mirror of https://github.com/google/gemma.cpp.git
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
// Copyright 2024 Google LLC
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// https://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#ifndef THIRD_PARTY_GEMMA_CPP_GEMMA_KV_CACHE_H_
|
|
#define THIRD_PARTY_GEMMA_CPP_GEMMA_KV_CACHE_H_
|
|
|
|
#include <stddef.h>
|
|
|
|
#include "gemma/configs.h" // ModelConfig
|
|
#include "util/mat.h"
|
|
#include "hwy/aligned_allocator.h"
|
|
|
|
namespace gcpp {
|
|
|
|
struct KVCache {
|
|
KVCache(const ModelConfig& weights_config, size_t prefill_tbatch_size);
|
|
|
|
// Returns a deep copy of the KVCache.
|
|
KVCache Copy(const ModelConfig& weights_config, size_t prefill_tbatch_size);
|
|
|
|
size_t griffin_layers = 0;
|
|
// griffin_layers, griffin_conv1d_cols * config.model_dim
|
|
MatStorageT<float> conv1d_cache;
|
|
MatStorageT<float> rglru_cache; // griffin_layers, config.model_dim
|
|
// Zero-initialize the Griffin recurrent block cache, i.e. the conv1d_cache
|
|
// and rglru_cache.
|
|
void ZeroGriffinCache();
|
|
|
|
size_t seq_len = 0; // = kSeqLen + prefill_tbatch_size
|
|
|
|
// seq_len * kGemmaLayers * kKVHeads * kQKVDim * 2
|
|
hwy::AlignedFreeUniquePtr<float[]> kv_cache;
|
|
};
|
|
|
|
} // namespace gcpp
|
|
|
|
#endif // THIRD_PARTY_GEMMA_CPP_GEMMA_KV_CACHE_H_
|