You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.4 KiB
45 lines
1.4 KiB
5 years ago
|
// Copyright (c) 2019 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/fluid/framework/op_registry.h"
|
||
|
|
|
||
|
|
namespace paddle {
|
||
|
|
namespace operators {
|
||
|
|
using Tensor = framework::Tensor;
|
||
|
|
|
||
|
|
template <typename DeviceContext, typename T>
|
||
|
|
class CPUSeedKernel : public framework::OpKernel<T> {
|
||
|
|
public:
|
||
|
|
void Compute(const framework::ExecutionContext& context) const override {
|
||
|
|
auto* out = context.Output<Tensor>("Out");
|
||
|
|
auto* out_data = out->mutable_data<T>(context.GetPlace());
|
||
|
|
int user_seed = context.Attr<int>("seed");
|
||
|
|
|
||
|
|
// NOTE: fixed seed should only be used in unittest or for debug.
|
||
|
|
// Guarantee to use random seed in training.
|
||
|
|
std::random_device rnd;
|
||
|
|
int seed;
|
||
|
|
if (user_seed != 0) {
|
||
|
|
seed = user_seed;
|
||
|
|
} else {
|
||
|
|
seed = rnd();
|
||
|
|
}
|
||
|
|
out_data[0] = seed;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace operators
|
||
|
|
} // namespace paddle
|