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体验新版 GitCode,发现更多精彩内容 >>
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c14305f0
编写于
4月 04, 2018
作者:
C
chengduo
提交者:
GitHub
4月 04, 2018
浏览文件
操作
浏览文件
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差异文件
Merge pull request #9380 from chengduoZH/feature/add_CUDAPinnedPlace
Add CUDAPinnedPlace
上级
d40096ca
51c22fe4
变更
18
显示空白变更内容
内联
并排
Showing
18 changed file
with
479 addition
and
113 deletion
+479
-113
paddle/fluid/framework/tensor.h
paddle/fluid/framework/tensor.h
+10
-22
paddle/fluid/framework/tensor_impl.h
paddle/fluid/framework/tensor_impl.h
+9
-14
paddle/fluid/framework/tensor_util.cc
paddle/fluid/framework/tensor_util.cc
+5
-0
paddle/fluid/memory/CMakeLists.txt
paddle/fluid/memory/CMakeLists.txt
+12
-8
paddle/fluid/memory/detail/system_allocator.cc
paddle/fluid/memory/detail/system_allocator.cc
+21
-10
paddle/fluid/memory/detail/system_allocator.h
paddle/fluid/memory/detail/system_allocator.h
+4
-5
paddle/fluid/memory/memcpy.cc
paddle/fluid/memory/memcpy.cc
+39
-0
paddle/fluid/memory/memory.cc
paddle/fluid/memory/memory.cc
+46
-45
paddle/fluid/memory/memory.h
paddle/fluid/memory/memory.h
+5
-6
paddle/fluid/memory/memory_test.cc
paddle/fluid/memory/memory_test.cc
+55
-0
paddle/fluid/memory/pinned_memory_test.cu
paddle/fluid/memory/pinned_memory_test.cu
+147
-0
paddle/fluid/operators/math/math_function.cc
paddle/fluid/operators/math/math_function.cc
+8
-0
paddle/fluid/platform/cpu_info.cc
paddle/fluid/platform/cpu_info.cc
+22
-0
paddle/fluid/platform/cpu_info.h
paddle/fluid/platform/cpu_info.h
+9
-0
paddle/fluid/platform/device_context.cc
paddle/fluid/platform/device_context.cc
+24
-0
paddle/fluid/platform/device_context.h
paddle/fluid/platform/device_context.h
+19
-0
paddle/fluid/platform/place.cc
paddle/fluid/platform/place.cc
+10
-2
paddle/fluid/platform/place.h
paddle/fluid/platform/place.h
+34
-1
未找到文件。
paddle/fluid/framework/tensor.h
浏览文件 @
c14305f0
...
...
@@ -45,11 +45,10 @@ class Tensor {
friend
struct
EigenVector
;
public:
Tensor
()
:
offset_
(
0
)
,
is_pinned_
(
false
)
{}
Tensor
()
:
offset_
(
0
)
{}
/*! Constructor with place should only be used in pybind. */
explicit
Tensor
(
const
platform
::
Place
&
place
)
:
offset_
(
0
),
is_pinned_
(
false
)
{
explicit
Tensor
(
const
platform
::
Place
&
place
)
:
offset_
(
0
)
{
holder_
->
set_place
(
place
);
}
...
...
@@ -70,12 +69,11 @@ class Tensor {
* @note If not exist, then allocation.
*/
template
<
typename
T
>
inline
T
*
mutable_data
(
platform
::
Place
place
,
bool
is_pinned
=
false
);
inline
T
*
mutable_data
(
platform
::
Place
place
);
inline
void
*
mutable_data
(
platform
::
Place
place
,
std
::
type_index
type
,
bool
is_pinned
=
false
);
inline
void
*
mutable_data
(
platform
::
Place
place
,
std
::
type_index
type
);
inline
void
*
mutable_data
(
platform
::
Place
place
,
bool
is_pinned
=
false
);
inline
void
*
mutable_data
(
platform
::
Place
place
);
/**
* @brief Return a pointer to mutable memory block.
...
...
@@ -86,8 +84,7 @@ class Tensor {
* @note If not exist, then allocation.
*/
template
<
typename
T
>
inline
T
*
mutable_data
(
DDim
dims
,
platform
::
Place
place
,
bool
is_pinned
=
false
);
inline
T
*
mutable_data
(
DDim
dims
,
platform
::
Place
place
);
/*! Return the dimensions of the memory block. */
inline
const
DDim
&
dims
()
const
;
...
...
@@ -95,9 +92,6 @@ class Tensor {
/*! Return the numel of the memory block. */
inline
int64_t
numel
()
const
;
/*! Return the numel of the memory block. */
inline
bool
isPinned
()
const
;
/*! Resize the dimensions of the memory block. */
inline
Tensor
&
Resize
(
const
DDim
&
dims
);
...
...
@@ -152,14 +146,12 @@ class Tensor {
template
<
typename
Place
>
struct
PlaceholderImpl
:
public
Placeholder
{
PlaceholderImpl
(
Place
place
,
size_t
size
,
std
::
type_index
type
,
bool
is_pinned
=
false
)
:
ptr_
(
static_cast
<
uint8_t
*>
(
memory
::
Alloc
(
place
,
size
,
is_pinned
)),
memory
::
PODDeleter
<
uint8_t
,
Place
>
(
place
,
is_pinned
)),
PlaceholderImpl
(
Place
place
,
size_t
size
,
std
::
type_index
type
)
:
ptr_
(
static_cast
<
uint8_t
*>
(
memory
::
Alloc
(
place
,
size
)),
memory
::
PODDeleter
<
uint8_t
,
Place
>
(
place
)),
place_
(
place
),
size_
(
size
),
type_
(
type
),
is_pinned_
(
is_pinned
)
{
type_
(
type
)
{
PADDLE_ENFORCE_NOT_NULL
(
ptr_
,
"Insufficient %s memory to allocation."
,
(
is_cpu_place
(
place_
)
?
"CPU"
:
"GPU"
));
}
...
...
