6ae996a873
Signed-off-by: reidliu41 <reid201711@gmail.com> Co-authored-by: reidliu41 <reid201711@gmail.com>
49 lines
1.2 KiB
Python
49 lines
1.2 KiB
Python
# SPDX-License-Identifier: Apache-2.0
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import os
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import time
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from vllm import LLM, SamplingParams
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# enable torch profiler, can also be set on cmd line
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os.environ["VLLM_TORCH_PROFILER_DIR"] = "./vllm_profile"
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# Sample prompts.
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prompts = [
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"Hello, my name is",
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"The president of the United States is",
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"The capital of France is",
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"The future of AI is",
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]
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# Create a sampling params object.
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sampling_params = SamplingParams(temperature=0.8, top_p=0.95)
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def main():
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# Create an LLM.
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llm = LLM(model="facebook/opt-125m", tensor_parallel_size=1)
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llm.start_profile()
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# Generate texts from the prompts. The output is a list of RequestOutput
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# objects that contain the prompt, generated text, and other information.
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outputs = llm.generate(prompts, sampling_params)
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llm.stop_profile()
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# Print the outputs.
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print("-" * 50)
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for output in outputs:
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prompt = output.prompt
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generated_text = output.outputs[0].text
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print(f"Prompt: {prompt!r}\nGenerated text: {generated_text!r}")
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print("-" * 50)
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# Add a buffer to wait for profiler in the background process
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# (in case MP is on) to finish writing profiling output.
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time.sleep(10)
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if __name__ == "__main__":
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main()
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