| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| #ifndef SRC_MODEL_LAYER_CUDNN_DROPOUT_H_ |
| #define SRC_MODEL_LAYER_CUDNN_DROPOUT_H_ |
| #include "singa/singa_config.h" |
| #ifdef USE_CUDNN |
| #include <cudnn.h> |
| // cudnn dropout is added in cudnn 5 |
| #if CUDNN_MAJOR >= 5 |
| #include "./dropout.h" |
| |
| #include <cudnn.h> |
| #include <utility> |
| #include <string> |
| #include <vector> |
| |
| #include "singa/model/layer.h" |
| |
| namespace singa { |
| class CudnnDropout : public Dropout { |
| public: |
| ~CudnnDropout(); |
| /// \copydoc Layer::layer_type() |
| // const std::string layer_type() const override { return "CudnnDropout"; } |
| |
| const Tensor Forward(int flag, const Tensor& input) override; |
| const std::pair<Tensor, vector<Tensor>> Backward(int flag, |
| const Tensor& grad) override; |
| |
| void ToDevice(std::shared_ptr<Device> device) override; |
| private: |
| /// Init cudnn related data structures. |
| void InitCudnn(int size, DataType dtype, std::shared_ptr<Device> dev, |
| Context* ctx); |
| |
| private: |
| bool has_init_cudnn_ = false; |
| cudnnDropoutDescriptor_t drop_desc_ = nullptr; |
| cudnnTensorDescriptor_t x_desc_ = nullptr, y_desc_ = nullptr; |
| size_t state_size_, reserve_size_; |
| Tensor state_; |
| }; |
| } // namespace |
| #endif // CUDNN_MAJOR>=5 |
| #endif // USE_CUDNN |
| #endif // SRC_MODEL_LAYER_CUDNN_DROPOUT_H_ |