You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.5 KiB
84 lines
2.5 KiB
/* 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/memory/memory.h"
|
|
#include "paddle/memory/detail/buddy_allocator.h"
|
|
#include "paddle/memory/detail/system_allocator.h"
|
|
#include "paddle/platform/assert.h"
|
|
|
|
namespace paddle {
|
|
namespace memory {
|
|
|
|
detail::BuddyAllocator* GetCPUBuddyAllocator() {
|
|
static detail::BuddyAllocator* a = nullptr;
|
|
if (a == nullptr) {
|
|
a = new detail::BuddyAllocator(new detail::CPUAllocator,
|
|
platform::CpuMinChunkSize(),
|
|
platform::CpuMaxChunkSize());
|
|
}
|
|
return a;
|
|
}
|
|
|
|
template <>
|
|
void* Alloc<platform::CPUPlace>(platform::CPUPlace place, size_t size) {
|
|
return GetCPUBuddyAllocator()->Alloc(size);
|
|
}
|
|
|
|
template <>
|
|
void Free<platform::CPUPlace>(platform::CPUPlace place, void* p) {
|
|
GetCPUBuddyAllocator()->Free(p);
|
|
}
|
|
|
|
template <>
|
|
size_t Used<platform::CPUPlace>(platform::CPUPlace place) {
|
|
return GetCPUBuddyAllocator()->Used();
|
|
}
|
|
|
|
#ifndef PADDLE_ONLY_CPU
|
|
|
|
detail::BuddyAllocator* GetGPUBuddyAllocator(int gpu_id) {
|
|
static detail::BuddyAllocator** as = NULL;
|
|
if (as == NULL) {
|
|
int gpu_num = platform::GetDeviceCount();
|
|
as = new detail::BuddyAllocator*[gpu_num];
|
|
for (int gpu = 0; gpu < gpu_num; gpu++) {
|
|
platform::SetDeviceId(gpu);
|
|
as[gpu] = new detail::BuddyAllocator(new detail::GPUAllocator,
|
|
platform::GpuMinChunkSize(),
|
|
platform::GpuMaxChunkSize());
|
|
}
|
|
}
|
|
return as[gpu_id];
|
|
}
|
|
|
|
template <>
|
|
void* Alloc<platform::GPUPlace>(platform::GPUPlace place, size_t size) {
|
|
return GetGPUBuddyAllocator(place.device)->Alloc(size);
|
|
}
|
|
|
|
template <>
|
|
void Free<platform::GPUPlace>(platform::GPUPlace place, void* p) {
|
|
GetGPUBuddyAllocator(place.device)->Free(p);
|
|
}
|
|
|
|
template <>
|
|
size_t Used<platform::GPUPlace>(platform::GPUPlace place) {
|
|
return GetGPUBuddyAllocator(place.device)->Used();
|
|
}
|
|
|
|
#endif // PADDLE_ONLY_CPU
|
|
|
|
} // namespace memory
|
|
} // namespace paddle
|