Add Qwen2 MoE support #603
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Blocked by #598
Add Qwen2 MoE support to SGLang. Implementation is adopted from the current vLLM implementation.
I've tested this patch on my local environment with 8 * A800, and everything works gracefully.
The configurations I've tested so far are
CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 python -m sglang.launch_server --model-path ~/Qwen2-57B-A14B-Instruct/ --port 30000 --mem-fraction-static 0.9 --tp-size 8CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 python -m sglang.launch_server --model-path ~/Qwen2-57B-A14B-Instruct/ --port 30000 --mem-fraction-static 0.9 --tp-size 4 --dp-size 2CUDA_VISIBLE_DEVICES=0,1,2,3,4,5,6,7 python -m sglang.launch_server --model-path ~/Qwen2-57B-A14B-Instruct/ --port 30000 --mem-fraction-static 0.9 --tp-size 2 --dp-size 4