1 | /* Copyright 2015 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 | |
16 | #include "tensorflow/core/framework/device.h" |
17 | |
18 | #include "tensorflow/core/framework/device_factory.h" |
19 | #include "tensorflow/core/framework/op_segment.h" |
20 | #include "tensorflow/core/platform/errors.h" |
21 | #include "tensorflow/core/platform/logging.h" |
22 | #include "tensorflow/core/platform/random.h" |
23 | #include "tensorflow/core/platform/types.h" |
24 | |
25 | namespace tensorflow { |
26 | |
27 | Device::Device(Env* env, const DeviceAttributes& device_attributes) |
28 | : DeviceBase(env), device_attributes_(device_attributes) { |
29 | CHECK(DeviceNameUtils::ParseFullName(name(), &parsed_name_)) |
30 | << "Invalid device name: " << name(); |
31 | rmgr_ = new ResourceMgr(parsed_name_.job); |
32 | } |
33 | |
34 | Device::~Device() { |
35 | if (rmgr_ != nullptr) { |
36 | DeleteResourceMgr(); |
37 | } |
38 | } |
39 | |
40 | void Device::Sync(const DoneCallback& done) { done(Sync()); } |
41 | |
42 | // static |
43 | DeviceAttributes Device::BuildDeviceAttributes( |
44 | const string& name, DeviceType device, Bytes memory_limit, |
45 | const DeviceLocality& locality, const string& physical_device_desc) { |
46 | DeviceAttributes da; |
47 | da.set_name(name); |
48 | do { |
49 | da.set_incarnation(random::New64()); |
50 | } while (da.incarnation() == 0); // This proto field must not be zero |
51 | da.set_device_type(device.type()); |
52 | da.set_memory_limit(memory_limit.value()); |
53 | *da.mutable_locality() = locality; |
54 | da.set_physical_device_desc(physical_device_desc); |
55 | da.set_xla_global_id(-1); // Unknown / not set |
56 | return da; |
57 | } |
58 | |
59 | bool Device::IsRemoteCallAllowed() const { |
60 | auto& type = parsed_name_.type; |
61 | if (type == "TPU" ) { |
62 | return true; |
63 | } |
64 | if (type == "TPU_SYSTEM" ) { |
65 | return true; |
66 | } |
67 | if (type == "CPU" ) { |
68 | return true; |
69 | } |
70 | if (type == "GPU" ) { |
71 | return true; |
72 | } |
73 | if (DeviceFactory::IsPluggableDevice(type)) { |
74 | return true; |
75 | } |
76 | return false; |
77 | } |
78 | |
79 | } // namespace tensorflow |
80 | |