244 lines
16 KiB
C++
244 lines
16 KiB
C++
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/*******************************************************************************
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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 saudet
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// @author raver119@gmail.com
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//
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#include <ops/declarable/PlatformHelper.h>
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#include <ops/declarable/OpRegistrator.h>
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#include <platform_boilerplate.h>
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#include <helpers/MKLDNNStream.h>
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#include "mkldnnUtils.h"
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#include <ops/declarable/helpers/convolutions.h>
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using namespace mkldnn;
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namespace nd4j {
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namespace ops {
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namespace platforms {
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PLATFORM_IMPL(conv2d_bp) {
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auto input = INPUT_VARIABLE(
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0); // [bS, iH, iW, iC] (NHWC) or [bS, iC, iH, iW] (NCHW)
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auto weights = INPUT_VARIABLE(
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1); // [kH, kW, iC, oC] always
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auto bias = block.width() > 3 ? INPUT_VARIABLE(2) : nullptr; // [oC]
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auto gradO = block.width() > 3 ? INPUT_VARIABLE(3) : INPUT_VARIABLE(
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2); // [bS, oH, oW, oC] (NHWC) or [bS, oC, oH, oW] (NCHW), epsilon_next
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auto gradI = OUTPUT_VARIABLE(
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0); // [bS, iH, iW, iC] (NHWC) or [bS, iC, iH, iW] (NCHW), epsilon
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auto gradW = OUTPUT_VARIABLE(
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1); // [kH, kW, iC, oC] always
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auto gradB = block.width() > 3 ? OUTPUT_VARIABLE(2) : nullptr; // [oC]
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int kH = INT_ARG(0); // filter(kernel) height
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int kW = INT_ARG(1); // filter(kernel) width
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int sH = INT_ARG(2); // strides height
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int sW = INT_ARG(3); // strides width
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int pH = INT_ARG(4); // paddings height
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int pW = INT_ARG(5); // paddings width
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int dH = INT_ARG(6); // dilations height
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int dW = INT_ARG(7); // dilations width
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int isSameMode = INT_ARG(8); // 0-VALID, 1-SAME
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int isNCHW = block.getIArguments()->size() > 9 ? !INT_ARG(9) : 1; // INT_ARG(9): 0-NCHW, 1-NHWC
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REQUIRE_TRUE(input->rankOf() == 4, 0,
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"CUSTOM CONV2D_BP OP: rank of input array must be equal to 4, but got %i instead !",
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input->rankOf());
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REQUIRE_TRUE(weights->rankOf() == 4, 0,
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"CUSTOM CONV2D_BP OP: rank of weights array must be equal to 4, but got %i instead !",
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weights->rankOf());
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REQUIRE_TRUE(gradO->rankOf() == 4, 0,
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"CUSTOM CONV2D_BP OP: rank of output's gradients (next epsilon) array must be equal to 4, but got %i instead !",
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gradO->rankOf());
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int bS, iC, iH, iW, oC, oH, oW; // batch size, input channels, input height/width, output channels, output height/width;
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int indIOioC, indIiH, indWoC, indWiC, indWkH, indOoH; // corresponding indexes
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ConvolutionUtils::getSizesAndIndexesConv2d(isNCHW, *input, *gradO, bS, iC, iH, iW, oC, oH, oW, indIOioC,
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indIiH, indWiC, indWoC, indWkH, indOoH);
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if (isSameMode) // SAME
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ConvolutionUtils::calcPadding2D(pH, pW, oH, oW, iH, iW, kH, kW, sH, sW, dH, dW);
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mkldnn_memory_desc_t empty;
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mkldnn::memory::desc conv_src_md(empty), conv_diff_src_md(empty), conv_weights_md(empty),
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conv_diff_weights_md(empty), conv_bias_md(empty), conv_dst_md(empty);
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mkldnn::memory::desc user_src_md(empty), user_diff_src_md(empty), user_weights_md(empty),
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user_diff_weights_md(empty), user_bias_md(empty), user_dst_md(empty);
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mkldnn::memory::dims conv_strides, conv_padding, conv_padding_r;
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mkldnnUtils::getMKLDNNMemoryDescConv2d(kH, kW, sH, sW, pH, pW, dH, dW, isSameMode, isNCHW,
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bS, iC, iH, iW, oC, oH, oW, input, gradI, weights, gradW,
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gradB, gradO,
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&conv_src_md, &conv_diff_src_md, &conv_weights_md,
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&conv_diff_weights_md, &conv_bias_md, &conv_dst_md,
