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体验新版 GitCode,发现更多精彩内容 >>
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f63273b9
编写于
10月 27, 2017
作者:
Z
Zhaolong Xing
提交者:
GitHub
10月 27, 2017
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Merge pull request #5151 from NHZlX/add_merge_model_scripts
Add merge model scripts
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python/paddle/utils/merge_model.py
python/paddle/utils/merge_model.py
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python/paddle/utils/merge_model.py
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# Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import
gzip
import
struct
import
os
from
paddle.trainer_config_helpers.layers
import
LayerOutput
from
paddle.v2.parameters
import
Parameters
from
paddle.proto
import
ModelConfig_pb2
from
paddle.v2.topology
import
Topology
def
merge_v2_model
(
net
,
param_file
,
output_file
):
'''Integrate the model config and model parameters into one file.
The model configuration file describes the model structure which
ends with .py. The parameters file stores the parameters of the model
which ends with .tar.gz.
@param net The output layer of the network.
@param param_file Path of the model parameters(.tar.gz) which is stored by v2 api.
@param output_file Path of the merged file which will be generated.
Usage:
from paddle.util.merge_model import merge_v2_model
# import your network configuration
from mobilenet import mobile_net
net = mobile_net(3*224*224, 102)
param_file = './param_pass_00000.tar.gz'
output_file = './output.paddle'
merge_v2_model(net, param_file, output_file)
'''
assert
isinstance
(
net
,
LayerOutput
),
\
"The net should be the output of the network"
assert
os
.
path
.
exists
(
param_file
),
\
"The model parameters file %s does not exists "
%
(
param_file
)
model_proto
=
Topology
(
net
).
proto
()
assert
isinstance
(
model_proto
,
ModelConfig_pb2
.
ModelConfig
)
with
gzip
.
open
(
param_file
)
as
f
:
params
=
Parameters
.
from_tar
(
f
)
if
os
.
path
.
exists
(
output_file
):
os
.
remove
(
output_file
)
with
open
(
output_file
,
'w'
)
as
f
:
param_names
=
[
param
.
name
for
param
in
model_proto
.
parameters
]
conf_str
=
model_proto
.
SerializeToString
()
f
.
write
(
struct
.
pack
(
'q'
,
len
(
conf_str
)))
f
.
write
(
conf_str
)
for
pname
in
param_names
:
params
.
serialize
(
pname
,
f
)
print
'Generate %s success!'
%
(
output_file
)
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