91 lines
3.7 KiB
C++
91 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 1.08.2018
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//
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#include <op_boilerplate.h>
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#if NOT_EXCLUDED(OP_scatter_max)
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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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OP_IMPL(scatter_max, 3, 1, true) {
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auto input = INPUT_VARIABLE(0);
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auto indices = INPUT_VARIABLE(1);
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auto updates = INPUT_VARIABLE(2);
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auto output = OUTPUT_VARIABLE(0);
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if (!block.isInplace())
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output->assign(input);
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const bool lock = block.getBArguments()->empty() ? false : B_ARG(0);
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const int inRank = input->rankOf();
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const int indRank = indices->rankOf();
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const int updRank = updates->rankOf();
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REQUIRE_TRUE(inRank > 0, 0, "SCATTER_MAX OP: input should not be scalar !");
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if(inRank == 1) {
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REQUIRE_TRUE(indices->isSameShape(updates), 0, "SCATTER_MAX OP: when input array has rank = 1 then indices and updates must have the same shapes, but got %s and %s correspondingly !", ShapeUtils::shapeAsString(indices).c_str(), ShapeUtils::shapeAsString(updates).c_str());
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}
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else if (inRank == updRank && indices->isVector()) {
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std::vector<Nd4jLong> updShape = updates->getShapeAsVector();
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std::vector<Nd4jLong> inShape = input->getShapeAsVector();
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std::vector<Nd4jLong> expectedUpdShape = {indices->lengthOf()};
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expectedUpdShape.insert(expectedUpdShape.end(), inShape.begin()+1, inShape.end());
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REQUIRE_TRUE(expectedUpdShape == updShape, 0, "SCATTER_MAX 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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}
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else {
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REQUIRE_TRUE(updRank == indRank + inRank - 1, 0, "SCATTER_MAX OP: wrong rank of updates array, expected is %i, but got %i instead !", indRank + inRank - 1 , updRank);
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std::vector<Nd4jLong> updShape = updates->getShapeAsVector();
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std::vector<Nd4jLong> inShape = input->getShapeAsVector();
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std::vector<Nd4jLong> expectedUpdShape = indices->getShapeAsVector();
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expectedUpdShape.insert(expectedUpdShape.end(), inShape.begin()+1, inShape.end());
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REQUIRE_TRUE(expectedUpdShape == updShape, 0, "SCATTER_MAX 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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}
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if (!indices->isEmpty())
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helpers::scatter(block.launchContext(), pairwise::MaxPairwise, *indices, *updates, *output, lock);
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return Status::OK();
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}
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DECLARE_SYN(ScatterMax, scatter_max);
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DECLARE_TYPES(scatter_max) {
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getOpDescriptor()
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->setAllowedInputTypes(0, {ALL_INTS, ALL_FLOATS})
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->setAllowedInputTypes(1, {ALL_INTS})
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->setAllowedInputTypes(2, {ALL_INTS, ALL_FLOATS})
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->setAllowedOutputTypes({ALL_INTS, ALL_FLOATS});
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}
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}
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}
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#endif |