_cuda_kernel.max_seq_length = context_length + + +class RwkvLinearAttention(torch.autograd.Function): + @staticmethod + def forward(ctx, time_decay, time_first, key, value, state=None, return_state=False): + batch_size, seq_len, hidden_size = key.size() + if seq_len > rwkv_cuda_kernel.max_seq_length: + raise ValueError( + f"Cannot process a batch with {seq_len} tokens at the same time, use a maximum of " + f"{rwkv_cuda_kernel.max_seq_length} with this model." + ) + if batch_size * hidden_size % min(hidden_size, 32) != 0: + raise ValueError( + f"The product of batch size ({batch_size}) and hidden size ({hidden_size}) needs to be a round " + f"multiple of {min(hidden_size, 32)}." + ) + + ctx.input_dtype = key.dtype + + if ( + time_decay.device.type != "cuda" + or time_first.device.type != "cuda" + or key.device.type != "cuda" + or value.device.type != "cuda" + ): + raise ValueError("Calling the CUDA kernel for wkv attention requires all tensors to be on CUDA devices.") + + time_decay = -torch.exp(time_decay.float().contiguous()) + if key.dtype == torch.float16: + time_first = time_first.float() + key = key.float() + value = value.float() + time_first = time_first.contiguous() + key = key.contiguous() + value = value.contiguous() + # The CUDA kernel will fill this tensor. + output = torch.empty_like(key, memory_format=torch.contiguous_format) + if return_state or state is not None: + if state is None: + state = torch.zeros( + batch_size, + hidden_size, + 3, + dtype=torch.float32, + device=key.device, + memory_format=torch.contiguous_format, + ) + state[:, :, 2] -= 1e38 + else: + state = torch.cat([s.unsqueeze(2) for s in state], dim=2).contiguous() + if key.dtype == torch.bfloat16: + forward_func = rwkv_cuda_kernel.forward_with_state_bf16 + else: + forward_func = rwkv_cuda_kernel.forward_with_state + forward_func(time_decay, time_first, key, value, output, state) + else: + forward_func = rwkv_cuda_kernel.forward_bf16 if key.dtype == torch.bfloat16 else rwkv_cuda_kernel.forward + forward_func(time_decay, time_first, key, value, output) + + ctx.save_for_backward(time_decay, time_first, key, value, output) + + if state is not None: + state = [s.squeeze(2) for s in torch.chunk(state, 3, dim=2)] + + return output.to(ctx.input_dtype), state + + @staticmethod + # g stands for grad + def backward(ctx, g_output, g_state=None): + input_dtype = ctx.input_dtype + + time_decay, time_first, key, value, output = ctx.saved_tensors + # The CUDA kernel will fill those tensors. + g_time_decay = torch.empty_like( + time_decay, + memory_format=torch.contiguous_format, + dtype=torch.bfloat16 if input_dtype == torch.bfloat16 else torch.float32, + ) + g_time_first = torch.empty_like(time_first, memory_format=torch.contiguous_format) + g_key = torch.empty_like(key, memory_format=torch.contiguous_format) + g_value = torch.empty_like(value, memory_format=torch.contiguous_format) + + if input_dtype == torch.float16: + g_output = g_output.float() + backward_func = rwkv_cuda_kernel.backward_bf16 if input_dtype == torch.bfloat16 else rwkv_cuda_kernel.backward + backward_func( + time_decay, + time_first, + key, + value, + output, + g_output.contiguous(), + g_time_decay, + g_time_first, + g_key, + g_value, + ) + + return ( + g_time_decay.to(input_dtype), + g_time_first.to(input_dtype), + g_key.to(input_dtype), + g_value.to(input_dtype), + None, + None, + ) + + +def rwkv_linear_attention_cpu(time_decay, time_first, key, value, state=None, return_state=False): + # For CPU fallback. Will be slower and probably take more memory than the custom CUDA kernel if not executed + # within a torch.no_grad. + _, seq_length, _ = key.size() + output = torch.zeros_like(key) + + if state is None: + num_state = torch.zeros_like(key[:, 0], dtype=torch.float32) + den_state = torch.zeros_like(key[:, 0], dtype=torch.float32) + max_state = torch.zeros_like(key[:, 0], dtype=torch.float32) - 1e38 + else: + num_state, den_state, max_state = state + # For numerical stability + # real_numerator_state = num_state * torch.exp(max_state) + # real_denominator_state = den_state * torch.exp(max_state) + + time_decay = -torch.exp(time_decay) + + for current_index in range(seq_length): + current_key = key[:, current_index].float() + current_value = value[:, current_index] + + # wkv computation at time t + max_for_output = torch.maximum(max_state, current_key + time_first) + e1 = torch.exp(max_state - max_for_output) + e2 = torch.exp(current_key + time_first - max_for_output) + numerator = e1 * num_state + e2 * current_value + denominator = e1 * den_state + e2 + output[:, current_index] = (numerator / denominator).to(output.dtype) + + # Update state for next iteration + max_for_state = torch.maximum(max_state + time_decay, current_key) + e1 = torch.exp(max_state + time_decay - max_for_state) + e2 = torch.exp(current_key - max_for_state) + num_state = e1 * num_state + e2 * current_value + den_state = e1 * den_state + e2 + max_state = max_for_state + + if return_state or state is not None: + state = [num_state, den_state, max_state] + + return output, state + + +def rwkv_linear_attention(time_decay, time_first, key, value, state=None, return_state=False): + no_cuda = any(t.device.type != "cuda" for t in [time_decay, time_first, key, value]) + # Launching the CUDA kernel for just one token will actually be slower (there is no for loop in the CPU version + # in this case). + one_token = key.size(1) == 1 + if rwkv_cuda_kernel is None or no_cuda or one_token: + return rwkv_linear_attention_cpu(time_decay, time_first, key, value, state=state, return_state=return_state) + else: + return RwkvLinearAttention.apply(time_decay, time_first, key, value, state, return_state) + + +class RwkvSelfAttention(nn.Module): + def __init__(self, config, layer_id=0): + super().__init__() + self.config = config + kernel_loaded = rwkv_cuda_kernel is not None and rwkv_cuda_kernel.max_seq_length == config.context_length + if is_ninja_available() and is_torch_cuda_available() and not kernel_loaded: + try: + load_wkv_cuda_kernel(config.context_length) + except Exception: + logger.info("Could not load the custom CUDA kernel for RWKV attention.") + self.layer_id = layer_id + hidden_size = config.hidden_size + attention_hidden_size = ( + config.attention_hidden_size if config.attention_hidden_size is not None else hidden_size + ) + self.attention_hidden_size = attention_hidden_size + + self.time_decay = nn.Parameter(torch.empty(attention_hidden_size)) + self.time_first = nn.Parameter(torch.empty(attention_hidden_size)) + + self.time_mix_key = nn.Parameter(torch.empty(1, 1, hidden_size)) + self.time_mix_value = nn.Parameter(torch.empty(1, 1, hidden_size)) + self.time_mix_receptance = nn.Parameter(torch.empty(1, 1, hidden_size)) + + self.time_shift = nn.ZeroPad2d((0, 0, 1, -1)) + self.key = nn.Linear(hidden_size, attention_hidden_size, bias=False) + self.value = nn.Linear(hidden_size, attention_hidden_size, bias=False) + self.receptance = nn.Linear(hidden_size, attention_hidden_size, bias=False) + self.output = nn.Linear(attention_hidden_size, hidden_size, bias=False) + + # TODO: maybe jit, otherwise move inside forward + def extract_key_value(self, hidden, state=None): + # Mix hidden with the previous timestep to produce key, value, receptance + if hidden.size(1) == 1 and state is not None: + shifted = state[1][:, :, self.layer_id] + else: + shifted = self.time_shift(hidden) + if state is not None: + shifted[:, 0] = state[1][:, :, self.layer_id] + key = hidden * self.time_mix_key + shifted * (1 - self.time_mix_key) + value = hidden * self.time_mix_value + shifted * (1 - self.time_mix_value) + receptance = hidden * self.time_mix_receptance + shifted * (1 - self.time_mix_receptance) + + key = self.key(key) + value = self.value(value) + receptance = torch.sigmoid(self.receptance(receptance)) + if state is not None: + state[1][:, :, self.layer_id] = hidden[:, -1] + return receptance, key, value, state + + def forward(self, hidden, state=None, use_cache=False): + receptance, key, value, state = self.extract_key_value(hidden, state=state) + layer_state = tuple(s[:, :, self.layer_id] for s in state[2:]) if state is not None else None + rwkv, layer_state = rwkv_linear_attention( + self.time_decay, + self.time_first, + key, + value, + state=layer_state, + return_state=use_cache, + ) + + if layer_state is not None: + state[2][:, :, self.layer_id] = layer_state[0] + state[3][:, :, self.layer_id] = layer_state[1] + state[4][:, :, self.layer_id] = layer_state[2] + + return self.output(receptance * rwkv), state + + +class RwkvFeedForward(nn.Module): + def __init__(self, config, layer_id=0): + super().__init__() + self.config = config + self.layer_id = layer_id + hidden_size = config.hidden_size + intermediate_size = ( + config.intermediate_size if config.intermediate_size is not None else 4 * config.hidden_size + ) + + self.time_shift = nn.ZeroPad2d((0, 0, 1, -1)) + self.time_mix_key = nn.Parameter(torch.empty(1, 1, hidden_size)) + self.time_mix_receptance = nn.Parameter(torch.empty(1, 1, hidden_size)) + + self.key = nn.Linear(hidden_size, intermediate_size, bias=False) + self.receptance = nn.Linear(hidden_size, hidden_size, bias=False) + self.value = nn.Linear(intermediate_size, hidden_size, bias=False) + + def forward(self, hidden, state=None): + if hidden.size(1) == 1 and state is not None: + shifted = state[0][:, :, self.layer_id] + else: + shifted = self.time_shift(hidden) + if state is not None: + shifted[:, 0] = state[0][:, :, self.layer_id] + key = hidden * self.time_mix_key + shifted * (1 - self.time_mix_key) + receptance = hidden * self.time_mix_receptance + shifted * (1 - self.time_mix_receptance) + + key = torch.square(torch.relu(self.key(key))) + value = self.value(key) + receptance = torch.sigmoid(self.receptance(receptance)) + + if state is not None: + state[0][:, :, self.layer_id] = hidden[:, -1] + + return receptance * value, state + + +class RwkvBlock(nn.Module): + def __init__(self, config, layer_id): + super().__init__() + self.config = config + self.layer_id = layer_id + + if layer_id == 0: + self.pre_ln = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_epsilon) + + self.ln1 = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_epsilon) + self.ln2 = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_epsilon) + + self.attention = RwkvSelfAttention(config, layer_id) + self.feed_forward = RwkvFeedForward(config, layer_id) + + def forward(self, hidden, state=None, use_cache=False, output_attentions=False): + if self.layer_id == 0: + hidden = self.pre_ln(hidden) + + attention, state = self.attention(self.ln1(hidden), state=state, use_cache=use_cache) + hidden = hidden + attention + + feed_forward, state = self.feed_forward(self.ln2(hidden), state=state) + hidden = hidden + feed_forward + + outputs = (hidden, state) + if output_attentions: + outputs += (attention,) + else: + outputs += (None,) + + return outputs + + +class RwkvPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = RwkvConfig + base_model_prefix = "rwkv" + _no_split_modules = ["RwkvBlock"] + _keep_in_fp32_modules = ["time_decay", "time_first"] + supports_gradient_checkpointing = True + + def _init_weights(self, module): + """Initialize the weights.""" + if isinstance(module, RwkvSelfAttention): + layer_id = module.layer_id + num_hidden_layers = module.config.num_hidden_layers + hidden_size = module.config.hidden_size + attention_hidden_size = module.attention_hidden_size + + ratio_0_to_1 = layer_id / (num_hidden_layers - 1) # 0 to 1 + ratio_1_to_almost0 = 1.0 - (layer_id / num_hidden_layers) # 1 to ~0 + + time_weight = torch.tensor( + [i / hidden_size for i in range(hidden_size)], + dtype=module.time_mix_key.dtype, + device=module.time_mix_key.device, + ) + time_weight = time_weight[None, None, :] + + decay_speed = [ + -5 + 8 * (h / (attention_hidden_size - 1)) ** (0.7 + 1.3 * ratio_0_to_1) + for h in range(attention_hidden_size) + ] + decay_speed = torch.tensor(decay_speed, dtype=module.time_decay.dtype, device=module.time_decay.device) + zigzag = ( + torch.tensor( + [(i + 1) % 3 - 1 for i in range(attention_hidden_size)], + dtype=module.time_first.dtype, + device=module.time_first.device, + ) + * 0.5 + ) + + with torch.no_grad(): + module.time_decay.data = decay_speed + module.time_first.data = torch.ones_like(module.time_first * math.log(0.3) + zigzag) + + module.time_mix_key.data = torch.pow(time_weight, ratio_1_to_almost0) + module.time_mix_value.data = torch.pow(time_weight, ratio_1_to_almost0) + 0.3 * ratio_0_to_1 + module.time_mix_receptance.data = torch.pow(time_weight, 0.5 * ratio_1_to_almost0) + elif isinstance(module, RwkvFeedForward): + layer_id = module.layer_id + num_hidden_layers = module.config.num_hidden_layers + hidden_size = module.config.hidden_size + + ratio_1_to_almost0 = 1.0 - (layer_id / num_hidden_layers) # 1 to ~0 + + time_weight = torch.tensor( + [i / hidden_size for i in range(hidden_size)], + dtype=module.time_mix_key.dtype, + device=module.time_mix_key.device, + ) + time_weight = time_weight[None, None, :] + + with torch.no_grad(): + module.time_mix_key.data = torch.pow(time_weight, ratio_1_to_almost0) + module.time_mix_receptance.data = torch.pow(time_weight, ratio_1_to_almost0) + + +@dataclass +class RwkvOutput(ModelOutput): + """ + Class for the RWKV model outputs. + + Args: + last_hidden_state (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`): + Sequence of hidden-states at the output of the last layer of the model. + state (list of five `torch.FloatTensor` of shape `(batch_size, hidden_size, num_hidden_layers)`): + The state of the model at the last time step. Can be used in a forward method with the next `input_ids` to + avoid providing the old `input_ids`. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + """ + + last_hidden_state: torch.FloatTensor = None + state: Optional[List[torch.FloatTensor]] = None + hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None + attentions: Optional[Tuple[torch.FloatTensor, ...]] = None + + +@dataclass +class RwkvCausalLMOutput(ModelOutput): + """ + Base class for causal language model (or autoregressive) outputs. + + Args: + loss (`torch.FloatTensor` of shape `(1,)`, *optional*, returned when `labels` is provided): + Language modeling loss (for next-token prediction). + logits (`torch.FloatTensor` of shape `(batch_size, sequence_length, config.vocab_size)`): + Prediction scores of the language modeling head (scores for each vocabulary token before SoftMax). + state (list of five `torch.FloatTensor` of shape `(batch_size, hidden_size, num_hidden_layers)`): + The state of the model at the last time step. Can be used in a forward method with the next `input_ids` to + avoid providing the old `input_ids`. + hidden_states (`tuple(torch.FloatTensor)`, *optional*, returned when `output_hidden_states=True` is passed or when `config.output_hidden_states=True`): + Tuple of `torch.FloatTensor` (one for the output of the embeddings, if the model has an embedding layer, + + one for the output of each layer) of shape `(batch_size, sequence_length, hidden_size)`. + + Hidden-states of the model at the output of each layer plus the optional initial embedding outputs. + attentions (`tuple(torch.FloatTensor)`, *optional*, returned when `output_attentions=True` is passed or when `config.output_attentions=True`): + Tuple of `torch.FloatTensor` (one for each layer) of shape `(batch_size, num_heads, sequence_length, + sequence_length)`. + + Attentions weights after the attention softmax, used to compute the weighted average in the self-attention + heads. + """ + + loss: Optional[torch.FloatTensor] = None + logits: torch.FloatTensor = None + state: Optional[List[torch.FloatTensor]] = None + hidden_states: Optional[Tuple[torch.FloatTensor, ...]] = None + attentions: Optional[Tuple[torch.FloatTensor, ...]] = None + + +RWKV_START_DOCSTRING = r""" + + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`RwkvConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +RWKV_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, input_ids_length)`): + `input_ids_length` = `sequence_length` if `past_key_values` is `None` else + `past_key_values[0][0].shape[-2]` (`sequence_length` of input past key value states). Indices of input + sequence tokens in the vocabulary. + + If `past_key_values` is used, only `input_ids` that do not have their past calculated should be passed as + `input_ids`. