| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| /*! |
| * Copyright (c) 2019 by Contributors |
| * \file np_potrf.cc |
| * \brief CPU implementation placeholder of Cholesky Operator |
| */ |
| #include <mxnet/operator_util.h> |
| #include <vector> |
| #include "./np_potrf-inl.h" |
| #include "../../mshadow_op.h" |
| #include "../../mxnet_op.h" |
| #include "../../operator_common.h" |
| #include "../../elemwise_op_common.h" |
| |
| namespace mxnet { |
| namespace op { |
| |
| inline bool NumpyLaCholeskyShape(const nnvm::NodeAttrs& attrs, |
| mxnet::ShapeVector* in_attrs, |
| mxnet::ShapeVector* out_attrs) { |
| const mxnet::TShape& in_shape = (*in_attrs)[0]; |
| CHECK_GE(in_shape.ndim(), 2) |
| << "Array must be at least two-dimensional"; |
| return ElemwiseShape<1, 1>(attrs, in_attrs, out_attrs); |
| } |
| |
| // calls forward and backward implemented in la_op |
| NNVM_REGISTER_OP(_npi_cholesky) |
| .describe(R"code()code" ADD_FILELINE) |
| .set_num_inputs(1) |
| .set_num_outputs(1) |
| .set_attr_parser(ParamParser<LaCholeskyParam>) |
| .set_attr<nnvm::FListInputNames>("FListInputNames", [](const NodeAttrs& attrs) |
| { return std::vector<std::string>{"A"}; } ) |
| .set_attr<mxnet::FInferShape>("FInferShape", NumpyLaCholeskyShape) |
| .set_attr<nnvm::FInferType>("FInferType", ElemwiseType<1, 1>) |
| .set_attr<nnvm::FInplaceOption>("FInplaceOption", [](const NodeAttrs& attrs) |
| { return std::vector<std::pair<int, int>>{{0, 0}}; }) |
| .set_attr<FCompute>("FCompute<cpu>", LaOpForward<cpu, 2, 2, 1, 1, potrf>) |
| .set_attr<nnvm::FGradient>("FGradient", ElemwiseGradUseOut{"_backward_linalg_potrf"}) |
| .add_argument("A", "NDArray-or-Symbol", "Tensor of input matrices to be decomposed") |
| .add_arguments(LaCholeskyParam::__FIELDS__()); |
| |
| } // namespace op |
| } // namespace mxnet |
