1 /* Copyright 2021 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_TFRT_EAGER_VIRTUAL_DEVICE_H_ 16 #define TENSORFLOW_CORE_TFRT_EAGER_VIRTUAL_DEVICE_H_ 17 18 #include "tfrt/host_context/device.h" // from @tf_runtime 19 20 namespace tfrt { 21 22 // This device is for the use cases that a `Device` is not mapped to a physical 23 // device. 24 class VirtualDevice : public Device, public DeviceTraits<VirtualDevice> { 25 public: type_name()26 static const char* type_name() { 27 static constexpr char kName[] = "virtual"; 28 return kName; 29 } 30 VirtualDevice(string_view name)31 explicit VirtualDevice(string_view name) : Device(kDeviceType, name) {} 32 33 ~VirtualDevice() override = default; 34 }; 35 36 } // namespace tfrt 37 38 #endif // TENSORFLOW_CORE_TFRT_EAGER_VIRTUAL_DEVICE_H_ 39