src/operator/tensor/broadcast_reduce_prod_value.cc

/*
 * 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,
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 */

/*!
 * \file broadcast_reduce_prod_value.cc
 * \brief CPU Implementation of broadcast and reduce of prod functions based on value.
 */
#include "./broadcast_reduce_op.h"

namespace mxnet {
namespace op {

MXNET_OPERATOR_REGISTER_REDUCE(prod)
    .describe(get_reduce_axes_description("product", __LINE__))
    .set_attr<FCompute>("FCompute<cpu>", ReduceAxesCompute<cpu, mshadow_op::product>)
    .set_attr<FResourceRequest>("FResourceRequest",
                                [](const NodeAttrs& attrs) {
                                  return std::vector<ResourceRequest>{ResourceRequest::kTempSpace};
                                })
    .set_attr<THasDeterministicOutput>("THasDeterministicOutput", true)
    .set_attr<nnvm::FGradient>("FGradient", ReduceGrad{"_backward_prod"});

MXNET_OPERATOR_REGISTER_REDUCE_BACKWARD(_backward_prod)
    .set_num_inputs(3)
    .set_attr<FCompute>("FCompute<cpu>", ReduceAxesBackwardUseInOut<cpu, mshadow_op::rdiv>);

MXNET_OPERATOR_REGISTER_REDUCE(nanprod)
    .describe(
        R"code(Computes the product of array elements over given axes treating Not a Numbers (``NaN``) as one.

)code" ADD_FILELINE)
    .set_attr<FCompute>("FCompute<cpu>", ReduceAxesCompute<cpu, mshadow_op::nanprod>)
    .set_attr<FResourceRequest>("FResourceRequest",
                                [](const NodeAttrs& attrs) {
                                  return std::vector<ResourceRequest>{ResourceRequest::kTempSpace};
                                })
    .set_attr<THasDeterministicOutput>("THasDeterministicOutput", true)
    .set_attr<nnvm::FGradient>("FGradient", ReduceGrad{"_backward_nanprod"});

MXNET_OPERATOR_REGISTER_REDUCE_BACKWARD(_backward_nanprod)
    .set_num_inputs(3)
    .set_attr<FCompute>("FCompute<cpu>", ReduceAxesBackwardUseInOut<cpu, mshadow_op::nanprod_grad>);

}  // namespace op
}  // namespace mxnet