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are input IDs?](../glossary#input-ids) + attention_mask (`torch.LongTensor` of shape `(batch_size, input_ids_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + This is currently not used by `RwkvModel`, but will be supported in the future. + + [What are attention masks?](../glossary#attention-mask) + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + state (tuple of five `torch.FloatTensor` of shape `(batch_size, hidden_size, num_hidden_layers)`, *optional*): + If passed along, the model uses the previous state in all the blocks (which will give the output for the + `input_ids` provided as if the model add `state_input_ids + input_ids` as context). + use_cache (`bool`, *optional*): + If set to `True`, the last state is returned and can be used to quickly generate the next logits. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + + +@add_start_docstrings( + "The bare RWKV Model transformer outputting raw hidden-states without any specific head on top.", + RWKV_START_DOCSTRING, +) +class RwkvModel(RwkvPreTrainedModel): + def __init__(self, config): + super().__init__(config) + + self.embeddings = nn.Embedding(config.vocab_size, config.hidden_size) + self.blocks = nn.ModuleList([RwkvBlock(config, layer_id=idx) for idx in range(config.num_hidden_layers)]) + self.ln_out = nn.LayerNorm(config.hidden_size) + + self.layers_are_rescaled = False + + self.gradient_checkpointing = False + + # Initialize weights and apply final processing + self.post_init() + + def get_input_embeddings(self): + return self.embeddings + + def set_input_embeddings(self, new_embeddings): + self.embeddings = new_embeddings + + @add_start_docstrings_to_model_forward(RWKV_INPUTS_DOCSTRING) + @add_code_sample_docstrings( + checkpoint=_CHECKPOINT_FOR_DOC, + output_type=RwkvOutput, + config_class=_CONFIG_FOR_DOC, + ) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, # noqa + inputs_embeds: Optional[torch.FloatTensor] = None, + state: Optional[List[torch.FloatTensor]] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, RwkvOutput]: + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + use_cache = use_cache if use_cache is not None else (self.config.use_cache if not self.training else False) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if self.training == self.layers_are_rescaled: + self._rescale_layers() + + if input_ids is not None and inputs_embeds is not None: + raise ValueError("You cannot specify both input_ids and inputs_embeds at the same time") + elif input_ids is None and inputs_embeds is None: + raise ValueError("You have to specify either input_ids or inputs_embeds") + + if inputs_embeds is None: + inputs_embeds = self.embeddings(input_ids) + + if use_cache and state is None: + shape = (inputs_embeds.size(0), self.config.hidden_size, self.config.num_hidden_layers) + state = [ + torch.zeros( + *shape, dtype=inputs_embeds.dtype if i <= 1 else torch.float32, device=inputs_embeds.device + ) + for i in range(5) + ] + state[4] -= 1e30 + + if self.gradient_checkpointing and self.training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + hidden_states = inputs_embeds + + all_self_attentions = () if output_attentions else None + all_hidden_states = () if output_hidden_states else None + for idx, block in enumerate(self.blocks): + if self.gradient_checkpointing and self.training: + hidden_states, state, attentions = self._gradient_checkpointing_func( + block.__call__, hidden_states, state, use_cache, output_attentions + ) + else: + hidden_states, state, attentions = block( + hidden_states, state=state, use_cache=use_cache, output_attentions=output_attentions + ) + + if ( + self.layers_are_rescaled + and self.config.rescale_every > 0 + and (idx + 1) % self.config.rescale_every == 0 + ): + hidden_states = hidden_states / 2 + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if output_attentions: + all_self_attentions = all_self_attentions + (attentions,) + + hidden_states = self.ln_out(hidden_states) + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple(x for x in [hidden_states, state, all_hidden_states, all_self_attentions] if x is not None) + + return RwkvOutput( + last_hidden_state=hidden_states, + state=state, + hidden_states=all_hidden_states, + attentions=all_self_attentions, + ) + + def _rescale_layers(self): + # Layers should be rescaled for inference only. + if self.layers_are_rescaled == (not self.training): + return + if self.config.rescale_every > 0: + with torch.no_grad(): + for block_id, block in enumerate(self.blocks): + if self.training: + block.attention.output.weight.mul_(2 ** int(block_id // self.config.rescale_every)) + block.feed_forward.value.weight.mul_(2 ** int(block_id // self.config.rescale_every)) + else: + # Deal with quantization statistics + if hasattr(block.attention.output.weight, "SCB"): + block.attention.output.weight.SCB.div_(2 ** int(block_id // self.config.rescale_every)) + block.feed_forward.value.weight.SCB.div_(2 ** int(block_id // self.config.rescale_every)) + elif hasattr(block.attention.output.weight, "quant_state"): + self._bnb_4bit_dequantize_and_rescale(block.attention.output, block_id) + self._bnb_4bit_dequantize_and_rescale(block.feed_forward.value, block_id) + else: + block.attention.output.weight.div_(2 ** int(block_id // self.config.rescale_every)) + block.feed_forward.value.weight.div_(2 ** int(block_id // self.config.rescale_every)) + + self.layers_are_rescaled = not self.training + + def _bnb_4bit_dequantize_and_rescale(self, target_layer, block_id): + r""" + Perform the dequantization and rescaling of the weights of a given layer. After that operation the layer will + be quantized again. + """ + if not is_bitsandbytes_available(): + raise ImportError("Please install bitsandbytes to use this method.") + import bitsandbytes as bnb + + dequant_weights = bnb.functional.dequantize_4bit(target_layer.weight.data, target_layer.weight.quant_state) + + dequant_weights.div_(2 ** int(block_id // self.config.rescale_every)) + + # re-quantize the model: + # we need to put it first on CPU then back to the device + # this will create an overhead :/ + # We set requires_grad=False as we cannot compute gradients on top of 4bit parameters anyway and to avoid + # bugs with bnb + quant_weight = bnb.nn.Params4bit(dequant_weights.to("cpu"), requires_grad=False).to(dequant_weights.device) + setattr(target_layer, "weight", quant_weight) + + +@add_start_docstrings( + """ + The RWKV Model transformer with a language modeling head on top (linear layer with weights tied to the input + embeddings). + """, + RWKV_START_DOCSTRING, +) +class RwkvForCausalLM(RwkvPreTrainedModel): + _tied_weights_keys = ["head.weight"] + + def __init__(self, config): + super().__init__(config) + self.rwkv = RwkvModel(config) + self.head = nn.Linear(config.hidden_size, config.vocab_size, bias=False) + + # Initialize weights and apply final processing + self.post_init() + + def get_output_embeddings(self): + return self.head + + def set_output_embeddings(self, new_embeddings): + self.head = new_embeddings + + def generate(self, *args, **kwargs): + # Thin wrapper to raise exceptions when trying to generate with methods that manipulate `past_key_values`. + # RWKV is one of the few models that don't have it (it has `state` instead, which has different properties and + # usage). + try: + gen_output = super().generate(*args, **kwargs) + except AttributeError as exc: + # Expected exception: "AttributeError: '(object name)' object has no attribute 'past_key_values'" + if "past_key_values" in str(exc): + raise AttributeError( + "You tried to call `generate` with a decoding strategy that manipulates `past_key_values`. RWKV " + "doesn't have that attribute, try another generation strategy instead. For the available " + "generation strategies, check this doc: https://huggingface.co/docs/transformers/en/generation_strategies#decoding-strategies" + ) + else: + raise exc + return gen_output + + def prepare_inputs_for_generation(self, input_ids, state=None, inputs_embeds=None, **kwargs): + # only last token for inputs_ids if the state is passed along. + if state is not None: + input_ids = input_ids[:, -1].unsqueeze(-1) + + # if `inputs_embeds` are passed, we only want to use them in the 1st generation step + if inputs_embeds is not None and state is None: + model_inputs = {"inputs_embeds": inputs_embeds} + else: + model_inputs = {"input_ids": input_ids} + + model_inputs["state"] = state + return model_inputs + + @add_start_docstrings_to_model_forward(RWKV_INPUTS_DOCSTRING) + @add_code_sample_docstrings( + checkpoint=_CHECKPOINT_FOR_DOC, + output_type=RwkvCausalLMOutput, + config_class=_CONFIG_FOR_DOC, + ) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.LongTensor] = None, # noqa + inputs_embeds: Optional[torch.FloatTensor] = None, + state: Optional[List[torch.FloatTensor]] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple, RwkvCausalLMOutput]: + r""" + labels (`torch.LongTensor` of shape `(batch_size, sequence_length)`, *optional*): + Labels for language modeling. Note that the labels **are shifted** inside the model, i.e. you can set + `labels = input_ids` Indices are selected in `[-100, 0, ..., config.vocab_size]` All labels set to `-100` + are ignored (masked), the loss is only computed for labels in `[0, ..., config.vocab_size]` + """ + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + rwkv_outputs = self.rwkv( + input_ids, + inputs_embeds=inputs_embeds, + state=state, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + return_dict=return_dict, + ) + hidden_states = rwkv_outputs[0] + + logits = self.head(hidden_states) + + loss = None + if labels is not None: + # move labels to correct device to enable model parallelism + labels = labels.to(logits.device) + # Shift so that tokens < n predict n + shift_logits = logits[..., :-1, :].contiguous() + shift_labels = labels[..., 1:].contiguous() + # Flatten the tokens + loss_fct = CrossEntropyLoss() + loss = loss_fct(shift_logits.view(-1, shift_logits.size(-1)), shift_labels.view(-1)) + + if not return_dict: + output = (logits,) + rwkv_outputs[1:] + return ((loss,) + output) if loss is not None else output + + return RwkvCausalLMOutput( + loss=loss, + logits=logits, + state=rwkv_outputs.state, + hidden_states=rwkv_outputs.hidden_states, + attentions=rwkv_outputs.attentions, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__init__.py b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..35816110111092c9f605ba04157593732a8b532a --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__init__.py @@ -0,0 +1,80 @@ +# Copyright 2022 The HuggingFace Team. All rights reserved. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +from typing import TYPE_CHECKING + +from ...utils import ( + OptionalDependencyNotAvailable, + _LazyModule, + is_flax_available, + is_sentencepiece_available, + is_tf_available, + is_tokenizers_available, + is_torch_available, +) + + +_import_structure = { + "configuration_switch_transformers": [ + "SWITCH_TRANSFORMERS_PRETRAINED_CONFIG_ARCHIVE_MAP", + "SwitchTransformersConfig", + "SwitchTransformersOnnxConfig", + ] +} + +try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() +except OptionalDependencyNotAvailable: + pass +else: + _import_structure["modeling_switch_transformers"] = [ + "SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST", + "SwitchTransformersEncoderModel", + "SwitchTransformersForConditionalGeneration", + "SwitchTransformersModel", + "SwitchTransformersPreTrainedModel", + "SwitchTransformersTop1Router", + "SwitchTransformersSparseMLP", + ] + + +if TYPE_CHECKING: + from .configuration_switch_transformers import ( + SWITCH_TRANSFORMERS_PRETRAINED_CONFIG_ARCHIVE_MAP, + SwitchTransformersConfig, + SwitchTransformersOnnxConfig, + ) + + try: + if not is_torch_available(): + raise OptionalDependencyNotAvailable() + except OptionalDependencyNotAvailable: + pass + else: + from .modeling_switch_transformers import ( + SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST, + SwitchTransformersEncoderModel, + SwitchTransformersForConditionalGeneration, + SwitchTransformersModel, + SwitchTransformersPreTrainedModel, + SwitchTransformersSparseMLP, + SwitchTransformersTop1Router, + ) + + +else: + import sys + + sys.modules[__name__] = _LazyModule(__name__, globals()["__file__"], _import_structure, module_spec=__spec__) diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__pycache__/__init__.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..6ff63cab4879001468d377670d75ce2f540557f2 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__pycache__/__init__.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__pycache__/configuration_switch_transformers.cpython-310.pyc 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0000000000000000000000000000000000000000..4f5b97ada35aaf5e6d12d85e5b82b80ab1e89276 Binary files /dev/null and b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/__pycache__/modeling_switch_transformers.cpython-310.pyc differ diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/configuration_switch_transformers.py b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/configuration_switch_transformers.py new file mode 100644 index 0000000000000000000000000000000000000000..fb531003178af05d8fafb8f763d6d2817aa583ac --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/configuration_switch_transformers.py @@ -0,0 +1,184 @@ +# coding=utf-8 +# Copyright 2022, Google and HuggingFace Inc. