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CaffeOnACL/python/caffe/test/test_python_layer.py at master · hexujun/CaffeOnACL · GitHub
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test
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test_python_layer.py
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caffe
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test_python_layer.py
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import
unittest
import
tempfile
import
os
import
six
import
caffe
class
SimpleLayer
(
caffe
.
Layer
):
"""A layer that just multiplies by ten"""
def
setup
(
self
,
bottom
,
top
):
pass
def
reshape
(
self
,
bottom
,
top
):
top
[
0
].
reshape
(
*
bottom
[
0
].
data
.
shape
)
def
forward
(
self
,
bottom
,
top
):
top
[
0
].
data
[...]
=
10
*
bottom
[
0
].
data
def
backward
(
self
,
top
,
propagate_down
,
bottom
):
bottom
[
0
].
diff
[...]
=
10
*
top
[
0
].
diff
class
ExceptionLayer
(
caffe
.
Layer
):
"""A layer for checking exceptions from Python"""
def
setup
(
self
,
bottom
,
top
):
raise
RuntimeError
class
ParameterLayer
(
caffe
.
Layer
):
"""A layer that just multiplies by ten"""
def
setup
(
self
,
bottom
,
top
):
self
.
blobs
.
add_blob
(
1
)
self
.
blobs
[
0
].
data
[
0
]
=
0
def
reshape
(
self
,
bottom
,
top
):
top
[
0
].
reshape
(
*
bottom
[
0
].
data
.
shape
)
def
forward
(
self
,
bottom
,
top
):
pass
def
backward
(
self
,
top
,
propagate_down
,
bottom
):
self
.
blobs
[
0
].
diff
[
0
]
=
1
class
PhaseLayer
(
caffe
.
Layer
):
"""A layer for checking attribute `phase`"""
def
setup
(
self
,
bottom
,
top
):
pass
def
reshape
(
self
,
bootom
,
top
):
top
[
0
].
reshape
()
def
forward
(
self
,
bottom
,
top
):
top
[
0
].
data
[()]
=
self
.
phase
def
python_net_file
():
with
tempfile
.
NamedTemporaryFile
(
mode
=
'w+'
,
delete
=
False
)
as
f
:
f
.
write
(
"""name: 'pythonnet' force_backward: true
input: 'data' input_shape { dim: 10 dim: 9 dim: 8 }
layer { type: 'Python' name: 'one' bottom: 'data' top: 'one'
python_param { module: 'test_python_layer' layer: 'SimpleLayer' } }
layer { type: 'Python' name: 'two' bottom: 'one' top: 'two'
python_param { module: 'test_python_layer' layer: 'SimpleLayer' } }
layer { type: 'Python' name: 'three' bottom: 'two' top: 'three'
python_param { module: 'test_python_layer' layer: 'SimpleLayer' } }"""
)
return
f
.
name
def
exception_net_file
():
with
tempfile
.
NamedTemporaryFile
(
mode
=
'w+'
,
delete
=
False
)
as
f
:
f
.
write
(
"""name: 'pythonnet' force_backward: true
input: 'data' input_shape { dim: 10 dim: 9 dim: 8 }
layer { type: 'Python' name: 'layer' bottom: 'data' top: 'top'
python_param { module: 'test_python_layer' layer: 'ExceptionLayer' } }
"""
)
return
f
.
name
def
parameter_net_file
():
with
tempfile
.
NamedTemporaryFile
(
mode
=
'w+'
,
delete
=
False
)
as
f
:
f
.
write
(
"""name: 'pythonnet' force_backward: true
input: 'data' input_shape { dim: 10 dim: 9 dim: 8 }
layer { type: 'Python' name: 'layer' bottom: 'data' top: 'top'
python_param { module: 'test_python_layer' layer: 'ParameterLayer' } }
"""
)
return
f
.
name
def
phase_net_file
():
with
tempfile
.
