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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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Setting OMP_NUM_THREADS environment variable for each process to be 1 in default, to avoid your system being overloaded, please further tune the variable for optimal performance in your application as needed. 
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using world size: 64, data-parallel-size: 1, tensor-model-parallel size: 4, pipeline-model-parallel size: 16 
using torch.float16 for parameters ...
------------------------ arguments ------------------------
  accumulate_allreduce_grads_in_fp32 .............. False
  adam_beta1 ...................................... 0.9
  adam_beta2 ...................................... 0.999
  adam_eps ........................................ 1e-08
  adlr_autoresume ................................. False
  adlr_autoresume_interval ........................ 1000
  apply_query_key_layer_scaling ................... True
  apply_residual_connection_post_layernorm ........ False
  attention_dropout ............................... 0.1
  attention_softmax_in_fp32 ....................... False
  bert_binary_head ................................ True
  bert_load ....................................... None
  bf16 ............................................ False
  bias_dropout_fusion ............................. True
  bias_gelu_fusion ................................ True
  biencoder_projection_dim ........................ 0
  biencoder_shared_query_context_model ............ False
  block_data_path ................................. None
  checkpoint_activations .......................... True
  checkpoint_num_layers ........................... 1
  clip_grad ....................................... 1.0
  consumed_train_samples .......................... 0
  consumed_valid_samples .......................... 0
  data_impl ....................................... mmap
  data_parallel_size .............................. 1
  data_path ....................................... ['/gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document']
  dataloader_type ................................. single
  DDP_impl ........................................ local
  decoder_seq_length .............................. None
  distribute_checkpointed_activations ............. False
  distributed_backend ............................. nccl
  embedding_path .................................. None
  encoder_seq_length .............................. 1024
  eod_mask_loss ................................... False
  eval_interval ................................... 100
  eval_iters ...................................... 10
  evidence_data_path .............................. None
  exit_duration_in_mins ........................... None
  exit_interval ................................... None
  ffn_hidden_size ................................. 32768
  finetune ........................................ False
  fp16 ............................................ True
  fp16_lm_cross_entropy ........................... False
  fp32_residual_connection ........................ False
  global_batch_size ............................... 1024
  hidden_dropout .................................. 0.1
  hidden_size ..................................... 8192
  hysteresis ...................................... 2
  ict_head_size ................................... None
  ict_load ........................................ None
  img_dim ......................................... 224
  indexer_batch_size .............................. 128
  indexer_log_interval ............................ 1000
  init_method_std ................................. 0.02
  init_method_xavier_uniform ...................... False
  initial_loss_scale .............................. 4294967296
  kv_channels ..................................... 256
  layernorm_epsilon ............................... 1e-05
  lazy_mpu_init ................................... None
  load ............................................ /gpfsscratch/rech/eha/commun/checkpoints/gpt2-1-node
  local_rank ...................................... 0
  log_batch_size_to_tensorboard ................... False
  log_interval .................................... 1
  log_learning_rate_to_tensorboard ................ True
  log_loss_scale_to_tensorboard ................... True
  log_num_zeros_in_grad ........................... False
  log_params_norm ................................. False
  log_timers_to_tensorboard ....................... False
  log_validation_ppl_to_tensorboard ............... False
  loss_scale ...................................... None
  loss_scale_window ............................... 1000
  lr .............................................. 0.00015
  lr_decay_iters .................................. 800
  lr_decay_samples ................................ None
  lr_decay_style .................................. cosine
  lr_warmup_fraction .............................. 0.01
  lr_warmup_iters ................................. 0
  lr_warmup_samples ............................... 0
  make_vocab_size_divisible_by .................... 128
  mask_prob ....................................... 0.15
  masked_softmax_fusion ........................... True
  max_position_embeddings ......................... 1024
  merge_file ...................................... /gpfsscratch/rech/eha/commun/models-custom/megatron-gpt2/megatron_lm_345m_v0.0/release/gpt2-merges.txt
  micro_batch_size ................................ 4
  min_loss_scale .................................. 1.0
  min_lr .......................................... 1e-05
  mmap_warmup ..................................... False
  no_load_optim ................................... None
  no_load_rng ..................................... None
  no_save_optim ................................... None
  no_save_rng ..................................... None
  num_attention_heads ............................. 32
  num_channels .................................... 3
  num_classes ..................................... 1000
  num_layers ...................................... 64
  num_layers_per_virtual_pipeline_stage ........... None
  num_workers ..................................... 2
  onnx_safe ....................................... None
  openai_gelu ..................................... False
  optimizer ....................................... adam
  override_lr_scheduler ........................... False
  params_dtype .................................... torch.float16
  patch_dim ....................................... 16
  pipeline_model_parallel_size .................... 16
  query_in_block_prob ............................. 0.1
  rampup_batch_size ............................... None
  rank ............................................ 0
  reset_attention_mask ............................ False
  reset_position_ids .............................. False
  retriever_report_topk_accuracies ................ []
  retriever_score_scaling ......................... False
  retriever_seq_length ............................ 256
  sample_rate ..................................... 1.0
  save ............................................ /gpfsscratch/rech/eha/commun/checkpoints/gpt2-1-node
  save_interval ................................... 500
  scatter_gather_tensors_in_pipeline .............. True
  seed ............................................ 1234
  seq_length ...................................... 1024
  sgd_momentum .................................... 0.9
  short_seq_prob .................................. 0.1
  split ........................................... 949,50,1
  tensor_model_parallel_size ...................... 4
  tensorboard_dir ................................. None
  tensorboard_log_interval ........................ 1
  tensorboard_queue_size .......................... 1000
  titles_data_path ................................ None
  tokenizer_type .................................. GPT2BPETokenizer
  train_iters ..................................... 1000
  train_samples ................................... None
  use_checkpoint_lr_scheduler ..................... False
  use_contiguous_buffers_in_ddp ................... False
  use_cpu_initialization .......................... None
  use_one_sent_docs ............................... False
  virtual_pipeline_model_parallel_size ............ None
  vocab_extra_ids ................................. 0
  vocab_file ...................................... /gpfsscratch/rech/eha/commun/models-custom/megatron-gpt2/megatron_lm_345m_v0.0/release/gpt2-vocab.json
  weight_decay .................................... 0.01
  world_size ...................................... 64
-------------------- end of arguments ---------------------
setting number of micro-batches to constant 256
> building GPT2BPETokenizer tokenizer ...