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" Switch Transformers model configuration""" +from ...configuration_utils import PretrainedConfig +from ...utils import logging + + +logger = logging.get_logger(__name__) + + +from ..deprecated._archive_maps import SWITCH_TRANSFORMERS_PRETRAINED_CONFIG_ARCHIVE_MAP # noqa: F401, E402 + + +class SwitchTransformersConfig(PretrainedConfig): + r""" + This is the configuration class to store the configuration of a [`SwitchTransformersModel`]. It is used to + instantiate a SwitchTransformers model according to the specified arguments, defining the model architecture. + Instantiating a configuration with the defaults will yield a similar configuration to that of the + SwitchTransformers [google/switch-base-8](https://huggingface.co/google/switch-base-8) architecture. + + Configuration objects inherit from [`PretrainedConfig`] and can be used to control the model outputs. Read the + documentation from [`PretrainedConfig`] for more information. + + Arguments: + vocab_size (`int`, *optional*, defaults to 32128): + Vocabulary size of the SwitchTransformers model. Defines the number of different tokens that can be + represented by the `inputs_ids` passed when calling [`SwitchTransformersModel`]. + d_model (`int`, *optional*, defaults to 768): + Size of the encoder layers and the pooler layer. + d_kv (`int`, *optional*, defaults to 64): + Size of the key, query, value projections per attention head. `d_kv` has to be equal to `d_model // + num_heads`. + d_ff (`int`, *optional*, defaults to 2048): + Size of the intermediate feed forward layer in each `SwitchTransformersBlock`. + expert_capacity (`int`, *optional*, defaults to 64): + Number of tokens that can be stored in each expert. If set to 1, the model will behave like a regular + Transformer. + num_layers (`int`, *optional*, defaults to 12): + Number of dense hidden layers in the Transformer encoder layer. + num_sparse_encoder_layers (`int`, *optional*, defaults to 3): + Number of sparse (MoE) dense hidden layers in the Transformer encoder layer. + num_decoder_layers (`int`, *optional*, defaults to 12): + Number of hidden layers in the Transformer decoder. Will use the same value as `num_layers` if not set. + num_sparse_decoder_layers (`int`, *optional*, defaults to 3): + Number of sparse (MoE) dense hidden layers in the Transformer decoder layer. + num_heads (`int`, *optional*, defaults to 12): + Number of attention heads for each attention layer in the Transformer encoder. + num_experts (`int`, *optional*, defaults to 8): + Number of experts for each SwitchTransformer layer. + router_bias (`bool`, *optional*, defaults to `False`): + Whether to add a bias to the router. + router_jitter_noise (`float`, *optional*, defaults to 0.01): + Amount of noise to add to the router. + router_dtype (`str`, *optional*, default to `"float32"`): + The `dtype` used for the routers. It is preferable to keep the `dtype` to `"float32"` as specified in the + *selective precision* discussion in [the paper](https://arxiv.org/abs/2101.03961). + router_ignore_padding_tokens (`bool`, *optional*, defaults to `False`): + Whether to ignore padding tokens when routing. + relative_attention_num_buckets (`int`, *optional*, defaults to 32): + The number of buckets to use for each attention layer. + relative_attention_max_distance (`int`, *optional*, defaults to 128): + The maximum distance of the longer sequences for the bucket separation. + dropout_rate (`float`, *optional*, defaults to 0.1): + The ratio for all dropout layers. + layer_norm_eps (`float`, *optional*, defaults to 1e-6): + The epsilon used by the layer normalization layers. + router_z_loss_coef (`float`, *optional*, defaults to 0.001): + The z loss factor for the total loss. + router_aux_loss_coef (`float`, *optional*, defaults to 0.001): + The aux loss factor for the total loss. + initializer_factor (`float`, *optional*, defaults to 1.0): + A factor for initializing all weight matrices (should be kept to 1, used internally for initialization + testing). + dense_act_fn (`string`, *optional*, defaults to `"relu"`): + Type of feed forward layer to be used. Should be one of `"relu"` or `"gated-gelu"`. SwitchTransformersv1.1 + uses the `"gated-gelu"` feed forward projection. Original SwitchTransformers uses `"relu"`. + add_router_probs (`bool`, *optional*, defaults to `False`): + Whether to output router probabilities to compute router auxiliary loss. + use_cache (`bool`, *optional*, defaults to `True`): + Whether or not the model should return the last key/values attentions (not used by all models). + """ + + model_type = "switch_transformers" + keys_to_ignore_at_inference = ["past_key_values"] + attribute_map = {"hidden_size": "d_model", "num_attention_heads": "num_heads", "num_hidden_layers": "num_layers"} + + def __init__( + self, + vocab_size=32128, + d_model=768, + d_kv=64, + d_ff=2048, + expert_capacity=64, + num_layers=12, + num_sparse_encoder_layers=3, + num_decoder_layers=12, + num_sparse_decoder_layers=3, + num_heads=12, + num_experts=8, + router_bias=False, + router_jitter_noise=0.01, + router_dtype="float32", + router_ignore_padding_tokens=False, + relative_attention_num_buckets=32, + relative_attention_max_distance=128, + dropout_rate=0.1, + layer_norm_epsilon=1e-6, + router_z_loss_coef=0.001, + router_aux_loss_coef=0.001, + initializer_factor=1.0, + dense_act_fn="relu", + is_encoder_decoder=True, + add_router_probs=False, + use_cache=True, + pad_token_id=0, + eos_token_id=1, + **kwargs, + ): + self.vocab_size = vocab_size + self.d_model = d_model + self.d_kv = d_kv + self.d_ff = d_ff + + self.num_sparse_encoder_layers = num_sparse_encoder_layers + + self.num_layers = num_layers + self.num_decoder_layers = ( + num_decoder_layers if num_decoder_layers is not None else self.num_layers + ) # default = symmetry + self.num_sparse_decoder_layers = num_sparse_decoder_layers + + # This tells us, each how many encoder layer we'll have to set a sparse layer. + if self.num_sparse_encoder_layers > 0: + self.encoder_sparse_step = self.num_layers // self.num_sparse_encoder_layers + else: + self.encoder_sparse_step = self.num_layers # HACK: this will create 0 sparse layers + + # This tells us, each how many encoder layer we'll have to set a sparse layer. + if self.num_sparse_decoder_layers > 0: + self.decoder_sparse_step = self.num_decoder_layers // self.num_sparse_decoder_layers + else: + self.decoder_sparse_step = self.num_decoder_layers # HACK: this will create 0 sparse layers + + self.num_heads = num_heads + self.num_experts = num_experts + self.expert_capacity = expert_capacity + self.router_bias = router_bias + self.router_jitter_noise = router_jitter_noise + if router_dtype not in ["float32", "float16", "bfloat16"]: + raise ValueError(f"`router_dtype` must be one of 'float32', 'float16' or 'bfloat16', got {router_dtype}") + self.router_dtype = router_dtype + + self.router_ignore_padding_tokens = router_ignore_padding_tokens + self.relative_attention_num_buckets = relative_attention_num_buckets + self.relative_attention_max_distance = relative_attention_max_distance + + self.dropout_rate = dropout_rate + self.layer_norm_epsilon = layer_norm_epsilon + self.initializer_factor = initializer_factor + self.use_cache = use_cache + self.add_router_probs = add_router_probs + + self.router_z_loss_coef = router_z_loss_coef + self.router_aux_loss_coef = router_aux_loss_coef + self.dense_act_fn = dense_act_fn + + super().__init__( + pad_token_id=pad_token_id, + eos_token_id=eos_token_id, + is_encoder_decoder=is_encoder_decoder, + **kwargs, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/convert_big_switch.py b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/convert_big_switch.py new file mode 100644 index 0000000000000000000000000000000000000000..e4b8af07cd4c88cd5634a0817e82be6190365ce2 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/convert_big_switch.py @@ -0,0 +1,193 @@ +import argparse +import json +import os + +import tensorstore as ts +import torch +from flax import serialization +from flax.traverse_util import flatten_dict, unflatten_dict +from tensorflow.io import gfile + +from transformers.modeling_utils import dtype_byte_size +from transformers.models.switch_transformers.convert_switch_transformers_original_flax_checkpoint_to_pytorch import ( + rename_keys, +) +from transformers.utils import WEIGHTS_INDEX_NAME, WEIGHTS_NAME +from transformers.utils.hub import convert_file_size_to_int + + +def rename_base_flax_keys(flax_key_tuple, flax_tensor): + """ + Post renaming of basic JAX keys to pytorch. + """ + if flax_key_tuple[-1] == "kernel" and flax_tensor.ndim == 3: + # expert layer + flax_key_tuple = flax_key_tuple[:-1] + ("weight",) + flax_tensor = torch.permute(flax_tensor, (0, 2, 1)) + elif flax_key_tuple[-1] == "kernel" and ".".join(flax_key_tuple): + # linear layer + flax_key_tuple = flax_key_tuple[:-1] + ("weight",) + flax_tensor = flax_tensor.T + elif flax_key_tuple[-1] in ["scale", "embedding"]: + flax_key_tuple = flax_key_tuple[:-1] + ("weight",) + + return flax_key_tuple, flax_tensor + + +def get_key_and_tensorstore_dict(layer, checkpoint_info, switch_checkpoint_path): + if "metadata" in layer: + split_layer = layer.split("metadata") + curr_real_layer_name = "".join(split_layer[0])[:-1] + split_layer = [tuple(("metadata" + split_layer[1]).split("/"))] + elif "kvstore" in layer: + split_layer = layer.split("kvstore") + curr_real_layer_name = "".join(split_layer[0])[:-1] + split_layer = [tuple(("kvstore" + split_layer[1]).split("/"))] + + else: + split_layer = layer.split("/") + curr_real_layer_name = "/".join(split_layer[:-1]) + split_layer[-1] = (split_layer[-1],) + + if "kvstore/path" in layer: + content = f"{switch_checkpoint_path}/{checkpoint_info[layer]}" + elif "kvstore/driver" in layer: + content = "file" + else: + content = checkpoint_info[layer] + + return curr_real_layer_name, split_layer, content + + +def rename_and_save_block(current_block, save_path): + current_block = rename_keys(current_block) + new_current_block = {} + for k, v in current_block.items(): + new_current_block[k.replace("/", ".")] = v + current_block = new_current_block + torch.save(current_block, save_path) + + +def shard_on_the_fly(switch_checkpoint_path, dump_path, max_shard_size, dtype, weights_name: str = WEIGHTS_NAME): + max_shard_size = convert_file_size_to_int(max_shard_size) + sharded_state_dicts = [] + current_block = {} + current_block_size = 0 + total_size = 0 + + os.makedirs(dump_path, exist_ok=True) + with gfile.GFile(switch_checkpoint_path + "/checkpoint", "rb") as fp: + checkpoint_info = serialization.msgpack_restore(fp.read())["optimizer"]["target"] + checkpoint_info = flatten_dict(checkpoint_info, sep="/") + + all_layers = {} + for layer in checkpoint_info.keys(): + curr_real_layer_name, split_layer, content = get_key_and_tensorstore_dict( + layer, checkpoint_info, switch_checkpoint_path + ) + if curr_real_layer_name in all_layers: + all_layers[curr_real_layer_name][split_layer[-1]] = content + else: + all_layers[curr_real_layer_name] = {split_layer[-1]: content} + + for key in all_layers.keys(): + # open tensorstore file + raw_weights = ts.open(unflatten_dict(all_layers[key])).result().read().result() + raw_weights = torch.tensor(raw_weights) + weight_size = raw_weights.numel() * dtype_byte_size(raw_weights.dtype) + + # use the renaming pattern from the small conversion scripts + key, raw_weights = rename_base_flax_keys(tuple(key.split("/")), raw_weights) + key = "/".join(key) + + # If this weight is going to tip up over the maximal size, we split. + if current_block_size + weight_size > max_shard_size: + save_path = os.path.join( + dump_path, weights_name.replace(".bin", f"-{len(sharded_state_dicts)+1:05d}-of-???.bin") + ) + rename_and_save_block(current_block, save_path) + sharded_state_dicts.append(current_block.keys()) + del current_block + current_block = {} + current_block_size = 0 + + current_block[key] = raw_weights.to(getattr(torch, dtype)) + current_block_size += weight_size + total_size += weight_size + + # Add the last block + save_path = os.path.join(dump_path, weights_name.replace(".bin", f"-{len(sharded_state_dicts)+1:05d}-of-???.bin")) + rename_and_save_block(current_block, save_path) + sharded_state_dicts.append(current_block.keys()) + + # If we only have one shard, we return it + if len(sharded_state_dicts) == 1: + return {weights_name: sharded_state_dicts[0]}, None + + # Otherwise, let's build the index + weight_map = {} + shards = {} + for idx, shard in enumerate(sharded_state_dicts): + shard_file = weights_name.replace( + ".bin", f"-{idx+1:05d}-of-{len(sharded_state_dicts):05d}.bin" + ) # len(sharded_state_dicts):05d} + temp_filename = os.path.join(dump_path, weights_name.replace(".bin", f"-{idx+1:05d}-of-???.bin")) + os.rename(temp_filename, os.path.join(dump_path, shard_file)) + shards[shard_file] = shard + for key in shard: + weight_map[key] = shard_file + + # Add the metadata + metadata = {"total_size": total_size} + index = {"metadata": metadata, "weight_map": weight_map} + + with open(os.path.join(dump_path, WEIGHTS_INDEX_NAME), "w", encoding="utf-8") as f: + content = json.dumps(index, indent=2, sort_keys=True) + "\n" + f.write(content) + + return metadata, index + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + # Required parameters + parser.add_argument( + "--switch_t5x_checkpoint_path", + default="/mnt/disks/disk_switch/original_checkpoints/switch-xxl-128/checkpoint_634600", + type=str, + required=False, + help="Path to a directory containing a folder per layer. Follows the original Google format.", + ) + parser.add_argument("--max_shard_size", default="10GB", required=False, help="Max shard size") + parser.add_argument("--dtype", default="bfloat16", type=str, required=False, help="dtype of the saved model") + parser.add_argument( + "--pytorch_dump_folder_path", + default="/mnt/disks/disk_switch/original_checkpoints/switch-xxl-128-converted", + type=str, + required=False, + help="Path to the output pytorch model.", + ) + args = parser.parse_args() + shard_on_the_fly( + args.switch_t5x_checkpoint_path, + args.pytorch_dump_folder_path, + args.max_shard_size, + args.dtype, + ) + + +def sanity_check(): + from transformers import SwitchTransformersConfig, SwitchTransformersForConditionalGeneration, T5Tokenizer + + config = SwitchTransformersConfig.from_pretrained("google/switch-base-8") + config.save_pretrained("/home/arthur_huggingface_co/transformers/switch_converted") + model = SwitchTransformersForConditionalGeneration.from_pretrained( + "/home/arthur_huggingface_co/transformers/switch_converted", device_map="auto" + ) + + tokenizer = T5Tokenizer.from_pretrained("google-t5/t5-small") + text = "A walks into a bar a orders a with pinch of ." + + input_ids = tokenizer(text, return_tensors="pt").input_ids + out = model.generate(input_ids, decoder_start_token_id=0) + print(tokenizer.decode(out[0])) diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/convert_switch_transformers_original_flax_checkpoint_to_pytorch.py b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/convert_switch_transformers_original_flax_checkpoint_to_pytorch.py new file mode 100644 index 0000000000000000000000000000000000000000..5937101169c6b4ee5b23b72953faad1be4632f15 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/convert_switch_transformers_original_flax_checkpoint_to_pytorch.py @@ -0,0 +1,203 @@ +# coding=utf-8 +# Copyright 2022 The HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Convert SwitchTransformersX checkpoints from the original repository to JAX/FLAX model.""" + +import argparse +import re + +from flax.traverse_util import flatten_dict, unflatten_dict +from t5x import checkpoints + +from transformers import SwitchTransformersConfig, SwitchTransformersForConditionalGeneration +from transformers.modeling_flax_pytorch_utils import load_flax_weights_in_pytorch_model +from transformers.utils import logging + + +logging.set_verbosity_info() + + +# should not include what is already done by the `from_pt` argument +MOE_LAYER_NAME_MAPPING = { + "/attention/": "/0/SelfAttention/", + "/self_attention/": "/0/SelfAttention/", + "/encoder_decoder_attention/": "/1/EncDecAttention/", + "value": "v", + "query": "q", + "key": "k", + "out": "o", + "pre_self_attention_layer_norm": "0/layer_norm", + "pre_cross_attention_layer_norm": "1/layer_norm", + "pre_attention_layer_norm": "0/layer_norm", # previously 1, but seems wrong + "token_embedder": "shared", + "encoder_norm": "final_layer_norm", + "decoder_norm": "final_layer_norm", + "relpos_bias/rel_embedding": "block/0/layer/0/SelfAttention/relative_attention_bias/weight", + "router/router_weights/w/": "router/classifier/", + "roer/roer_weights/w/": "router/classifier/", + "logits_dense": "lm_head", +} + + +def rename_keys(s_dict): + # 1. in HF T5, we have block.{x}.layer.{y}. which corresponds to layer.{x} in + # the original model + keys = list(s_dict.keys()) + for key in keys: + layer_to_block_of_layer = r".