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 | #define EIGEN_USE_THREADS |
17 | |
18 | #include "tensorflow/core/common_runtime/renamed_device.h" |
19 | |
20 | #include "absl/memory/memory.h" |
21 | #include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor" |
22 | #include "tensorflow/core/lib/core/threadpool.h" |
23 | |
24 | namespace tensorflow { |
25 | |
26 | /* static */ |
27 | std::unique_ptr<Device> RenamedDevice::NewRenamedDevice( |
28 | const string& new_base, Device* underlying, bool owns_underlying, |
29 | bool isolate_session_state, |
30 | thread::ThreadPoolInterface* underlying_threadpool) { |
31 | DeviceNameUtils::ParsedName parsed_name; |
32 | CHECK(DeviceNameUtils::ParseFullName(new_base, &parsed_name)); |
33 | DeviceNameUtils::ParsedName underlying_parsed_name = |
34 | underlying->parsed_name(); |
35 | CHECK(underlying_parsed_name.has_type); |
36 | CHECK(underlying_parsed_name.has_id); |
37 | parsed_name.type = underlying_parsed_name.type; |
38 | parsed_name.id = underlying_parsed_name.id; |
39 | string name = DeviceNameUtils::FullName(parsed_name.job, parsed_name.replica, |
40 | parsed_name.task, parsed_name.type, |
41 | parsed_name.id); |
42 | DeviceAttributes attributes(underlying->attributes()); |
43 | attributes.set_name(name); |
44 | // Call absl::WrapUnique to access private constructor. |
45 | return absl::WrapUnique( |
46 | new RenamedDevice(underlying, attributes, owns_underlying, |
47 | isolate_session_state, underlying_threadpool)); |
48 | } |
49 | |
50 | RenamedDevice::RenamedDevice(Device* underlying, |
51 | const DeviceAttributes& attributes, |
52 | bool owns_underlying_device, |
53 | bool isolate_session_state, |
54 | thread::ThreadPoolInterface* underlying_threadpool) |
55 | : Device(underlying->env(), attributes), |
56 | underlying_device_(underlying), |
57 | owns_underlying_device_(owns_underlying_device), |
58 | isolate_session_state_(isolate_session_state) { |
59 | if (underlying_threadpool != nullptr) { |
60 | underlying_threadpool_.reset(new thread::ThreadPool(underlying_threadpool)); |
61 | eigen_worker_threads_.workers = underlying_threadpool_.get(); |
62 | eigen_worker_threads_.num_threads = underlying_threadpool->NumThreads(); |
63 | set_tensorflow_cpu_worker_threads(&eigen_worker_threads_); |
64 | set_tensorflow_device_thread_pool(underlying_threadpool_.get()); |
65 | |
66 | Eigen::ThreadPoolDevice eigen_threadpool_device( |
67 | underlying_threadpool, underlying_threadpool->NumThreads()); |
68 | set_eigen_cpu_device(&eigen_threadpool_device); |
69 | } |
70 | } |
71 | |
72 | RenamedDevice::~RenamedDevice() { |
73 | if (owns_underlying_device_) { |
74 | delete underlying_device_; |
75 | } |
76 | } |
77 | |
78 | } // namespace tensorflow |
79 | |