@@ -182,9 +174,6 @@ class Tensor {
/* the current type of memory */
std
::
type_index
type_
;
/*! use pinned memory or not. */
bool
is_pinned_
;
};
/*! holds the memory block if allocated. */
...
...
@@ -219,7 +208,6 @@ class Tensor {
* PlaceHolder::ptr_ and where the tensor data really begins.
*/
size_t
offset_
;
bool
is_pinned_
;
};
inline
void
Tensor
::
switch_place
(
platform
::
Place
new_place
)
{
...
...
paddle/fluid/framework/tensor_impl.h
浏览文件 @
c14305f0
...
...
@@ -101,21 +101,19 @@ inline T* Tensor::data() {
}
template
<
typename
T
>
inline
T
*
Tensor
::
mutable_data
(
DDim
dims
,
platform
::
Place
place
,
bool
is_pinned
)
{
inline
T
*
Tensor
::
mutable_data
(
DDim
dims
,
platform
::
Place
place
)
{
static_assert
(
std
::
is_pod
<
T
>::
value
,
"T must be POD"
);
Resize
(
dims
);
return
mutable_data
<
T
>
(
place
,
is_pinned
);
return
mutable_data
<
T
>
(
place
);
}
template
<
typename
T
>
inline
T
*
Tensor
::
mutable_data
(
platform
::
Place
place
,
bool
is_pinned
)
{
inline
T
*
Tensor
::
mutable_data
(
platform
::
Place
place
)
{
static_assert
(
std
::
is_pod
<
T
>::
value
,
"T must be POD"
);
return
reinterpret_cast
<
T
*>
(
mutable_data
(
place
,
typeid
(
T
)
,
is_pinned
));
return
reinterpret_cast
<
T
*>
(
mutable_data
(
place
,
typeid
(
T
)));
}
inline
void
*
Tensor
::
mutable_data
(
platform
::
Place
place
,
std
::
type_index
type
,
bool
is_pinned
)
{
inline
void
*
Tensor
::
mutable_data
(
platform
::
Place
place
,
std
::
type_index
type
)
{
if
(
holder_
!=
nullptr
)
{
holder_
->
set_type
(
type
);
}
...
...
@@ -129,27 +127,26 @@ inline void* Tensor::mutable_data(platform::Place place, std::type_index type,
holder_
->
size
()
<
size
+
offset_
)
{
if
(
platform
::
is_cpu_place
(
place
))
{
holder_
.
reset
(
new
PlaceholderImpl
<
platform
::
CPUPlace
>
(
boost
::
get
<
platform
::
CPUPlace
>
(
place
),
size
,
type
,
is_pinned
));
boost
::
get
<
platform
::
CPUPlace
>
(
place
),
size
,
type
));
}
else
if
(
platform
::
is_gpu_place
(
place
))
{
#ifndef PADDLE_WITH_CUDA
PADDLE_THROW
(
"'CUDAPlace' is not supported in CPU only device."
);
}
#else
holder_
.
reset
(
new
PlaceholderImpl
<
platform
::
CUDAPlace
>
(
boost
::
get
<
platform
::
CUDAPlace
>
(
place
),
size
,
type
,
is_pinned
));
boost
::
get
<
platform
::
CUDAPlace
>
(
place
),
size
,
type
));
}
#endif
offset_
=
0
;
is_pinned_
=
is_pinned
;
}
return
reinterpret_cast
<
void
*>
(
reinterpret_cast
<
uintptr_t
>
(
holder_
->
ptr
())
+
offset_
);
}
inline
void
*
Tensor
::
mutable_data
(
platform
::
Place
place
,
bool
is_pinned
)
{
inline
void
*
Tensor
::
mutable_data
(
platform
::
Place
place
)
{
PADDLE_ENFORCE
(
this
->
holder_
!=
nullptr
,
"Cannot invoke mutable data if current hold nothing"
);
return
mutable_data
(
place
,
holder_
->
type
()
,
is_pinned
);
return
mutable_data
(
place
,
holder_
->
type
());
}
inline
Tensor
&
Tensor
::
ShareDataWith
(
const
Tensor
&
src
)
{
...
...
@@ -191,8 +188,6 @@ inline const DDim& Tensor::dims() const { return dims_; }
inline
int64_t
Tensor
::
numel
()
const
{
return
product
(
dims_
);
}
inline
bool
Tensor
::
isPinned
()
const
{
return
is_pinned_
;
}
inline
Tensor
ReshapeToMatrix
(
const
Tensor
&
src
,
int
num_col_dims
)
{
Tensor
res
;
res
.
ShareDataWith
(
src
);
...
...
paddle/fluid/framework/tensor_util.cc
浏览文件 @
c14305f0
...
...
@@ -148,6 +148,11 @@ struct AnyVisitor : public boost::static_visitor<bool> {
const
platform
::
CPUPlace
&
cpu
)
const
{
return
*
out
.
data
<
bool
>
();
}
bool
GetResult
(
const
framework
::
Tensor
&
out
,
const
platform
::
CUDAPinnedPlace
&
cpu
)
const
{
return
*
out
.
data
<
bool
>
();
}
};
template
<
typename
Predicate
>
...
...
paddle/fluid/memory/CMakeLists.txt
浏览文件 @
c14305f0
...
...
@@ -14,3 +14,7 @@ cc_library(paddle_memory
system_allocator
)
cc_test
(
memory_test SRCS memory_test.cc DEPS place paddle_memory
)
#if (WITH_GPU)
# nv_test(pinned_memory_test SRCS pinned_memory_test.cu DEPS place paddle_memory)
#endif()
paddle/fluid/memory/detail/system_allocator.cc
浏览文件 @
c14305f0
...
...
@@ -14,6 +14,7 @@ limitations under the License. */
#include "paddle/fluid/memory/detail/system_allocator.h"
#include "paddle/fluid/platform/assert.h"
#include "paddle/fluid/platform/cpu_info.h"
#include "paddle/fluid/platform/enforce.h"
#include "paddle/fluid/platform/gpu_info.h"
...
