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1acad21b
编写于
1月 30, 2018
作者:
F
fengjiayi
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电子邮件补丁
差异文件
init reader.h and reader.cc files
上级
311334e0
变更
2
隐藏空白更改
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并排
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2 changed file
with
116 addition
and
0 deletion
+116
-0
paddle/framework/reader.cc
paddle/framework/reader.cc
+51
-0
paddle/framework/reader.h
paddle/framework/reader.h
+65
-0
未找到文件。
paddle/framework/reader.cc
0 → 100644
浏览文件 @
1acad21b
// Copyright (c) 2018 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.
#include "paddle/framework/reader.h"
namespace
paddle
{
namespace
framework
{
DDim
Reader
::
shape
(
int
idx
)
const
{
PADDLE_ENFORCE_LT
(
idx
,
shapes_
.
size
(),
"Cannot get the %d'th shape, 'shapes_' only has %d elements."
,
idx
,
shapes_
.
size
());
}
int
RandomReader
::
ReadNext
(
std
::
vector
<
LoDTensor
>*
outs
)
{
PADDLE_ENFORCE_EQ
(
shapes_
.
size
(),
outs
.
size
(),
"shapes_.size() is %d, while outs.size() is %d. They are not equal."
,
shapes_
.
size
(),
outs
.
size
());
std
::
minstd_rand
engine
;
unsigned
int
seed
=
std
::
random_device
()();
engine
.
seed
(
seed
);
std
::
uniform_real_distribution
<
float
>
dist
(
min_
,
max_
);
for
(
int
idx
=
0
;
idx
<
shapes_
.
size
();
++
idx
)
{
DDim
shape
=
shapes_
[
idx
];
LoDTensor
*
out
=
outs
[
idx
];
int64_t
numel
=
out
->
numel
();
PADDLE_ENFORCE_EQ
(
product
(
shape
),
numel
,
"The product of %d'th shape is %lld, while the "
"corresponding out's numel is %lld. They are not equal."
,
idx
,
product
(
shape
),
numel
);
for
(
int64_t
i
=
0
;
i
<
numel
,
++
i
)
{
out
[
i
]
=
dist
(
engine
);
}
}
return
0
;
}
}
// namespace framework
}
// namespace paddle
paddle/framework/reader.h
0 → 100644
浏览文件 @
1acad21b
// Copyright (c) 2018 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.
#pragma once
#include "paddle/framework/ddim.h"
#include "paddle/framework/lod_tensor.h"
namespace
paddle
{
namespace
framework
{
class
Reader
{
public:
virtual
int
ReadNext
(
std
::
vector
<
LoDTensor
>*
outs
)
=
0
;
DDim
shape
(
int
idx
)
const
;
private:
std
::
vector
<
DDim
>
shapes_
;
};
// file readers
class
RandomReader
:
public
Reader
{
public:
RandomReader
(
const
std
::
vector
<
DDim
>&
shapes
,
float
min
,
float
max
)
:
shapes_
(
shapes
),
min_
(
min
),
max_
(
max
)
{}
int
ReadNext
(
std
::
vector
<
LoDTensor
>*
outs
)
override
;
private:
float
min_
;
float
max_
;
};
// decorators
class
BatchReader
:
public
Reader
{
public:
BatchReader
(
const
Reader
*
reader
)
:
reader_
(
reader
)
{}
int
ReadNext
(
std
::
vector
<
LoDTensor
>*
outs
)
override
;
private:
const
Reader
*
reader_
;
};
class
ShuffleReader
:
public
Reader
{
public:
ShuffleReader
(
const
Reader
*
reader
)
:
reader_
(
reader
)
{}
int
ReadNext
(
std
::
vector
<
LoDTensor
>*
outs
)
override
;
private:
const
Reader
*
reader_
;
};
}
// namespace framework
}
// namespace paddle
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