48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
#include <torch/extension.h>
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#include <map>
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#include <vector>
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void swap_blocks(
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torch::Tensor& src,
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torch::Tensor& dst,
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const std::map<int64_t, int64_t>& block_mapping);
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void copy_blocks(
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std::vector<torch::Tensor>& key_caches,
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std::vector<torch::Tensor>& value_caches,
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const std::map<int64_t, std::vector<int64_t>>& block_mapping);
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void reshape_and_cache(
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torch::Tensor& key,
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torch::Tensor& value,
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torch::Tensor& key_cache,
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torch::Tensor& value_cache,
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torch::Tensor& slot_mapping);
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void gather_cached_kv(
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torch::Tensor& key,
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torch::Tensor& value,
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torch::Tensor& key_cache,
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torch::Tensor& value_cache,
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torch::Tensor& slot_mapping);
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PYBIND11_MODULE(TORCH_EXTENSION_NAME, m) {
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m.def(
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"swap_blocks",
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&swap_blocks,
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"Swap in (out) the cache blocks from src to dst");
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m.def(
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"copy_blocks",
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©_blocks,
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"Copy the cache blocks from src to dst");
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m.def(
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"reshape_and_cache",
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&reshape_and_cache,
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"Reshape the key and value tensors and cache them");
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m.def(
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"gather_cached_kv",
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&gather_cached_kv,
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"Gather key and value from the cache into contiguous QKV tensors");
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}
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