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体验新版 GitCode,发现更多精彩内容 >>
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a323b263
编写于
7月 16, 2018
作者:
X
Xin Pan
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电子邮件补丁
差异文件
clarify design
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doc/fluid/design/ir/draft.md
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doc/fluid/design/ir/draft.md
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@@ -43,17 +43,26 @@ a variable that is input or output of operation.
```
Node
```s are connected to other ```
Node
```s via inputs and outputs.
Other properties (maybe device placement information) can be added
to ```
Node
``` in the future if it's a
common requirement of many other ```
Pass
```es. Otherwise, it should live
in a ```
Node
``` wrapper class that is private to some ```
Pass
``` or be
a local member of a ```
Pass
```.
#### Graph
```
Graph
``` contains a list of ```
Node
```s.
```
Graph
``` contains a list of ```
Node
```s, which are connected to
each other via inputs and outputs.
TODO: Better definitions for the graph.
```
Graph
``` can also contain ```
Attribute
```s. ```
Attribute
```s
can be ``any`` thing. For example, it can be a list of "wraper"
nodes. The ```
wrapper
``` nodes compose ```
Node
```s and provide
helper method for execution. ```
Attribute
``` can also contain
other things that describe some properties of the ```
Graph
```.
helper method for execution or transformation. ```
Attribute
```
can also contain other things that describe some properties of
the ```
Graph
``` or ```
Graph
``` nodes. ```
Attribute
``` can be passed
across ```
Pass
```. However, it should be used with care.
#### Pass
...
...
@@ -70,12 +79,11 @@ modeling logic to a ```Graph``` that can be run efficiently while
maintaining the original modeling logic.
### Workflow
### Optimize Process
*
Program is first converted to Graph.
*
Graph goes through a series of Pass
*
Graph is transformed from raw model logic to a
form that is efficient to execute.
Graph->Pass1->Graph->Pass2->Graph->Pass3->Executor
Program->ProgramToGraph->
Graph->Pass1->Graph->Pass2->Graph->Pass3->Executor
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