Skip to content
体验新版
项目
组织
正在加载...
登录
切换导航
打开侧边栏
PaddlePaddle
PaddleDetection
提交
dc7f2031
P
PaddleDetection
项目概览
PaddlePaddle
/
PaddleDetection
大约 1 年 前同步成功
通知
695
Star
11112
Fork
2696
代码
文件
提交
分支
Tags
贡献者
分支图
Diff
Issue
184
列表
看板
标记
里程碑
合并请求
40
Wiki
0
Wiki
分析
仓库
DevOps
项目成员
Pages
P
PaddleDetection
项目概览
项目概览
详情
发布
仓库
仓库
文件
提交
分支
标签
贡献者
分支图
比较
Issue
184
Issue
184
列表
看板
标记
里程碑
合并请求
40
合并请求
40
Pages
分析
分析
仓库分析
DevOps
Wiki
0
Wiki
成员
成员
收起侧边栏
关闭侧边栏
动态
分支图
创建新Issue
提交
Issue看板
提交
dc7f2031
编写于
2月 13, 2017
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
Add comments for functions
上级
ce49124d
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
50 addition
and
13 deletion
+50
-13
python/paddle/v2/trainer.py
python/paddle/v2/trainer.py
+50
-13
未找到文件。
python/paddle/v2/trainer.py
浏览文件 @
dc7f2031
...
...
@@ -16,6 +16,10 @@ class BaseEvent(object):
class
CompleteTrainOneBatch
(
BaseEvent
):
"""
Event On One Batch Training Complete.
"""
def
__init__
(
self
,
pass_id
,
batch_id
,
cost
):
self
.
pass_id
=
pass_id
self
.
batch_id
=
batch_id
...
...
@@ -38,6 +42,11 @@ class ITrainer(object):
class
SGDTrainer
(
ITrainer
):
def
__init__
(
self
,
update_equation
):
"""
Simple SGD Trainer.
:param update_equation: Maybe we should give a DSL for update equation?
"""
if
not
isinstance
(
update_equation
,
paddle
.
v2
.
optimizer
.
Optimizer
):
raise
ValueError
()
...
...
@@ -52,6 +61,21 @@ class SGDTrainer(ITrainer):
event_handler
=
None
,
batch_size
=
32
,
data_types
=
None
):
"""
Training method. Will train num_passes of input data.
:param train_data_reader:
:param topology: Network Topology, a protobuf ModelConfig message.
:param parameters: The parameter pools.
:param num_passes: The total train passes.
:param test_data_reader:
:param event_handler: Event handler. A method will be invoked when event
occurred.
:type event_handler: (BaseEvent) => None
:param batch_size: Not important, will be removed after data refactor.
:param data_types: Not important, will be removed after data refactor.
:return:
"""
if
event_handler
is
None
:
event_handler
=
default_event_handler
...
...
@@ -66,6 +90,9 @@ class SGDTrainer(ITrainer):
assert
isinstance
(
updater
,
api
.
ParameterUpdater
)
updater
.
init
(
gm
)
gm
.
start
()
out_args
=
api
.
Arguments
.
createArguments
(
0
)
data_types_lists
=
[]
for
each
in
topology
.
input_layer_names
:
if
each
not
in
data_types
:
...
...
@@ -74,22 +101,11 @@ class SGDTrainer(ITrainer):
converter
=
DataProviderConverter
(
input_types
=
data_types_lists
)
def
input_reorder
(
func
):
for
item
in
func
():
retv
=
[]
for
__layer_name__
in
topology
.
input_layer_names
:
retv
.
append
(
item
[
__layer_name__
])
yield
retv
gm
.
start
()
out_args
=
api
.
Arguments
.
createArguments
(
0
)
for
pass_id
in
xrange
(
num_passes
):
updater
.
startPass
()
for
batch_id
,
data_batch
in
enumerate
(
__generator_to_batch__
(
input_reorder
(
train_data_reader
),
batch_size
=
batch_size
)):
__data_reader_to_batch__
(
train_data_reader
,
batch_size
,
topology
)):
pass_type
=
updater
.
startBatch
(
len
(
data_batch
))
gm
.
forwardBackward
(
converter
(
data_batch
),
out_args
,
pass_type
)
for
each_param
in
gm
.
getParameters
():
...
...
@@ -108,7 +124,25 @@ class SGDTrainer(ITrainer):
gm
.
finish
()
def
__data_reader_to_batch__
(
reader
,
batch_size
,
topology
):
"""
This function is not important, and will be removed when data refactored.
"""
def
input_reorder
(
func
):
for
item
in
func
():
retv
=
[]
for
__layer_name__
in
topology
.
input_layer_names
:
retv
.
append
(
item
[
__layer_name__
])
yield
retv
return
__generator_to_batch__
(
input_reorder
(
reader
),
batch_size
=
batch_size
)
def
__generator_to_batch__
(
generator
,
batch_size
):
"""
This function is not important, and will be removed when data refactored.
"""
ret_val
=
list
()
for
each_item
in
generator
:
ret_val
.
append
(
each_item
)
...
...
@@ -139,6 +173,9 @@ def __copy_parameter_from_pool__(gm, pool):
def
__check_train_args__
(
train_data_reader
,
topology
,
parameters
,
test_data_reader
,
event_handler
,
**
kwargs
):
"""
Check train function's argument types
"""
if
not
callable
(
train_data_reader
)
or
not
isinstance
(
train_data_reader
(),
collections
.
Iterator
):
raise
ValueError
(
'train_data_reader should be a function, '
...
...
编辑
预览
Markdown
is supported
0%
请重试
或
添加新附件
.
添加附件
取消
You are about to add
0
people
to the discussion. Proceed with caution.
先完成此消息的编辑!
取消
想要评论请
注册
或
登录