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fa94261b
编写于
6年前
作者:
Q
qiaolongfei
浏览文件
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电子邮件补丁
差异文件
avoid duplicated init op for one parameter
上级
56b50ee4
2 合并请求
!12716
Port pybind11
,
!12463
avoid duplicated init op for one parameter
变更
1
隐藏空白更改
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Showing
1 changed file
with
28 addition
and
0 deletion
+28
-0
python/paddle/fluid/initializer.py
python/paddle/fluid/initializer.py
+28
-0
未找到文件。
python/paddle/fluid/initializer.py
浏览文件 @
fa94261b
...
...
@@ -62,6 +62,13 @@ def init_on_cpu():
_force_init_on_cpu_
=
pre_state
def
_is_inited_by
(
block
,
var
,
init_op_type
):
for
op
in
block
.
ops
:
if
var
.
name
in
op
.
output_arg_names
and
op
.
type
==
init_op_type
:
return
op
return
None
class
Initializer
(
object
):
"""Base class for variable initializers
...
...
@@ -147,6 +154,9 @@ class ConstantInitializer(Initializer):
"""
assert
isinstance
(
var
,
framework
.
Variable
)
assert
isinstance
(
block
,
framework
.
Block
)
init_op
=
_is_inited_by
(
block
,
var
,
'uniform_random'
)
if
init_op
is
not
None
:
return
init_op
# Initialization Ops should be prepended and not appended
op
=
block
.
_prepend_op
(
type
=
"fill_constant"
,
...
...
@@ -199,6 +209,9 @@ class UniformInitializer(Initializer):
"""
assert
isinstance
(
var
,
framework
.
Variable
)
assert
isinstance
(
block
,
framework
.
Block
)
init_op
=
_is_inited_by
(
block
,
var
,
'uniform_random'
)
if
init_op
is
not
None
:
return
init_op
# Initialization Ops should be prepended and not appended
if
self
.
_seed
==
0
:
self
.
_seed
=
block
.
program
.
random_seed
...
...
@@ -253,6 +266,9 @@ class NormalInitializer(Initializer):
"""
assert
isinstance
(
var
,
framework
.
Variable
)
assert
isinstance
(
block
,
framework
.
Block
)
init_op
=
_is_inited_by
(
block
,
var
,
'uniform_random'
)
if
init_op
is
not
None
:
return
init_op
# Initialization Ops should be prepended and not appended
if
self
.
_seed
==
0
:
self
.
_seed
=
block
.
program
.
random_seed
...
...
@@ -335,6 +351,10 @@ class XavierInitializer(Initializer):
"""
assert
isinstance
(
var
,
framework
.
Variable
)
assert
isinstance
(
block
,
framework
.
Block
)
init_op
=
_is_inited_by
(
block
,
var
,
'uniform_random'
)
if
init_op
is
not
None
:
return
init_op
f_in
,
f_out
=
self
.
_compute_fans
(
var
)
# If fan_in and fan_out are passed, use them
...
...
@@ -434,6 +454,10 @@ class MSRAInitializer(Initializer):
"""
assert
isinstance
(
var
,
framework
.
Variable
)
assert
isinstance
(
block
,
framework
.
Block
)
init_op
=
_is_inited_by
(
block
,
var
,
'uniform_random'
)
if
init_op
is
not
None
:
return
init_op
f_in
,
f_out
=
self
.
_compute_fans
(
var
)
# If fan_in is passed, use it
...
...
@@ -532,6 +556,10 @@ class BilinearInitializer(Initializer):
if
not
isinstance
(
block
,
framework
.
Block
):
raise
ValueError
(
"block must be framework.Block."
)
init_op
=
_is_inited_by
(
block
,
var
,
'uniform_random'
)
if
init_op
is
not
None
:
return
init_op
shape
=
var
.
shape
if
len
(
shape
)
!=
4
:
raise
ValueError
(
"the length of shape must be 4."
)
...
...
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