File size: 3,049 Bytes
055eba4 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 | // 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
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