...
@@ -134,21 +135,31 @@ bool GPUAllocator::UseGpu() const { return true; }
// memory. It’s locked to a physical address.
void
*
CUDAPinnedAllocator
::
Alloc
(
size_t
&
index
,
size_t
size
)
{
if
(
size
<=
0
)
return
nullptr
;
void
*
p
;
// NOTE: here, we use
GpuMaxAllocSize()
as the maximum memory size
// NOTE: here, we use
CUDAPinnedMaxAllocSize
as the maximum memory size
// of host pinned allocation. Allocates too much would reduce
// the amount of memory available to the underlying system for paging.
size_t
usable
=
paddle
::
platform
::
CUDAPinnedMaxAllocSize
()
-
cuda_pinnd_alloc_size_
;
size_t
usable
=
paddle
::
platform
::
GpuMaxAllocSize
()
-
fallback_alloc_size_
;
if
(
size
>
usable
)
return
nullptr
;
if
(
size
>
usable
)
{
LOG
(
WARNING
)
<<
"Cannot malloc "
<<
size
/
1024.0
/
1024.0
<<
" MB pinned memory."
<<
", available "
<<
usable
/
1024.0
/
1024.0
<<
" MB"
;
return
nullptr
;
}
void
*
p
;
// PINNED memory is visible to all CUDA contexts.
cudaError_t
result
=
cudaMallocHost
(
&
p
,
size
);
if
(
result
==
cudaSuccess
)
{
index
=
1
;
fallback
_alloc_size_
+=
size
;
index
=
1
;
// PINNED memory
cuda_pinnd
_alloc_size_
+=
size
;
return
p
;
}
else
{
LOG
(
WARNING
)
<<
"cudaMallocHost failed."
;
return
nullptr
;
}
return
nullptr
;
...
...
@@ -158,8 +169,8 @@ void CUDAPinnedAllocator::Free(void* p, size_t size, size_t index) {
cudaError_t
err
;
PADDLE_ASSERT
(
index
==
1
);
PADDLE_ASSERT
(
fallback
_alloc_size_
>=
size
);
fallback
_alloc_size_
-=
size
;
PADDLE_ASSERT
(
cuda_pinnd
_alloc_size_
>=
size
);
cuda_pinnd
_alloc_size_
-=
size
;
err
=
cudaFreeHost
(
p
);
// Purposefully allow cudaErrorCudartUnloading, because
...
...
@@ -172,7 +183,7 @@ void CUDAPinnedAllocator::Free(void* p, size_t size, size_t index) {
}
}
bool
CUDAPinnedAllocator
::
UseGpu
()
const
{
return
tru
e
;
}
bool
CUDAPinnedAllocator
::
UseGpu
()
const
{
return
fals
e
;
}
#endif
...
...
paddle/fluid/memory/detail/system_allocator.h
浏览文件 @
c14305f0
...
...
@@ -21,8 +21,9 @@ namespace memory {
namespace
detail
{
/**
* \brief SystemAllocator is the parent class of CPUAllocator and GPUAllocator.
* A BuddyAllocator object uses a SystemAllocator* pointing to the
* \brief SystemAllocator is the parent class of CPUAllocator,
* CUDAPinnedAllocator and GPUAllocator. A BuddyAllocator
* object uses a SystemAllocator* pointing to the
* underlying system allocator.
*/
class
SystemAllocator
{
...
...
@@ -62,9 +63,7 @@ class CUDAPinnedAllocator : public SystemAllocator {
virtual
bool
UseGpu
()
const
;
private:
size_t
gpu_alloc_size_
=
0
;
// TODO(zcd): how to define the upper limit of CUDAPinnedMemory?
size_t
fallback_alloc_size_
=
0
;
size_t
cuda_pinnd_alloc_size_
=
0
;
};
#endif
...
...
paddle/fluid/memory/memcpy.cc
浏览文件 @
c14305f0
...
...
@@ -56,6 +56,45 @@ void Copy<platform::CUDAPlace, platform::CUDAPlace>(
}
}
template
<
>
void
Copy
<
platform
::
CPUPlace
,
platform
::
CUDAPinnedPlace
>
(
platform
::
CPUPlace
dst_place
,
void
*
dst
,
platform
::
CUDAPinnedPlace
src_place
,
const
void
*
src
,
size_t
num
)
{
std
::
memcpy
(
dst
,
src
,
num
);
}
template
<
>
void
Copy
<
platform
::
CUDAPinnedPlace
,
platform
::
CPUPlace
>
(
platform
::
CUDAPinnedPlace
dst_place
,
void
*
dst
,
platform
::
CPUPlace
src_place
,
const
void
*
src
,
size_t
num
)
{
std
::
memcpy
(
dst
,
src
,
num
);
}
template
<
>
void
Copy
<
platform
::
CUDAPinnedPlace
,
platform
::
CUDAPinnedPlace
>
(
platform
::
CUDAPinnedPlace
dst_place
,
void
*
dst
,
platform
::
CUDAPinnedPlace
src_place
,
const
void
*
src
,
size_t
num
)
{
std
::
memcpy
(
dst
,
src
,
num
);
}
template
<
>
void
Copy
<
platform
::
CUDAPinnedPlace
,
platform
::
CUDAPlace
>
(
platform
::
CUDAPinnedPlace
dst_place
,
void
*
dst
,
platform
::
CUDAPlace
src_place
,
const
void
*
src
,
size_t
num
,
cudaStream_t
stream
)
{
platform
::
SetDeviceId
(
src_place
.
device
);
platform
::
GpuMemcpyAsync
(
dst
,
src
,
num
,
cudaMemcpyDeviceToHost
,
stream
);
}
template
<
>
void
Copy
<
platform
::
CUDAPlace
,
platform
::
CUDAPinnedPlace
>
(
platform
::
CUDAPlace
dst_place
,
void
*
dst
,
platform
::
CUDAPinnedPlace
src_place
,
const
void
*
src
,
size_t
num
,
cudaStream_t
stream
)
{
platform
::
SetDeviceId
(
dst_place
.
device
);
platform
::
GpuMemcpyAsync
(
dst
,
src
,
num
,
cudaMemcpyHostToDevice
,
stream
);
}
#endif
}
// namespace memory
...
