| /* Copyright 2018 The TensorFlow 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. |
| ==============================================================================*/ |
| |
| #ifndef TENSORFLOW_CORE_GRAPPLER_OPTIMIZERS_DATA_MAP_PARALLELIZATION_H_ |
| #define TENSORFLOW_CORE_GRAPPLER_OPTIMIZERS_DATA_MAP_PARALLELIZATION_H_ |
| |
| #include "tensorflow/core/grappler/optimizers/custom_graph_optimizer.h" |
| |
| namespace tensorflow { |
| namespace grappler { |
| |
| // This optimization parallelizes MapDataset when function is stateless. |
| class MapParallelization : public CustomGraphOptimizer { |
| public: |
| MapParallelization() = default; |
| ~MapParallelization() override = default; |
| |
| string name() const override { return "map_parallelization"; }; |
| |
| Status Init( |
| const tensorflow::RewriterConfig_CustomGraphOptimizer* config) override { |
| return Status::OK(); |
| } |
| |
| Status Optimize(Cluster* cluster, const GrapplerItem& item, |
| GraphDef* output) override; |
| |
| void Feedback(Cluster* cluster, const GrapplerItem& item, |
| const GraphDef& optimize_output, double result) override; |
| }; |
| |
| } // end namespace grappler |
| } // end namespace tensorflow |
| |
| #endif // TENSORFLOW_CORE_GRAPPLER_OPTIMIZERS_DATA_MAP_PARALLELIZATION_H_ |