permute/unpermute kernel for moe optimization

[CalebDu]

moe_permute kernel expands and oreders token in activation to gather uncontinuous tokens for each expert. And then call grouped-gemm for moe speedup.
moe_unpermute kernel reduces expanded grouped-gemm output and scales with topk_weight.

This implementation refers to moe kernel in tensorrt-llm in archive https://github.com/BBuf/tensorrt-llm-moe/tree/master.
Currently, unsupport Expert-Parallelism with expert_map, will follow up with updates.

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[gzy19990617]

请问这个算子是为后面做group_gemm做准备工作嘛

[CalebDu]

请问这个算子是为后面做group_gemm做准备工作嘛

yes

[gzy19990617]

请问预计什么时候会支持呐

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---- Replied Message ---- | From | ***@***.***> | | Date | 03/12/2025 16:54 | | To | vllm-project/vllm ***@***.***> | | Cc | gaoziyuan ***@***.***>, Comment ***@***.***> | | Subject | Re: [vllm-project/vllm] permute/unpermute kernel for moe optimization (PR #14568) | 请问这个算子是为后面做group_gemm做准备工作嘛 yes — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***> CalebDu left a comment (vllm-project/vllm#14568) 请问这个算子是为后面做group_gemm做准备工作嘛 yes — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: ***@***.***>