...
paddle/fluid/memory/memory.cc
浏览文件 @
c14305f0
...
...
@@ -38,8 +38,7 @@ BuddyAllocator* GetCPUBuddyAllocator() {
}
template
<
>
void
*
Alloc
<
platform
::
CPUPlace
>
(
platform
::
CPUPlace
place
,
size_t
size
,
bool
is_pinned
)
{
void
*
Alloc
<
platform
::
CPUPlace
>
(
platform
::
CPUPlace
place
,
size_t
size
)
{
VLOG
(
10
)
<<
"Allocate "
<<
size
<<
" bytes on "
<<
platform
::
Place
(
place
);
void
*
p
=
GetCPUBuddyAllocator
()
->
Alloc
(
size
);
VLOG
(
10
)
<<
" pointer="
<<
p
;
...
...
@@ -47,8 +46,7 @@ void* Alloc<platform::CPUPlace>(platform::CPUPlace place, size_t size,
}
template
<
>
void
Free
<
platform
::
CPUPlace
>
(
platform
::
CPUPlace
place
,
void
*
p
,
bool
is_pinned
)
{
void
Free
<
platform
::
CPUPlace
>
(
platform
::
CPUPlace
place
,
void
*
p
)
{
VLOG
(
10
)
<<
"Free pointer="
<<
p
<<
" on "
<<
platform
::
Place
(
place
);
GetCPUBuddyAllocator
()
->
Free
(
p
);
}
...
...
@@ -84,47 +82,15 @@ BuddyAllocator* GetGPUBuddyAllocator(int gpu_id) {
return
as
[
gpu_id
];
}
BuddyAllocator
*
GetCUDAPinnedBuddyAllocator
(
int
gpu_id
)
{
static
BuddyAllocator
**
as
=
NULL
;
if
(
as
==
NULL
)
{
int
gpu_num
=
platform
::
GetCUDADeviceCount
();
as
=
new
BuddyAllocator
*
[
gpu_num
];
for
(
int
gpu
=
0
;
gpu
<
gpu_num
;
gpu
++
)
{
as
[
gpu
]
=
nullptr
;
}
}
platform
::
SetDeviceId
(
gpu_id
);
if
(
!
as
[
gpu_id
])
{
as
[
gpu_id
]
=
new
BuddyAllocator
(
new
detail
::
CUDAPinnedAllocator
,
platform
::
GpuMinChunkSize
(),
platform
::
GpuMaxChunkSize
());
VLOG
(
10
)
<<
"
\n\n
NOTE: each GPU device use "
<<
FLAGS_fraction_of_gpu_memory_to_use
*
100
<<
"% of GPU memory.
\n
"
<<
"You can set GFlags environment variable '"
<<
"FLAGS_fraction_of_gpu_memory_to_use"
<<
"' to change the fraction of GPU usage.
\n\n
"
;
}
return
as
[
gpu_id
];
}
template
<
>
size_t
Used
<
platform
::
CUDAPlace
>
(
platform
::
CUDAPlace
place
)
{
return
GetGPUBuddyAllocator
(
place
.
device
)
->
Used
();
}
template
<
>
void
*
Alloc
<
platform
::
CUDAPlace
>
(
platform
::
CUDAPlace
place
,
size_t
size
,
bool
is_pinned
)
{
void
*
ptr
;
if
(
is_pinned
)
{
auto
*
buddy_allocator
=
GetCUDAPinnedBuddyAllocator
(
place
.
device
);
ptr
=
buddy_allocator
->
Alloc
(
size
);
}
else
{
void
*
Alloc
<
platform
::
CUDAPlace
>
(
platform
::
CUDAPlace
place
,
size_t
size
)
{
auto
*
buddy_allocator
=
GetGPUBuddyAllocator
(
place
.
device
);
ptr
=
buddy_allocator
->
Alloc
(
size
);
}
auto
*
ptr
=
buddy_allocator
->
Alloc
(
size
);
if
(
ptr
==
nullptr
)
{
int
cur_dev
=
platform
::
GetCurrentDeviceId
();
platform
::
SetDeviceId
(
place
.
device
);
...
...
@@ -142,15 +108,42 @@ void* Alloc<platform::CUDAPlace>(platform::CUDAPlace place, size_t size,
}
template
<
>
void
Free
<
platform
::
CUDAPlace
>
(
platform
::
CUDAPlace
place
,
void
*
p
,
bool
is_pinned
)
{
if
(
is_pinned
)
{
GetCUDAPinnedBuddyAllocator
(
place
.
device
)
->
Free
(
p
);
}
else
{
void
Free
<
platform
::
CUDAPlace
>
(
platform
::
CUDAPlace
place
,
void
*
p
)
{
GetGPUBuddyAllocator
(
place
.
device
)
->
Free
(
p
);
}
BuddyAllocator
*
GetCUDAPinnedBuddyAllocator
()
{
static
BuddyAllocator
*
ba
=
NULL
;
if
(
ba
==
NULL
)
{
ba
=
new
BuddyAllocator
(
new
detail
::
CUDAPinnedAllocator
,
platform
::
CUDAPinnedMinChunkSize
(),
platform
::
CUDAPinnedMaxChunkSize
());
}
return
ba
;
}
template
<
>
size_t
Used
<
platform
::
CUDAPinnedPlace
>
(
platform
::
CUDAPinnedPlace
place
)
{
return
GetCUDAPinnedBuddyAllocator
()
->
Used
();
}
template
<
>
void
*
Alloc
<
platform
::
CUDAPinnedPlace
>
(
platform
::
CUDAPinnedPlace
place
,
size_t
size
)
{
auto
*
buddy_allocator
=
GetCUDAPinnedBuddyAllocator
();
void
*
ptr
=
buddy_allocator
->
Alloc
(
size
);
if
(
ptr
==
nullptr
)
{
LOG
(
WARNING
)
<<
"cudaMallocHost Cannot allocate "
<<
size
<<
" bytes in CUDAPinnedPlace"
;
}
return
ptr
;
}
template
<
>
void
Free
<
platform
::
CUDAPinnedPlace
>
(
platform
::
CUDAPinnedPlace
place
,
void
*
p
)
{
GetCUDAPinnedBuddyAllocator
()
->
Free
(
p
);
}
#endif
size_t
Usage
::
operator
()(
const
platform
::
CPUPlace
&
cpu
)
const
{
...
