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体验新版 GitCode,发现更多精彩内容 >>
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c70b60dd
编写于
3月 24, 2018
作者:
Y
Yu Yang
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
Make executor steal graph inside
上级
4c3361cd
变更
4
隐藏空白更改
内联
并排
Showing
4 changed file
with
28 addition
and
25 deletion
+28
-25
paddle/fluid/framework/details/multi_devices_graph_builder.cc
...le/fluid/framework/details/multi_devices_graph_builder.cc
+5
-2
paddle/fluid/framework/details/multi_devices_graph_builder.h
paddle/fluid/framework/details/multi_devices_graph_builder.h
+1
-1
paddle/fluid/framework/details/ssa_graph_builder.h
paddle/fluid/framework/details/ssa_graph_builder.h
+2
-1
paddle/fluid/framework/parallel_executor.cc
paddle/fluid/framework/parallel_executor.cc
+20
-21
未找到文件。
paddle/fluid/framework/details/multi_devices_graph_builder.cc
浏览文件 @
c70b60dd
...
...
@@ -37,8 +37,9 @@ MultiDevSSAGraphBuilder::MultiDevSSAGraphBuilder(
}
}
void
MultiDevSSAGraphBuilder
::
Build
(
const
ProgramDesc
&
program
,
SSAGraph
*
graph
)
const
{
std
::
unique_ptr
<
SSAGraph
>
MultiDevSSAGraphBuilder
::
Build
(
const
ProgramDesc
&
program
)
const
{
auto
graph
=
new
SSAGraph
();
SSAGraph
&
result
=
*
graph
;
result
.
vars_
.
resize
(
places_
.
size
());
...
...
@@ -134,6 +135,8 @@ void MultiDevSSAGraphBuilder::Build(const ProgramDesc &program,
harzaeds need to be handled.
*/
PolishGraphToSupportDataHazards
(
&
result
);
return
std
::
unique_ptr
<
SSAGraph
>
(
graph
);
}
}
// namespace details
}
// namespace framework
...
...
paddle/fluid/framework/details/multi_devices_graph_builder.h
浏览文件 @
c70b60dd
...
...
@@ -32,7 +32,7 @@ class MultiDevSSAGraphBuilder : public SSAGraphBuilder {
const
std
::
vector
<
Scope
*>
&
local_scopes
,
platform
::
NCCLContextMap
*
nccl_ctxs
);
void
Build
(
const
ProgramDesc
&
program
,
SSAGraph
*
graph
)
const
override
;
std
::
unique_ptr
<
SSAGraph
>
Build
(
const
ProgramDesc
&
program
)
const
override
;
private:
std
::
string
loss_var_name_
;
...
...
paddle/fluid/framework/details/ssa_graph_builder.h
浏览文件 @
c70b60dd
...
...
@@ -18,6 +18,7 @@
#include "paddle/fluid/framework/program_desc.h"
#include "paddle/fluid/platform/place.h"
#include <memory>
#include <string>
namespace
paddle
{
...
...
@@ -28,7 +29,7 @@ class SSAGraphBuilder {
public:
SSAGraphBuilder
()
{}
virtual
~
SSAGraphBuilder
()
{}
virtual
void
Build
(
const
ProgramDesc
&
program
,
SSAGraph
*
graph
)
const
=
0
;
virtual
std
::
unique_ptr
<
SSAGraph
>
Build
(
const
ProgramDesc
&
program
)
const
=
0
;
DISABLE_COPY_AND_ASSIGN
(
SSAGraphBuilder
);
...
...
paddle/fluid/framework/parallel_executor.cc
浏览文件 @
c70b60dd
...
...
@@ -34,16 +34,16 @@ class SSAGraphExecutor {
DISABLE_COPY_AND_ASSIGN
(
SSAGraphExecutor
);
public:
explicit
SSAGraphExecutor
(
SSAGraph
*
graph
)
:
graph_
(
*
graph
)
{}
// Steal graph inside
explicit
SSAGraphExecutor
(
std
::
unique_ptr
<
SSAGraph
>
&&
graph
)
:
graph_
(
std
::
move
(
graph
))
{}
virtual
~
SSAGraphExecutor
()
{}
virtual
void
Run
(
Scope
*
global_scope
,
const
std
::
vector
<
std
::
string
>
&
fetch_tensors
,
const
std
::
string
&
fetch_list_name
)
=
0
;
virtual
FeedFetchList
Run
(
const
std
::
vector
<
std
::
string
>
&
fetch_tensors
)
=
0
;
protected:
SSAGraph
&
graph_
;
std
::
unique_ptr
<
SSAGraph
>
graph_
;
};
class
ThreadedSSAGraphExecutor
:
public
SSAGraphExecutor
{
...
...
