基于数据集约束的并行数据流建模与描述研究  

Modeling and description research of parallel data flow based on data collections distribution

作　　者：高伟[1] 何丰[1] 

机构地区：[1]北方民族大学计算机科学与工程学院,宁夏银川750021

出　　处：《计算机工程与设计》2010年第6期1180-1183,共4页Computer Engineering and Design

基　　金：宁夏自然科学基金项目(NZ0692);计算机应用技术重点学科基金项目(NJG2006.311)

摘　　要：为了简化带有数据集约束的抽象网格工作流语言(AGWL)的工作流建立过程,提出了一种基于扩展面向对象Petri网(DOPN)建模并行数据流的方法。研究了AGWL并行数据流的特点,在此基础上对面向对象Petri网进行扩展,设计了基于扩展面向对象Petri网描述的并行数据流模型,之后定义一套从DOPN到AGWL的映射规则。最后通过一个应用实例对一个带有数据集约束的数据流建立DOPN描述,并生成AGWL数据流代码。该方法简化了AGWL工作流建立过程,并保留了流程验证和仿真的扩展性。In order to simplify the establish procedure of data collection restraint workflow on abstract grid workflow language（AGWL）.A method of parallel data streams modeling base-on expanded object-oriented Petri net（DOPN） is presented.The characteristic of parallel data streams is studied.On this basis, object-oriented Petri net is expanded.And the model of parallel data streams based on expanded object-oriented Petri net is designed.Then a set of mapping rules from DOPN to the AGWL is defined.Finally, through an application example, a data set restraint dataflow is described with DOPN, and then AGWL code of dataflow is produced.This method would make the procedure of establish of AGWL data collection simplified, and the extension of confirmation and simulation of the workflow is retained.

关 键 词：网格 面向对象PETRI网 数据集 数据流 抽象工作流语言 

分 类 号：TP301.2[自动化与计算机技术—计算机系统结构]