// Copyright (c) 2024 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 <vector>

#include "paddle/phi/core/dense_tensor.h"
#include "paddle/phi/core/kernel_registry.h"

namespace phi {

template <typename T, typename Context>
void PartialSumKernel(const Context& dev_ctx,
                      const std::vector<const DenseTensor*>& x,
                      int start_index,
                      int length,
                      DenseTensor* out);

template <typename T, typename Context>
void PartialSumGradientOpKernel(const Context& dev_ctx,
                                const std::vector<const DenseTensor*>& x,
                                const DenseTensor& out_grad,
                                int start_index,
                                int length,
                                std::vector<DenseTensor*> x_grad);

}  // namespace phi
