graph_send_recv_grad_kernel.h

// Copyright (c) 2022 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 <string>
#include "paddle/phi/core/dense_tensor.h"
#include "paddle/utils/optional.h"

namespace phi {

template <typename T, typename Context>
void GraphSendRecvGradKernel(const Context& ctx,
                             const DenseTensor& x,
                             const DenseTensor& src_index,
                             const DenseTensor& dst_index,
                             paddle::optional<const DenseTensor&> out,
                             paddle::optional<const DenseTensor&> dst_count,
                             const DenseTensor& out_grad,
                             const std::string& pool_type,
                             DenseTensor* x_grad);
}  // namespace phi