77 lines
2.3 KiB
C++
77 lines
2.3 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 01.11.2017
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//
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#include <op_boilerplate.h>
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#if NOT_EXCLUDED(OP_parallel_stack)
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#include <ops/declarable/CustomOperations.h>
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#include<ops/declarable/helpers/stack.h>
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namespace nd4j {
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namespace ops {
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CUSTOM_OP_IMPL(parallel_stack, -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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// check whether shapes of all input array are the same
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for (int i = 0; i < (int) block.width() - 1; ++i)
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REQUIRE_TRUE(shape::equalsSoft((INPUT_VARIABLE(i))->getShapeInfo(), (INPUT_VARIABLE(i+1))->getShapeInfo()), 0, "PARALLEL_STACK op: the shapes of all input arrays must be the same !");
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std::vector<const NDArray*> inArrs(block.width());
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for(int i = 0; i < block.width(); ++i)
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inArrs[i] = INPUT_VARIABLE(i);
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const int dim = 0;
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helpers::stack(block.launchContext(), inArrs, output, dim);
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return Status::OK();
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}
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DECLARE_TYPES(parallel_stack) {
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getOpDescriptor()
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->setAllowedInputTypes(nd4j::DataType::ANY)
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->setAllowedOutputTypes({ALL_FLOATS});
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}
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DECLARE_SHAPE_FN(parallel_stack) {
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auto inShapeInfo = inputShape->at(0);
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int rank = inShapeInfo[0];
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Nd4jLong* outShapeInfo = nullptr;
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ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(rank+1), Nd4jLong);
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outShapeInfo[0] = rank + 1;
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outShapeInfo[1] = block.width();
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for(int i = 1; i <= rank; ++i)
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outShapeInfo[i+1] = inShapeInfo[i];
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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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}
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#endif |