Yang Yang
8 years ago
commit
0009a30f12
@ -1,59 +0,0 @@
|
||||
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
|
||||
|
||||
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. */
|
||||
|
||||
#include "paddle/platform/device.h"
|
||||
|
||||
namespace paddle {
|
||||
namespace platform {
|
||||
|
||||
template <typename T, typename... Args>
|
||||
std::unique_ptr<T> make_unique(Args&&... args) {
|
||||
return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
|
||||
}
|
||||
|
||||
CPUDeviceContext* GetCPUDeviceContext(const CPUPlace& place) {
|
||||
static std::unique_ptr<CPUDeviceContext> g_cpu_device_context =
|
||||
make_unique<CPUDeviceContext>(place);
|
||||
return g_cpu_device_context.get();
|
||||
}
|
||||
|
||||
#ifndef PADDLE_ONLY_CPU
|
||||
CUDADeviceContext* GetCUDADeviceContext(const GPUPlace& place) {
|
||||
static std::unique_ptr<CUDADeviceContext> g_cuda_device_context =
|
||||
make_unique<CUDADeviceContext>(place);
|
||||
return g_cuda_device_context.get();
|
||||
}
|
||||
#endif
|
||||
|
||||
Device* GetDevice(const Place& place) {
|
||||
CPUPlace cpu_place;
|
||||
#ifndef PADDLE_ONLY_CPU
|
||||
if (is_gpu_place(place)) {
|
||||
GPUPlace gpu_place = boost::get<GPUPlace>(place);
|
||||
static std::unique_ptr<Device> g_device = make_unique<Device>(
|
||||
GetCPUDeviceContext(cpu_place), GetCUDADeviceContext(gpu_place));
|
||||
return g_device.get();
|
||||
} else {
|
||||
static std::unique_ptr<Device> g_device =
|
||||
make_unique<Device>(GetCPUDeviceContext(cpu_place), nullptr);
|
||||
return g_device.get();
|
||||
}
|
||||
#else
|
||||
static std::unique_ptr<Device> g_device =
|
||||
make_unique<Device>(GetCPUDeviceContext(cpu_place));
|
||||
return g_device.get();
|
||||
#endif
|
||||
}
|
||||
} // namespace platform
|
||||
} // namespace paddle
|
||||
@ -0,0 +1,68 @@
|
||||
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
|
||||
|
||||
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. */
|
||||
|
||||
#include "paddle/platform/device_context_manager.h"
|
||||
|
||||
namespace paddle {
|
||||
namespace platform {
|
||||
|
||||
DeviceContextManager::DeviceContextManager() {
|
||||
#ifndef PADDLE_ONLY_CPU
|
||||
device_count_ = GetDeviceCount();
|
||||
cuda_contexts_.reserve(device_count_);
|
||||
for (int i = 0; i < device_count_; i++) {
|
||||
cuda_contexts_[i] = nullptr;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
template <>
|
||||
CPUDeviceContext* DeviceContextManager::GetDeviceContext<
|
||||
CPUPlace, CPUDeviceContext>(const CPUPlace& place) {
|
||||
if (!cpu_context_) {
|
||||
cpu_context_ = new CPUDeviceContext(place);
|
||||
}
|
||||
return cpu_context_;
|
||||
}
|
||||
|
||||
#ifndef PADDLE_ONLY_CPU
|
||||
template <>
|
||||
CUDADeviceContext* DeviceContextManager::GetDeviceContext<
|
||||
GPUPlace, CUDADeviceContext>(const GPUPlace& place) {
|
||||
int gpu_id = place.device;
|
||||
PADDLE_ENFORCE(gpu_id < device_count_,
|
||||
"GPU device id must less than device count");
|
||||
SetDeviceId(gpu_id);
|
||||
if (!cuda_contexts_[gpu_id]) {
|
||||
cuda_contexts_[gpu_id] = new CUDADeviceContext(place);
|
||||
}
|
||||
return cuda_contexts_[gpu_id];
|
||||
}
|
||||
#endif
|
||||
|
||||
DeviceContextManager::~DeviceContextManager() {
|
||||
if (cpu_context_) {
|
||||
delete cpu_context_;
|
||||
}
|
||||
#ifndef PADDLE_ONLY_CPU
|
||||
for (int i = 0; i < device_count_; i++) {
|
||||
if (cuda_contexts_[i]) {
|
||||
delete cuda_contexts_[i];
|
||||
}
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
} // namespace platform
|
||||
} // namespace paddle
|
||||
Loading…
Reference in new issue