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体验新版 GitCode,发现更多精彩内容 >>
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685d1e3b
编写于
12月 14, 2017
作者:
Y
Yibing Liu
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电子邮件补丁
差异文件
Enable reshape_op to support dimension inference
上级
a91efdde
变更
1
隐藏空白更改
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Showing
1 changed file
with
18 addition
and
9 deletion
+18
-9
paddle/operators/reshape_op.cc
paddle/operators/reshape_op.cc
+18
-9
未找到文件。
paddle/operators/reshape_op.cc
浏览文件 @
685d1e3b
...
...
@@ -34,21 +34,27 @@ class ReshapeOp : public framework::OperatorWithKernel {
auto
shape
=
ctx
->
Attrs
().
Get
<
std
::
vector
<
int
>>
(
"shape"
);
PADDLE_ENFORCE
(
shape
.
size
()
>
0
,
"Attr(shape) shouldn't be empty."
);
auto
x_dims
=
ctx
->
GetInputDim
(
"X"
);
// TODO(qiao) change batch_size
for
(
size_t
i
=
1
;
i
<
shape
.
size
();
++
i
)
{
PADDLE_ENFORCE
(
shape
[
i
]
>
0
,
"Each dimension of Attr(shape) "
"must be positive except the first one."
);
}
if
(
shape
[
0
]
<
0
)
{
shape
[
0
]
=
x_dims
[
0
];
std
::
vector
<
size_t
>
neg_dims_idx
;
for
(
size_t
i
=
0
;
i
<
shape
.
size
();
++
i
)
{
PADDLE_ENFORCE
(
shape
[
i
]
>
0
||
shape
[
i
]
==
-
1
,
"Each dimension of Attr(shape) must be positive or -1."
);
if
(
shape
[
i
]
==
-
1
)
{
neg_dims_idx
.
push_back
(
i
);
PADDLE_ENFORCE
(
neg_dims_idx
.
size
()
<=
1
,
"Only one dimension of Attr(shape) can be -1."
);
}
}
// capacity check
int64_t
capacity
=
std
::
accumulate
(
shape
.
begin
(),
shape
.
end
(),
1
,
std
::
multiplies
<
int
>
());
int64_t
in_size
=
framework
::
product
(
x_dims
);
PADDLE_ENFORCE_EQ
(
capacity
,
in_size
,
if
(
neg_dims_idx
.
size
()
==
1
)
{
shape
[
neg_dims_idx
[
0
]]
=
in_size
/
(
-
capacity
);
PADDLE_ENFORCE
(
shape
[
neg_dims_idx
[
0
]]
>
0
,
"The size of Input(X) mismatches with Attr(shape)."
);
}
// resize output
std
::
vector
<
int64_t
>
shape_int64
(
shape
.
size
(),
0
);
std
::
transform
(
shape
.
begin
(),
shape
.
end
(),
shape_int64
.
begin
(),
...
...
@@ -88,6 +94,9 @@ the tensor X into a 1-D tensor:
[1, 2, 3, 4]
One dimension in the target shape can be set -1, and the real dimension
will be infered from the original shape of Input(X) and other
dimensions in the target shape.
)DOC"
);
}
};
...
...
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