1 /* Copyright 2018 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 #ifndef TENSORFLOW_CORE_COMMON_RUNTIME_DEVICE_RESOLVER_LOCAL_H_ 16 #define TENSORFLOW_CORE_COMMON_RUNTIME_DEVICE_RESOLVER_LOCAL_H_ 17 18 #include <string> 19 #include <vector> 20 21 #include "tensorflow/core/framework/collective.h" 22 #include "tensorflow/core/framework/device_attributes.pb.h" 23 #include "tensorflow/core/platform/status.h" 24 25 namespace tensorflow { 26 class DeviceMgr; 27 28 // Implements DeviceResolverInterface in a single-task context. 29 class DeviceResolverLocal : public DeviceResolverInterface { 30 public: DeviceResolverLocal(const DeviceMgr * dev_mgr)31 explicit DeviceResolverLocal(const DeviceMgr* dev_mgr) : dev_mgr_(dev_mgr) {} 32 33 Status GetDeviceAttributes(const string& device, 34 DeviceAttributes* attributes) override; 35 36 Status GetAllDeviceAttributes( 37 const string& task, std::vector<DeviceAttributes>* attributes) override; 38 39 Status UpdateDeviceAttributes( 40 const std::vector<DeviceAttributes>& attributes) override; 41 42 protected: 43 const DeviceMgr* dev_mgr_; 44 }; 45 46 } // namespace tensorflow 47 #endif // TENSORFLOW_CORE_COMMON_RUNTIME_DEVICE_RESOLVER_LOCAL_H_ 48