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85 lines
2.5 KiB
85 lines
2.5 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#include "Weight.h"
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#include "paddle/utils/Logging.h"
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namespace paddle {
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Weight::Weight(size_t height, size_t width, ParameterPtr param) {
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VectorPtr vPtr = param->getBuf(PARAMETER_VALUE);
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VectorPtr gPtr = param->getBuf(PARAMETER_GRADIENT);
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// create a new weight
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if (param->isSparse()) {
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CHECK_LE(param->getSize(), width * height);
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} else {
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CHECK_EQ(param->getSize(), width * height);
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}
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// weight_
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weight_ = param->getMat(PARAMETER_VALUE);
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if (!weight_ && vPtr) {
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weight_ = Matrix::create(vPtr->getMemoryHandle(), height, width);
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}
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if (weight_) {
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CHECK_EQ(height, weight_->getHeight());
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CHECK_EQ(width, weight_->getWidth());
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}
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// weightGrad
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weightGrad_ = param->getMat(PARAMETER_GRADIENT);
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if (!weightGrad_ && gPtr) {
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weightGrad_ = Matrix::create(gPtr->getMemoryHandle(), height, width);
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}
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if (weightGrad_) {
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CHECK_EQ(height, weightGrad_->getHeight());
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CHECK_EQ(width, weightGrad_->getWidth());
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}
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parameter_ = param;
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}
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Weight::Weight(size_t height, size_t width, ParameterPtr param, size_t offset) {
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VectorPtr vPtr = param->getBuf(PARAMETER_VALUE);
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VectorPtr gPtr = param->getBuf(PARAMETER_GRADIENT);
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// create a new weight
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CHECK_LE(offset + width * height, param->getSize());
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// weight_
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if (vPtr) {
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weight_ = Matrix::create(vPtr->getData() + offset,
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height,
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width,
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/* trans */ false,
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param->useGpu());
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}
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// weightGrad
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if (gPtr) {
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weightGrad_ = Matrix::create(gPtr->getData() + offset,
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height,
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width,
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/* trans */ false,
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param->useGpu());
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}
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parameter_ = param;
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}
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const ParameterPtr& Weight::getParameterPtr() { return parameter_; }
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void Weight::setParameterPtr(ParameterPtr param) { parameter_ = param; }
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} // namespace paddle
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