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体验新版 GitCode,发现更多精彩内容 >>
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d3b77a5b
编写于
6月 29, 2017
作者:
L
liaogang
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电子邮件补丁
差异文件
ENH: Add Gpu info
上级
0e6ddcc7
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2
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2 changed file
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+85
-0
paddle/platform/gpu_info.cc
paddle/platform/gpu_info.cc
+49
-0
paddle/platform/gpu_info.h
paddle/platform/gpu_info.h
+36
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未找到文件。
paddle/platform/gpu_info.cc
0 → 100644
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d3b77a5b
/* 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/gpu_info.h"
#include "gflags/gflags.h"
#include "paddle/platform/error.h"
DEFINE_double
(
fraction_of_gpu_memory_to_use
,
0.95
,
"Default use 95% of GPU memory for PaddlePaddle,"
"reserve the rest for page tables, etc"
);
namespace
paddle
{
namespace
platform
{
int
GpuDeviceCount
()
{
int
count
;
throw_on_error
(
cudaGetDeviceCount
(
&
count
),
"cudaGetDeviceCount failed in paddle::platform::GpuDeviceCount"
);
return
count
;
}
void
GpuMemoryUsage
(
size_t
&
available
,
size_t
&
total
)
{
throw_on_error
(
cudaMemGetInfo
(
&
available
,
&
total
),
"cudaMemGetInfo failed in paddle::platform::GetMemoryUsage"
);
}
size_t
GpuMaxAllocSize
()
{
size_t
total
=
0
;
size_t
available
=
0
;
GpuMemoryUsage
(
available
,
total
);
return
total
*
FLAGS_fraction_of_gpu_memory_to_use
;
}
}
// namespace platform
}
// namespace paddle
paddle/platform/gpu_info.h
0 → 100644
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d3b77a5b
/* 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. */
#pragma once
#ifndef PADDLE_ONLY_CPU
#include <stddef.h>
namespace
paddle
{
namespace
platform
{
//! Get the total number of GPU devices in system.
int
GpuDeviceCount
();
//!Get the memory usage of current GPU device.
void
GpuMemoryUsage
(
size_t
&
available
,
size_t
&
total
);
//! Get the maximum allocation size of current GPU device.
size_t
GpuMaxAllocSize
();
}
// namespace platform
}
// namespace paddle
#endif // PADDLE_ONLY_CPU
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