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&user_src_md, &user_diff_src_md, &user_weights_md,
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&user_diff_weights_md, &user_bias_md, &user_dst_md,
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conv_strides, conv_padding, conv_padding_r);
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auto conv_desc = gradB != nullptr
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? convolution_forward::desc(prop_kind::forward,
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algorithm::convolution_auto, conv_src_md,
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conv_weights_md, conv_bias_md,
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conv_dst_md, conv_strides, conv_padding,
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conv_padding_r)
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: convolution_forward::desc(prop_kind::forward,
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algorithm::convolution_auto, conv_src_md,
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conv_weights_md,
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conv_dst_md, conv_strides, conv_padding,
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conv_padding_r);
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auto conv_prim_desc = convolution_forward::primitive_desc(conv_desc, mkldnnUtils::getEngine(
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LaunchContext::defaultContext()->engine()));
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if (gradW != nullptr) {
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auto convW_desc = gradB != nullptr
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? convolution_backward_weights::desc(
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algorithm::convolution_auto, conv_src_md, conv_diff_weights_md, conv_bias_md,
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conv_dst_md, conv_strides, conv_padding, conv_padding_r)
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: convolution_backward_weights::desc(
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algorithm::convolution_auto, conv_src_md, conv_diff_weights_md,
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conv_dst_md, conv_strides, conv_padding, conv_padding_r);
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auto engine = mkldnnUtils::getEngine(LaunchContext::defaultContext()->engine());
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mkldnn::stream stream(engine);
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auto convW_prim_desc = convolution_backward_weights::primitive_desc(convW_desc, engine,
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conv_prim_desc);
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auto userW_src_memory = mkldnn::memory(user_src_md, engine,
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const_cast<NDArray *>(input)->buffer());
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auto userW_weights_memory = mkldnn::memory(user_diff_weights_md, engine, gradW->buffer());
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auto userW_dst_memory = mkldnn::memory(user_dst_md, engine,
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const_cast<NDArray *>(gradO)->buffer());
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auto convW_src_memory = userW_src_memory;
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if (convW_prim_desc.src_desc() != userW_src_memory.get_desc()) {
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convW_src_memory = mkldnn::memory(convW_prim_desc.src_desc(), engine);
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reorder(userW_src_memory, convW_src_memory).execute(stream, userW_src_memory,
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convW_src_memory);
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}
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auto convW_weights_memory = userW_weights_memory;
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if (convW_prim_desc.diff_weights_desc() != userW_weights_memory.get_desc()) {
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convW_weights_memory = mkldnn::memory(convW_prim_desc.diff_weights_desc(), engine);
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}
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auto convW_dst_memory = userW_dst_memory;
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if (convW_prim_desc.diff_dst_desc() != userW_dst_memory.get_desc()) {
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convW_dst_memory = mkldnn::memory(convW_prim_desc.diff_dst_desc(), engine);
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reorder(userW_dst_memory, convW_dst_memory).execute(stream, userW_dst_memory,
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convW_dst_memory);
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}
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if (gradB != nullptr) {
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auto convW_bias_memory = mkldnn::memory(convW_prim_desc.diff_bias_desc(), engine,
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gradB->buffer());
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convolution_backward_weights(convW_prim_desc).execute(stream,
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{{MKLDNN_ARG_SRC, convW_src_memory},
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{MKLDNN_ARG_DIFF_DST, convW_dst_memory},
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{MKLDNN_ARG_DIFF_WEIGHTS, convW_weights_memory},
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{MKLDNN_ARG_DIFF_BIAS, convW_bias_memory}});
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} else {
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convolution_backward_weights(convW_prim_desc).execute(stream,
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{{MKLDNN_ARG_SRC, convW_src_memory},
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{MKLDNN_ARG_DIFF_DST, convW_dst_memory},
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{MKLDNN_ARG_DIFF_WEIGHTS, convW_weights_memory}});
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}
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if (convW_prim_desc.diff_weights_desc() != userW_weights_memory.get_desc()) {
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reorder(convW_weights_memory, userW_weights_memory).execute(stream, convW_weights_memory,
