81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/*******************************************************************************
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* Copyright (c) 2015-2018 Skymind, Inc.
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License, Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0.
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*
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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, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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* SPDX-License-Identifier: Apache-2.0
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******************************************************************************/
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//
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// @author raver119@gmail.com
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//
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#include <ops/declarable/helpers/max_pooling.h>
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#include <ops/declarable/helpers/convolutions.h>
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namespace sd {
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namespace ops {
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namespace helpers {
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template <typename T>
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static void maxPoolingFunctor_(sd::graph::Context& block, NDArray* input, NDArray* values, std::vector<int> const& params, NDArray* indices) {
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int kY = params[0];
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int kX = params[1];
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int sY = params[2];
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int sX = params[3];
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int pY = params[4];
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int pX = params[5];
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int dY = params[6];
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int dX = params[7];
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int oY = 0;
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int oX = 0;
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const int bSize = input->sizeAt(0);
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const int inD = input->sizeAt(1);
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const int inY = input->sizeAt(2);
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const int inX = input->sizeAt(3);
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const bool isSameMode = params[8] != 0;
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ConvolutionUtils::calcOutSizePool2D(oY, oX, kY, kX, sY, sX, pY, pX, dY, dX, inY, inX, isSameMode);
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if (isSameMode)
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ConvolutionUtils::calcPadding2D(pY, pX, oY, oX, inY, inX, params[0], params[1], params[2], params[3], params[6], params[7]);
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// 0,1 - kernel Height/Width; 2,3 - stride Height/Width; 4,5 - pad Height/Width; 6,7 - dilation Height/Width; 8 - poolingMode; 9 - divisor;
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ConvolutionUtils::pooling2d(block, *input, *values, kY, kX, sY, sX, pY, pX, dY, dX, PoolingType::MAX_POOL, 1);
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if (nullptr != indices) {
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// for max_pool_with_argmax
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int total = input->lengthOf();
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int part = total / bSize;
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for (int k = 0; k < total; )
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for (int i = 0; i < part; i++) {
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indices->p(k++, i);
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}
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}
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}
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void maxPoolingFunctor(sd::LaunchContext * context, sd::graph::Context& block, NDArray* input, NDArray* values, std::vector<int> const& params, NDArray* indices) {
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BUILD_SINGLE_SELECTOR(input->dataType(), maxPoolingFunctor_, (block, input, values, params, indices), LIBND4J_TYPES);
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}
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}
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}
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} |