sparse_weight_embedding_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 "paddle/phi/core/dense_tensor.h"
#include "paddle/phi/core/selected_rows.h"

namespace phi {

template <typename T, typename Context>
void SparseWeightEmbeddingGradKernel(const Context& ctx,
                                     const DenseTensor& input,
                                     const SelectedRows& weight,
                                     const DenseTensor& out_grad,
                                     int64_t padding_idx,
                                     DenseTensor* weight_grad);

template <typename T, typename Context>
void SparseWeightEmbeddingSparseGradKernel(const Context& ctx,
                                           const DenseTensor& input,
                                           const SelectedRows& weight,
                                           const DenseTensor& out_grad,
                                           int64_t padding_idx,
                                           SelectedRows* weight_grad);

}  // namespace phi