...
@@ -165,6 +158,14 @@ size_t Usage::operator()(const platform::CUDAPlace& gpu) const {
#endif
}
size_t
Usage
::
operator
()(
const
platform
::
CUDAPinnedPlace
&
cuda_pinned
)
const
{
#ifdef PADDLE_WITH_CUDA
return
Used
(
cuda_pinned
);
#else
PADDLE_THROW
(
"'CUDAPinnedPlace' is not supported in CPU only device."
);
#endif
}
size_t
memory_usage
(
const
platform
::
Place
&
p
)
{
return
boost
::
apply_visitor
(
Usage
(),
p
);
}
...
...
paddle/fluid/memory/memory.h
浏览文件 @
c14305f0
...
...
@@ -33,7 +33,7 @@ namespace memory {
* address is valid or not.
*/
template
<
typename
Place
>
void
*
Alloc
(
Place
place
,
size_t
size
,
bool
is_pinned
=
false
);
void
*
Alloc
(
Place
place
,
size_t
size
);
/**
* \brief Free memory block in one place.
...
...
@@ -43,7 +43,7 @@ void* Alloc(Place place, size_t size, bool is_pinned = false);
*
*/
template
<
typename
Place
>
void
Free
(
Place
place
,
void
*
ptr
,
bool
is_pinned
=
false
);
void
Free
(
Place
place
,
void
*
ptr
);
/**
* \brief Total size of used memory in one place.
...
...
@@ -57,6 +57,7 @@ size_t Used(Place place);
struct
Usage
:
public
boost
::
static_visitor
<
size_t
>
{
size_t
operator
()(
const
platform
::
CPUPlace
&
cpu
)
const
;
size_t
operator
()(
const
platform
::
CUDAPlace
&
gpu
)
const
;
size_t
operator
()(
const
platform
::
CUDAPinnedPlace
&
cuda_pinned
)
const
;
};
size_t
memory_usage
(
const
platform
::
Place
&
p
);
...
...
@@ -74,13 +75,11 @@ class PODDeleter {
static_assert
(
std
::
is_pod
<
T
>::
value
,
"T must be POD"
);
public:
explicit
PODDeleter
(
Place
place
,
bool
is_pinned
=
false
)
:
place_
(
place
),
is_pinned_
(
is_pinned
)
{}
void
operator
()(
T
*
ptr
)
{
Free
(
place_
,
static_cast
<
void
*>
(
ptr
),
is_pinned_
);
}
explicit
PODDeleter
(
Place
place
)
:
place_
(
place
)
{}
void
operator
()(
T
*
ptr
)
{
Free
(
place_
,
static_cast
<
void
*>
(
ptr
));
}
private:
Place
place_
;
bool
is_pinned_
;
};
/**
...
...
paddle/fluid/memory/memory_test.cc
浏览文件 @
c14305f0
...
...
@@ -141,4 +141,59 @@ TEST(BuddyAllocator, GPUMultAlloc) {
}
}
size_t
align
(
size_t
size
,
paddle
::
platform
::
CUDAPinnedPlace
place
)
{
size
+=
sizeof
(
paddle
::
memory
::
detail
::
Metadata
);
size_t
alignment
=
paddle
::
platform
::
CUDAPinnedMinChunkSize
();
size_t
remaining
=
size
%
alignment
;
return
remaining
==
0
?
size
:
size
+
(
alignment
-
remaining
);
}
TEST
(
BuddyAllocator
,
CUDAPinnedAllocator
)
{
void
*
p
=
nullptr
;
EXPECT_EQ
(
p
,
nullptr
);
paddle
::
platform
::
CUDAPinnedPlace
cpu
;
p
=
paddle
::
memory
::
Alloc
(
cpu
,
4096
);
EXPECT_NE
(
p
,
nullptr
);
paddle
::
platform
::
Place
place
=
cpu
;
EXPECT_EQ
(
paddle
::
memory
::
Used
(
cpu
),
paddle
::
memory
::
memory_usage
(
place
));
paddle
::
memory
::
Free
(
cpu
,
p
);
}
TEST
(
BuddyAllocator
,
CUDAPinnedMultAllocator
)
{
paddle
::
platform
::
CUDAPinnedPlace
cpu
;
std
::
unordered_map
<
void
*
,
size_t
>
ps
;
size_t
total_size
=
paddle
::
memory
::
Used
(
cpu
);
EXPECT_EQ
(
total_size
,
0UL
);
for
(
auto
size
:
{
0
,
128
,
256
,
1024
,
4096
,
16384
,
65536
,
262144
,
1048576
,
4194304
})
{
ps
[
paddle
::
memory
::
Alloc
(
cpu
,
size
)]
=
size
;
// Buddy Allocator doesn't manage too large memory chunk
if
(
paddle
::
memory
::
Used
(
cpu
)
==
total_size
)
continue
;
size_t
aligned_size
=
align
(
size
,
cpu
);
total_size
+=
aligned_size
;
EXPECT_EQ
(
total_size
,
paddle
::
memory
::
Used
(
cpu
));
}
for
(
auto
p
:
ps
)
{
EXPECT_EQ
(
is_aligned
(
p
.
first
),
true
);
paddle
::
memory
::
Free
(
cpu
,
p
.
first
);
// Buddy Allocator doesn't manage too large memory chunk
if
(
paddle
::
memory
::
Used
(
cpu
)
==
total_size
)
continue
;
size_t
aligned_size
=
align
(
p
.
