• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

• 高性能计算 • 上一篇    下一篇

交错立方体在故障情形下的诊断度和诊断算法

王喜1,2,张书奎2   

  1. (1.苏州工业职业技术学院,江苏 苏州 215004;2.苏州大学计算机科学与技术学院,江苏 苏州 215006)
     
  • 收稿日期:2019-04-12 修回日期:2019-08-19 出版日期:2020-04-25 发布日期:2020-04-25
  • 基金资助:

    国家自然科学基金(61874087,61802304,61772417,61834005,61602377,61634004);陕西省国际科技合作计划(2018KW-006);陕西省科技统筹创新工程(2016KTZDGY02-04-02);陕西省重点研发计划(2017GY-060)

Diagnosability and a new diagnosis algorithm
of Cross-cube in fault situation

WANG Xi1,2,ZHANG Shu-kui2   

  1. (1.Suzhou Institute of Industrial Technology,Suzhou 215004;
    2.School of Computer Science and Technology,Soochow University,Suzhou 215006,China)
     
  • Received:2019-04-12 Revised:2019-08-19 Online:2020-04-25 Published:2020-04-25

摘要:

基于并行系统的超级计算机一直是学术界和工业界的研究热点。作为并行系统的基础,互连网络的性质直接决定了系统的性能。交错立方体作为超立方体的变形,是一种重要的互连网络,其与超立方体相比具有低直径等优越性。利用PMC诊断模型和图论方法,研究了交错立方体在故障情形下诊断度的精确值。然后提出该情形下的诊断算法,并分析了算法的时间复杂度。进一步通过仿真实验,验证在多种故障参数下,该诊断算法的高效性优于文献算法。本文的研究能够更加精确地度量交错立方体的可靠性。

关键词: 交错立方体, 诊断度, 诊断算法, 互连网络

Abstract:

Supercomputers based on parallel systems have always been a hot research topic in academia and industry. As the basis of parallel systems, the properties of interconnection network determine the system performance directly. As a variant of hypercube, cross-cube is a significant interconnection network, which has superior properties such as low diameter compared with hypercube. This paper uses PMC diagnostic model and graph theory method to study the exact value of the diagnostic degree of cross-cube in fault situation. Then, a diagnosis algorithm is proposed and its time complexity is analyzed. Furthermore, simulation experiments verify that the diagnostic algorithm has higher efficiency than some literature algorithms under a variety of fault parameters. Our research can measure the reliability of cross-cube more accurately.
 

 

Key words: cross-cube, diagnosability, diagnosis algorithm, interconnection network