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40573cd5
编写于
7月 03, 2017
作者:
S
Superjom
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差异文件
add net headers
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bad85f94
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2
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2 changed file
with
205 addition
and
0 deletion
+205
-0
paddle/framework/net.cc
paddle/framework/net.cc
+23
-0
paddle/framework/net.h
paddle/framework/net.h
+182
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未找到文件。
paddle/framework/net.cc
0 → 100644
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40573cd5
#include "paddle/framework/net.h"
namespace
paddle
{
namespace
framework
{
PlainNet
::
PlainNet
(
const
NetDesc
&
def
)
{}
virtual
Error
PlainNet
::
InferShape
()
{
for
(
auto
&
op
:
ops_
)
{
// wrong shape
auto
err
=
op
.
InferShape
();
if
(
!
err
)
return
err
;
}
// ok
return
Error
();
}
virtual
Error
PlainNet
::
Run
(
Scope
*
scope
=
nullptr
,
OpContext
*
context
=
nullptr
,
OpIndex
begin
=
-
1
,
OpIndex
end
=
-
1
)
const
{}
}
// namespace framework
}
// namespace paddle
paddle/framework/net.h
0 → 100644
浏览文件 @
40573cd5
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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/scope.h"
namespace
paddle
{
namespace
framework
{
// operator's index stored in a network.
typedef
int
OpIndex
;
/**
* NOTE following codes are some definitions of unimplemented concepts.
* We write some basic implementation to make Net compilable. These APIs will
* keep updating if the concepts related are implemented.
*/
// Operator's runtime context.
struct
OpContext
{
int
dev_id
;
DevType
dev_type
{
kCPU
};
enum
DevType
{
kCPU
,
kGPU
};
};
// Proto definitions, use `struct`s for simpility.
struct
VarDesc
{
std
::
string
type
;
std
::
vector
<
int
>
dims
;
};
struct
OpDesc
{
std
::
string
type
;
std
::
vector
<
VarDesc
>
inputs
;
std
::
vector
<
VarDesc
>
outputs
;
};
struct
struct
NetDesc
{
std
::
vector
<
OpDesc
>
ops
;
};
class
Operator
{
public:
Operator
(
const
OpDesc
&
def
)
{}
Error
InferShape
()
{}
Error
Run
()
{}
};
/**
* @brief Network that manage the operators it has.
*
* Network is the container and controller of a set of operators, user can build
* a real network from a NetDesc which is a protobuf message and use
* Network.Run() * to run all the operators in the network.
* A network object knows all Operators belonging to this network. Variables,
* which are inputs and outputs of these operators, are created and managed by a
* hierarchy of Scope objects.
*
* This is the base class of network, all the networks should implement the apis
* it defines.
*/
class
Net
{
public:
/**
* @brief Infer shapes of all inputs and outputs of operators.
*/
virtual
Error
InferShape
(
Scope
*
scope
)
override
;
/**
* @brief Run the network.
*
* Run all the operators and return success(true) or not, with all the
* variables are located in `scope`. `context` describes the detail execution
* environment for ops. `begin` and `end` specify the scope of `ops_` to run,
* If no positive indexes are provided, all operators in `ops_` will run.
*/
virtual
Error
Run
(
Scope
*
scope
,
OpContext
*
context
,
OpIndex
begin
=
-
1
,
OpIndex
end
=
-
1
)
const
=
0
;
/**
* @brief Add an Operator according to `def`.
*/
virtual
OpIndex
AddOp
(
const
proto
::
OpDef
&
def
)
=
0
;
/**
* @brief Add optimizer operators acctording to `attrs`.
*/
virtual
Error
AddOptimizerOps
(
const
OptAttrs
&
attrs
)
=
0
;
/**
* @brief Add backward operators.
*/
virtual
Error
AddBackwardOps
()
=
0
;
/**
* @brief Create a network.
*/
static
std
::
unique_ptr
<
Net
>
Create
(
const
NetDesc
&
def
=
NetDesc
());
};
/**
* @brief a basic implementation of Net.
*
* PlainNet is a very simple Net, it create a list of operators, and run them
* sequentially following the order they added.
*/
class
PlainNet
:
public
Net
{
public:
/**
* @brief Initialize a PlainNet.
*
* Initialize from a network describe by `def`. NetDesc is the definition of
* a network.
*/
PlainNet
(
const
NetDesc
&
def
);
/**
* Infer all the operators' input and output varialbes' shapes, will be called
* before every mini-batch
*/
virtual
Error
InferShape
(
Scope
*
scope
)
override
;
/**
* @brief Run the network.
*
* Run all the operators with the `scope`, if no scope is provided, default
* scope will be used instead. If no OpContext is provicded, default context
* will be used.
*/
virtual
Error
Run
(
Scope
*
scope
=
nullptr
,
OpContext
*
context
=
nullptr
,
OpIndex
begin
=
-
1
,
OpIndex
end
=
-
1
)
const
override
;
/**
* @brief Add an operator to this network.
*/
virtual
OpIndex
AddOp
(
const
proto
::
OpDef
&
def
)
override
;
/**
* @brief Add all optimizer operators related into the network.
*/
virtual
Error
AddOptimizerOps
(
const
OptAttrs
&
attrs
)
override
;
/**
* @brief Add all backward operators related into the network.
*/
virtual
Error
AddBackwardOps
()
override
;
protected:
/**
* @brief Build the network.
*
* Create operators accordding to `def`, will be called by the constructor.
*/
Error
BuildNet
(
const
NetDesc
&
def
);
/**
* @brief Add an operator into this network.
*
* Add a operator which is identified as `type` and has attributes described
* in `attrs`, the `inputs` are the keys of readonly input variables,
* `outputs` are keys of mutable output variables. An `OpIndex` will be
* returned to indicate the offset of the new operator in `ops_`.
*/
OpIndex
AddOp
(
const
std
::
string
&
type
,
const
std
::
vector
<
string
>
&
inputs
,
const
std
::
vector
<
string
>
&
outputs
,
const
OprAttr
&
attrs
=
OprAttr
());
private:
// the operators owned by `Network`.
std
::
vector
<
Operator
>
ops_
;
};
}
// namespace framework
}
// namespace paddle
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