61 lines
1.9 KiB
C++
61 lines
1.9 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, created on 31.03.2018
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//
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#include <ops/declarable/CustomOperations.h>
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namespace nd4j {
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namespace ops {
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//////////////////////////////////////////////////////////////////////////
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CUSTOM_OP_IMPL(tri, -2, 1, false, 0, 1) {
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auto output = OUTPUT_VARIABLE(0);
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const int diag = block.numI() > 2 ? INT_ARG(2) : 0;
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BUILD_SINGLE_SELECTOR(output->dataType(), output->fillAsTriangular, (1., diag + 1, 0, 'l'), LIBND4J_TYPES); // fill with unities lower triangular block of matrix
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BUILD_SINGLE_SELECTOR(output->dataType(), output->fillAsTriangular, (0., 0, diag, 'u'), LIBND4J_TYPES); // fill with zeros upper triangular block of matrix
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// output->setValueInDiagMatrix(1., diag, 'l');
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// output->setValueInDiagMatrix(0., diag+1, 'u');
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return Status::OK();
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}
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DECLARE_TYPES(tri) {
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getOpDescriptor()
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->setAllowedOutputTypes(0, {ALL_FLOATS, ALL_INTS});
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}
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DECLARE_SHAPE_FN(tri) {
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const int rows = INT_ARG(0);
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const int cols = block.numI() > 1 ? INT_ARG(1) : rows;
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return SHAPELIST(ConstantShapeHelper::getInstance()->createShapeInfo(block.dataType(), 'c', {rows, cols}));
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}
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}
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} |