1/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
2
3Licensed under the Apache License, Version 2.0 (the "License");
4you may not use this file except in compliance with the License.
5You may obtain a copy of the License at
6
7 http://www.apache.org/licenses/LICENSE-2.0
8
9Unless required by applicable law or agreed to in writing, software
10distributed under the License is distributed on an "AS IS" BASIS,
11WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12See the License for the specific language governing permissions and
13limitations 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
25namespace tensorflow {
26class DeviceMgr;
27
28// Implements DeviceResolverInterface in a single-task context.
29class DeviceResolverLocal : public DeviceResolverInterface {
30 public:
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