Distributed LLM Generation#

Source NVIDIA/TensorRT-LLM.

 1### Distributed LLM Generation
 2from tensorrt_llm import SamplingParams
 3from tensorrt_llm._tensorrt_engine import LLM
 4
 5
 6def main():
 7    # model could accept HF model name or a path to local HF model.
 8    llm = LLM(
 9        model="TinyLlama/TinyLlama-1.1B-Chat-v1.0",
10        # Enable 2-way tensor parallelism
11        tensor_parallel_size=2
12        # Enable 2-way pipeline parallelism if needed
13        # pipeline_parallel_size=2
14        # Enable 2-way expert parallelism for MoE model's expert weights
15        # moe_expert_parallel_size=2
16        # Enable 2-way tensor parallelism for MoE model's expert weights
17        # moe_tensor_parallel_size=2
18    )
19
20    # Sample prompts.
21    prompts = [
22        "Hello, my name is",
23        "The president of the United States is",
24        "The capital of France is",
25        "The future of AI is",
26    ]
27
28    # Create a sampling params.
29    sampling_params = SamplingParams(temperature=0.8, top_p=0.95)
30
31    for output in llm.generate(prompts, sampling_params):
32        print(
33            f"Prompt: {output.prompt!r}, Generated text: {output.outputs[0].text!r}"
34        )
35
36    # Got output like
37    # Prompt: 'Hello, my name is', Generated text: '\n\nJane Smith. I am a student pursuing my degree in Computer Science at [university]. I enjoy learning new things, especially technology and programming'
38    # Prompt: 'The president of the United States is', Generated text: 'likely to nominate a new Supreme Court justice to fill the seat vacated by the death of Antonin Scalia. The Senate should vote to confirm the'
39    # Prompt: 'The capital of France is', Generated text: 'Paris.'
40    # Prompt: 'The future of AI is', Generated text: 'an exciting time for us. We are constantly researching, developing, and improving our platform to create the most advanced and efficient model available. We are'
41
42
43# The entry point of the program need to be protected for spawning processes.
44if __name__ == '__main__':
45    main()