vllm/csrc/moe/torch_bindings.cpp

88 lines
3.7 KiB
C++

#include "core/registration.h"
#include "moe_ops.h"
TORCH_LIBRARY_EXPAND(TORCH_EXTENSION_NAME, m) {
// Apply topk softmax to the gating outputs.
m.def(
"topk_softmax(Tensor! topk_weights, Tensor! topk_indices, Tensor! "
"token_expert_indices, Tensor gating_output) -> ()");
m.impl("topk_softmax", torch::kCUDA, &topk_softmax);
// Calculate the result of moe by summing up the partial results
// from all selected experts.
m.def("moe_sum(Tensor input, Tensor! output) -> ()");
m.impl("moe_sum", torch::kCUDA, &moe_sum);
// Aligning the number of tokens to be processed by each expert such
// that it is divisible by the block size.
m.def(
"moe_align_block_size(Tensor topk_ids, int num_experts,"
" int block_size, Tensor! sorted_token_ids,"
" Tensor! experts_ids,"
" Tensor! num_tokens_post_pad) -> ()");
m.impl("moe_align_block_size", torch::kCUDA, &moe_align_block_size);
// temporarily adapted from
// https://github.com/sgl-project/sglang/commit/ded9fcd09a43d5e7d5bb31a2bc3e9fc21bf65d2a
m.def(
"sgl_moe_align_block_size(Tensor topk_ids, int num_experts,"
" int block_size, Tensor! sorted_token_ids,"
" Tensor! experts_ids,"
" Tensor! num_tokens_post_pad) -> ()");
m.impl("sgl_moe_align_block_size", torch::kCUDA, &sgl_moe_align_block_size);
#ifndef USE_ROCM
m.def(
"moe_wna16_gemm(Tensor input, Tensor! output, Tensor b_qweight, "
"Tensor b_scales, Tensor? b_qzeros, "
"Tensor? topk_weights, Tensor sorted_token_ids, "
"Tensor expert_ids, Tensor num_tokens_post_pad, "
"int top_k, int BLOCK_SIZE_M, int BLOCK_SIZE_N, int BLOCK_SIZE_K, "
"int bit) -> Tensor");
m.impl("moe_wna16_gemm", torch::kCUDA, &moe_wna16_gemm);
m.def(
"moe_wna16_marlin_gemm(Tensor! a, Tensor? c_or_none,"
"Tensor! b_q_weight, Tensor! b_scales, Tensor? global_scale, Tensor? "
"b_zeros_or_none,"
"Tensor? g_idx_or_none, Tensor? perm_or_none, Tensor! workspace,"
"Tensor sorted_token_ids,"
"Tensor! expert_ids, Tensor! num_tokens_past_padded,"
"Tensor! topk_weights, int moe_block_size, int top_k, "
"bool mul_topk_weights, bool is_ep, int b_q_type_id,"
"int size_m, int size_n, int size_k,"
"bool is_full_k, bool use_atomic_add,"
"bool use_fp32_reduce, bool is_zp_float) -> Tensor");
m.def(
"marlin_gemm_moe(Tensor! a, Tensor! b_q_weights, Tensor! sorted_ids, "
"Tensor! topk_weights, Tensor! topk_ids, Tensor! b_scales, Tensor! "
"b_zeros, Tensor! g_idx, Tensor! perm, Tensor! workspace, "
"int b_q_type, SymInt size_m, "
"SymInt size_n, SymInt size_k, bool is_k_full, int num_experts, int "
"topk, "
"int moe_block_size, bool replicate_input, bool apply_weights)"
" -> Tensor");
m.def(
"moe_permute(Tensor input, Tensor topk_weight, Tensor! topk_ids,"
"Tensor token_expert_indicies, Tensor? expert_map, int n_expert,"
"int n_local_expert,"
"int topk, int? align_block_size,Tensor! permuted_input, Tensor! "
"expert_first_token_offset, Tensor! src_row_id2dst_row_id_map, Tensor! "
"m_indices)->()");
m.def(
"moe_unpermute(Tensor permuted_hidden_states, Tensor topk_weights,"
"Tensor topk_ids,Tensor src_row_id2dst_row_id_map, Tensor "
"expert_first_token_offset, int n_expert, int n_local_expert,int "
"topk, Tensor! hidden_states)->()");
m.def("moe_permute_unpermute_supported() -> bool");
m.impl("moe_permute_unpermute_supported", &moe_permute_unpermute_supported);
#endif
}
REGISTER_EXTENSION(TORCH_EXTENSION_NAME)