*/layers_(\d+)" + new_key = key + if re.match(layer_to_block_of_layer, key): + new_key = re.sub(r"layers_(\d+)", r"block/\1/layer", new_key) + + layer_to_block_of_layer = r"(encoder|decoder)\/" + + if re.match(layer_to_block_of_layer, key): + groups = re.match(layer_to_block_of_layer, new_key).groups() + if groups[0] == "encoder": + new_key = re.sub(r"/mlp/", r"/1/mlp/", new_key) + new_key = re.sub(r"/pre_mlp_layer_norm/", r"/1/layer_norm/", new_key) + + elif groups[0] == "decoder": + new_key = re.sub(r"/mlp/", r"/2/mlp/", new_key) + new_key = re.sub(r"/pre_mlp_layer_norm/", r"/2/layer_norm/", new_key) + + # 2. Convert other classic mappings + for old_key, temp_key in MOE_LAYER_NAME_MAPPING.items(): + if old_key in new_key: + new_key = new_key.replace(old_key, temp_key) + + print(f"{key} -> {new_key}") + s_dict[new_key] = s_dict.pop(key) + + if "encoder/block/0/layer/0/SelfAttention/relative_attention_bias/weight" in s_dict: + s_dict["encoder/block/0/layer/0/SelfAttention/relative_attention_bias/weight"] = s_dict[ + "encoder/block/0/layer/0/SelfAttention/relative_attention_bias/weight" + ].T + if "decoder/block/0/layer/0/SelfAttention/relative_attention_bias/weight" in s_dict: + s_dict["decoder/block/0/layer/0/SelfAttention/relative_attention_bias/weight"] = s_dict[ + "decoder/block/0/layer/0/SelfAttention/relative_attention_bias/weight" + ].T + + # 3. Take extra care of the EXPERTS layer + for key in list(s_dict.keys()): + if "expert" in key: + num_experts = s_dict[key].shape[0] + expert_weihts = s_dict[key] + for idx in range(num_experts): + s_dict[key.replace("expert/", f"experts/expert_{idx}/")] = expert_weihts[idx] + print(f"{key} -> {key.replace('expert/', f'experts/expert_{idx}/')}") + + s_dict.pop(key) + + return s_dict + + +GIN_TO_CONFIG_MAPPING = { + "NUM_ENCODER_LAYERS": "num_layers", + "NUM_DECODER_LAYERS": "num_decoder_layers", + "NUM_HEADS": "num_heads", + "HEAD_DIM": "d_kv", + "EMBED_DIM": "d_model", + "MLP_DIM": "d_ff", + "NUM_SELECTED_EXPERTS": "num_selected_experts", + "NUM_ENCODER_SPARSE_LAYERS": "num_sparse_encoder_layers", + "NUM_DECODER_SPARSE_LAYERS": "num_sparse_decoder_layers", + "dense.MlpBlock.activations": "feed_forward_proj", +} + + +def convert_gin_to_config(gin_file, num_experts): + # Convert a google style config to the hugging face fromat + import regex as re + + with open(gin_file, "r") as f: + raw_gin = f.read() + + regex_match = re.findall(r"(.*) = ([0-9.]*)", raw_gin) + args = {} + for param, value in regex_match: + if param in GIN_TO_CONFIG_MAPPING and value != "": + args[GIN_TO_CONFIG_MAPPING[param]] = float(value) if "." in value else int(value) + + activation = re.findall(r"(.*activations) = \(\'(.*)\',\)", raw_gin)[0] + args[GIN_TO_CONFIG_MAPPING[activation[0]]] = str(activation[1]) + + args["num_experts"] = num_experts + config = SwitchTransformersConfig(**args) + return config + + +def convert_flax_checkpoint_to_pytorch( + flax_checkpoint_path, config_file, gin_file=None, pytorch_dump_path="./", num_experts=8 +): + # Initialise PyTorch model + + print(f"Loading flax weights from : {flax_checkpoint_path}") + flax_params = checkpoints.load_t5x_checkpoint(flax_checkpoint_path) + + if gin_file is not None: + config = convert_gin_to_config(gin_file, num_experts) + else: + config = SwitchTransformersConfig.from_pretrained(config_file) + + pt_model = SwitchTransformersForConditionalGeneration(config) + + flax_params = flax_params["target"] + flax_params = flatten_dict(flax_params, sep="/") + flax_params = rename_keys(flax_params) + flax_params = unflatten_dict(flax_params, sep="/") + + # Load the flax params in the PT model + load_flax_weights_in_pytorch_model(pt_model, flax_params) + + print(f"Save PyTorch model to {pytorch_dump_path}") + pt_model.save_pretrained(pytorch_dump_path) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + # Required parameters + parser.add_argument( + "--switch_t5x_checkpoint_path", + default=None, + type=str, + required=True, + help=( + "The config json file corresponding to the pre-trained SwitchTransformers model. \nThis specifies the" + " model architecture. If not provided, a `gin_file` has to be provided." + ), + ) + parser.add_argument( + "--gin_file", + default=None, + type=str, + required=False, + help="Path to the gin config file. If not provided, a `config_file` has to be passed ", + ) + parser.add_argument( + "--config_name", default=None, type=str, required=False, help="Config name of SwitchTransformers model." + ) + parser.add_argument( + "--pytorch_dump_folder_path", default=None, type=str, required=True, help="Path to the output pytorch model." + ) + parser.add_argument("--num_experts", default=8, type=int, required=False, help="Number of experts") + args = parser.parse_args() + convert_flax_checkpoint_to_pytorch( + args.switch_t5x_checkpoint_path, + args.config_name, + args.gin_file, + args.pytorch_dump_folder_path, + args.num_experts, + ) diff --git a/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/modeling_switch_transformers.py b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/modeling_switch_transformers.py new file mode 100644 index 0000000000000000000000000000000000000000..375d94043e6c13c87fb7913bbb88938f5cb7c381 --- /dev/null +++ b/venv/lib/python3.10/site-packages/transformers/models/switch_transformers/modeling_switch_transformers.py @@ -0,0 +1,1858 @@ +# coding=utf-8 +# Copyright 2022 SwitchTransformers Authors and HuggingFace Inc. team. +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +""" PyTorch SwitchTransformers model.""" + + +import copy +import math +import warnings +from typing import Optional, Tuple, Union + +import torch +import torch.nn as nn +from torch.nn import CrossEntropyLoss + +from ...activations import ACT2FN +from ...modeling_outputs import ( + MoEModelOutput, + MoEModelOutputWithPastAndCrossAttentions, + Seq2SeqMoEModelOutput, + Seq2SeqMoEOutput, +) +from ...modeling_utils import PreTrainedModel +from ...pytorch_utils import ALL_LAYERNORM_LAYERS, find_pruneable_heads_and_indices, prune_linear_layer +from ...utils import ( + DUMMY_INPUTS, + DUMMY_MASK, + add_start_docstrings, + add_start_docstrings_to_model_forward, + is_torch_fx_proxy, + logging, + replace_return_docstrings, +) +from .configuration_switch_transformers import SwitchTransformersConfig + + +logger = logging.get_logger(__name__) + +_CONFIG_FOR_DOC = "SwitchTransformersConfig" +_CHECKPOINT_FOR_DOC = "google/switch-base-8" + +#################################################### +# This dict contains ids and associated url +# for the pretrained weights provided with the models +#################################################### + +from ..deprecated._archive_maps import SWITCH_TRANSFORMERS_PRETRAINED_MODEL_ARCHIVE_LIST # noqa: F401, E402 + + +def router_z_loss_func(router_logits: torch.Tensor) -> float: + r""" + Compute the router z-loss implemented in PyTorch. + + The router z-loss was introduced in [Designing Effective Sparse Expert Models](https://arxiv.org/abs/2202.08906). + It encourages router logits to remain small in an effort to improve stability. + + Args: + router_logits (`float`): + Input logits of shape [batch_size, sequence_length, num_experts] + + Returns: + Scalar router z-loss. + """ + num_groups, tokens_per_group, _ = router_logits.shape + log_z = torch.logsumexp(router_logits, dim=-1) + z_loss = log_z**2 + return torch.sum(z_loss) / (num_groups * tokens_per_group) + + +def load_balancing_loss_func(router_probs: torch.Tensor, expert_indices: torch.Tensor) -> float: + r""" + Computes auxiliary load balancing loss as in Switch Transformer - implemented in Pytorch. + + See Switch Transformer (https://arxiv.org/abs/2101.03961) for more details. This function implements the loss + function presented in equations (4) - (6) of the paper. It aims at penalizing cases where the routing between + experts is too unbalanced. + + Args: + router_probs (`torch.Tensor`): + Probability assigned to each expert per token. Shape: [batch_size, seqeunce_length, num_experts]. + expert_indices (`torch.Tensor`): + Indices tensor of shape [batch_size, seqeunce_length] identifying the selected expert for a given token. + + Returns: + The auxiliary loss. + """ + num_experts = router_probs.shape[-1] + + # cast the expert indices to int64, otherwise one-hot encoding will fail + if expert_indices.dtype != torch.int64: + expert_indices = expert_indices.to(torch.int64) + + if len(expert_indices.shape) == 2: + expert_indices = expert_indices.unsqueeze(2) + + expert_mask = torch.nn.functional.one_hot(expert_indices, num_experts) + + # For a given token, determine if it was routed to a given expert. + expert_mask = torch.max(expert_mask, axis=-2).values + + # cast to float32 otherwise mean will fail + expert_mask = expert_mask.to(torch.float32) + tokens_per_group_and_expert = torch.mean(expert_mask, axis=-2) + + router_prob_per_group_and_expert = torch.mean(router_probs, axis=-2) + return torch.mean(tokens_per_group_and_expert * router_prob_per_group_and_expert) * (num_experts**2) + + +class SwitchTransformersTop1Router(nn.Module): + """ + Router using tokens choose top-1 experts assignment. + + This router uses the same mechanism as in Switch Transformer (https://arxiv.org/abs/2101.03961) and V-MoE + (https://arxiv.org/abs/2106.05974): tokens choose their top experts. Items are sorted by router_probs and then + routed to their choice of expert until the expert's expert_capacity is reached. **There is no guarantee that each + token is processed by an expert**, or that each expert receives at least one token. + + """ + + def __init__(self, config: SwitchTransformersConfig): + super().__init__() + self.num_experts = config.num_experts + self.expert_capacity = config.expert_capacity + self.classifier = nn.Linear(config.hidden_size, self.num_experts, bias=config.router_bias) + self.jitter_noise = config.router_jitter_noise + self.ignore_padding_tokens = config.router_ignore_padding_tokens + self.dtype = getattr(torch, config.router_dtype) + + def _compute_router_probabilities(self, hidden_states: torch.Tensor) -> Tuple[torch.Tensor, torch.Tensor]: + r""" + Computes router probabilities from input hidden states. + + Args: + hidden_states (`torch.Tensor`): + (batch_size, sequence_length, hidden_dim) from which router probabilities are computed. + Returns: + router_probabilities (`torch.Tensor`): + Tensor of shape (batch_size, sequence_length, num_experts) corresponding to the probabilities for each + token and expert. Used for routing tokens to experts. + router_logits (`torch.Tensor`): + Logits tensor of shape (batch_size, sequence_length, num_experts) corresponding to raw router logits. + This is used later for computing router z-loss. + """ + # float32 is used to ensure stability. See the discussion of "selective precision" in + # https://arxiv.org/abs/2101.03961. + # We also store the previous dtype to cast back the output to the previous dtype + self.input_dtype = hidden_states.dtype + hidden_states = hidden_states.to(self.dtype) + + if self.training and self.jitter_noise > 0: + # Multiply the token inputs by the uniform distribution - adding some noise + hidden_states *= torch.empty_like(hidden_states).uniform_(1.0 - self.jitter_noise, 1.0 + self.jitter_noise) + + # Shape: [num_groups, tokens_per_group, num_experts] + self._cast_classifier() + router_logits = self.classifier(hidden_states) + + # Apply Softmax and cast back to the original `dtype` + router_probabilities = nn.functional.softmax(router_logits, dim=-1, dtype=self.dtype).to(self.input_dtype) + return router_probabilities, router_logits + + def _cast_classifier(self): + r""" + `bitsandbytes` `Linear8bitLt` layers does not support manual casting Therefore we need to check if they are an + instance of the `Linear8bitLt` class by checking special attributes. + """ + if not (hasattr(self.classifier, "SCB") or hasattr(self.classifier, "CB")): + self.classifier = self.classifier.to(self.dtype) + + def forward(self, hidden_states: torch.Tensor) -> Tuple: + r""" + Generic forward function for every Router class. Each Router expects to have the same input hidden states + (`hidden_states`) corresponding to the hidden states for each token, the `expert_capacity` corresponding to the + number of tokens the Router will send to each expert, some Routers can send up to few tokens to each expert. + + Each Router works as the following: it expects the hidden states for each token, gets the `router_probs` and + `router_logits` from the `router_weights`. This will assign for each token, the raw probability to be assigned + to an expert. Then each Router class will have to define its own `_compute_routing_instructions`. + + Args: + hidden_states (`torch.Tensor`) : + [num_groups, tokens_per_group, hidden_dim] inputs to send to experts. + Returns: + Tuple[`torch.Tensor`, `torch.Tensor`, `torch.Tensor`] Tuple containing the expert index, the router probs + and the router logits. The router probabilities and logits are required to compute the loss. + """ + router_probs, router_logits = self._compute_router_probabilities(hidden_states) + + expert_index = torch.argmax(router_probs, dim=-1) + expert_index = torch.nn.functional.one_hot(expert_index, num_classes=self.num_experts) + + # Mask tokens outside expert capacity. Sum over each sequence + token_priority = torch.cumsum(expert_index, dim=-2) + # mask if the token routed to to the expert will overflow + expert_capacity_mask = token_priority <= self.expert_capacity + expert_index = expert_index * expert_capacity_mask + + router_probs = torch.max(router_probs, dim=-1).values.unsqueeze(-1) + return expert_index, router_probs, router_logits + + +# Copied from transformers.models.t5.modeling_t5.T5LayerNorm with T5->SwitchTransformers +class SwitchTransformersLayerNorm(nn.Module): + def __init__(self, hidden_size, eps=1e-6): + """ + Construct a layernorm module in the SwitchTransformers style. No bias and no subtraction of mean. + """ + super().__init__() + self.weight = nn.Parameter(torch.ones(hidden_size)) + self.variance_epsilon = eps + + def forward(self, hidden_states): + # SwitchTransformers uses a layer_norm which only scales and doesn't shift, which is also known as Root Mean + # Square Layer Normalization https://arxiv.org/abs/1910.07467 thus varience is calculated + # w/o mean and there is no bias. Additionally we want to make sure that the accumulation for + # half-precision inputs is done in fp32 + + variance = hidden_states.to(torch.float32).pow(2).mean(-1, keepdim=True) + hidden_states = hidden_states * torch.rsqrt(variance + self.variance_epsilon) + + # convert into half-precision if necessary + if self.weight.dtype in [torch.float16, torch.bfloat16]: + hidden_states = hidden_states.to(self.weight.dtype) + + return self.weight * hidden_states + + +ALL_LAYERNORM_LAYERS.append(SwitchTransformersLayerNorm) + + +# Copied from transformers.models.t5.modeling_t5.T5DenseActDense with T5->SwitchTransformers +class SwitchTransformersDenseActDense(nn.Module): + def __init__(self, config: SwitchTransformersConfig): + super().__init__() + self.wi = nn.Linear(config.d_model, config.d_ff, bias=False) + self.wo = nn.Linear(config.d_ff, config.d_model, bias=False) + self.dropout = nn.Dropout(config.dropout_rate) + self.act = ACT2FN[config.dense_act_fn] + + def forward(self, hidden_states): + hidden_states = self.wi(hidden_states) + hidden_states = self.act(hidden_states) + hidden_states = self.dropout(hidden_states) + if ( + isinstance(self.wo.weight, torch.Tensor) + and hidden_states.dtype != self.wo.weight.dtype + and self.wo.weight.dtype != torch.int8 + ): + hidden_states = hidden_states.to(self.wo.weight.dtype) + hidden_states = self.wo(hidden_states) + return hidden_states + + +class SwitchTransformersSparseMLP(nn.Module): + r""" + Implementation of the Switch Transformers Sparse MLP module. + """ + + def __init__(self, config: SwitchTransformersConfig, expert_class: nn.Module = SwitchTransformersDenseActDense): + super().