100 lines
4.6 KiB
C++
100 lines
4.6 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 21.08.2018
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//
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#include <op_boilerplate.h>
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#if NOT_EXCLUDED(OP_scatter_nd)
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#include <ops/declarable/CustomOperations.h>
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#include <ops/declarable/generic/helpers/ScatterHelper.h>
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namespace nd4j {
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namespace ops {
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CUSTOM_OP_IMPL(scatter_nd, 3, 1, false, 0, 0) {
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auto indices = INPUT_VARIABLE(0);
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auto updates = INPUT_VARIABLE(1);
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auto shape = INPUT_VARIABLE(2);
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auto output = OUTPUT_VARIABLE(0);
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const bool lock = block.getBArguments()->empty() ? false : B_ARG(0);
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const bool checkIndices = block.getBArguments()->size() <= 1 ? false : B_ARG(1);
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const int indRank = indices->rankOf();
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const int updRank = updates->rankOf();
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const int shapeRank = shape->rankOf();
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const Nd4jLong shapeLen = shape->lengthOf();
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REQUIRE_TRUE(shapeRank == 1, 0, "SCATTER_ND OP: the rank of shape array must be 1, but got %i instead !", shapeRank);
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REQUIRE_TRUE(indices->sizeAt(-1) <= shapeLen, 0, "SCATTER_ND OP: last dimension of indices array must be <= length of shape array, but got %i and %i correspondingly !", indices->sizeAt(-1), shapeLen);
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// REQUIRE_TRUE(updRank == (indRank + shapeLen - 2), 0, "SCATTER_ND OP: the equality updates_rank = (indices_rank + shape_length - 2) must be true for input arrays, but got instead: updates_rank = %i, indices_rank = %i, shape_length = %i !", updRank, indRank, shapeLen);
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REQUIRE_TRUE(updRank == (indRank - 1 + shapeLen - indices->sizeAt(-1)), 0, "SCATTER_ND OP: the equality updates_rank = (indices_rank - 1 + shape_length - last_indices_dimension) must be true for input arrays, but got instead: updates_rank = %i, shape_length = %i, last_indices_dimension = %i !", updRank, shapeLen, indices->sizeAt(-1));
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std::vector<Nd4jLong> outShape = shape->getBufferAsVector<Nd4jLong>();
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std::vector<Nd4jLong> updShape = updates->getShapeAsVector();
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std::vector<Nd4jLong> indShape = indices->getShapeAsVector();
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std::vector<Nd4jLong> expectedUpdShape(std::begin(indShape), std::end(indShape) - 1);
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std::move(std::begin(outShape) + indices->sizeAt(-1), std::end(outShape), std::back_inserter(expectedUpdShape));
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REQUIRE_TRUE(expectedUpdShape == updShape, 0, "SCATTER_ND OP: wrong shape of updates array, expected is %s, but got %s instead !", ShapeUtils::shapeAsString(expectedUpdShape).c_str(), ShapeUtils::shapeAsString(updShape).c_str());
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if(checkIndices) {
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const Nd4jLong numOfBadIndx = helpers::checkIndices(block.launchContext(), *indices, *output);
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REQUIRE_TRUE(numOfBadIndx == 0, 0, "SCATTER_ND OP: please check elements of indices-array, total number of wrong elements is %lld!", numOfBadIndx);
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}
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// initial zeroing of output
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*output = 0;
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helpers::scatterND(block.launchContext(), pairwise::Add, *indices, *updates, *output, lock);
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return Status::OK();
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}
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DECLARE_TYPES(scatter_nd) {
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getOpDescriptor()
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->setAllowedInputTypes(0, {ALL_INTS})
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->setAllowedInputTypes(1, {ALL_INTS, ALL_FLOATS})
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->setAllowedInputTypes(2, {ALL_INTS})
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->setAllowedOutputTypes({ALL_INTS, ALL_FLOATS});
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}
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////////////////////////////////////////////////////////////////////////
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DECLARE_SHAPE_FN(scatter_nd) {
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auto shape = INPUT_VARIABLE(2);
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auto updShapeInfo = inputShape->at(1);
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Nd4jLong *outShapeInfo;
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ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(shape->lengthOf()), Nd4jLong);
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outShapeInfo[0] = shape->lengthOf();
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for (int i = 0; i < outShapeInfo[0]; ++i)
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outShapeInfo[i + 1] = shape->e<Nd4jLong>(i);
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ShapeUtils::updateStridesAndType(outShapeInfo, updShapeInfo, shape::order(updShapeInfo));
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return SHAPELIST(CONSTANT(outShapeInfo));
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}
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}
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}
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#endif
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