47 lines
1.4 KiB
47 lines
1.4 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
|
|
|
|
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/framework/eigen.h"
|
|
#include "paddle/framework/operator.h"
|
|
#include "paddle/framework/tensor.h"
|
|
#include "paddle/platform/hostdevice.h"
|
|
|
|
namespace paddle {
|
|
namespace operators {
|
|
namespace math {
|
|
|
|
template <typename T>
|
|
struct TolerableValue {
|
|
HOSTDEVICE T operator()(const T& x) const {
|
|
PADDLE_ASSERT(std::is_floating_point<T>::value);
|
|
const T kApproInf = 1e20;
|
|
|
|
if (x == INFINITY) return kApproInf;
|
|
if (x == -INFINITY) return -kApproInf;
|
|
return x;
|
|
}
|
|
};
|
|
|
|
template <typename Place, typename T>
|
|
class CrossEntropyFunctor {
|
|
public:
|
|
void operator()(const platform::DeviceContext& context,
|
|
framework::Tensor* out, const framework::Tensor* prob,
|
|
const framework::Tensor* labels, const bool softLabel);
|
|
};
|
|
} // namespace math
|
|
} // namespace operators
|
|
} // namespace paddle
|