 > padded vocab (size: 50257) with 431 dummy tokens (new size: 50688)
> initializing torch distributed ...
> initializing tensor model parallel with size 4
> initializing pipeline model parallel with size 16
> setting random seeds to 1234 ...
> initializing model parallel cuda seeds on global rank 0, model parallel rank 0, and data parallel rank 0 with model parallel seed: 3952 and data parallel seed: 1234
> compiling dataset index builder ...
make: Entering directory '/gpfsdswork/projects/rech/eha/commun/code/megatron-lm/megatron/data'
make: Nothing to be done for 'default'.
make: Leaving directory '/gpfsdswork/projects/rech/eha/commun/code/megatron-lm/megatron/data'
>>> done with dataset index builder. Compilation time: 0.109 seconds
> compiling and loading fused kernels ...
Detected CUDA files, patching ldflags
Emitting ninja build file /gpfsdswork/projects/rech/eha/commun/code/megatron-lm/megatron/fused_kernels/build/build.ninja...
Building extension module scaled_upper_triang_masked_softmax_cuda...
Allowing ninja to set a default number of workers... (overridable by setting the environment variable MAX_JOBS=N)
ninja: no work to do.
Loading extension module scaled_upper_triang_masked_softmax_cuda...
Detected CUDA files, patching ldflags
Emitting ninja build file /gpfsdswork/projects/rech/eha/commun/code/megatron-lm/megatron/fused_kernels/build/build.ninja...
Building extension module scaled_masked_softmax_cuda...
Allowing ninja to set a default number of workers... (overridable by setting the environment variable MAX_JOBS=N)
ninja: no work to do.
Loading extension module scaled_masked_softmax_cuda...
Detected CUDA files, patching ldflags
Emitting ninja build file /gpfsdswork/projects/rech/eha/commun/code/megatron-lm/megatron/fused_kernels/build/build.ninja...
Building extension module fused_mix_prec_layer_norm_cuda...
Allowing ninja to set a default number of workers... (overridable by setting the environment variable MAX_JOBS=N)
ninja: no work to do.
Loading extension module fused_mix_prec_layer_norm_cuda...
>>> done with compiling and loading fused kernels. Compilation time: 12.395 seconds
time to initialize megatron (seconds): -27.152
[after megatron is initialized] datetime: 2021-05-26 03:20:36 
building GPT model ...
 > number of parameters on (tensor, pipeline) model parallel rank (2, 1): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 13): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 2): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 11): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 6): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 1): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 2): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 13): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 6): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 6): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 14): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 10): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 14): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 7): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 5): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 5): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 7): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 4): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 5): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 4): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 4): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 1): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 13): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 13): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 1): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 2): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 2): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 6): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 5): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 12): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 3): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 12): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 3): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 10): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 10): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 4): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 7): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 14): 805560320 > number of parameters on (tensor, pipeline) model parallel rank (3, 14): 805560320

 > number of parameters on (tensor, pipeline) model parallel rank (2, 10): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 7): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 11): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 11): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 11): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 3): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 9): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 3): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 12): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 12): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 9): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 9): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 8): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 8): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (1, 8): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (0, 8): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (2, 9): 805560320
 > number of parameters on (tensor, pipeline) model parallel rank (3, 15): 909385728
 > number of parameters on (tensor, pipeline) model parallel rank (3, 0): 917757952
 > number of parameters on (tensor, pipeline) model parallel rank (1, 15): 909385728
 > number of parameters on (tensor, pipeline) model parallel rank (0, 15): 909385728
 > number of parameters on (tensor, pipeline) model parallel rank (1, 0): 917757952
 > number of parameters on (tensor, pipeline) model parallel rank (0, 0): 917757952
 > number of parameters on (tensor, pipeline) model parallel rank (2, 0): 917757952
 > number of parameters on (tensor, pipeline) model parallel rank (2, 15): 909385728
> learning rate decay style: cosine
WARNING: could not find the metadata file /gpfsscratch/rech/eha/commun/checkpoints/gpt2-1-node/latest_checkpointed_iteration.txt 
    will not load any checkpoints and will start from random
time (ms) | load-checkpoint: 0.47
[after model, optimizer, and learning rate scheduler are built] datetime: 2021-05-26 03:20:37 
> building train, validation, and test datasets ...
