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87 lines
2.4 KiB
87 lines
2.4 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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#pragma once
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#include "paddle/math/MathFunctions.h"
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#include "paddle/parameter/Parameter.h"
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#include "paddle/parameter/Weight.h"
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namespace paddle {
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class MKLPackedWeight {
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protected:
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/// The pointer of weight
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real *weight_;
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/// The pointer of cblas packed gemm to weight
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real *packedWeight_;
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size_t height_;
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size_t width_;
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bool transW_;
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public:
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explicit MKLPackedWeight(MatrixPtr weight, bool transW = false) {
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packedWeight_ = nullptr;
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weight_ = weight->getData();
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height_ = weight->getHeight();
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width_ = weight->getWidth();
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transW_ = transW;
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}
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~MKLPackedWeight() { free_(); }
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void pack() { pack_(weight_); }
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void gemm_compute(const MatrixPtr src, MatrixPtr dst) {
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cblas_sgemm_compute(CblasRowMajor,
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CblasNoTrans,
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CblasPacked,
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src->getHeight(),
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transW_ ? height_ : width_,
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transW_ ? width_ : height_,
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src->getData(),
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src->getWidth(),
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packedWeight_,
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width_,
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1.0,
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dst->getData(),
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dst->getWidth());
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}
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protected:
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void pack_(real *src) {
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if (!packedWeight_) {
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packedWeight_ = cblas_sgemm_alloc(CblasBMatrix, 1, width_, height_);
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}
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cblas_sgemm_pack(CblasRowMajor,
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CblasBMatrix,
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transW_ ? CblasTrans : CblasNoTrans,
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1,
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transW_ ? height_ : width_,
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transW_ ? width_ : height_,
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1.0,
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src,
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width_,
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packedWeight_);
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}
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void free_() {
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if (packedWeight_) {
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cblas_sgemm_free(packedWeight_);
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}
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}
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};
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} // namespace paddle
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