@@ -51,16 +51,17 @@ class ThreadedSSAGraphExecutor : public SSAGraphExecutor {
ThreadedSSAGraphExecutor
(
size_t
num_threads
,
bool
use_event
,
const
std
::
vector
<
Scope
*>
&
local_scopes
,
const
std
::
vector
<
platform
::
Place
>
&
places
,
SSAGraph
*
graph
)
:
SSAGraphExecutor
(
graph
),
std
::
unique_ptr
<
SSAGraph
>
&&
graph
)
:
SSAGraphExecutor
(
std
::
move
(
graph
)
),
pool_
(
num_threads
>=
2
?
new
::
ThreadPool
(
num_threads
)
:
nullptr
),
local_scopes_
(
local_scopes
),
places_
(
places
),
fetch_ctxs_
(
places
),
use_event_
(
use_event
)
{}
void
Run
(
Scope
*
global_scope
,
const
std
::
vector
<
std
::
string
>
&
fetch_tensors
,
const
std
::
string
&
fetch_list_name
)
override
{
// Run a SSAGraph by a thread pool
// Use topological sort algorithm
FeedFetchList
Run
(
const
std
::
vector
<
std
::
string
>
&
fetch_tensors
)
override
{
std
::
unordered_map
<
OpHandleBase
*
,
size_t
>
pending_ops
;
std
::
unordered_map
<
VarHandleBase
*
,
std
::
atomic
<
bool
>>
pending_vars
;
std
::
unordered_set
<
OpHandleBase
*>
ready_ops
;
...
...
@@ -74,18 +75,18 @@ class ThreadedSSAGraphExecutor : public SSAGraphExecutor {
};
// Transform SSAGraph to pending_ops & pending_vars
for
(
auto
&
var_map
:
graph_
.
vars_
)
{
for
(
auto
&
var_map
:
graph_
->
vars_
)
{
for
(
auto
&
name_pair
:
var_map
)
{
for
(
auto
&
version_pair
:
name_pair
.
second
)
{
InsertPendingVar
(
version_pair
.
second
);
}
}
}
for
(
auto
&
var
:
graph_
.
dep_vars_
)
{
for
(
auto
&
var
:
graph_
->
dep_vars_
)
{
InsertPendingVar
(
*
var
);
}
for
(
auto
&
op
:
graph_
.
ops_
)
{
for
(
auto
&
op
:
graph_
->
ops_
)
{
if
(
op
->
inputs_
.
empty
())
{
// Special case, Op has no input.
ready_ops
.
insert
(
op
.
get
());
}
else
{
...
...
@@ -101,7 +102,7 @@ class ThreadedSSAGraphExecutor : public SSAGraphExecutor {
std
::
unordered_map
<
std
::
string
,
std
::
vector
<
VarHandleBase
*>>
fetched_vars
;
for
(
auto
&
fetch_var_name
:
fetch_tensors
)
{
for
(
auto
&
var_map
:
graph_
.
vars_
)
{
for
(
auto
&
var_map
:
graph_
->
vars_
)
{
auto
it
=
var_map
.
find
(
fetch_var_name
);
if
(
it
!=
var_map
.
end
())
{
fetched_vars
[
fetch_var_name
].
push_back
(
&
it
->
second
.
rbegin
()
->
second
);
...
...
@@ -182,8 +183,7 @@ class ThreadedSSAGraphExecutor : public SSAGraphExecutor {
fetch_op
.
WaitAndMergeCPUTensors
();
}
*
global_scope
->
Var
(
fetch_list_name
)
->
GetMutable
<
FeedFetchList
>
()
=
fetch_data
;
return
fetch_data
;
}
~
ThreadedSSAGraphExecutor
()
{}
...
...
@@ -240,8 +240,6 @@ class ParallelExecutorPrivate {
std
::
unique_ptr
<
platform
::
NCCLContextMap
>
nccl_ctxs_
;
details
::
SSAGraph
graph_
;
std
::
unique_ptr
<
SSAGraphExecutor
>
executor_
;
};
...
...
@@ -274,10 +272,10 @@ ParallelExecutor::ParallelExecutor(
details
::
MultiDevSSAGraphBuilder
builder
(
member_
->
places_
,
loss_var_name
,
params
,
member_
->
local_scopes_
,
member_
->
nccl_ctxs_
.
get
());
builder
.
Build
(
main_program
,
&
member_
->
graph_
);
auto
graph
=
builder
.
Build
(
main_program
);
member_
->
executor_
.
reset
(
new
ThreadedSSAGraphExecutor
(
num_threads
,
true
,
member_
->
local_scopes_
,
places
,
&
member_
->
graph_
));
num_threads
,
true
,
member_
->
local_scopes_
,
places
,
std
::
move
(
graph
)
));
// Step 3. Create vars in each scope;
for
(
auto
*
scope
:
member_
->
local_scopes_
)
{
...
...
@@ -338,8 +336,9 @@ void ParallelExecutor::BuildNCCLCommunicator() const {
void
ParallelExecutor
::
Run
(
const
std
::
vector
<
std
::
string
>
&
fetch_tensors
,
const
std
::
string
&
fetched_var_name
)
{
member_
->
executor_
->
Run
(
member_
->
global_scope_
,
fetch_tensors
,
fetched_var_name
);
auto
fetch_data
=
member_
->
executor_
->
Run
(
fetch_tensors
);
*
member_
->
global_scope_
->
Var
(
fetched_var_name
)
->
GetMutable
<
FeedFetchList
>
()
=
fetch_data
;
}
}
// namespace framework
...
...
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