[Misc] improve example script output (vllm-project#15528)

Signed-off-by: reidliu41 <reid201711@gmail.com>
Co-authored-by: reidliu41 <reid201711@gmail.com>

Author: reidliu41

examples/offline_inference/basic/basic.py

@@ -18,7 +18,10 @@
 # that contain the prompt, generated text, and other information.
 outputs = llm.generate(prompts, sampling_params)
 # Print the outputs.
+print("\nGenerated Outputs:\n" + "-" * 60)
 for output in outputs:
     prompt = output.prompt
     generated_text = output.outputs[0].text
-    print(f"Prompt: {prompt!r}, Generated text: {generated_text!r}")
+    print(f"Prompt:    {prompt!r}")
+    print(f"Output:    {generated_text!r}")
+    print("-" * 60)

examples/offline_inference/basic/chat.py

@@ -27,12 +27,13 @@ def main(args: dict):
         sampling_params.top_k = top_k
 
     def print_outputs(outputs):
+        print("\nGenerated Outputs:\n" + "-" * 80)
         for output in outputs:
             prompt = output.prompt
             generated_text = output.outputs[0].text
-            print(f"Prompt: {prompt!r}")
+            print(f"Prompt: {prompt!r}\n")
             print(f"Generated text: {generated_text!r}")
-        print("-" * 80)
+            print("-" * 80)
 
     print("=" * 80)
 

examples/offline_inference/basic/classify.py

@@ -23,12 +23,14 @@ def main(args: Namespace):
     outputs = model.classify(prompts)
 
     # Print the outputs.
+    print("\nGenerated Outputs:\n" + "-" * 60)
     for prompt, output in zip(prompts, outputs):
         probs = output.outputs.probs
         probs_trimmed = ((str(probs[:16])[:-1] +
                           ", ...]") if len(probs) > 16 else probs)
-        print(f"Prompt: {prompt!r} | "
+        print(f"Prompt: {prompt!r} \n"
               f"Class Probabilities: {probs_trimmed} (size={len(probs)})")
+        print("-" * 60)
 
 
 if __name__ == "__main__":

examples/offline_inference/basic/embed.py

@@ -23,12 +23,14 @@ def main(args: Namespace):
     outputs = model.embed(prompts)
 
     # Print the outputs.
+    print("\nGenerated Outputs:\n" + "-" * 60)
     for prompt, output in zip(prompts, outputs):
         embeds = output.outputs.embedding
         embeds_trimmed = ((str(embeds[:16])[:-1] +
                            ", ...]") if len(embeds) > 16 else embeds)
-        print(f"Prompt: {prompt!r} | "
+        print(f"Prompt: {prompt!r} \n"
               f"Embeddings: {embeds_trimmed} (size={len(embeds)})")
+        print("-" * 60)
 
 
 if __name__ == "__main__":

examples/offline_inference/basic/score.py

@@ -22,9 +22,11 @@ def main(args: Namespace):
     outputs = model.score(text_1, texts_2)
 
     # Print the outputs.
+    print("\nGenerated Outputs:\n" + "-" * 60)
     for text_2, output in zip(texts_2, outputs):
         score = output.outputs.score
-        print(f"Pair: {[text_1, text_2]!r} | Score: {score}")
+        print(f"Pair: {[text_1, text_2]!r} \nScore: {score}")
+        print("-" * 60)
 
 
 if __name__ == "__main__":