NamedTemporaryFile
(
mode
=
'w+'
,
delete
=
False
)
as
f
:
f
.
write
(
"""name: 'pythonnet' force_backward: true
layer { type: 'Python' name: 'layer' top: 'phase'
python_param { module: 'test_python_layer' layer: 'PhaseLayer' } }
"""
)
return
f
.
name
@
unittest
.
skipIf
(
'Python'
not
in
caffe
.
layer_type_list
(),
'Caffe built without Python layer support'
)
class
TestPythonLayer
(
unittest
.
TestCase
):
def
setUp
(
self
):
net_file
=
python_net_file
()
self
.
net
=
caffe
.
Net
(
net_file
,
caffe
.
TRAIN
)
os
.
remove
(
net_file
)
def
test_forward
(
self
):
x
=
8
self
.
net
.
blobs
[
'data'
].
data
[...]
=
x
self
.
net
.
forward
()
for
y
in
self
.
net
.
blobs
[
'three'
].
data
.
flat
:
self
.
assertEqual
(
y
,
10
**
3
*
x
)
def
test_backward
(
self
):
x
=
7
self
.
net
.
blobs
[
'three'
].
diff
[...]
=
x
self
.
net
.
backward
()
for
y
in
self
.
net
.
blobs
[
'data'
].
diff
.
flat
:
self
.
assertEqual
(
y
,
10
**
3
*
x
)
def
test_reshape
(
self
):
s
=
4
self
.
net
.
blobs
[
'data'
].
reshape
(
s
,
s
,
s
,
s
)
self
.
net
.
forward
()
for
blob
in
six
.
itervalues
(
self
.
net
.
blobs
):
for
d
in
blob
.
data
.
shape
:
self
.
assertEqual
(
s
,
d
)
def
test_exception
(
self
):
net_file
=
exception_net_file
()
self
.
assertRaises
(
RuntimeError
,
caffe
.
Net
,
net_file
,
caffe
.
TEST
)
os
.
remove
(
net_file
)
def
test_parameter
(
self
):
net_file
=
parameter_net_file
()
net
=
caffe
.
Net
(
net_file
,
caffe
.
TRAIN
)
# Test forward and backward
net
.
forward
()
net
.
backward
()
layer
=
net
.
layers
[
list
(
net
.
_layer_names
).
index
(
'layer'
)]
self
.
assertEqual
(
layer
.
blobs
[
0
].
data
[
0
],
0
)
self
.
assertEqual
(
layer
.
blobs
[
0
].
diff
[
0
],
1
)
layer
.
blobs
[
0
].
data
[
0
]
+=
layer
.
blobs
[
0
].
diff
[
0
]
self
.
assertEqual
(
layer
.
blobs
[
0
].
data
[
0
],
1
)
# Test saving and loading
h
,
caffemodel_file
=
tempfile
.
mkstemp
()
net
.
save
(
caffemodel_file
)
layer
.
blobs
[
0
].
data
[
0
]
=
-
1
self
.
assertEqual
(
layer
.
blobs
[
0
].
data
[
0
],
-
1
)
net
.
copy_from
(
caffemodel_file
)
self
.
assertEqual
(
layer
.
blobs
[
0
].
data
[
0
],
1
)
os
.
remove
(
caffemodel_file
)
# Test weight sharing
net2
=
caffe
.
Net
(
net_file
,
caffe
.
TRAIN
)
net2
.
share_with
(
net
)
layer
=
net
.
layers
[
list
(
net2
.
_layer_names
).
index
(
'layer'
)]
self
.
assertEqual
(
layer
.
blobs
[
0
].
data
[
0
],
1
)
os
.
remove
(
net_file
)
def
test_phase
(
self
):
net_file
=
phase_net_file
()
for
phase
in
caffe
.
TRAIN
,
caffe
.
TEST
:
net
=
caffe
.
Net
(
net_file
,
phase
)
self
.
assertEqual
(
net
.
forward
()[
'phase'
],
phase
)
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