114 lines
3.7 KiB
C++
114 lines
3.7 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 Yurii Shyrma (iuriish@yahoo.com), created on 31.03.2018
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//
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#include <ops/declarable/CustomOperations.h>
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#include<ops/declarable/helpers/transforms.h>
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namespace nd4j {
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namespace ops {
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//////////////////////////////////////////////////////////////////////////
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CUSTOM_OP_IMPL(triu, 1, 1, false, 0, 0) {
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auto input = INPUT_VARIABLE(0);
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auto output = OUTPUT_VARIABLE(0);
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REQUIRE_TRUE(input->rankOf() > 0, 0, "TRIU OP: the rank of input array must be > 0, but got %i instead !", input->rankOf());
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const int diag = block.getIArguments()->size() > 0 ? INT_ARG(0) : 0;
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BUILD_SINGLE_SELECTOR(input->dataType(), input->fillAsTriangular, (0, diag, 0, 'l', output), LIBND4J_TYPES);
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return Status::OK();
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}
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DECLARE_TYPES(triu) {
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getOpDescriptor()->setAllowedInputTypes(0, {ALL_FLOATS})
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->setAllowedOutputTypes(0, {ALL_FLOATS});
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}
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DECLARE_SHAPE_FN(triu) {
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auto inShapeInfo = inputShape->at(0);
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REQUIRE_TRUE(inShapeInfo[0] > 0, 0, "TRIU OP: the rank of input array must be > 0, but got %i instead !", inShapeInfo[0]);
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int rank = (inShapeInfo[0] == 1) ? 2 : inShapeInfo[0];
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Nd4jLong *outShapeInfo = nullptr;
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ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(rank), Nd4jLong);
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memcpy(outShapeInfo, inShapeInfo, (1 + rank) * sizeof(Nd4jLong)); // copy rank and dimensions values only
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if(inShapeInfo[0] == 1) {
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outShapeInfo[0] = rank;
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outShapeInfo[1] = inShapeInfo[1];
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outShapeInfo[2] = inShapeInfo[1];
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}
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ShapeUtils::updateStridesAndType(outShapeInfo, inShapeInfo, shape::order(inShapeInfo));
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return SHAPELIST(CONSTANT(outShapeInfo));
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}
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//////////////////////////////////////////////////////////////////////////
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CUSTOM_OP_IMPL(triu_bp, 2, 1, false, 0, 0) {
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auto input = INPUT_VARIABLE(0);
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auto gradO = INPUT_VARIABLE(1); // dLoss/dO
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auto gradI = OUTPUT_VARIABLE(0); // dLoss/dI
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REQUIRE_TRUE(input->rankOf() > 0, 0, "TRIU_BP OP: the rank of input array must be > 0, but got %i instead !", input->rankOf());
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const int diag = block.getIArguments()->size() > 0 ? INT_ARG(0) : 0;
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helpers::triuBP(block.launchContext(), *input, *gradO, *gradI, diag);
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return Status::OK();
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}
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DECLARE_TYPES(triu_bp) {
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getOpDescriptor()->setAllowedInputTypes(0, {ALL_FLOATS})
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->setAllowedInputTypes(1, {ALL_FLOATS})
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->setAllowedOutputTypes(0, {ALL_FLOATS});
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}
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DECLARE_SHAPE_FN(triu_bp) {
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auto gradOShapeInfo = inputShape->at(1);
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int rank = gradOShapeInfo[0];
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Nd4jLong* outShapeInfo = nullptr;
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ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(rank), Nd4jLong);
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memcpy(outShapeInfo, gradOShapeInfo, (1 + rank) * sizeof(Nd4jLong)); // copy rank and dimensions values only
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auto in = inputShape->at(0);
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ShapeUtils::updateStridesAndType(outShapeInfo, in, shape::order(in));
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return SHAPELIST(CONSTANT(outShapeInfo));
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}
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}
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} |