second
,
cpu
);
total_size
-=
aligned_size
;
EXPECT_EQ
(
total_size
,
paddle
::
memory
::
Used
(
cpu
));
}
}
#endif
paddle/fluid/memory/pinned_memory_test.cu
0 → 100644
浏览文件 @
c14305f0
/* Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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 <gtest/gtest.h>
#include <unordered_map>
#include "paddle/fluid/memory/detail/memory_block.h"
#include "paddle/fluid/memory/detail/meta_data.h"
#include "paddle/fluid/memory/memcpy.h"
#include "paddle/fluid/memory/memory.h"
#include "paddle/fluid/platform/cpu_info.h"
#include "paddle/fluid/platform/gpu_info.h"
#include "paddle/fluid/platform/place.h"
// This unit test is an example comparing the performance between using pinned
// memory and not. In general, using pinned memory will be faster.
template
<
typename
T
>
__global__
void
Kernel
(
T
*
output
,
int
dim
)
{
int
tid
=
blockIdx
.
x
*
blockDim
.
x
+
threadIdx
.
x
;
if
(
tid
<
dim
)
{
output
[
tid
]
=
output
[
tid
]
*
output
[
tid
]
/
100
;
}
}
template
<
typename
Place
>
float
test_pinned_memory
()
{
Place
cpu_place
;
paddle
::
platform
::
CUDAPlace
cuda_place
;
const
int
data_size
=
4096
;
const
int
iteration
=
10
;
// create event start and end
cudaEvent_t
start_e
,
stop_e
,
copying_e
;
float
elapsedTime
=
0
;
cudaEventCreate
(
&
start_e
);
cudaEventCreate
(
&
stop_e
);
cudaEventCreate
(
&
copying_e
);
// create computation stream, data copying stream
cudaStream_t
computation_stream
,
copying_stream
;
cudaStreamCreate
(
&
computation_stream
);
cudaStreamCreate
(
&
copying_stream
);
// create record event, pinned memory, gpu memory
std
::
vector
<
cudaEvent_t
>
record_event
(
iteration
);
std
::
vector
<
float
*>
input_pinned_mem
(
iteration
);
std
::
vector
<
float
*>
gpu_mem
(
iteration
);
std
::
vector
<
float
*>
output_pinned_mem
(
iteration
);
// initial data
for
(
int
j
=
0
;
j
<
iteration
;
++
j
)
{
cudaEventCreateWithFlags
(
&
record_event
[
j
],
cudaEventDisableTiming
);
cudaEventCreate
(
&
(
record_event
[
j
]));
input_pinned_mem
[
j
]
=
static_cast
<
float
*>
(
paddle
::
memory
::
Alloc
(
cpu_place
,
data_size
*
sizeof
(
float
)));
output_pinned_mem
[
j
]
=
static_cast
<
float
*>
(
paddle
::
memory
::
Alloc
(
cpu_place
,
data_size
*
sizeof
(
float
)));
gpu_mem
[
j
]
=
static_cast
<
float
*>
(
paddle
::
memory
::
Alloc
(
cuda_place
,
data_size
*
sizeof
(
float
)));
for
(
int
k
=
0
;
k
<
data_size
;
++
k
)
{
input_pinned_mem
[
j
][
k
]
=
k
;
}
}
cudaEventRecord
(
start_e
,
computation_stream
);
// computation
for
(
int
m
=
0
;
m
<
30
;
++
m
)
{
for
(
int
i
=
0
;
i
<
iteration
;
++
i
)
{
// cpu -> GPU on computation stream.
// note: this operation is async for pinned memory.
paddle
::
memory
::
Copy
(
cuda_place
,
gpu_mem
[
i
],
cpu_place
,
input_pinned_mem
[
i
],
data_size
*
sizeof
(
float
),
computation_stream
);
// call kernel on computation stream.
Kernel
<<<
4
,
1024
,
0
,
computation_stream
>>>
(
gpu_mem
[
i
],
data_size
);
// record event_computation on computation stream
cudaEventRecord
(
record_event
[
i
],
computation_stream
);
// wait event_computation on copy stream.
// note: this operation is async.
cudaStreamWaitEvent
(
copying_stream
,
record_event
[
i
],
0
);
// copy data GPU->CPU, on copy stream.
// note: this operation is async for pinned memory.
paddle
::
memory
::
Copy
(
cpu_place
,
output_pinned_mem
[
i
],
cuda_place
,
gpu_mem
[
i
],
data_size
*
sizeof
(
float
),
copying_stream
);
}
}
cudaEventRecord
(
copying_e
,
copying_stream
);
cudaStreamWaitEvent
(
computation_stream
,
copying_e
,
0
);
cudaEventRecord
(
stop_e
,
computation_stream
);
cudaEventSynchronize
(
start_e
);
cudaEventSynchronize
(
stop_e
);
cudaEventElapsedTime
(
&
elapsedTime
,
start_e
,
stop_e
);
// std::cout << cpu_place << " "
// << "time consume:" << elapsedTime / 30 << std::endl;
for
(
int
l
=
0
;
l
<
iteration
;
++
l
)
{
for
(
int
k
=
0
;
k
<
data_size
;
++
k
)
{
float
temp
=
input_pinned_mem
[
l
][
k
];
temp
=
temp
*
temp
/
100
;
EXPECT_FLOAT_EQ
(
temp
,
output_pinned_mem
[
l
][
k
]);
}
}
// destroy resource
cudaEventDestroy
(
copying_e
);
cudaEventDestroy
(
start_e
);
cudaEventDestroy
(
stop_e
);
for
(
int
j
=
0
;
j
<
10
;
++
j
)
{
cudaEventDestroy
((
record_event
[
j
]));
paddle
::
memory
::
Free
(
cpu_place
,
input_pinned_mem
[
j
]);
paddle
::
memory
::
Free
(
cpu_place
,
output_pinned_mem
[
j
]);
paddle
::
memory
::
Free
(
cuda_place
,
gpu_mem
[
j
]);
}
return
elapsedTime
/
30
;
}
TEST
(
CPUANDCUDAPinned
,
CPUAllocatorAndCUDAPinnedAllocator
)
{
// Generally speaking, operation on pinned_memory is faster than that on
// unpinned-memory, but if this unit test fails frequently, please close this
// test for the time being.
float
time1
=
test_pinned_memory
<
paddle
::
platform
::
CPUPlace
>
();
float
time2
=
test_pinned_memory
<
paddle
::
platform
::
CUDAPinnedPlace
>
();
EXPECT_GT
(
time1
,
time2
);
}
paddle/fluid/operators/math/math_function.cc
浏览文件 @
c14305f0
...