__init__() + # Step 1: Get the correct router according to its class + self.router = SwitchTransformersTop1Router(config) + + # Step 2: Get the experts + self.experts = nn.ModuleDict() + for idx in range(config.num_experts): + self.experts[f"expert_{idx}"] = expert_class(config) + + def forward(self, hidden_states): + r""" + Hold on, this will be slightly tricky to understand In the correct order, a MoE layer does the following: + + 1- Gets the `router_mask` from the router. The shape of the mask is `(batch_size, sequence_length, num_expert)` + and corresponds to the argmax of the `router_probs`. The probabilities are needed in the computation of the + hidden states : they are broadcasted to the hidden states values (can be interpreted as a scaling factor). + + 2- Dispatch the tokens to its associated experts. We do a classic for loop over the experts and assign for each + expert the corresponding hidden states. + + """ + # Step 1: Get the router_mask from the router as wel as the probabilities + router_mask, router_probs, router_logits = self.router(hidden_states) + expert_index = torch.argmax(router_mask, dim=-1) + + # The routers introduced might not always map all the tokens, to a router, which means that some hidden states + # can be unchanged from one layer to another. That is why the hidden states are cloned before updating only the seleced ones. + + next_states = hidden_states.clone() + for idx, expert in enumerate(self.experts.values()): + token_indices = router_mask[:, :, idx].bool() + next_states[token_indices] = expert(hidden_states[token_indices]).to(next_states.dtype) + + hidden_states = router_probs * next_states + return hidden_states, (router_logits, expert_index) + + +class SwitchTransformersLayerFF(nn.Module): + r""" + Switch Transformers Feed Forward layer module. This is a wrapper around the Mixture of Experts module. + + Parameters: + config : ([`SwitchTransformersConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. + is_sparse (`bool`): + Whether the MLP layer is a `Sparse` layer (contains a Mixture of Experts) or not + """ + + def __init__(self, config: SwitchTransformersConfig, is_sparse=False): + super().__init__() + self.is_sparse = is_sparse + + # Check if it is a sparse layer, if not then it is a dense layer + if not self.is_sparse: + self.mlp = SwitchTransformersDenseActDense(config) + else: + self.mlp = SwitchTransformersSparseMLP(config) + + self.layer_norm = SwitchTransformersLayerNorm(config.d_model, eps=config.layer_norm_epsilon) + self.dropout = nn.Dropout(config.dropout_rate) + + def forward(self, hidden_states, output_router_logits): + forwarded_states = self.layer_norm(hidden_states) + forwarded_states = self.mlp(forwarded_states) + + if isinstance(forwarded_states, tuple): + forwarded_states, router_tuple = forwarded_states + else: + router_tuple = None + + output = hidden_states + self.dropout(forwarded_states) + + if output_router_logits and router_tuple is not None: + output = (output, router_tuple) + + return output + + +# Copied from transformers.models.t5.modeling_t5.T5Attention with T5->SwitchTransformers +class SwitchTransformersAttention(nn.Module): + def __init__(self, config: SwitchTransformersConfig, has_relative_attention_bias=False): + super().__init__() + self.is_decoder = config.is_decoder + self.has_relative_attention_bias = has_relative_attention_bias + self.relative_attention_num_buckets = config.relative_attention_num_buckets + self.relative_attention_max_distance = config.relative_attention_max_distance + self.d_model = config.d_model + self.key_value_proj_dim = config.d_kv + self.n_heads = config.num_heads + self.dropout = config.dropout_rate + self.inner_dim = self.n_heads * self.key_value_proj_dim + + # Mesh TensorFlow initialization to avoid scaling before softmax + self.q = nn.Linear(self.d_model, self.inner_dim, bias=False) + self.k = nn.Linear(self.d_model, self.inner_dim, bias=False) + self.v = nn.Linear(self.d_model, self.inner_dim, bias=False) + self.o = nn.Linear(self.inner_dim, self.d_model, bias=False) + + if self.has_relative_attention_bias: + self.relative_attention_bias = nn.Embedding(self.relative_attention_num_buckets, self.n_heads) + self.pruned_heads = set() + self.gradient_checkpointing = False + + def prune_heads(self, heads): + if len(heads) == 0: + return + heads, index = find_pruneable_heads_and_indices( + heads, self.n_heads, self.key_value_proj_dim, self.pruned_heads + ) + # Prune linear layers + self.q = prune_linear_layer(self.q, index) + self.k = prune_linear_layer(self.k, index) + self.v = prune_linear_layer(self.v, index) + self.o = prune_linear_layer(self.o, index, dim=1) + # Update hyper params + self.n_heads = self.n_heads - len(heads) + self.inner_dim = self.key_value_proj_dim * self.n_heads + self.pruned_heads = self.pruned_heads.union(heads) + + @staticmethod + def _relative_position_bucket(relative_position, bidirectional=True, num_buckets=32, max_distance=128): + """ + Adapted from Mesh Tensorflow: + https://github.com/tensorflow/mesh/blob/0cb87fe07da627bf0b7e60475d59f95ed6b5be3d/mesh_tensorflow/transformer/transformer_layers.py#L593 + + Translate relative position to a bucket number for relative attention. The relative position is defined as + memory_position - query_position, i.e. the distance in tokens from the attending position to the attended-to + position. If bidirectional=False, then positive relative positions are invalid. We use smaller buckets for + small absolute relative_position and larger buckets for larger absolute relative_positions. All relative + positions >=max_distance map to the same bucket. All relative positions <=-max_distance map to the same bucket. + This should allow for more graceful generalization to longer sequences than the model has been trained on + + Args: + relative_position: an int32 Tensor + bidirectional: a boolean - whether the attention is bidirectional + num_buckets: an integer + max_distance: an integer + + Returns: + a Tensor with the same shape as relative_position, containing int32 values in the range [0, num_buckets) + """ + relative_buckets = 0 + if bidirectional: + num_buckets //= 2 + relative_buckets += (relative_position > 0).to(torch.long) * num_buckets + relative_position = torch.abs(relative_position) + else: + relative_position = -torch.min(relative_position, torch.zeros_like(relative_position)) + # now relative_position is in the range [0, inf) + + # half of the buckets are for exact increments in positions + max_exact = num_buckets // 2 + is_small = relative_position < max_exact + + # The other half of the buckets are for logarithmically bigger bins in positions up to max_distance + relative_position_if_large = max_exact + ( + torch.log(relative_position.float() / max_exact) + / math.log(max_distance / max_exact) + * (num_buckets - max_exact) + ).to(torch.long) + relative_position_if_large = torch.min( + relative_position_if_large, torch.full_like(relative_position_if_large, num_buckets - 1) + ) + + relative_buckets += torch.where(is_small, relative_position, relative_position_if_large) + return relative_buckets + + def compute_bias(self, query_length, key_length, device=None): + """Compute binned relative position bias""" + if device is None: + device = self.relative_attention_bias.weight.device + context_position = torch.arange(query_length, dtype=torch.long, device=device)[:, None] + memory_position = torch.arange(key_length, dtype=torch.long, device=device)[None, :] + relative_position = memory_position - context_position # shape (query_length, key_length) + relative_position_bucket = self._relative_position_bucket( + relative_position, # shape (query_length, key_length) + bidirectional=(not self.is_decoder), + num_buckets=self.relative_attention_num_buckets, + max_distance=self.relative_attention_max_distance, + ) + values = self.relative_attention_bias(relative_position_bucket) # shape (query_length, key_length, num_heads) + values = values.permute([2, 0, 1]).unsqueeze(0) # shape (1, num_heads, query_length, key_length) + return values + + def forward( + self, + hidden_states, + mask=None, + key_value_states=None, + position_bias=None, + past_key_value=None, + layer_head_mask=None, + query_length=None, + use_cache=False, + output_attentions=False, + ): + """ + Self-attention (if key_value_states is None) or attention over source sentence (provided by key_value_states). + """ + # Input is (batch_size, seq_length, dim) + # Mask is (batch_size, key_length) (non-causal) or (batch_size, key_length, key_length) + # past_key_value[0] is (batch_size, n_heads, q_len - 1, dim_per_head) + batch_size, seq_length = hidden_states.shape[:2] + + real_seq_length = seq_length + + if past_key_value is not None: + if len(past_key_value) != 2: + raise ValueError( + f"past_key_value should have 2 past states: keys and values. Got { len(past_key_value)} past states" + ) + real_seq_length += past_key_value[0].shape[2] if query_length is None else query_length + + key_length = real_seq_length if key_value_states is None else key_value_states.shape[1] + + def shape(states): + """projection""" + return states.view(batch_size, -1, self.n_heads, self.key_value_proj_dim).transpose(1, 2) + + def unshape(states): + """reshape""" + return states.transpose(1, 2).contiguous().view(batch_size, -1, self.inner_dim) + + def project(hidden_states, proj_layer, key_value_states, past_key_value): + """projects hidden states correctly to key/query states""" + if key_value_states is None: + # self-attn + # (batch_size, n_heads, seq_length, dim_per_head) + hidden_states = shape(proj_layer(hidden_states)) + elif past_key_value is None: + # cross-attn + # (batch_size, n_heads, seq_length, dim_per_head) + hidden_states = shape(proj_layer(key_value_states)) + + if past_key_value is not None: + if key_value_states is None: + # self-attn + # (batch_size, n_heads, key_length, dim_per_head) + hidden_states = torch.cat([past_key_value, hidden_states], dim=2) + elif past_key_value.shape[2] != key_value_states.shape[1]: + # checking that the `sequence_length` of the `past_key_value` is the same as + # the provided `key_value_states` to support prefix tuning + # cross-attn + # (batch_size, n_heads, seq_length, dim_per_head) + hidden_states = shape(proj_layer(key_value_states)) + else: + # cross-attn + hidden_states = past_key_value + return hidden_states + + # get query states + query_states = shape(self.q(hidden_states)) # (batch_size, n_heads, seq_length, dim_per_head) + + # get key/value states + key_states = project( + hidden_states, self.k, key_value_states, past_key_value[0] if past_key_value is not None else None + ) + value_states = project( + hidden_states, self.v, key_value_states, past_key_value[1] if past_key_value is not None else None + ) + + # compute scores + scores = torch.matmul( + query_states, key_states.transpose(3, 2) + ) # equivalent of torch.einsum("bnqd,bnkd->bnqk", query_states, key_states), compatible with onnx op>9 + + if position_bias is None: + if not self.has_relative_attention_bias: + position_bias = torch.zeros( + (1, self.n_heads, real_seq_length, key_length), device=scores.device, dtype=scores.dtype + ) + if self.gradient_checkpointing and self.training: + position_bias.requires_grad = True + else: + position_bias = self.compute_bias(real_seq_length, key_length, device=scores.device) + + # if key and values are already calculated + # we want only the last query position bias + if past_key_value is not None: + position_bias = position_bias[:, :, -hidden_states.size(1) :, :] + + if mask is not None: + position_bias = position_bias + mask # (batch_size, n_heads, seq_length, key_length) + + if self.pruned_heads: + mask = torch.ones(position_bias.shape[1]) + mask[list(self.pruned_heads)] = 0 + position_bias_masked = position_bias[:, mask.bool()] + else: + position_bias_masked = position_bias + + scores += position_bias_masked + attn_weights = nn.functional.softmax(scores.float(), dim=-1).type_as( + scores + ) # (batch_size, n_heads, seq_length, key_length) + attn_weights = nn.functional.dropout( + attn_weights, p=self.dropout, training=self.training + ) # (batch_size, n_heads, seq_length, key_length) + + # Mask heads if we want to + if layer_head_mask is not None: + attn_weights = attn_weights * layer_head_mask + + attn_output = unshape(torch.matmul(attn_weights, value_states)) # (batch_size, seq_length, dim) + attn_output = self.o(attn_output) + + present_key_value_state = (key_states, value_states) if (self.is_decoder and use_cache) else None + outputs = (attn_output,) + (present_key_value_state,) + (position_bias,) + + if output_attentions: + outputs = outputs + (attn_weights,) + return outputs + + +# Copied from transformers.models.t5.modeling_t5.T5LayerSelfAttention with T5->SwitchTransformers +class SwitchTransformersLayerSelfAttention(nn.Module): + def __init__(self, config, has_relative_attention_bias=False): + super().__init__() + self.SelfAttention = SwitchTransformersAttention( + config, has_relative_attention_bias=has_relative_attention_bias + ) + self.layer_norm = SwitchTransformersLayerNorm(config.d_model, eps=config.layer_norm_epsilon) + self.dropout = nn.Dropout(config.dropout_rate) + + def forward( + self, + hidden_states, + attention_mask=None, + position_bias=None, + layer_head_mask=None, + past_key_value=None, + use_cache=False, + output_attentions=False, + ): + normed_hidden_states = self.layer_norm(hidden_states) + attention_output = self.SelfAttention( + normed_hidden_states, + mask=attention_mask, + position_bias=position_bias, + layer_head_mask=layer_head_mask, + past_key_value=past_key_value, + use_cache=use_cache, + output_attentions=output_attentions, + ) + hidden_states = hidden_states + self.dropout(attention_output[0]) + outputs = (hidden_states,) + attention_output[1:] # add attentions if we output them + return outputs + + +# Copied from transformers.models.t5.modeling_t5.T5LayerCrossAttention with T5->SwitchTransformers +class SwitchTransformersLayerCrossAttention(nn.Module): + def __init__(self, config): + super().__init__() + self.EncDecAttention = SwitchTransformersAttention(config, has_relative_attention_bias=False) + self.layer_norm = SwitchTransformersLayerNorm(config.d_model, eps=config.layer_norm_epsilon) + self.dropout = nn.Dropout(config.dropout_rate) + + def forward( + self, + hidden_states, + key_value_states, + attention_mask=None, + position_bias=None, + layer_head_mask=None, + past_key_value=None, + use_cache=False, + query_length=None, + output_attentions=False, + ): + normed_hidden_states = self.layer_norm(hidden_states) + attention_output = self.EncDecAttention( + normed_hidden_states, + mask=attention_mask, + key_value_states=key_value_states, + position_bias=position_bias, + layer_head_mask=layer_head_mask, + past_key_value=past_key_value, + use_cache=use_cache, + query_length=query_length, + output_attentions=output_attentions, + ) + layer_output = hidden_states + self.dropout(attention_output[0]) + outputs = (layer_output,) + attention_output[1:] # add attentions if we output them + return outputs + + +class SwitchTransformersBlock(nn.Module): + def __init__(self, config, has_relative_attention_bias=False, is_sparse=False): + super().