68 lines
2.7 KiB
C++
68 lines
2.7 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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// Created by raver119 on 07.10.2017.
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//
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#include <ops/declarable/DeclarableReductionOp.h>
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#include <ops/declarable/DeclarableOp.h>
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#include <helpers/TAD.h>
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#include <helpers/ShapeUtils.h>
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#include <helpers/ConstantTadHelper.h>
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namespace nd4j {
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namespace ops {
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DeclarableReductionOp::DeclarableReductionOp(int numInputs, int numOutputs, const char *opName, bool allowsInplace, int tArgs, int iArgs) : nd4j::ops::DeclarableOp(numInputs, numOutputs, opName, allowsInplace, tArgs, iArgs) {
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//
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}
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DeclarableReductionOp::~DeclarableReductionOp() {
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//
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}
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nd4j::ShapeList* DeclarableReductionOp::calculateOutputShape(nd4j::ShapeList* inputShape, nd4j::graph::Context& block) {
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// int numDims = INT_ARG(0);
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std::vector<int> dims;
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if (inputShape->size() > 1) {
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// the second argument is axis
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auto axis = INPUT_VARIABLE(1);
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for (int e = 0; e < axis->lengthOf(); e++)
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dims.push_back(axis->e<int>(e));
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}
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else if (block.getIArguments()->size())
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for (int e = 0; e < block.getIArguments()->size(); e++)
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dims.push_back(INT_ARG(e));
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else if (block.getAxis()->size()) {
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dims = *block.getAxis(); //.push_back(axis->e<int>(e));
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}
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if (dims.size() > 1)
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std::sort(dims.begin(), dims.end());
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// special case - output is scalar
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if (dims.size() == 0 || (dims.size() == 1 && dims.at(0) == MAX_INT)) {
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auto newShape = ConstantShapeHelper::getInstance()->scalarShapeInfo(block.dataType());
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return SHAPELIST(newShape);
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}
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auto newShape = ShapeUtils::evalReduceShapeInfo('c', dims, inputShape->at(0), false, false, block.getWorkspace());
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return SHAPELIST(newShape);
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}
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}
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}
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