...
@@ -322,6 +322,14 @@ void set_constant_with_place<platform::CPUPlace>(
TensorSetConstantCPU
(
tensor
,
value
));
}
template
<
>
void
set_constant_with_place
<
platform
::
CUDAPinnedPlace
>
(
const
platform
::
DeviceContext
&
context
,
framework
::
Tensor
*
tensor
,
float
value
)
{
framework
::
VisitDataType
(
framework
::
ToDataType
(
tensor
->
type
()),
TensorSetConstantCPU
(
tensor
,
value
));
}
struct
TensorSetConstantWithPlace
:
public
boost
::
static_visitor
<
void
>
{
TensorSetConstantWithPlace
(
const
platform
::
DeviceContext
&
context
,
framework
::
Tensor
*
tensor
,
float
value
)
...
...
paddle/fluid/platform/cpu_info.cc
浏览文件 @
c14305f0
...
...
@@ -27,6 +27,11 @@ DEFINE_double(fraction_of_cpu_memory_to_use, 1,
"Default use 100% of CPU memory for PaddlePaddle,"
"reserve the rest for page tables, etc"
);
DEFINE_double
(
fraction_of_cuda_pinned_memory_to_use
,
0.5
,
"Default use 50% of CPU memory as the pinned_memory for PaddlePaddle,"
"reserve the rest for page tables, etc"
);
namespace
paddle
{
namespace
platform
{
...
...
@@ -62,5 +67,22 @@ size_t CpuMaxChunkSize() {
return
CpuMaxAllocSize
()
/
32
;
}
size_t
CUDAPinnedMaxAllocSize
()
{
// For distributed systems, it requires configuring and limiting
// the fraction of memory to use.
return
FLAGS_fraction_of_cuda_pinned_memory_to_use
*
CpuTotalPhysicalMemory
();
}
size_t
CUDAPinnedMinChunkSize
()
{
// Allow to allocate the minimum chunk size is 64 KB.
return
1
<<
16
;
}
size_t
CUDAPinnedMaxChunkSize
()
{
// Allow to allocate the maximum chunk size is roughly 1/256 of CUDA_PINNED
// memory.
return
CUDAPinnedMaxAllocSize
()
/
256
;
}
}
// namespace platform
}
// namespace paddle
paddle/fluid/platform/cpu_info.h
浏览文件 @
c14305f0
...
...
@@ -22,11 +22,20 @@ namespace platform {
//! Get the maximum allocation size for a machine.
size_t
CpuMaxAllocSize
();
//! Get the maximum allocation size for a machine.
size_t
CUDAPinnedMaxAllocSize
();
//! Get the minimum chunk size for buddy allocator.
size_t
CpuMinChunkSize
();
//! Get the maximum chunk size for buddy allocator.
size_t
CpuMaxChunkSize
();
//! Get the minimum chunk size for buddy allocator.
size_t
CUDAPinnedMinChunkSize
();
//! Get the maximum chunk size for buddy allocator.
size_t
CUDAPinnedMaxChunkSize
();
}
// namespace platform
}
// namespace paddle
paddle/fluid/platform/device_context.cc
浏览文件 @
c14305f0
...
...
@@ -53,6 +53,16 @@ DeviceContextPool::DeviceContextPool(
PADDLE_THROW
(
"'CUDAPlace' is not supported, Please re-compile with WITH_GPU "
"option"
);
#endif
}
else
if
(
platform
::
is_cuda_pinned_place
(
p
))
{
#ifdef PADDLE_WITH_CUDA
device_contexts_
.
emplace
(
p
,
PtrType
(
new
CUDAPinnedDeviceContext
(
boost
::
get
<
CUDAPinnedPlace
>
(
p
))));
#else
PADDLE_THROW
(
"'CUDAPlace' is not supported, Please re-compile with WITH_GPU "
"option"
);
#endif
}
}
...
...
@@ -186,6 +196,20 @@ cudnnHandle_t CUDADeviceContext::cudnn_handle() const { return cudnn_handle_; }
cudaStream_t
CUDADeviceContext
::
stream
()
const
{
return
stream_
;
}
CUDAPinnedDeviceContext
::
CUDAPinnedDeviceContext
()
{
eigen_device_
.
reset
(
new
Eigen
::
DefaultDevice
());
}
CUDAPinnedDeviceContext
::
CUDAPinnedDeviceContext
(
CUDAPinnedPlace
place
)
:
place_
(
place
)
{
eigen_device_
.
reset
(
new
Eigen
::
DefaultDevice
());
}
Eigen
::
DefaultDevice
*
CUDAPinnedDeviceContext
::
eigen_device
()
const
{
return
eigen_device_
.
get
();
}
Place
CUDAPinnedDeviceContext
::
GetPlace
()
const
{
return
place_
;
}
#endif
#ifdef PADDLE_WITH_MKLDNN
...
...
paddle/fluid/platform/device_context.h
浏览文件 @
c14305f0
...
...
