环境:2* A100 40G

模型:qwen2-7B

服务:Flask + gunicorn

单卡推理, gpu_memory_utilization=0.5, 单卡推理耗时5s:

llm = LLM(model='/root/autodl-tmp/model/qwen/Qwen2-7B-Instruct', tokenizer_mode="auto", dtype=torch.bfloat16, gpu_memory_utilization=0.7, enforce_eager=True)

单卡占用内存情况

多卡推理,设置tensor_parallel_size=2,

llm = LLM(model='/root/autodl-tmp/model/qwen/Qwen2-7B-Instruct', tokenizer_mode="auto", dtype=torch.bfloat16, gpu_memory_utilization=0.7, enforce_eager=True, tensor_parallel_size=2)

多卡占用内存

多卡推理结果, 推理耗时11s

为什么多卡推理耗时更长了😵‍💫

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