| /* Copyright 2020 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_COMMON_RUNTIME_PLUGGABLE_DEVICE_PLUGGABLE_DEVICE_FACTORY_H_ |
| #define TENSORFLOW_CORE_COMMON_RUNTIME_PLUGGABLE_DEVICE_PLUGGABLE_DEVICE_FACTORY_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| #include "tensorflow/core/common_runtime/device/device_id.h" |
| #include "tensorflow/core/common_runtime/device_factory.h" |
| #include "tensorflow/core/framework/device_attributes.pb.h" |
| #include "tensorflow/core/public/session_options.h" |
| |
| namespace tensorflow { |
| class PluggableDeviceFactory : public DeviceFactory { |
| public: |
| PluggableDeviceFactory(const string& device_type, |
| const string& platform_name); |
| Status ListPhysicalDevices(std::vector<string>* devices) override; |
| Status CreateDevices(const SessionOptions& options, |
| const std::string& name_prefix, |
| std::vector<std::unique_ptr<Device>>* devices) override; |
| Status GetDeviceDetails(int device_index, |
| std::unordered_map<string, string>* details) override; |
| |
| private: |
| // Populates *device_localities with the DeviceLocality descriptor for |
| // every TfDeviceId. |
| Status GetDeviceLocalities(int num_tf_devices, |
| std::vector<DeviceLocality>* device_localities); |
| // Create a PluggableDevice associated with 'tf_device_id', allocates |
| // (strictly) 'memory_limit' bytes of PluggableDevice memory to it, and adds |
| // it to the 'devices' vector. |
| Status CreatePluggableDevice(const SessionOptions& options, |
| const std::string& name_prefix, |
| TfDeviceId tf_device_id, int64 memory_limit, |
| const DeviceLocality& dev_locality, |
| std::vector<std::unique_ptr<Device>>* devices); |
| |
| const string device_type_; |
| const string platform_name_; |
| ; |
| }; |
| |
| } // namespace tensorflow |
| #endif // TENSORFLOW_CORE_COMMON_RUNTIME_PLUGGABLE_DEVICE_PLUGGABLE_DEVICE_FACTORY_H_ |