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8f37c3c2
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8f37c3c2
编写于
1月 15, 2018
作者:
W
wanghaoshuang
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电子邮件补丁
差异文件
Fix sequence scale functor cuda kernel
1. Fix kernel 2. Add more test case
上级
45cf2341
变更
2
显示空白变更内容
内联
并排
Showing
2 changed file
with
47 addition
and
24 deletion
+47
-24
paddle/operators/math/sequence_scale.cu
paddle/operators/math/sequence_scale.cu
+10
-5
python/paddle/v2/fluid/tests/test_warpctc_op.py
python/paddle/v2/fluid/tests/test_warpctc_op.py
+37
-19
未找到文件。
paddle/operators/math/sequence_scale.cu
浏览文件 @
8f37c3c2
...
...
@@ -13,16 +13,21 @@ See the License for the specific language governing permissions and
limitations under the License. */
#include "paddle/operators/math/sequence_scale.h"
#include "paddle/platform/cuda_helper.h"
namespace
paddle
{
namespace
operators
{
namespace
math
{
template
<
typename
T
>
using
platform
::
PADDLE_CUDA_NUM_THREADS
;
template
<
typename
T
,
int
BlockSize
>
__global__
void
SequenceScaleKernel
(
T
*
seq
,
size_t
*
lod
,
const
T
*
scales
,
const
size_t
seq_width
)
{
if
(
threadIdx
.
x
<
(
lod
[
blockIdx
.
x
+
1
]
-
lod
[
blockIdx
.
x
])
*
seq_width
)
{
int
idx
=
lod
[
blockIdx
.
x
]
*
seq_width
+
threadIdx
.
x
;
for
(
int
i
=
threadIdx
.
x
;
i
<
(
lod
[
blockIdx
.
x
+
1
]
-
lod
[
blockIdx
.
x
])
*
seq_width
;
i
+=
BlockSize
)
{
int
idx
=
lod
[
blockIdx
.
x
]
*
seq_width
+
i
;
seq
[
idx
]
*=
scales
[
blockIdx
.
x
];
}
}
...
...
@@ -39,8 +44,8 @@ class ScaleLoDTensorFunctor<platform::CUDADeviceContext, T> {
framework
::
LoD
abs_offset_lod
=
framework
::
ToAbsOffset
(
lod
);
T
*
seq_data
=
seq
.
mutable_data
<
T
>
(
context
.
GetPlace
());
int
threads
=
1024
;
SequenceScaleKernel
<
T
><<<
num_seq
,
threads
,
0
,
context
.
stream
()
>>>
(
SequenceScaleKernel
<
T
,
PADDLE_CUDA_NUM_THREADS
><<<
num_seq
,
PADDLE_CUDA_NUM_THREADS
,
0
,
context
.
stream
()
>>>
(
seq_data
,
abs_offset_lod
[
level
].
data
(),
scales
,
seq_width
);
}
};
...
...
python/paddle/v2/fluid/tests/test_warpctc_op.py
浏览文件 @
8f37c3c2
...
...
@@ -4,6 +4,8 @@ import numpy as np
from
op_test
import
OpTest
from
test_softmax_op
import
stable_softmax
CUDA_BLOCK_SIZE
=
512
class
CTCForward
(
object
):
def
__init__
(
self
,
softmax
,
softmax_lod
,
labels
,
labels_lod
,
blank
,
...
...
@@ -154,39 +156,45 @@ class CTCForward(object):
class
TestWarpCTCOp
(
OpTest
):
def
config
(
self
):
self
.
batch_size
=
4
self
.
num_classes
=
8
self
.
logits_lod
=
[[
0
,
4
,
5
,
8
,
11
]]
self
.
labels_lod
=
[[
0
,
3
,
4
,
8
,
12
]]
self
.
blank
=
self
.
num_classes
-
1
self
.
norm_by_times
=
False
def
setUp
(
self
):
self
.
op_type
=
"warpctc"
self
.
config
()
batch_size
=
4
num_classes
=
8
logits_lod
=
[[
0
,
4
,
5
,
8
,
11
]]
logits
=
np
.
random
.
uniform
(
0.1
,
1.0
,
[
11
,
num_classes
]).
astype
(
"float32"
)
logits
=
np
.
random
.
uniform
(
0.1
,
1.0
,
[
self
.
logits_lod
[
0
][
-
1
],
self
.
num_classes
]).
astype
(
"float32"
)
softmax
=
np
.
apply_along_axis
(
stable_softmax
,
1
,
logits
)
labels_lod
=
[[
0
,
3
,
4
,
8
,
12
]]
# labels should not be blank
labels
=
np
.
random
.
randint
(
0
,
num_classes
-
1
,
[
12
,
1
],
dtype
=
"int32"
)
blank
=
num_classes
-
1
norm_by_times
=
False
labels
=
np
.
random
.
randint
(
0
,
self
.
num_classes
-
1
,
[
self
.
labels_lod
[
0
][
-
1
],
1
],
dtype
=
"int32"
)
ctc
=
CTCForward
(
softmax
,
logits_lod
,
labels
,
labels_lod
,
blank
,
norm_by_times
)
ctc
=
CTCForward
(
softmax
,
self
.
logits_lod
,
labels
,
self
.
labels_lod
,
self
.
blank
,
self
.
norm_by_times
)
loss
=
ctc
.
forward
()
max_sequence_length
=
0
for
i
in
range
(
batch_size
):
max_sequence_length
=
max
(
max_sequence_length
,
logits_lod
[
0
][
i
+
1
]
-
logits_lod
[
0
][
i
])
for
i
in
range
(
self
.
batch_size
):
max_sequence_length
=
max
(
max_sequence_length
,
self
.
logits_lod
[
0
][
i
+
1
]
-
self
.
logits_lod
[
0
][
i
])
self
.
gradient
=
np
.
zeros
(
[
max_sequence_length
,
batch_size
,
num_classes
],
dtype
=
"float32"
)
[
max_sequence_length
,
self
.
batch_size
,
self
.
num_classes
],
dtype
=
"float32"
)
self
.
inputs
=
{
"Logits"
:
(
logits
,
logits_lod
),
"Label"
:
(
labels
,
labels_lod
)
"Logits"
:
(
logits
,
self
.
logits_lod
),
"Label"
:
(
labels
,
self
.
labels_lod
)
}
self
.
outputs
=
{
"Loss"
:
loss
}
self
.
attrs
=
{
"blank"
:
blank
,
"norm_by_times"
:
norm_by_times
}
self
.
attrs
=
{
"blank"
:
self
.
blank
,
"norm_by_times"
:
self
.
norm_by_times
}
def
test_check_output
(
self
):
self
.
check_output
()
...
...
@@ -196,5 +204,15 @@ class TestWarpCTCOp(OpTest):
self
.
check_grad
([
"Logits"
],
"Loss"
,
max_relative_error
=
0.007
)
class
TestWarpCTCOpCase1
(
TestWarpCTCOp
):
def
config
(
self
):
self
.
batch_size
=
4
self
.
num_classes
=
CUDA_BLOCK_SIZE
+
2
self
.
logits_lod
=
[[
0
,
4
,
5
,
8
,
11
]]
self
.
labels_lod
=
[[
0
,
3
,
4
,
8
,
12
]]
self
.
blank
=
0
self
.
norm_by_times
=
False
if
__name__
==
"__main__"
:
unittest
.
main
()
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