// 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 "paddle/phi/core/dense_tensor.h"

namespace phi {
namespace funcs {

// Use For Matrix OP, reduce_sum 'in' according to out's dim
// for example: in's dim = [5, 3, 2, M, N] ; out's dim = [3, 1, M, N]
// axis [0, 2] of DenseTensor 'in' will be reduced
template <typename T, typename Context>
class MatrixReduceSumFunctor {
 public:
  void operator()(const Context& dev_ctx,
                  const DenseTensor& in,
                  DenseTensor* out);
};

}  // namespace funcs
}  // namespace phi