// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved. // // Licensed 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. #pragma once #include "paddle/fluid/operators/reduce_op.h" namespace paddle { namespace operators { struct SumFunctor { template <typename DeviceContext, typename X, typename Y, typename Dim> void operator()(const DeviceContext& place, X* x, Y* y, const Dim& dim) { y->device(place) = x->sum(dim); } }; struct SumGradFunctor { template <typename DeviceContext, typename X, typename Y, typename DX, typename DY, typename Dim> void operator()(const DeviceContext& place, X* x, Y* y, DX* dx, DY* dy, const Dim& dim, int size) { dx->device(place) = dy->broadcast(dim); } }; } // namespace operators } // namespace paddle