__init__() + self.is_decoder = config.is_decoder + self.is_sparse = is_sparse + self.layer = nn.ModuleList() + self.layer.append( + SwitchTransformersLayerSelfAttention(config, has_relative_attention_bias=has_relative_attention_bias) + ) + if self.is_decoder: + self.layer.append(SwitchTransformersLayerCrossAttention(config)) + + self.layer.append(SwitchTransformersLayerFF(config, is_sparse=self.is_sparse)) + + def forward( + self, + hidden_states, + attention_mask=None, + position_bias=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + encoder_decoder_position_bias=None, + layer_head_mask=None, + cross_attn_layer_head_mask=None, + past_key_value=None, + use_cache=False, + output_attentions=False, + output_router_logits=True, + return_dict=True, + ): + if past_key_value is not None: + if not self.is_decoder: + logger.warning("`past_key_values` is passed to the encoder. Please make sure this is intended.") + expected_num_past_key_values = 2 if encoder_hidden_states is None else 4 + + if len(past_key_value) != expected_num_past_key_values: + raise ValueError( + f"There should be {expected_num_past_key_values} past states. " + f"{'2 (past / key) for cross attention. ' if expected_num_past_key_values == 4 else ''}" + f"Got {len(past_key_value)} past key / value states" + ) + + self_attn_past_key_value = past_key_value[:2] + cross_attn_past_key_value = past_key_value[2:] + else: + self_attn_past_key_value, cross_attn_past_key_value = None, None + + self_attention_outputs = self.layer[0]( + hidden_states, + attention_mask=attention_mask, + position_bias=position_bias, + layer_head_mask=layer_head_mask, + past_key_value=self_attn_past_key_value, + use_cache=use_cache, + output_attentions=output_attentions, + ) + hidden_states, present_key_value_state = self_attention_outputs[:2] + attention_outputs = self_attention_outputs[2:] # Keep self-attention outputs and relative position weights + + # clamp inf values to enable fp16 training + if hidden_states.dtype == torch.float16 and torch.isinf(hidden_states).any(): + clamp_value = torch.finfo(hidden_states.dtype).max - 1000 + hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value) + + do_cross_attention = self.is_decoder and encoder_hidden_states is not None + if do_cross_attention: + # the actual query length is unknown for cross attention + # if using past key value states. Need to inject it here + if present_key_value_state is not None: + query_length = present_key_value_state[0].shape[2] + else: + query_length = None + + cross_attention_outputs = self.layer[1]( + hidden_states, + key_value_states=encoder_hidden_states, + attention_mask=encoder_attention_mask, + position_bias=encoder_decoder_position_bias, + layer_head_mask=cross_attn_layer_head_mask, + past_key_value=cross_attn_past_key_value, + query_length=query_length, + use_cache=use_cache, + output_attentions=output_attentions, + ) + hidden_states = cross_attention_outputs[0] + + # clamp inf values to enable fp16 training + if hidden_states.dtype == torch.float16 and torch.isinf(hidden_states).any(): + clamp_value = torch.finfo(hidden_states.dtype).max - 1000 + hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value) + + # Combine self attn and cross attn key value states + if present_key_value_state is not None: + present_key_value_state = present_key_value_state + cross_attention_outputs[1] + + # Keep cross-attention outputs and relative position weights + attention_outputs = attention_outputs + cross_attention_outputs[2:] + + # Apply Feed Forward layer + hidden_states = self.layer[-1](hidden_states, output_router_logits) + + if isinstance(hidden_states, tuple): + hidden_states, router_tuple = hidden_states + else: + router_tuple = (torch.zeros((1,), device=hidden_states.device, dtype=torch.int64),) + + # clamp inf values to enable fp16 training + if hidden_states.dtype == torch.float16 and torch.isinf(hidden_states).any(): + clamp_value = torch.finfo(hidden_states.dtype).max - 1000 + hidden_states = torch.clamp(hidden_states, min=-clamp_value, max=clamp_value) + + outputs = (hidden_states,) + + if use_cache: + outputs = outputs + (present_key_value_state,) + attention_outputs + (router_tuple,) + else: + outputs = outputs + attention_outputs + (router_tuple,) + + return outputs # hidden-states, present_key_value_states, (self-attention position bias), (self-attention weights), (cross-attention position bias), (cross-attention weights), (router_tuple) + + +class SwitchTransformersPreTrainedModel(PreTrainedModel): + """ + An abstract class to handle weights initialization and a simple interface for downloading and loading pretrained + models. + """ + + config_class = SwitchTransformersConfig + base_model_prefix = "switch_transformers" + supports_gradient_checkpointing = True + _no_split_modules = ["SwitchTransformersBlock"] + + @property + def dummy_inputs(self): + input_ids = torch.tensor(DUMMY_INPUTS) + input_mask = torch.tensor(DUMMY_MASK) + dummy_inputs = { + "decoder_input_ids": input_ids, + "input_ids": input_ids, + "decoder_attention_mask": input_mask, + } + return dummy_inputs + + def _init_weights(self, module): + """Initialize the weights""" + factor = self.config.initializer_factor # Used for testing weights initialization + if isinstance(module, SwitchTransformersLayerNorm): + module.weight.data.fill_(factor * 1.0) + elif isinstance( + module, + (SwitchTransformersModel, SwitchTransformersForConditionalGeneration, SwitchTransformersEncoderModel), + ): + # Mesh TensorFlow embeddings initialization + # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/layers.py#L1624 + module.shared.weight.data.normal_(mean=0.0, std=factor * 1.0) + if hasattr(module, "lm_head") and not self.config.tie_word_embeddings: + module.lm_head.weight.data.normal_(mean=0.0, std=factor * 1.0) + elif isinstance(module, SwitchTransformersDenseActDense): + # Mesh TensorFlow FF initialization + # See https://github.com/tensorflow/mesh/blob/master/mesh_tensorflow/transformer/transformer_layers.py#L56 + # and https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/layers.py#L89 + module.wi.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_model) ** -0.5)) + if hasattr(module.wi, "bias") and module.wi.bias is not None: + module.wi.bias.data.zero_() + module.wo.weight.data.normal_(mean=0.0, std=factor * ((self.config.d_ff) ** -0.5)) + if hasattr(module.wo, "bias") and module.wo.bias is not None: + module.wo.bias.data.zero_() + elif isinstance(module, SwitchTransformersAttention): + # Mesh TensorFlow attention initialization to avoid scaling before softmax + # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/transformer/attention.py#L136 + d_model = self.config.d_model + key_value_proj_dim = self.config.d_kv + n_heads = self.config.num_heads + module.q.weight.data.normal_(mean=0.0, std=factor * ((d_model * key_value_proj_dim) ** -0.5)) + module.k.weight.data.normal_(mean=0.0, std=factor * (d_model**-0.5)) + module.v.weight.data.normal_(mean=0.0, std=factor * (d_model**-0.5)) + module.o.weight.data.normal_(mean=0.0, std=factor * ((n_heads * key_value_proj_dim) ** -0.5)) + if module.has_relative_attention_bias: + module.relative_attention_bias.weight.data.normal_(mean=0.0, std=factor * ((d_model) ** -0.5)) + elif isinstance(module, SwitchTransformersSparseMLP): + # Mesh TensorFlow attention initialization to avoid scaling before softmax + # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/transformer/attention.py#L136 + d_model = self.config.d_model + key_value_proj_dim = self.config.d_kv + n_heads = self.config.num_heads + module.router.classifier.weight.data.normal_(mean=0.0, std=factor * 1) + for idx in range(self.config.num_experts): + module.experts[f"expert_{idx}"].wi.weight.data.normal_(mean=0.0, std=factor * (d_model**-0.5)) + module.experts[f"expert_{idx}"].wo.weight.data.normal_(mean=0.0, std=factor * (d_model**-0.5)) + + def _shift_right(self, input_ids): + decoder_start_token_id = self.config.decoder_start_token_id + pad_token_id = self.config.pad_token_id + + if decoder_start_token_id is None: + raise ValueError( + "self.model.config.decoder_start_token_id has to be defined. In SwitchTransformers it is usually set" + " to the pad_token_id. See SwitchTransformers docs for more information" + ) + + # shift inputs to the right + if is_torch_fx_proxy(input_ids): + # Item assignment is not supported natively for proxies. + shifted_input_ids = torch.full(input_ids.shape[:-1] + (1,), decoder_start_token_id) + shifted_input_ids = torch.cat([shifted_input_ids, input_ids[..., :-1]], dim=-1) + else: + shifted_input_ids = input_ids.new_zeros(input_ids.shape) + shifted_input_ids[..., 1:] = input_ids[..., :-1].clone() + shifted_input_ids[..., 0] = decoder_start_token_id + + if pad_token_id is None: + raise ValueError("self.model.config.pad_token_id has to be defined.") + # replace possible -100 values in labels by `pad_token_id` + shifted_input_ids.masked_fill_(shifted_input_ids == -100, pad_token_id) + + return shifted_input_ids + + +class SwitchTransformersStack(SwitchTransformersPreTrainedModel): + def __init__(self, config, embed_tokens=None): + super().__init__(config) + + self.embed_tokens = nn.Embedding(config.vocab_size, config.d_model) + + if embed_tokens is not None: + self.embed_tokens.weight = embed_tokens.weight + + self.is_decoder = config.is_decoder + + sparse_step = config.decoder_sparse_step if self.is_decoder else config.encoder_sparse_step + config.num_layers = config.num_decoder_layers if self.is_decoder else config.num_layers + self.block = nn.ModuleList() + for i in range(config.num_layers): + is_sparse = (i % sparse_step == 1 or sparse_step == 1) if sparse_step > 0 else False + + self.block.append( + SwitchTransformersBlock(config, has_relative_attention_bias=bool(i == 0), is_sparse=is_sparse) + ) + + self.final_layer_norm = SwitchTransformersLayerNorm(config.d_model, eps=config.layer_norm_epsilon) + self.dropout = nn.Dropout(config.dropout_rate) + + # Initialize weights and apply final processing + self.post_init() + + self.device_map = None + self.gradient_checkpointing = False + + def get_input_embeddings(self): + return self.embed_tokens + + def set_input_embeddings(self, new_embeddings): + self.embed_tokens = new_embeddings + + def forward( + self, + input_ids=None, + attention_mask=None, + encoder_hidden_states=None, + encoder_attention_mask=None, + inputs_embeds=None, + head_mask=None, + cross_attn_head_mask=None, + past_key_values=None, + use_cache=None, + output_attentions=None, + output_hidden_states=None, + output_router_logits=True, + return_dict=None, + ): + use_cache = use_cache if use_cache is not None else self.config.use_cache + output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions + output_hidden_states = ( + output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states + ) + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + if input_ids is not None and inputs_embeds is not None: + err_msg_prefix = "decoder_" if self.is_decoder else "" + raise ValueError( + f"You cannot specify both {err_msg_prefix}input_ids and {err_msg_prefix}inputs_embeds at the same time" + ) + elif input_ids is not None: + input_shape = input_ids.size() + input_ids = input_ids.view(-1, input_shape[-1]) + elif inputs_embeds is not None: + input_shape = inputs_embeds.size()[:-1] + else: + err_msg_prefix = "decoder_" if self.is_decoder else "" + raise ValueError(f"You have to specify either {err_msg_prefix}input_ids or {err_msg_prefix}inputs_embeds") + + if inputs_embeds is None: + if self.embed_tokens is None: + raise ValueError("You have to initialize the model with valid token embeddings") + inputs_embeds = self.embed_tokens(input_ids) + + batch_size, seq_length = input_shape + + # required mask seq length can be calculated via length of past + mask_seq_length = past_key_values[0][0].shape[2] + seq_length if past_key_values is not None else seq_length + + if use_cache is True: + if not self.is_decoder: + raise ValueError(f"`use_cache` can only be set to `True` if {self} is used as a decoder") + + if attention_mask is None: + attention_mask = torch.ones(batch_size, mask_seq_length, device=inputs_embeds.device) + if self.is_decoder and encoder_attention_mask is None and encoder_hidden_states is not None: + encoder_seq_length = encoder_hidden_states.shape[1] + encoder_attention_mask = torch.ones( + batch_size, encoder_seq_length, device=inputs_embeds.device, dtype=torch.long + ) + + # initialize past_key_values with `None` if past does not exist + if past_key_values is None: + past_key_values = [None] * len(self.block) + + # We can provide a self-attention mask of dimensions [batch_size, from_seq_length, to_seq_length] + # ourselves in which case we just need to make it broadcastable to all heads. + extended_attention_mask = self.get_extended_attention_mask(attention_mask, input_shape) + + # If a 2D or 3D attention mask is provided for the cross-attention + # we need to make broadcastable to [batch_size, num_heads, seq_length, seq_length] + if self.is_decoder and encoder_hidden_states is not None: + encoder_batch_size, encoder_sequence_length, _ = encoder_hidden_states.size() + encoder_hidden_shape = (encoder_batch_size, encoder_sequence_length) + if encoder_attention_mask is None: + encoder_attention_mask = torch.ones(encoder_hidden_shape, device=inputs_embeds.device) + encoder_extended_attention_mask = self.invert_attention_mask(encoder_attention_mask) + else: + encoder_extended_attention_mask = None + + if self.gradient_checkpointing and self.training: + if use_cache: + logger.warning_once( + "`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..." + ) + use_cache = False + + # Prepare head mask if needed + head_mask = self.get_head_mask(head_mask, self.config.num_layers) + cross_attn_head_mask = self.get_head_mask(cross_attn_head_mask, self.config.num_layers) + present_key_value_states = () if use_cache else None + all_hidden_states = () if output_hidden_states else None + all_attentions = () if output_attentions else None + all_router_probs = () if output_router_logits else None + all_cross_attentions = () if (output_attentions and self.is_decoder) else None + position_bias = None + encoder_decoder_position_bias = None + + hidden_states = self.dropout(inputs_embeds) + + for i, (layer_module, past_key_value) in enumerate(zip(self.block, past_key_values)): + layer_head_mask = head_mask[i] + cross_attn_layer_head_mask = cross_attn_head_mask[i] + + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if self.gradient_checkpointing and self.training: + layer_outputs = self._gradient_checkpointing_func( + layer_module.forward, + hidden_states, + extended_attention_mask, + position_bias, + encoder_hidden_states, + encoder_extended_attention_mask, + encoder_decoder_position_bias, + layer_head_mask, + cross_attn_layer_head_mask, + None, # past_key_value is always None with gradient checkpointing + use_cache, + output_attentions, + ) + else: + layer_outputs = layer_module( + hidden_states, + attention_mask=extended_attention_mask, + position_bias=position_bias, + encoder_hidden_states=encoder_hidden_states, + encoder_attention_mask=encoder_extended_attention_mask, + encoder_decoder_position_bias=encoder_decoder_position_bias, + layer_head_mask=layer_head_mask, + cross_attn_layer_head_mask=cross_attn_layer_head_mask, + past_key_value=past_key_value, + use_cache=use_cache, + output_attentions=output_attentions, + output_router_logits=output_router_logits, + ) + + router_probs = layer_outputs[-1] + layer_outputs = layer_outputs[:-1] + + # layer_outputs is a tuple with: + # hidden-states, key-value-states, (self-attention position bias), (self-attention weights), (cross-attention position bias), (cross-attention weights) + if use_cache is False: + layer_outputs = layer_outputs[:1] + (None,) + layer_outputs[1:] + + hidden_states, present_key_value_state = layer_outputs[:2] + + # We share the position biases between the layers - the first layer store them + # layer_outputs = hidden-states, key-value-states (self-attention position bias), (self-attention weights), + # (cross-attention position bias), (cross-attention weights) + position_bias = layer_outputs[2] + if self.is_decoder and encoder_hidden_states is not None: + encoder_decoder_position_bias = layer_outputs[4 if output_attentions else 3] + # append next layer key value states + if use_cache: + present_key_value_states = present_key_value_states + (present_key_value_state,) + + if output_attentions: + all_attentions = all_attentions + (layer_outputs[3],) + if self.is_decoder: + all_cross_attentions = all_cross_attentions + (layer_outputs[5],) + + if output_router_logits: + all_router_probs = all_router_probs + (router_probs,) + + hidden_states = self.final_layer_norm(hidden_states) + hidden_states = self.dropout(hidden_states) + + # Add last layer + if output_hidden_states: + all_hidden_states = all_hidden_states + (hidden_states,) + + if not return_dict: + return tuple( + v + for v in [ + hidden_states, + present_key_value_states, + all_hidden_states, + all_attentions, + all_cross_attentions, + all_router_probs, + ] + if v is not None + ) + return MoEModelOutputWithPastAndCrossAttentions( + last_hidden_state=hidden_states, + past_key_values=present_key_value_states, + hidden_states=all_hidden_states, + attentions=all_attentions, + cross_attentions=all_cross_attentions, + router_probs=all_router_probs, + ) + + +SWITCH_TRANSFORMERS_START_DOCSTRING = r""" + + The SWITCH_TRANSFORMERS model was proposed in [Switch Transformers: Scaling to Trillion Parameter Models with + Simple and Efficient Sparsity](https://arxiv.org/abs/2101.03961) by [William + Fedus](https://arxiv.org/search/cs?searchtype=author&query=Fedus%2C+W), [Barret + Zoph](https://arxiv.org/search/cs?searchtype=author&query=Zoph%2C+B), and [Noam + Shazeer](https://arxiv.org/search/cs?searchtype=author&query=Shazeer%2C+N). It's an encoder-decoder T5-like model + with sparse Feed Forward that stands for Mixture of Experts (MoE) architecture. + + This model inherits from [`PreTrainedModel`]. Check the superclass documentation for the generic methods the + library implements for all its model (such as downloading or saving, resizing the input embeddings, pruning heads + etc.) + + This model is also a PyTorch [torch.nn.Module](https://pytorch.org/docs/stable/nn.html#torch.nn.Module) subclass. + Use it as a regular PyTorch Module and refer to the PyTorch documentation for all matter related to general usage + and behavior. + + Parameters: + config ([`SwitchTransformersConfig`]): Model configuration class with all the parameters of the model. + Initializing with a config file does not load the weights associated with the model, only the + configuration. Check out the [`~PreTrainedModel.from_pretrained`] method to load the model weights. +""" + +SWITCH_TRANSFORMERS_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. SWITCH_TRANSFORMERS is a model with relative position + embeddings so you should be able to pad the inputs on both the right and the left. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for detail. + + [What are input IDs?](../glossary#input-ids) + + To know more on how to prepare `input_ids` for pretraining take a look a [SWITCH_TRANSFORMERS + Training](./switch_transformers#training). + attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + decoder_input_ids (`torch.LongTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Indices of decoder input sequence tokens in the vocabulary. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for details. + + [What are decoder input IDs?](../glossary#decoder-input-ids) + + SWITCH_TRANSFORMERS uses the `pad_token_id` as the starting token for `decoder_input_ids` generation. If + `past_key_values` is used, optionally only the last `decoder_input_ids` have to be input (see + `past_key_values`). + + To know more on how to prepare `decoder_input_ids` for pretraining take a look at [SWITCH_TRANSFORMERS + Training](./switch_transformers#training). + decoder_attention_mask (`torch.BoolTensor` of shape `(batch_size, target_sequence_length)`, *optional*): + Default behavior: generate a tensor that ignores pad tokens in `decoder_input_ids`. Causal mask will also + be used by default. + head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules in the encoder. Mask values selected in `[0, + 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + decoder_head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules in the decoder. Mask values selected in `[0, + 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + cross_attn_head_mask (`torch.Tensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the cross-attention modules in the decoder. Mask values selected in + `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + encoder_outputs (`tuple(tuple(torch.FloatTensor)`, *optional*): + Tuple consists of (`last_hidden_state`, `optional`: *hidden_states*, `optional`: *attentions*) + `last_hidden_state` of shape `(batch_size, sequence_length, hidden_size)` is a sequence of hidden states at + the output of the last layer of the encoder. Used in the cross-attention of the decoder. + past_key_values (`tuple(tuple(torch.FloatTensor))` of length `config.n_layers` with each tuple having 4 tensors of shape `(batch_size, num_heads, sequence_length - 1, embed_size_per_head)`): + Contains precomputed key and value hidden states of the attention blocks. Can be used to speed up decoding. + + If `past_key_values` are used, the user can optionally input only the last `decoder_input_ids` (those that + don't have their past key value states given to this model) of shape `(batch_size, 1)` instead of all + `decoder_input_ids` of shape `(batch_size, sequence_length)`. + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + decoder_inputs_embeds (`torch.FloatTensor` of shape `(batch_size, target_sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `decoder_input_ids` you can choose to directly pass an embedded + representation. If `past_key_values` is used, optionally only the last `decoder_inputs_embeds` have to be + input (see `past_key_values`). This is useful if you want more control over how to convert + `decoder_input_ids` indices into associated vectors than the model's internal embedding lookup matrix. + + If `decoder_input_ids` and `decoder_inputs_embeds` are both unset, `decoder_inputs_embeds` takes the value + of `inputs_embeds`. + + use_cache (`bool`, *optional*): + If set to `True`, `past_key_values` key value states are returned and can be used to speed up decoding (see + `past_key_values`). + + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + output_router_logits (`bool`, *optional*): + Whether or not to return the logits of all the routers. They are useful for computing the router loss, and + should not be returned during inference. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + +SWITCH_TRANSFORMERS_ENCODER_INPUTS_DOCSTRING = r""" + Args: + input_ids (`torch.LongTensor` of shape `(batch_size, sequence_length)`): + Indices of input sequence tokens in the vocabulary. SWITCH_TRANSFORMERS is a model with relative position + embeddings so you should be able to pad the inputs on both the right and the left. + + Indices can be obtained using [`AutoTokenizer`]. See [`PreTrainedTokenizer.encode`] and + [`PreTrainedTokenizer.__call__`] for detail. + + To know more on how to prepare `input_ids` for pretraining take a look a [SWITCH_TRANSFORMERS + Training](./switch_transformers#training). + attention_mask (`torch.FloatTensor` of shape `(batch_size, sequence_length)`, *optional*): + Mask to avoid performing attention on padding token indices. Mask values selected in `[0, 1]`: + + - 1 for tokens that are **not masked**, + - 0 for tokens that are **masked**. + + [What are attention masks?](../glossary#attention-mask) + head_mask (`torch.FloatTensor` of shape `(num_heads,)` or `(num_layers, num_heads)`, *optional*): + Mask to nullify selected heads of the self-attention modules. Mask values selected in `[0, 1]`: + + - 1 indicates the head is **not masked**, + - 0 indicates the head is **masked**. + + inputs_embeds (`torch.FloatTensor` of shape `(batch_size, sequence_length, hidden_size)`, *optional*): + Optionally, instead of passing `input_ids` you can choose to directly pass an embedded representation. This + is useful if you want more control over how to convert `input_ids` indices into associated vectors than the + model's internal embedding lookup matrix. + output_attentions (`bool`, *optional*): + Whether or not to return the attentions tensors of all attention layers. See `attentions` under returned + tensors for more detail. + output_hidden_states (`bool`, *optional*): + Whether or not to return the hidden states of all layers. See `hidden_states` under returned tensors for + more detail. + output_router_logits (`bool`, *optional*): + Whether or not to return the logits of all the routers. They are useful for computing the router loss, and + should not be returned during inference. + return_dict (`bool`, *optional*): + Whether or not to return a [`~utils.ModelOutput`] instead of a plain tuple. +""" + +# Warning message for FutureWarning: head_mask was separated into two input args - head_mask, decoder_head_mask +__HEAD_MASK_WARNING_MSG = """ +The input argument `head_mask` was split into two arguments `head_mask` and `decoder_head_mask`. Currently, +`decoder_head_mask` is set to copy `head_mask`, but this feature is deprecated and will be removed in future versions. +If you do not want to use any `decoder_head_mask` now, please set `decoder_head_mask = torch.ones(num_layers, +num_heads)`. +""" + + +@add_start_docstrings( + "The bare SWITCH_TRANSFORMERS Model transformer outputting raw hidden-states without any specific head on top.", + SWITCH_TRANSFORMERS_START_DOCSTRING, +) +class SwitchTransformersModel(SwitchTransformersPreTrainedModel): + _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight"] + + def __init__(self, config: SwitchTransformersConfig): + super().__init__(config) + self.shared = nn.Embedding(config.vocab_size, config.d_model) + + encoder_config = copy.deepcopy(config) + encoder_config.is_decoder = False + encoder_config.use_cache = False + encoder_config.is_encoder_decoder = False + self.encoder = SwitchTransformersStack(encoder_config, self.shared) + + decoder_config = copy.deepcopy(config) + decoder_config.is_decoder = True + decoder_config.is_encoder_decoder = False + self.decoder = SwitchTransformersStack(decoder_config, self.shared) + + # Initialize weights and apply final processing + self.post_init() + + # Model parallel + self.device_map = None + + def get_input_embeddings(self): + return self.shared + + def set_input_embeddings(self, new_embeddings): + self.shared = new_embeddings + self.encoder.set_input_embeddings(new_embeddings) + self.decoder.set_input_embeddings(new_embeddings) + + def _tie_weights(self): + if self.config.tie_word_embeddings: + self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared) + self._tie_or_clone_weights(self.decoder.embed_tokens, self.shared) + + def get_encoder(self): + return self.encoder + + def get_decoder(self): + return self.decoder + + def _prune_heads(self, heads_to_prune): + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base + class PreTrainedModel + """ + for layer, heads in heads_to_prune.items(): + self.encoder.layer[layer].attention.prune_heads(heads) + + @add_start_docstrings_to_model_forward(SWITCH_TRANSFORMERS_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=Seq2SeqMoEModelOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + decoder_input_ids: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.BoolTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + decoder_head_mask: Optional[torch.FloatTensor] = None, + cross_attn_head_mask: Optional[torch.Tensor] = None, + encoder_outputs: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + past_key_values: Optional[Tuple[Tuple[torch.FloatTensor]]] = None, + inputs_embeds: Optional[torch.Tensor] = None, + decoder_inputs_embeds: Optional[torch.Tensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + output_router_logits: Optional[bool] = None, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], Seq2SeqMoEModelOutput]: + r""" + Returns: + + Example: + + ```python + >>> from transformers import AutoTokenizer, SwitchTransformersModel + + >>> tokenizer = AutoTokenizer.from_pretrained("google/switch-base-8") + >>> model = SwitchTransformersModel.from_pretrained("google/switch-base-8") + + >>> input_ids = tokenizer( + ... "Studies have been shown that owning a dog is good for you", return_tensors="pt" + ... ).input_ids # Batch size 1 + >>> decoder_input_ids = tokenizer("Studies show that", return_tensors="pt").input_ids # Batch size 1 + + >>> # preprocess: Prepend decoder_input_ids with start token which is pad token for SwitchTransformersModel. + >>> # This is not needed for torch's SwitchTransformersForConditionalGeneration as it does this internally using labels arg. + >>> decoder_input_ids = model._shift_right(decoder_input_ids) + + >>> # forward pass + >>> outputs = model(input_ids=input_ids, decoder_input_ids=decoder_input_ids) + >>> last_hidden_states = outputs.last_hidden_state + ```""" + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # FutureWarning: head_mask was separated into two input args - head_mask, decoder_head_mask + if head_mask is not None and decoder_head_mask is None: + if self.config.num_layers == self.config.num_decoder_layers: + warnings.warn(__HEAD_MASK_WARNING_MSG, FutureWarning) + decoder_head_mask = head_mask + + if ( + output_router_logits + and self.config.num_sparse_encoder_layers == 0 + and self.config.num_sparse_encoder_layers == 0 + ): + raise ValueError( + "You asked to return `output_router_logits` but the transformer in dense, and does " + " not contain any sparse MLP Layers. Set `output_router_logits = False` and restart" + ) + # Encode if needed (training, first prediction pass) + if encoder_outputs is None: + encoder_outputs = self.encoder( + input_ids=input_ids, + attention_mask=attention_mask, + inputs_embeds=inputs_embeds, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + output_router_logits=output_router_logits, + return_dict=return_dict, + ) + elif return_dict and not isinstance(encoder_outputs, MoEModelOutput): + encoder_outputs = MoEModelOutput( + last_hidden_state=encoder_outputs[0], + hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None, + attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None, + router_probs=encoder_outputs[3] if len(encoder_outputs) > 3 else None, + ) + + hidden_states = encoder_outputs[0] + + # Decode + decoder_outputs = self.decoder( + input_ids=decoder_input_ids, + attention_mask=decoder_attention_mask, + inputs_embeds=decoder_inputs_embeds, + past_key_values=past_key_values, + encoder_hidden_states=hidden_states, + encoder_attention_mask=attention_mask, + head_mask=decoder_head_mask, + cross_attn_head_mask=cross_attn_head_mask, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + output_router_logits=output_router_logits, + return_dict=return_dict, + ) + + if not return_dict: + return decoder_outputs + encoder_outputs + + return Seq2SeqMoEModelOutput( + last_hidden_state=decoder_outputs.last_hidden_state, + past_key_values=decoder_outputs.past_key_values, + decoder_hidden_states=decoder_outputs.hidden_states, + decoder_attentions=decoder_outputs.attentions, + cross_attentions=decoder_outputs.cross_attentions, + decoder_router_logits=decoder_outputs.router_probs, + encoder_last_hidden_state=encoder_outputs.last_hidden_state, + encoder_hidden_states=encoder_outputs.hidden_states, + encoder_attentions=encoder_outputs.attentions, + encoder_router_logits=encoder_outputs.router_probs, + ) + + +@add_start_docstrings( + """SWITCH_TRANSFORMERS Model with a `language modeling` head on top.""", SWITCH_TRANSFORMERS_START_DOCSTRING +) +class SwitchTransformersForConditionalGeneration(SwitchTransformersPreTrainedModel): + _tied_weights_keys = ["encoder.embed_tokens.weight", "decoder.embed_tokens.weight", "lm_head.weight"] + + def __init__(self, config: SwitchTransformersConfig): + super().