 > datasets target sizes (minimum size):
    train:      1024000
    validation: 112640
    test:       10240
> building train, validation, and test datasets for GPT ...
 > building dataset index ...
    reading sizes...
    reading pointers...
    reading document index...
    creating numpy buffer of mmap...
    creating memory view of numpy buffer...
 > finished creating indexed dataset in 0.001563 seconds
    number of documents: 10000
 > dataset split:
    train:
     document indices in [0, 9490) total of 9490 documents
    validation:
     document indices in [9490, 9990) total of 500 documents
    test:
     document indices in [9990, 10000) total of 10 documents
 > loading doc-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_train_indexmap_1024000ns_1024sl_1234s_doc_idx.npy
 > loading sample-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_train_indexmap_1024000ns_1024sl_1234s_sample_idx.npy
 > loading shuffle-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_train_indexmap_1024000ns_1024sl_1234s_shuffle_idx.npy
    loaded indexed file in 0.013 seconds
    total number of samples: 1024856
    total number of epochs: 99
 > loading doc-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_valid_indexmap_112640ns_1024sl_1234s_doc_idx.npy
 > loading sample-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_valid_indexmap_112640ns_1024sl_1234s_sample_idx.npy
 > loading shuffle-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_valid_indexmap_112640ns_1024sl_1234s_shuffle_idx.npy
    loaded indexed file in 0.002 seconds
    total number of samples: 113200
    total number of epochs: 182
 > loading doc-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_test_indexmap_10240ns_1024sl_1234s_doc_idx.npy
 > loading sample-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_test_indexmap_10240ns_1024sl_1234s_sample_idx.npy
 > loading shuffle-idx mapping from /gpfsscratch/rech/eha/commun/datasets-custom/openwebtext-10k/meg-gpt2_text_document_test_indexmap_10240ns_1024sl_1234s_shuffle_idx.npy
    loaded indexed file in 0.001 seconds
    total number of samples: 10255
    total number of epochs: 672
> finished creating GPT datasets ...
[after dataloaders are built] datetime: 2021-05-26 03:20:38 
done with setup ...
training ...
time (ms) | model-and-optimizer-setup: 336.31 | train/valid/test-data-iterators-setup: 494.63
[before the start of training step] datetime: 2021-05-26 03:20:38 
 iteration        1/    1000 | consumed samples:         1024 | elapsed time per iteration (ms): 155483.8 | learning rate: 0.000E+00 | global batch size:  1024 | loss scale: 4294967296.0 | number of skipped iterations:   1 | number of nan iterations:   0 |
time (ms) | forward-compute: 32054.16 | forward-recv: 19581.85 | backward-compute: 87380.53 | backward-send: 2.90 | backward-send-forward-recv: 11878.08 | backward-params-all-reduce: 26.06 | backward-embedding-all-reduce: 4181.82 | optimizer-copy-to-main-grad: 8.18 | optimizer-unscale-and-check-inf: 333.72 | optimizer: 342.01 | batch-generator: 182.63
 iteration        2/    1000 | consumed samples:         2048 | elapsed time per iteration (ms): 129028.8 | learning rate: 0.000E+00 | global batch size:  1024 | loss scale: 2147483648.0 | number of skipped iterations:   1 | number of nan iterations:   0 |
time (ms) | forward-compute: 31749.74 | forward-recv: 1493.80 | backward-compute: 88911.73 | backward-send: 2.63 | backward-send-forward-recv: 2267.37 | backward-params-all-reduce: 26.04 | backward-embedding-all-reduce: 4492.62 | optimizer-copy-to-main-grad: 8.16 | optimizer-unscale-and-check-inf: 42.71 | optimizer: 51.07 | batch-generator: 184.46
 iteration        3/    1000 | consumed samples:         3072 | elapsed time per iteration (ms): 128891.5 | learning rate: 0.000E+00 | global batch size:  1024 | loss scale: 1073741824.0 | number of skipped iterations:   1 | number of nan iterations:   0 |
time (ms) | forward-compute: 31888.01 | forward-recv: 1498.23 | backward-compute: 89444.82 | backward-send: 2.80 | backward-send-forward-recv: 1766.94 | backward-params-all-reduce: 26.45 | backward-embedding-all-reduce: 4179.82 | optimizer-copy-to-main-grad: 8.17 | optimizer-unscale-and-check-inf: 42.35 | optimizer: 50.66 | batch-generator: 187.52