vllm/csrc/cache.h

34 lines
1.4 KiB
C++

#pragma once
#include <torch/all.h>
#include <map>
#include <vector>
void swap_blocks(torch::Tensor& src, torch::Tensor& dst,
const torch::Tensor& block_mapping);
// Note: the key_caches and value_caches vectors are constant but
// not the Tensors they contain. The vectors need to be const refs
// in order to satisfy pytorch's C++ operator registration code.
void copy_blocks(std::vector<torch::Tensor> const& key_caches,
std::vector<torch::Tensor> const& value_caches,
const torch::Tensor& block_mapping);
void reshape_and_cache(torch::Tensor& key, torch::Tensor& value,
torch::Tensor& key_cache, torch::Tensor& value_cache,
torch::Tensor& slot_mapping,
const std::string& kv_cache_dtype, const double k_scale,
const double v_scale);
void reshape_and_cache_flash(torch::Tensor& key, torch::Tensor& value,
torch::Tensor& key_cache,
torch::Tensor& value_cache,
torch::Tensor& slot_mapping,
const std::string& kv_cache_dtype,
const double k_scale, const double v_scale);
// Just for unittest
void convert_fp8(torch::Tensor& dst_cache, torch::Tensor& src_cache,
const double scale, const std::string& kv_cache_dtype);