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计算机工程 ›› 2019, Vol. 45 ›› Issue (7): 296-302. doi: 10.19678/j.issn.1000-3428.0051134

• 开发研究与工程应用 • 上一篇    下一篇

基于GSPN的锁步处理器系统可靠性建模与分析

李联1a,2, 杨淏天1b   

  1. 1. 西北工业大学 a. 软件与微电子学院;b. 计算机学院, 西安 710072;
    2. 西北工业大学 太仓长三角研究院, 江苏 太仓 215400
  • 收稿日期:2018-04-09 修回日期:2018-05-31 出版日期:2019-07-15 发布日期:2019-07-23
  • 作者简介:李联(1967-),女,助理研究员,主研方向为嵌入式系统;杨淏天,硕士研究生。
  • 基金资助:
    国家民用飞机专项科研技术研究类项目“高可靠操作系统内核关键技术研究”(MJ-2015-D-66);陕西省重点研发计划重大重点项目“事件/时间混合触发的实时操作系统技术与应用研究”(2016MSZD-G-8-1)。

GSPN-based Reliability Modeling and Analysis for Lock-step Processor System

LI Lian1a,2, YANG Haotian1b   

  1. 1a. School of Software and Microelectronics;1b. School of Computer Science, Northwestern Polytechnical University, Xi'an 710072, China;
    2. Taicang Yangtze River Delta Research Institute, Northwestern Polytechnical University, Taicang, Jiangsu 215400, China
  • Received:2018-04-09 Revised:2018-05-31 Online:2019-07-15 Published:2019-07-23

摘要: 针对锁步自监控处理器系统的可靠性建模与分析问题,在双机同步系统的基础上,构建一种具有错误自检、故障定位和失效修复功能的锁步自监控处理器系统,并描述系统架构与工作原理。根据系统特征实例化库所集和变迁集,建立基于广义随机Petri网的系统可靠性模型。通过与单处理器系统可靠性模型进行分析与对比,证明了该模型可靠性高,并基于参数对比实验为后续锁步系统设计提供理论支撑和技术方法。

关键词: 锁步系统, 错误自检, 故障定位, 广义随机Petri网, 可靠性

Abstract: Aiming at the reliability modeling and analysis of lock-step self-monitoring processor system,based on the two-machine synchronous system,a lock-step self-monitoring processor system with error self-checking,fault location and failure repair function is constructed.This paper describes the architecture and working principle of the system,and establishes a system reliability model based on Generalized Stochastic Petri Nets(GSPN) according to the system feature instantiation library set and transition set.Through analysis and comparison with single processor system reliability model,the results show that the model is highly reliable,and provides theoretical support and technical methods for subsequent lock-step system design based on parameter comparison experiments.

Key words: lock-step system, error self-checking, fault location, Generalized Stochastic Petri Nets(GSPN), reliability

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