82 lines
2.9 KiB
C++
82 lines
2.9 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 06.12.2017.
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//
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#include <system/op_boilerplate.h>
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#if NOT_EXCLUDED(OP_diag_part)
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#include <ops/declarable/CustomOperations.h>
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#include <ops/declarable/helpers/diag.h>
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namespace sd {
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namespace ops {
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CUSTOM_OP_IMPL(diag_part, 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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const int inRank = input->rankOf();
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// input validation
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REQUIRE_TRUE(inRank == 2 || inRank == 4 || inRank == 6, 0, "DIAG_PART op: input array must have rank among following three possible values: 2, 4, 6, but got %i instead !", inRank);
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for(int i = 0; i < inRank-1; ++i)
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REQUIRE_TRUE(input->sizeAt(i) == input->sizeAt(i+1), 0, "DIAG_PART op: wrong shape of input array %s ! All dimensions must be equal !", ShapeUtils::shapeAsString(input).c_str());
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helpers::diagPartFunctor(block.launchContext(), input, output);
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return Status::OK();
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}
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DECLARE_SYN(DiagPart, diag_part);
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DECLARE_TYPES(diag_part) {
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getOpDescriptor()
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->setAllowedInputTypes(sd::DataType::ANY)
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->setSameMode(true);
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}
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DECLARE_SHAPE_FN(diag_part) {
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auto inputShapeInfo = inputShape->at(0);
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const int inRank = inputShapeInfo[0];
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// input validation
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REQUIRE_TRUE(inRank == 2 || inRank == 4 || inRank == 6, 0, "DIAG_PART op: input array must have rank among following three possible values: 2, 4, 6, but got %i instead !", inRank);
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for(int i = 1; i < inRank; ++i)
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REQUIRE_TRUE(inputShapeInfo[i] == inputShapeInfo[i+1], 0, "DIAG_PART op: wrong shape of input array %s ! All dimensions must be equal !", ShapeUtils::shapeAsString(inputShapeInfo).c_str());
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Nd4jLong* outShapeInfo = nullptr;
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int outRank = inRank/2;
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ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(outRank), Nd4jLong);
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outShapeInfo[0] = outRank;
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for(int i = 1; i <= outRank; ++i)
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outShapeInfo[i] = inputShapeInfo[i];
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ShapeUtils::updateStridesAndType(outShapeInfo, inputShapeInfo, shape::order(inputShapeInfo));
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return SHAPELIST(ConstantShapeHelper::getInstance()->createFromExisting(outShapeInfo, block.workspace()));
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}
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}
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}
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#endif |