78 lines
3.6 KiB
C++
78 lines
3.6 KiB
C++
#pragma once
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#include <torch/all.h>
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void topk_softmax(torch::Tensor& topk_weights, torch::Tensor& topk_indices,
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torch::Tensor& token_expert_indices,
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torch::Tensor& gating_output, bool renormalize,
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std::optional<torch::Tensor> bias);
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void topk_sigmoid(torch::Tensor& topk_weights, torch::Tensor& topk_indices,
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torch::Tensor& token_expert_indices,
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torch::Tensor& gating_output, bool renormalize,
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std::optional<torch::Tensor> bias);
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void moe_sum(torch::Tensor& input, torch::Tensor& output);
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void moe_align_block_size(torch::Tensor topk_ids, int64_t num_experts,
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int64_t block_size, torch::Tensor sorted_token_ids,
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torch::Tensor experts_ids,
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torch::Tensor num_tokens_post_pad,
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std::optional<torch::Tensor> maybe_expert_map);
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void batched_moe_align_block_size(int64_t max_tokens_per_batch,
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int64_t block_size,
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torch::Tensor const& expert_num_tokens,
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torch::Tensor sorted_ids,
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torch::Tensor expert_ids,
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torch::Tensor num_tokens_post_pad);
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void moe_lora_align_block_size(
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torch::Tensor topk_ids, torch::Tensor token_lora_mapping,
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int64_t num_experts, int64_t block_size, int64_t max_loras,
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int64_t max_num_tokens_padded, int64_t max_num_m_blocks,
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torch::Tensor sorted_token_ids, torch::Tensor expert_ids,
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torch::Tensor num_tokens_post_pad, torch::Tensor adapter_enabled,
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torch::Tensor lora_ids, std::optional<torch::Tensor> maybe_expert_map);
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#ifndef USE_ROCM
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torch::Tensor moe_wna16_gemm(torch::Tensor input, torch::Tensor output,
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torch::Tensor b_qweight, torch::Tensor b_scales,
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std::optional<torch::Tensor> b_qzeros,
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std::optional<torch::Tensor> topk_weights,
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torch::Tensor sorted_token_ids,
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torch::Tensor expert_ids,
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torch::Tensor num_tokens_post_pad, int64_t top_k,
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int64_t BLOCK_SIZE_M, int64_t BLOCK_SIZE_N,
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int64_t BLOCK_SIZE_K, int64_t bit);
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std::tuple<torch::Tensor, torch::Tensor> grouped_topk(
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torch::Tensor const& scores, int64_t n_group, int64_t topk_group,
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int64_t topk, bool renormalize, double routed_scaling_factor,
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torch::Tensor const& bias, int64_t scoring_func);
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#endif
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bool moe_permute_unpermute_supported();
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void shuffle_rows(const torch::Tensor& input_tensor,
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const torch::Tensor& dst2src_map,
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torch::Tensor& output_tensor);
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#ifndef USE_ROCM
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// cuBLAS bf16 x bf16 -> fp32 router GEMM (fallback for non-SM90 / batch > 16)
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torch::Tensor router_gemm_bf16_fp32(torch::Tensor const& input,
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torch::Tensor const& weight);
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// DeepSeek V3 optimized router GEMM kernel for SM90+
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// Computes output = mat_a @ mat_b.T where:
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// mat_a: [num_tokens, hidden_dim] in bf16
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// mat_b: [num_experts, hidden_dim] in bf16
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// output: [num_tokens, num_experts] in bf16 or fp32
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// Supports num_tokens in [1, 16], num_experts in {256, 384}, hidden_dim = 7168
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void dsv3_router_gemm(torch::Tensor& output, const torch::Tensor& mat_a,
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const torch::Tensor& mat_b);
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// gpt-oss optimized router GEMM kernel for SM90+
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void gpt_oss_router_gemm(torch::Tensor& output, torch::Tensor input,
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torch::Tensor weight, torch::Tensor bias);
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#endif
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