wehub-resource-sync
49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
// 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 {
|
|
|
|
/**
|
|
* @brief Trace Kernel.
|
|
* Return the sum along diagonals of the input tensor.
|
|
* The behavior of this operator is similar to how `numpy.trace` works.
|
|
*
|
|
* If Input is 2-D, returns the sum of diagonal.
|
|
* If Input has larger dimensions, then returns an tensor of diagonals
|
|
* sum, diagonals be taken from the 2-D planes specified by dim1 and
|
|
* dim2.
|
|
* @param ctx device context
|
|
* @param x The input tensor, from which the diagonals are taken
|
|
* @param offset offset of the diagonal from the main diagonal.
|
|
* Can be bothpositive and negative.
|
|
* @param axis1 the first axis of the 2-D planes from which the diagonals
|
|
* should be taken. Can be either positive or negative
|
|
* @param axis2 the second axis of the 2-D planes from which the diagonals
|
|
* should be taken. Can be either positive or negative
|
|
* @param out the sum along diagonals of the input tensor
|
|
*/
|
|
template <typename T, typename Context>
|
|
void TraceKernel(const Context& dev_ctx,
|
|
const DenseTensor& x,
|
|
int offset,
|
|
int axis1,
|
|
int axis2,
|
|
DenseTensor* out);
|
|
|
|
} // namespace phi
|