@@ -118,6 +118,25 @@ struct DefaultDeviceContextType<platform::CUDAPlace> {
using
TYPE
=
CUDADeviceContext
;
};
// Currently, CUDAPinnedDeviceContext is only used to data copying.
class
CUDAPinnedDeviceContext
:
public
DeviceContext
{
public:
CUDAPinnedDeviceContext
();
explicit
CUDAPinnedDeviceContext
(
CUDAPinnedPlace
place
);
Place
GetPlace
()
const
override
;
Eigen
::
DefaultDevice
*
eigen_device
()
const
;
private:
CUDAPinnedPlace
place_
;
std
::
unique_ptr
<
Eigen
::
DefaultDevice
>
eigen_device_
;
};
template
<
>
struct
DefaultDeviceContextType
<
platform
::
CUDAPinnedPlace
>
{
using
TYPE
=
CUDAPinnedDeviceContext
;
};
#endif
#ifdef PADDLE_WITH_MKLDNN
...
...
paddle/fluid/platform/place.cc
浏览文件 @
c14305f0
...
...
@@ -26,6 +26,7 @@ class PlacePrinter : public boost::static_visitor<> {
void
operator
()(
const
CUDAPlace
&
p
)
{
os_
<<
"CUDAPlace("
<<
p
.
device
<<
")"
;
}
void
operator
()(
const
CUDAPinnedPlace
&
p
)
{
os_
<<
"CUDAPinnedPlace"
;
}
private:
std
::
ostream
&
os_
;
...
...
@@ -40,12 +41,19 @@ const Place &get_place() { return the_default_place; }
const
CUDAPlace
default_gpu
()
{
return
CUDAPlace
(
0
);
}
const
CPUPlace
default_cpu
()
{
return
CPUPlace
();
}
const
CUDAPinnedPlace
default_cuda_pinned
()
{
return
CUDAPinnedPlace
();
}
bool
is_gpu_place
(
const
Place
&
p
)
{
return
boost
::
apply_visitor
(
IsCUDAPlace
(),
p
);
}
bool
is_cpu_place
(
const
Place
&
p
)
{
return
!
is_gpu_place
(
p
);
}
bool
is_cpu_place
(
const
Place
&
p
)
{
return
boost
::
apply_visitor
(
IsCPUPlace
(),
p
);
}
bool
is_cuda_pinned_place
(
const
Place
&
p
)
{
return
boost
::
apply_visitor
(
IsCUDAPinnedPlace
(),
p
);
}
bool
places_are_same_class
(
const
Place
&
p1
,
const
Place
&
p2
)
{
return
p1
.
which
()
==
p2
.
which
();
...
...
@@ -53,7 +61,7 @@ bool places_are_same_class(const Place &p1, const Place &p2) {
bool
is_same_place
(
const
Place
&
p1
,
const
Place
&
p2
)
{
if
(
places_are_same_class
(
p1
,
p2
))
{
if
(
is_cpu_place
(
p1
))
{
if
(
is_cpu_place
(
p1
)
||
is_cuda_pinned_place
(
p1
)
)
{
return
true
;
}
else
{
return
boost
::
get
<
CUDAPlace
>
(
p1
)
==
boost
::
get
<
CUDAPlace
>
(
p2
);
...
...
paddle/fluid/platform/place.h
浏览文件 @
c14305f0
...
...
@@ -45,12 +45,33 @@ struct CUDAPlace {
int
device
;
};
struct
CUDAPinnedPlace
{
CUDAPinnedPlace
()
{}
// needed for variant equality comparison
inline
bool
operator
==
(
const
CUDAPinnedPlace
&
)
const
{
return
true
;
}
inline
bool
operator
!=
(
const
CUDAPinnedPlace
&
)
const
{
return
false
;
}
};
struct
IsCUDAPlace
:
public
boost
::
static_visitor
<
bool
>
{
bool
operator
()(
const
CPUPlace
&
)
const
{
return
false
;
}
bool
operator
()(
const
CUDAPlace
&
gpu
)
const
{
return
true
;
}
bool
operator
()(
const
CUDAPinnedPlace
&
)
const
{
return
false
;
}
};
typedef
boost
::
variant
<
CUDAPlace
,
CPUPlace
>
Place
;
struct
IsCPUPlace
:
public
boost
::
static_visitor
<
bool
>
{
bool
operator
()(
const
CPUPlace
&
cpu
)
const
{
return
true
;
}
bool
operator
()(
const
CUDAPlace
&
)
const
{
return
false
;
}
bool
operator
()(
const
CUDAPinnedPlace
&
)
const
{
return
false
;
}
};
struct
IsCUDAPinnedPlace
:
public
boost
::
static_visitor
<
bool
>
{
bool
operator
()(
const
CPUPlace
&
)
const
{
return
false
;
}
bool
operator
()(
const
CUDAPlace
&
)
const
{
return
false
;
}
bool
operator
()(
const
CUDAPinnedPlace
&
cuda_pinned
)
const
{
return
true
;
}
};
typedef
boost
::
variant
<
CUDAPlace
,
CPUPlace
,
CUDAPinnedPlace
>
Place
;
using
PlaceList
=
std
::
vector
<
Place
>
;
...
...
@@ -59,9 +80,11 @@ const Place &get_place();
const
CUDAPlace
default_gpu
();
const
CPUPlace
default_cpu
();
const
CUDAPinnedPlace
default_cuda_pinned
();
bool
is_gpu_place
(
const
Place
&
);
bool
is_cpu_place
(
const
Place
&
);
bool
is_cuda_pinned_place
(
const
Place
&
);
bool
places_are_same_class
(
const
Place
&
,
const
Place
&
);
bool
is_same_place
(
const
Place
&
,
const
Place
&
);
...
...
@@ -95,6 +118,16 @@ struct PlaceVisitorWrapper
#else
PADDLE_THROW
(
"Paddle is not compiled with CUDA. Cannot visit cuda device"
);
return
typename
Visitor
::
result_type
();
#endif
}
typename
Visitor
::
result_type
operator
()(
const
CUDAPinnedPlace
&
cuda_pinned
)
const
{
#ifdef PADDLE_WITH_CUDA
return
visitor_
(
cuda_pinned
);
#else
PADDLE_THROW
(
"Paddle is not compiled with CUDA. Cannot visit cuda_pinned"
);
return
typename
Visitor
::
result_type
();
#endif
}
};
...
...
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