1 | /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. |
2 | |
3 | Licensed under the Apache License, Version 2.0 (the "License"); |
4 | you may not use this file except in compliance with the License. |
5 | You may obtain a copy of the License at |
6 | |
7 | http://www.apache.org/licenses/LICENSE-2.0 |
8 | |
9 | Unless required by applicable law or agreed to in writing, software |
10 | distributed under the License is distributed on an "AS IS" BASIS, |
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | See the License for the specific language governing permissions and |
13 | limitations under the License. |
14 | ==============================================================================*/ |
15 | |
16 | #ifndef TENSORFLOW_CORE_KERNELS_RANDOM_OP_H_ |
17 | #define TENSORFLOW_CORE_KERNELS_RANDOM_OP_H_ |
18 | |
19 | #include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor" |
20 | #include "tensorflow/core/lib/random/random_distributions.h" |
21 | |
22 | namespace tensorflow { |
23 | |
24 | class OpKernelContext; |
25 | |
26 | namespace functor { |
27 | |
28 | template <typename Device, class Distribution> |
29 | struct FillPhiloxRandom; |
30 | |
31 | typedef Eigen::ThreadPoolDevice CPUDevice; |
32 | // Declares the partially CPU-specialized functor struct. |
33 | // |
34 | // NOTE: Due to inlining done by the compiler, you may need to add |
35 | // explicit instantiation of the functor in random_op.cc. See example |
36 | // functor::FillPhiloxRandom<CPUDevice, random::UniformDistribution>. |
37 | // |
38 | // This functor can take the PhiloxRandom input from either device memory `key` |
39 | // and `counter` or a stack value `gen`. If both `key` and `counter` are not |
40 | // nullptr, they provide the input; otherwise `gen` provides the input. |
41 | template <class Distribution> |
42 | struct FillPhiloxRandom<CPUDevice, Distribution> { |
43 | void operator()(OpKernelContext* ctx, const CPUDevice& d, const uint64* key, |
44 | const uint64* counter, random::PhiloxRandom gen, |
45 | typename Distribution::ResultElementType* data, int64_t size, |
46 | Distribution dist); |
47 | }; |
48 | |
49 | #if GOOGLE_CUDA || TENSORFLOW_USE_ROCM |
50 | typedef Eigen::GpuDevice GPUDevice; |
51 | // Declares the partially GPU-specialized functor struct. |
52 | template <class Distribution> |
53 | struct FillPhiloxRandom<GPUDevice, Distribution> { |
54 | void operator()(OpKernelContext* ctx, const GPUDevice& d, const uint64* key, |
55 | const uint64* counter, random::PhiloxRandom gen, |
56 | typename Distribution::ResultElementType* data, int64_t size, |
57 | Distribution dist); |
58 | }; |
59 | #endif // GOOGLE_CUDA || TENSORFLOW_USE_ROCM |
60 | |
61 | } // namespace functor |
62 | } // namespace tensorflow |
63 | |
64 | #endif // TENSORFLOW_CORE_KERNELS_RANDOM_OP_H_ |
65 | |