__init__(config) + self.model_dim = config.d_model + + self.shared = nn.Embedding(config.vocab_size, config.d_model) + + encoder_config = copy.deepcopy(config) + encoder_config.is_decoder = False + encoder_config.use_cache = False + encoder_config.is_encoder_decoder = False + self.encoder = SwitchTransformersStack(encoder_config, self.shared) + + decoder_config = copy.deepcopy(config) + decoder_config.is_decoder = True + decoder_config.is_encoder_decoder = False + decoder_config.num_layers = config.num_decoder_layers + self.decoder = SwitchTransformersStack(decoder_config, self.shared) + + self.lm_head = nn.Linear(config.d_model, config.vocab_size, bias=False) + + self.router_z_loss_coef = config.router_z_loss_coef + self.router_aux_loss_coef = config.router_aux_loss_coef + + # Initialize weights and apply final processing + self.post_init() + + # Model parallel + self.device_map = None + + def get_input_embeddings(self): + return self.shared + + def set_input_embeddings(self, new_embeddings): + self.shared = new_embeddings + self.encoder.set_input_embeddings(new_embeddings) + self.decoder.set_input_embeddings(new_embeddings) + + def _tie_weights(self): + if self.config.tie_word_embeddings: + self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared) + self._tie_or_clone_weights(self.decoder.embed_tokens, self.shared) + + def set_output_embeddings(self, new_embeddings): + self.lm_head = new_embeddings + + def get_output_embeddings(self): + return self.lm_head + + def get_encoder(self): + return self.encoder + + def get_decoder(self): + return self.decoder + + @add_start_docstrings_to_model_forward(SWITCH_TRANSFORMERS_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=Seq2SeqMoEOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + decoder_input_ids: Optional[torch.LongTensor] = None, + decoder_attention_mask: Optional[torch.BoolTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + decoder_head_mask: Optional[torch.FloatTensor] = None, + cross_attn_head_mask: Optional[torch.Tensor] = None, + encoder_outputs: Optional[Tuple[Tuple[torch.Tensor]]] = None, + past_key_values: Optional[Tuple[Tuple[torch.Tensor]]] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + decoder_inputs_embeds: Optional[torch.FloatTensor] = None, + labels: Optional[torch.LongTensor] = None, + use_cache: Optional[bool] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + output_router_logits: Optional[bool] = True, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], Seq2SeqMoEOutput]: + r""" + labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*): + Labels for computing the sequence classification/regression loss. Indices should be in `[-100, 0, ..., + config.vocab_size - 1]`. All labels set to `-100` are ignored (masked), the loss is only computed for + labels in `[0, ..., config.vocab_size]` + + Returns: + + Examples: + + ```python + >>> from transformers import AutoTokenizer, SwitchTransformersForConditionalGeneration + + >>> tokenizer = AutoTokenizer.from_pretrained("google/switch-base-8") + >>> model = SwitchTransformersForConditionalGeneration.from_pretrained("google/switch-base-8") + + >>> # training + >>> input_ids = tokenizer("The walks in park", return_tensors="pt").input_ids + >>> labels = tokenizer(" cute dog the ", return_tensors="pt").input_ids + >>> outputs = model(input_ids=input_ids, labels=labels) + >>> loss = outputs.loss + >>> logits = outputs.logits + + >>> # inference + >>> input_ids = tokenizer( + ... "summarize: studies have shown that owning a dog is good for you", return_tensors="pt" + ... ).input_ids # Batch size 1 + >>> outputs = model.generate(input_ids) + >>> # . To, let’s say you have a dog. To summarize: + >>> # Since the model has been trained on MLM, this will output gibberish + ```""" + use_cache = use_cache if use_cache is not None else self.config.use_cache + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + # FutureWarning: head_mask was separated into two input args - head_mask, decoder_head_mask + if head_mask is not None and decoder_head_mask is None: + if self.config.num_layers == self.config.num_decoder_layers: + warnings.warn(__HEAD_MASK_WARNING_MSG, FutureWarning) + decoder_head_mask = head_mask + + # Encode if needed (training, first prediction pass) + if encoder_outputs is None: + # Convert encoder inputs in embeddings if needed + encoder_outputs = self.encoder( + input_ids=input_ids, + attention_mask=attention_mask, + inputs_embeds=inputs_embeds, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + output_router_logits=output_router_logits, + return_dict=return_dict, + ) + elif return_dict and not isinstance(encoder_outputs, MoEModelOutput): + encoder_outputs = MoEModelOutput( + last_hidden_state=encoder_outputs[0], + hidden_states=encoder_outputs[1] if len(encoder_outputs) > 1 else None, + attentions=encoder_outputs[2] if len(encoder_outputs) > 2 else None, + router_probs=encoder_outputs[3] if len(encoder_outputs) > 3 else None, + ) + + hidden_states = encoder_outputs[0] + + if labels is not None and decoder_input_ids is None and decoder_inputs_embeds is None: + # get decoder inputs from shifting lm labels to the right + decoder_input_ids = self._shift_right(labels) + + # Decode + decoder_outputs = self.decoder( + input_ids=decoder_input_ids, + attention_mask=decoder_attention_mask, + inputs_embeds=decoder_inputs_embeds, + past_key_values=past_key_values, + encoder_hidden_states=hidden_states, + encoder_attention_mask=attention_mask, + head_mask=decoder_head_mask, + cross_attn_head_mask=cross_attn_head_mask, + use_cache=use_cache, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + output_router_logits=output_router_logits, + return_dict=return_dict, + ) + + sequence_output = decoder_outputs[0] + + if self.config.tie_word_embeddings: + # Rescale output before projecting on vocab + # See https://github.com/tensorflow/mesh/blob/fa19d69eafc9a482aff0b59ddd96b025c0cb207d/mesh_tensorflow/transformer/transformer.py#L586 + sequence_output = sequence_output * (self.model_dim**-0.5) + + lm_logits = self.lm_head(sequence_output) + + loss = None + encoder_z_loss = None + encoder_aux_loss = None + decoder_z_loss = None + decoder_aux_loss = None + + if output_router_logits: + # Compute the router loss (z_loss + auxiliary loss) for each router in the encoder and decoder + if self.encoder.config.encoder_sparse_step > 1: + encoder_router_logits, encoder_expert_indexes = self._unpack_router_logits(encoder_outputs[-1]) + encoder_z_loss = router_z_loss_func(encoder_router_logits) + encoder_router_probs = nn.Softmax(dim=-1)(encoder_router_logits) + encoder_aux_loss = load_balancing_loss_func(encoder_router_probs, encoder_expert_indexes) + else: + encoder_z_loss = 0 + encoder_aux_loss = 0 + + if self.decoder.config.decoder_sparse_step > 1: + decoder_router_logits, decoder_expert_indexes = self._unpack_router_logits(decoder_outputs[-1]) + decoder_z_loss = router_z_loss_func(decoder_router_logits) + decoder_router_probs = nn.Softmax(dim=-1)(decoder_router_logits) + decoder_aux_loss = load_balancing_loss_func(decoder_router_probs, decoder_expert_indexes) + else: + decoder_z_loss = 0 + decoder_aux_loss = 0 + + if labels is not None: + loss_fct = CrossEntropyLoss(ignore_index=-100) + # move labels to correct device to enable PP + labels = labels.to(lm_logits.device) + loss = loss_fct(lm_logits.view(-1, lm_logits.size(-1)), labels.view(-1)) + + if output_router_logits: + z_loss = self.router_z_loss_coef * (encoder_z_loss + decoder_z_loss) + aux_loss = self.router_aux_loss_coef * (encoder_aux_loss + decoder_aux_loss) + loss = loss + z_loss + aux_loss + + if not return_dict: + output = (lm_logits,) + if output_router_logits: + output += (encoder_z_loss, encoder_aux_loss, decoder_z_loss, decoder_aux_loss) + output += (*decoder_outputs[1:], *encoder_outputs) + + return ((loss,) + output) if loss is not None else output + + return Seq2SeqMoEOutput( + loss=loss, + logits=lm_logits, + encoder_z_loss=encoder_z_loss, + encoder_aux_loss=encoder_aux_loss, + decoder_z_loss=decoder_z_loss, + decoder_aux_loss=decoder_aux_loss, + past_key_values=decoder_outputs.past_key_values, + decoder_hidden_states=decoder_outputs.hidden_states, + decoder_attentions=decoder_outputs.attentions, + cross_attentions=decoder_outputs.cross_attentions, + decoder_router_logits=decoder_outputs.router_probs, + encoder_last_hidden_state=encoder_outputs.last_hidden_state, + encoder_hidden_states=encoder_outputs.hidden_states, + encoder_attentions=encoder_outputs.attentions, + encoder_router_logits=encoder_outputs.router_probs, + ) + + def _unpack_router_logits(self, router_outputs): + total_router_logits = [] + total_expert_indexes = [] + for router_output in router_outputs: + if len(router_output[0].shape) > 1: + router_logits, expert_indexes = router_output + total_router_logits.append(router_logits) + total_expert_indexes.append(expert_indexes) + return torch.cat(total_router_logits, dim=1), torch.cat(total_expert_indexes, dim=1) + + def prepare_inputs_for_generation( + self, + input_ids, + past_key_values=None, + attention_mask=None, + head_mask=None, + decoder_head_mask=None, + cross_attn_head_mask=None, + use_cache=None, + encoder_outputs=None, + **kwargs, + ): + # cut decoder_input_ids if past_key_values is used + if past_key_values is not None: + past_length = past_key_values[0][0].shape[2] + + # Some generation methods already pass only the last input ID + if input_ids.shape[1] > past_length: + remove_prefix_length = past_length + else: + # Default to old behavior: keep only final ID + remove_prefix_length = input_ids.shape[1] - 1 + + input_ids = input_ids[:, remove_prefix_length:] + + return { + "decoder_input_ids": input_ids, + "past_key_values": past_key_values, + "encoder_outputs": encoder_outputs, + "attention_mask": attention_mask, + "head_mask": head_mask, + "decoder_head_mask": decoder_head_mask, + "cross_attn_head_mask": cross_attn_head_mask, + "use_cache": use_cache, + } + + def prepare_decoder_input_ids_from_labels(self, labels: torch.Tensor): + return self._shift_right(labels) + + def _reorder_cache(self, past_key_values, beam_idx): + # if decoder past is not included in output + # speedy decoding is disabled and no need to reorder + if past_key_values is None: + logger.warning("You might want to consider setting `use_cache=True` to speed up decoding") + return past_key_values + + reordered_decoder_past = () + for layer_past_states in past_key_values: + # get the correct batch idx from layer past batch dim + # batch dim of `past` is at 2nd position + reordered_layer_past_states = () + for layer_past_state in layer_past_states: + # need to set correct `past` for each of the four key / value states + reordered_layer_past_states = reordered_layer_past_states + ( + layer_past_state.index_select(0, beam_idx.to(layer_past_state.device)), + ) + + if reordered_layer_past_states[0].shape != layer_past_states[0].shape: + raise ValueError( + "expected reordered_layer_past_states to have the same shape than layer_past_states, " + f"but got {reordered_layer_past_states[0].shape} and {layer_past_states[0].shape}" + ) + if len(reordered_layer_past_states) != len(layer_past_states): + raise ValueError( + "expected layer_past_states to have the same length as reordered_layer_past_states, " + f"but got {len(layer_past_states)} and {len(reordered_layer_past_states)}" + ) + + reordered_decoder_past = reordered_decoder_past + (reordered_layer_past_states,) + return reordered_decoder_past + + +@add_start_docstrings( + "The bare SWITCH_TRANSFORMERS Model transformer outputting encoder's raw hidden-states without any specific head" + " on top.", + SWITCH_TRANSFORMERS_START_DOCSTRING, +) +class SwitchTransformersEncoderModel(SwitchTransformersPreTrainedModel): + _tied_weights_keys = ["encoder.embed_tokens.weight"] + + def __init__(self, config: SwitchTransformersConfig): + super().__init__(config) + self.shared = nn.Embedding(config.vocab_size, config.d_model) + + encoder_config = copy.deepcopy(config) + encoder_config.use_cache = False + encoder_config.is_encoder_decoder = False + self.encoder = SwitchTransformersStack(encoder_config, self.shared) + + # Initialize weights and apply final processing + self.post_init() + + # Model parallel + self.device_map = None + + def get_input_embeddings(self): + return self.shared + + def set_input_embeddings(self, new_embeddings): + self.shared = new_embeddings + self.encoder.set_input_embeddings(new_embeddings) + + def _tie_weights(self): + if self.config.tie_word_embeddings: + self._tie_or_clone_weights(self.encoder.embed_tokens, self.shared) + + def get_encoder(self): + return self.encoder + + def _prune_heads(self, heads_to_prune): + """ + Prunes heads of the model. heads_to_prune: dict of {layer_num: list of heads to prune in this layer} See base + class PreTrainedModel + """ + for layer, heads in heads_to_prune.items(): + self.encoder.block[layer].layer[0].SelfAttention.prune_heads(heads) + + @add_start_docstrings_to_model_forward(SWITCH_TRANSFORMERS_ENCODER_INPUTS_DOCSTRING) + @replace_return_docstrings(output_type=MoEModelOutput, config_class=_CONFIG_FOR_DOC) + def forward( + self, + input_ids: Optional[torch.LongTensor] = None, + attention_mask: Optional[torch.FloatTensor] = None, + head_mask: Optional[torch.FloatTensor] = None, + inputs_embeds: Optional[torch.FloatTensor] = None, + output_attentions: Optional[bool] = None, + output_hidden_states: Optional[bool] = None, + output_router_logits: Optional[bool] = True, + return_dict: Optional[bool] = None, + ) -> Union[Tuple[torch.FloatTensor], MoEModelOutput]: + r""" + Returns: + + Example: + + ```python + >>> from transformers import AutoTokenizer, SwitchTransformersEncoderModel + + >>> tokenizer = AutoTokenizer.from_pretrained("google/switch-base-8") + >>> model = SwitchTransformersEncoderModel.from_pretrained("google/switch-base-8") + >>> input_ids = tokenizer( + ... "Studies have been shown that owning a dog is good for you", return_tensors="pt" + ... ).input_ids # Batch size 1 + >>> outputs = model(input_ids=input_ids) + >>> last_hidden_states = outputs.last_hidden_state + ```""" + return_dict = return_dict if return_dict is not None else self.config.use_return_dict + + encoder_outputs = self.encoder( + input_ids=input_ids, + attention_mask=attention_mask, + inputs_embeds=inputs_embeds, + head_mask=head_mask, + output_attentions=output_attentions, + output_hidden_states=output_hidden_states, + output_router_logits=output_router_logits, + return_dict=return_dict, + ) + + return encoder_outputs diff --git a/venv/lib/python3.10/site-packages/transformers/models/whisper/__pycache__/configuration_whisper.cpython-310.pyc b/venv/lib/python3.10/site-packages/transformers/models/whisper/__pycache__/configuration_whisper.cpython-310.pyc new file mode 100644 index 0000000000000000000000000000000000000000..55e05e5060e985b850db17f1d8e5a062fab5e868 Binary 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