mirror of https://github.com/google/gemma.cpp.git
87 lines
3.0 KiB
C++
87 lines
3.0 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.
|
|
|
|
#include "backprop/forward.h"
|
|
|
|
#include "backprop/prompt.h"
|
|
#include "gemma/activations.h"
|
|
#include "gemma/common.h"
|
|
#include "hwy/contrib/thread_pool/thread_pool.h"
|
|
|
|
// Compiles this file for multiple architectures via "foreach_target.h", to
|
|
// which we pass the filename via macro 'argument'.
|
|
#undef HWY_TARGET_INCLUDE
|
|
#define HWY_TARGET_INCLUDE "backprop/forward.cc" // NOLINT
|
|
#include "hwy/foreach_target.h" // IWYU pragma: keep
|
|
|
|
#include "hwy/highway.h"
|
|
// After highway.h
|
|
#include "backprop/forward-inl.h"
|
|
#include "gemma/weights.h"
|
|
|
|
HWY_BEFORE_NAMESPACE();
|
|
namespace gcpp {
|
|
namespace HWY_NAMESPACE {
|
|
|
|
template <typename TConfig>
|
|
float CrossEntropyLossForwardPass(const Prompt& prompt,
|
|
const ByteStorageT& weights_u8,
|
|
ByteStorageT& forward_u8,
|
|
hwy::ThreadPool& pool) {
|
|
const auto& weights =
|
|
*reinterpret_cast<CompressedWeights<TConfig>*>(weights_u8.get());
|
|
auto& forward =
|
|
*reinterpret_cast<ForwardPass<float, TConfig>*>(forward_u8.get());
|
|
return
|
|
CrossEntropyLossForwardPass<TConfig, CompressedWeights, CompressedLayer>(
|
|
prompt.tokens, prompt.context_size, weights, forward, pool);
|
|
}
|
|
|
|
float CrossEntropyLossForwardPassT(Model model, const Prompt& prompt,
|
|
const ByteStorageT& weights,
|
|
ByteStorageT& forward,
|
|
hwy::ThreadPool& pool) {
|
|
// TODO(janwas): use CallFunctorForModel
|
|
switch (model) {
|
|
case Model::GEMMA_2B:
|
|
return CrossEntropyLossForwardPass<ConfigGemma2B<float>>(prompt, weights,
|
|
forward, pool);
|
|
case Model::GEMMA_TINY:
|
|
return CrossEntropyLossForwardPass<ConfigGemmaTiny<float>>(
|
|
prompt, weights, forward, pool);
|
|
default:
|
|
HWY_ABORT("Model type %d unknown.", static_cast<int>(model));
|
|
}
|
|
}
|
|
|
|
} // namespace HWY_NAMESPACE
|
|
} // namespace gcpp
|
|
HWY_AFTER_NAMESPACE();
|
|
|
|
#if HWY_ONCE
|
|
namespace gcpp {
|
|
|
|
HWY_EXPORT(CrossEntropyLossForwardPassT);
|
|
|
|
float CrossEntropyLossForwardPass(
|
|
const Model& model, const Prompt& prompt, const ByteStorageT& weights,
|
|
ByteStorageT& forward, hwy::ThreadPool& pool) {
|
|
return HWY_DYNAMIC_DISPATCH(CrossEntropyLossForwardPassT)(
|
|
model, prompt, weights, forward, pool);
|
|
}
|
|
|
|
} // namespace gcpp
|
|
#endif // HWY_ONCE
|