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userW_weights_memory);
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}
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stream.wait();
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}
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if (gradI != nullptr) {
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auto convI_desc =
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convolution_backward_data::desc(algorithm::convolution_auto, conv_diff_src_md,
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conv_weights_md, conv_dst_md, conv_strides,
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conv_padding, conv_padding_r);
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auto engine = mkldnnUtils::getEngine(LaunchContext::defaultContext()->engine());
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mkldnn::stream stream(engine);
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auto convI_prim_desc = convolution_backward_data::primitive_desc(convI_desc, engine,
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conv_prim_desc);
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auto userI_src_memory = mkldnn::memory(user_diff_src_md, engine, gradI->buffer());
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auto userI_weights_memory = mkldnn::memory(user_weights_md, engine,
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const_cast<NDArray *>(weights)->buffer());
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auto userI_dst_memory = mkldnn::memory(user_dst_md, engine,
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const_cast<NDArray *>(gradO)->buffer());
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auto convI_src_memory = userI_src_memory;
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if (convI_prim_desc.diff_src_desc() != userI_src_memory.get_desc()) {
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convI_src_memory = mkldnn::memory(convI_prim_desc.diff_src_desc(), engine);
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}
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auto convI_weights_memory = userI_weights_memory;
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if (convI_prim_desc.weights_desc() != userI_weights_memory.get_desc()) {
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convI_weights_memory = mkldnn::memory(convI_prim_desc.weights_desc(), engine);
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reorder(userI_weights_memory, convI_weights_memory).execute(stream, userI_weights_memory,
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convI_weights_memory);
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}
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auto convI_dst_memory = userI_dst_memory;
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if (convI_prim_desc.diff_dst_desc() != userI_dst_memory.get_desc()) {
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convI_dst_memory = mkldnn::memory(convI_prim_desc.diff_dst_desc(), engine);
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reorder(userI_dst_memory, convI_dst_memory).execute(stream, userI_dst_memory,
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convI_dst_memory);
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}
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convolution_backward_data(convI_prim_desc).execute(stream,
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{{MKLDNN_ARG_DIFF_DST, convI_dst_memory},
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{MKLDNN_ARG_WEIGHTS, convI_weights_memory},
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{MKLDNN_ARG_DIFF_SRC, convI_src_memory}});
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if (convI_prim_desc.diff_src_desc() != userI_src_memory.get_desc()) {
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reorder(convI_src_memory, userI_src_memory).execute(stream, convI_src_memory,
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userI_src_memory);
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}
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stream.wait();
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};
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return Status::OK();
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}
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PLATFORM_CHECK(conv2d_bp) {
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// we don't want to use mkldnn if cpu doesn't support avx/avx2
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if (::optimalLevel() < 2)
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return false;
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auto input = INPUT_VARIABLE(
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0); // [bS, iH, iW, iC] (NHWC) or [bS, iC, iH, iW] (NCHW)
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auto weights = INPUT_VARIABLE(
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1); // [kH, kW, iC, oC] always
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auto bias = block.width() > 3 ? INPUT_VARIABLE(2) : nullptr; // [oC]
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auto gradO = block.width() > 3 ? INPUT_VARIABLE(3) : INPUT_VARIABLE(
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2); // [bS, oH, oW, oC] (NHWC) or [bS, oC, oH, oW] (NCHW), epsilon_next
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auto gradI = OUTPUT_VARIABLE(
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0); // [bS, iH, iW, iC] (NHWC) or [bS, iC, iH, iW] (NCHW), epsilon
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auto gradW = OUTPUT_VARIABLE(
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1); // [kH, kW, iC, oC] always
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auto gradB = block.width() > 3 ? OUTPUT_VARIABLE(2) : nullptr; // [oC]
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return block.isUseMKLDNN() &&
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nd4j::MKLDNNStream::isSupported({input, weights, bias, gradO, gradI, gradW, gradB});
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}
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}
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}
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}
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