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体验新版 GitCode,发现更多精彩内容 >>
未验证
提交
58a88ba9
编写于
9月 10, 2020
作者:
L
lilong12
提交者:
GitHub
9月 10, 2020
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差异文件
add double grad for expand (#27183)
* add double grad for expand, test=develop
上级
7c7fbd32
变更
2
隐藏空白更改
内联
并排
Showing
2 changed file
with
46 addition
and
0 deletion
+46
-0
paddle/fluid/operators/expand_op.cc
paddle/fluid/operators/expand_op.cc
+22
-0
python/paddle/fluid/tests/unittests/test_nn_grad.py
python/paddle/fluid/tests/unittests/test_nn_grad.py
+24
-0
未找到文件。
paddle/fluid/operators/expand_op.cc
浏览文件 @
58a88ba9
...
...
@@ -228,6 +228,26 @@ class ExpandGradOpMaker : public framework::SingleGradOpMaker<T> {
}
};
template
<
typename
T
>
class
ExpandDoubleGradOpMaker
:
public
framework
::
SingleGradOpMaker
<
T
>
{
public:
using
framework
::
SingleGradOpMaker
<
T
>::
SingleGradOpMaker
;
protected:
void
Apply
(
GradOpPtr
<
T
>
op
)
const
override
{
op
->
SetInput
(
"X"
,
this
->
OutputGrad
(
framework
::
GradVarName
(
"X"
)));
op
->
SetOutput
(
"Out"
,
this
->
InputGrad
(
framework
::
GradVarName
(
"Out"
)));
if
(
this
->
HasInput
(
"expand_times_tensor"
))
{
op
->
SetInput
(
"expand_times_tensor"
,
this
->
Input
(
"expand_times_tensor"
));
}
if
(
this
->
HasInput
(
"ExpandTimes"
))
{
op
->
SetInput
(
"ExpandTimes"
,
this
->
Input
(
"ExpandTimes"
));
}
op
->
SetAttrMap
(
this
->
Attrs
());
op
->
SetType
(
"expand"
);
}
};
DECLARE_NO_NEED_BUFFER_VARS_INFERER
(
ExpandGradNoNeedBufVarsInferer
,
"X"
);
}
// namespace operators
...
...
@@ -238,6 +258,8 @@ REGISTER_OPERATOR(expand, ops::ExpandOp, ops::ExpandOpMaker,
ops
::
ExpandGradOpMaker
<
paddle
::
framework
::
OpDesc
>
,
ops
::
ExpandGradOpMaker
<
paddle
::
imperative
::
OpBase
>
);
REGISTER_OPERATOR
(
expand_grad
,
ops
::
ExpandGradOp
,
ops
::
ExpandDoubleGradOpMaker
<
paddle
::
framework
::
OpDesc
>
,
ops
::
ExpandDoubleGradOpMaker
<
paddle
::
imperative
::
OpBase
>
,
ops
::
ExpandGradNoNeedBufVarsInferer
);
REGISTER_OP_CPU_KERNEL
(
expand
,
ops
::
ExpandKernel
<
paddle
::
platform
::
CPUDeviceContext
,
float
>
,
...
...
python/paddle/fluid/tests/unittests/test_nn_grad.py
浏览文件 @
58a88ba9
...
...
@@ -153,6 +153,30 @@ class TestMulDoubleGradCheck(unittest.TestCase):
class
TestReshapeDoubleGradCheck
(
unittest
.
TestCase
):
@
prog_scope
()
def
func
(
self
,
place
):
x_shape
=
[
3
,
12
]
expand_times
=
[
4
,
9
]
eps
=
0.005
dtype
=
np
.
float64
x
=
layers
.
data
(
'x'
,
x_shape
,
False
,
dtype
)
x
.
persistable
=
True
out
=
layers
.
expand
(
x
,
expand_times
)
x_arr
=
np
.
random
.
uniform
(
-
1
,
1
,
x_shape
).
astype
(
dtype
)
gradient_checker
.
double_grad_check
(
[
x
],
out
,
x_init
=
x_arr
,
place
=
place
,
eps
=
eps
)
def
test_grad
(
self
):
places
=
[
fluid
.
CPUPlace
()]
if
core
.
is_compiled_with_cuda
():
places
.
append
(
fluid
.
CUDAPlace
(
0
))
for
p
in
places
:
self
.
func
(
p
)
class
TestExpandDoubleGradCheck
(
unittest
.
TestCase
):
@
prog_scope
()
def
func
(
self
,
place
):
x_shape
=
[
3
,
12
]
...
...
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