[1]张娓娓,郭军.异构可重构计算系统的 Petri 网模型[J].计算机技术与发展,2018,28(09):112-117.[doi:10.3969/j.issn.1673-629X.2018.09.023]
 ZHANG Weiwei,GUO Jun.A Petri Net Model for Heterogeneous Reconfigurable Computing Systems[J].,2018,28(09):112-117.[doi:10.3969/j.issn.1673-629X.2018.09.023]
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异构可重构计算系统的 Petri 网模型()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
28
期数:
2018年09期
页码:
112-117
栏目:
智能、算法、系统工程
出版日期:
2018-09-10

文章信息/Info

Title:
A Petri Net Model for Heterogeneous Reconfigurable Computing Systems
文章编号:
1673-629X(2018)09-0112-06
作者:
张娓娓1郭军2
1.西安思源学院,陕西 西安 710038; 2.西北大学,陕西 西安 710069
Author(s):
ZHANG Wei-wei1GUO Jun1
1.Xi'an Siyuan University,Xi'an 710038,China; 2.Northwest University,Xi'an 710069,China
关键词:
可重构计算异构系统Petri 网形式化模型
Keywords:
reconfigurable computingheterogeneous systemPetri netformal model
分类号:
TP311
DOI:
10.3969/j.issn.1673-629X.2018.09.023
文献标志码:
A
摘要:
构建系统描述模型是设计可重构计算系统的重要环节。现有的系统建模方法主要分为形式化方法和非形式化方法两种,其中,非形式化模型缺乏严格的数学定义,给模型的分析和验证带来困难。采用形式化方法建立的系统模型无歧义,更适合分析和验证。Petri 网作为一种常用的形式化建模方法,有严格的数学定义和建模理论,但是,基本 etri 网在对可重构计算系统建模时存在数据流描述能力不足的问题。为此,对基本 Petri 网进行扩展,提出了一种数据流 Petri 网。首先给出了数据流 Petri 网的结构定义和动态行为规则,并定义了模型的图形符号表示方法。然后,分析了模型对可重构计算配置任务和计算任务的描述方法,在考虑硬件资源约束条件下,讨论了可重构计算系统的数据流 Petri 网建模技术。最后,通过一个典型的乘加运算器模型分析,表明该方法易于实现,所建模型结构简洁,便于分析验证系统功能。
Abstract:
The system description model plays an important role in the design of reconfigurable computing systems. The existing models can be divided into two categories:formal and informal methods. As informal models lack rigorous mathematical definitions,it is difficult to analyze and verify the functions of a system by informal models. On the contrary,formal models are unambiguous and suitable for functional verification. Petri nets is a commonly used formal method with rigorous mathematical definitions and modeling theory. But the basic Petri net could not meet the requirement of modeling reconfigurable computing systems without the ability of describing data flow.Thus we extend the basic Petri net and propose a kind of data flow Petri net(DPN). Firstly,we define the structure and firing rules of DPN mathematically. The graphic symbols of DPN are also defined. And then we introduce the DPN models of configurable tasks and computing tasks for reconfigurable computing systems. At the same time,the techniques for modeling reconfigurable computing systems by DPN are discussed with the consideration of hardware resource constrain. Finally,as an instance,a multiply-adder is analyzed by DPN models. The result indicates that the DPN model is simple to construct,easy to understand and convenient for functional verification.

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更新日期/Last Update: 2018-09-10