Create app.py

app.py

@@ -0,0 +1,82 @@
+import onnxruntime_genai as og
+import argparse
+import time
+
+def main(args):
+    if args.verbose: print("Loading model...")
+    if args.timings:
+        started_timestamp = 0
+        first_token_timestamp = 0
+
+    model = og.Model(f'{args.model}')
+    if args.verbose: print("Model loaded")
+    tokenizer = og.Tokenizer(model)
+    tokenizer_stream = tokenizer.create_stream()
+    if args.verbose: print("Tokenizer created")
+    if args.verbose: print()
+    search_options = {name:getattr(args, name) for name in ['do_sample', 'max_length', 'min_length', 'top_p', 'top_k', 'temperature', 'repetition_penalty'] if name in args}
+
+    # Keep asking for input prompts in a loop
+    while True:
+        text = input("Input: ")
+        if not text:
+            print("Error, input cannot be empty")
+            continue
+
+        if args.timings: started_timestamp = time.time()
+
+        input_tokens = tokenizer.encode(args.system_prompt + text)
+
+        params = og.GeneratorParams(model)
+        params.try_use_cuda_graph_with_max_batch_size(1)
+        params.set_search_options(**search_options)
+        params.input_ids = input_tokens
+        generator = og.Generator(model, params)
+        if args.verbose: print("Generator created")
+
+        if args.verbose: print("Running generation loop ...")
+        if args.timings:
+            first = True
+            new_tokens = []
+
+        print()
+        print("Output: ", end='', flush=True)
+
+        try:
+            while not generator.is_done():
+                generator.compute_logits()
+                generator.generate_next_token()
+                if args.timings:
+                    if first:
+                        first_token_timestamp = time.time()
+                        first = False
+
+                new_token = generator.get_next_tokens()[0]
+                print(tokenizer_stream.decode(new_token), end='', flush=True)
+                if args.timings: new_tokens.append(new_token)
+        except KeyboardInterrupt:
+            print("  --control+c pressed, aborting generation--")
+        print()
+        print()
+
+        if args.timings:
+            prompt_time = first_token_timestamp - started_timestamp
+            run_time = time.time() - first_token_timestamp
+            print(f"Prompt length: {len(input_tokens)}, New tokens: {len(new_tokens)}, Time to first: {(prompt_time):.2f}s, Prompt tokens per second: {len(input_tokens)/prompt_time:.2f} tps, New tokens per second: {len(new_tokens)/run_time:.2f} tps")
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(argument_default=argparse.SUPPRESS, description="End-to-end AI Question/Answer example for gen-ai")
+    parser.add_argument('-m', '--model', type=str, required=True, help='Onnx model folder path (must contain config.json and model.onnx)')
+    parser.add_argument('-i', '--min_length', type=int, help='Min number of tokens to generate including the prompt')
+    parser.add_argument('-l', '--max_length', type=int, help='Max number of tokens to generate including the prompt')
+    parser.add_argument('-ds', '--do_random_sampling', action='store_true', help='Do random sampling. When false, greedy or beam search are used to generate the output. Defaults to false')
+    parser.add_argument('-p', '--top_p', type=float, help='Top p probability to sample with')
+    parser.add_argument('-k', '--top_k', type=int, help='Top k tokens to sample from')
+    parser.add_argument('-t', '--temperature', type=float, help='Temperature to sample with')
+    parser.add_argument('-r', '--repetition_penalty', type=float, help='Repetition penalty to sample with')
+    parser.add_argument('-v', '--verbose', action='store_true', default=False, help='Print verbose output and timing information. Defaults to false')
+    parser.add_argument('-s', '--system_prompt', type=str, default='', help='Prepend a system prompt to the user input prompt. Defaults to empty')
+    parser.add_argument('-g', '--timings', action='store_true', default=False, help='Print timing information for each generation step. Defaults to false')
+    args = parser.parse_args()
+    main(args)