vllm/csrc/moe/moe_ops.h

#pragma once

#include <torch/all.h>

void topk_softmax(torch::Tensor& topk_weights, torch::Tensor& topk_indices,
                  torch::Tensor& token_expert_indices,
                  torch::Tensor& gating_output);

void moe_sum(torch::Tensor& input, torch::Tensor& output);

void moe_align_block_size(torch::Tensor topk_ids, int64_t num_experts,
                          int64_t block_size, torch::Tensor sorted_token_ids,
                          torch::Tensor experts_ids,
                          torch::Tensor num_tokens_post_pad);

void sgl_moe_align_block_size(torch::Tensor topk_ids, int64_t num_experts,
                              int64_t block_size,
                              torch::Tensor sorted_token_ids,
                              torch::Tensor experts_ids,
                              torch::Tensor num_tokens_post_pad);

torch::Tensor moe_wna16_gemm(torch::Tensor input, torch::Tensor output,
                             torch::Tensor b_qweight, torch::Tensor b_scales,
                             std::optional<torch::Tensor> b_qzeros,
                             std::optional<torch::Tensor> topk_weights,
                             torch::Tensor sorted_token_ids,
                             torch::Tensor expert_ids,
                             torch::Tensor num_tokens_post_pad, int64_t top_k,
                             int64_t BLOCK_SIZE_M, int64_t BLOCK_SIZE_N,
                             int64_t BLOCK_SIZE_K, int64_t bit);