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体验新版 GitCode,发现更多精彩内容 >>
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b4dfba17
编写于
11月 13, 2018
作者:
T
tensor-tang
浏览文件
操作
浏览文件
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电子邮件补丁
差异文件
refine lrn_op cpu forward and speedup
test=develop
上级
1be85d01
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
39 addition
and
27 deletion
+39
-27
paddle/fluid/operators/lrn_op.cc
paddle/fluid/operators/lrn_op.cc
+39
-26
paddle/fluid/operators/lrn_op.h
paddle/fluid/operators/lrn_op.h
+0
-1
未找到文件。
paddle/fluid/operators/lrn_op.cc
浏览文件 @
b4dfba17
...
...
@@ -14,6 +14,7 @@ limitations under the License. */
#include "paddle/fluid/operators/lrn_op.h"
#include <string>
#include "paddle/fluid/operators/math/blas.h"
#ifdef PADDLE_WITH_MKLDNN
#include "paddle/fluid/platform/mkldnn_helper.h"
#endif
...
...
@@ -29,34 +30,43 @@ struct LRNFunctor<platform::CPUDeviceContext, T> {
const
framework
::
Tensor
&
input
,
framework
::
Tensor
*
out
,
framework
::
Tensor
*
mid
,
int
N
,
int
C
,
int
H
,
int
W
,
int
n
,
T
k
,
T
alpha
,
T
beta
)
{
auto
x_v
=
framework
::
EigenVector
<
T
>::
Flatten
(
input
);
const
int
start
=
-
(
n
-
1
)
/
2
;
const
int
end
=
start
+
n
;
auto
e_mid
=
framework
::
EigenTensor
<
T
,
4
>::
From
(
*
mid
);
e_mid
=
e_mid
.
constant
(
k
);
auto
e_x
=
framework
::
EigenTensor
<
T
,
4
>::
From
(
input
);
for
(
int
m
=
0
;
m
<
N
;
m
++
)
{
for
(
int
i
=
0
;
i
<
C
;
i
++
)
{
for
(
int
c
=
start
;
c
<
end
;
c
++
)
{
int
ch
=
i
+
c
;
if
(
ch
>=
0
&&
ch
<
C
)
{
auto
s
=
e_mid
.
slice
(
Eigen
::
array
<
int
,
4
>
({{
m
,
i
,
0
,
0
}}),
Eigen
::
array
<
int
,
4
>
({{
1
,
1
,
H
,
W
}}));
auto
r
=
e_x
.
slice
(
Eigen
::
array
<
int
,
4
>
({{
m
,
ch
,
0
,
0
}}),
Eigen
::
array
<
int
,
4
>
({{
1
,
1
,
H
,
W
}}));
s
+=
alpha
*
r
.
square
();
}
}
const
T
*
idata
=
input
.
data
<
T
>
();
auto
place
=
ctx
.
GetPlace
();
auto
blas
=
math
::
GetBlas
<
platform
::
CPUDeviceContext
,
T
>
(
ctx
);
T
*
odata
=
out
->
mutable_data
<
T
>
(
place
);
T
*
mdata
=
mid
->
mutable_data
<
T
>
(
place
);
Tensor
squared
;
T
*
sdata
=
squared
.
mutable_data
<
T
>
({
1
,
C
+
n
-
1
,
H
,
W
},
place
);
std
::
memset
(
sdata
,
0
,
sizeof
(
T
)
*
squared
.
numel
());
for
(
int
i
=
0
;
i
<
mid
->
numel
();
++
i
)
{
mdata
[
i
]
=
k
;
}
int
img_size
=
H
*
W
;
int
fea_size
=
C
*
img_size
;
int
pre_pad
=
(
n
-
1
)
/
2
;
// compute batches one by one
for
(
int
i
=
0
;
i
<
N
;
++
i
)
{
blas
.
VSQR
(
fea_size
,
idata
+
i
*
fea_size
,
sdata
+
pre_pad
*
img_size
);
// init the first channel of mid
for
(
int
c
=
0
;
c
<
n
;
++
c
)
{
blas
.
AXPY
(
img_size
,
alpha
,
sdata
+
c
*
img_size
,
mdata
+
i
*
fea_size
);
}
for
(
int
c
=
1
;
c
<
C
;
++
c
)
{
// copy previous scale
int
mid_offset
=
i
*
fea_size
+
c
*
img_size
;
std
::
memcpy
(
mdata
+
mid_offset
,
mdata
+
mid_offset
-
img_size
,
img_size
*
sizeof
(
T
));
// add last
blas
.
AXPY
(
img_size
,
alpha
,
sdata
+
(
c
+
n
-
1
)
*
img_size
,
mdata
+
mid_offset
);
// sub rest
blas
.
AXPY
(
img_size
,
-
alpha
,
sdata
+
(
c
-
1
)
*
img_size
,
mdata
+
mid_offset
);
}
}
auto
out_e
=
framework
::
EigenVector
<
T
>::
Flatten
(
*
out
);
out_e
=
x_v
*
e_mid
.
reshape
(
Eigen
::
DSizes
<
int
,
1
>
(
e_mid
.
size
())).
pow
(
-
be
ta
);
// compute the final output
blas
.
VPOW
(
mid
->
numel
(),
mdata
,
-
beta
,
odata
);
blas
.
VMUL
(
mid
->
numel
(),
odata
,
idata
,
oda
ta
);
}
};
template
struct
LRNFunctor
<
platform
::
CPUDeviceContext
,
float
>;
...
...
@@ -156,6 +166,9 @@ class LRNOp : public framework::OperatorWithKernel {
auto
x_dim
=
ctx
->
GetInputDim
(
"X"
);
PADDLE_ENFORCE_EQ
(
x_dim
.
size
(),
4
,
"Input(X)'rank of LRNOp should be 4."
);
int
n
=
ctx
->
Attrs
().
Get
<
int
>
(
"n"
);
PADDLE_ENFORCE
(
n
>
0
&&
n
%
2
==
1
,
"n should be positive odd value"
);
ctx
->
SetOutputDim
(
"Out"
,
x_dim
);
ctx
->
ShareLoD
(
"X"
,
/*->*/
"Out"
);
ctx
->
SetOutputDim
(
"MidOut"
,
x_dim
);
...
...
paddle/fluid/operators/lrn_op.h
浏览文件 @
b4dfba17
...
...
@@ -60,7 +60,6 @@ class LRNKernel : public framework::OpKernel<T> {
T
beta
=
ctx
.
Attr
<
float
>
(
"beta"
);
T
k
=
ctx
.
Attr
<
float
>
(
"k"
);
PADDLE_ENFORCE
(
n
>
0
,
"n should >= 0"
);
PADDLE_ENFORCE
(
alpha
>=
0.0
,
"alpha should >= 0.0"
);
PADDLE_ENFORCE
(
beta
>=
0.0
,
"beta should >= 0.0"
);
PADDLE_ENFORCE
(
k
>=
0.0
,
"k should >= 0.0"
);
...
...
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