计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (22): 13-16.

• 博士论坛 • 上一篇    下一篇

泡形互连网络的条件连通性度量

杨玉星1,3,王世英2   

  1. 1.山西大学 计算机与信息技术学院,太原 030006
    2.山西大学 数学科学学院,太原 030006
    3.安阳师范学院 计算机与信息工程学院,河南 安阳 455002
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-08-01 发布日期:2011-08-01

Conditional vertex connectivity measures for bubble-sort networks

YANG Yuxing1,3,WANG Shiying2   

  1. 1.School of Computer and Information Technology,Shanxi University,Taiyuan 030006,China
    2.School of Mathematical Sciences,Shanxi University,Taiyuan 030006,China
    3.School of Computer and Information Engineering,Anyang Normal University,Anyang,Henan 455002,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-08-01 Published:2011-08-01

摘要: n维泡形网络是设计大规模多处理机系统时最常用的互连网络拓扑结构之一,它以n维泡形图Bn为数学模型。F是连通图G的顶点子集,使得G-F不再连通且G-F的每个连通分支都有至少有n个顶点的F的势叫做G的Rk连通度。Rk连通度是衡量网络可靠性的一个重要参数。一般来说,网络的Rk连通度越大,其可靠性越高。研究了n维泡形网络的 k连通性;证明了在n维泡形网络中,当n≥3时,其R1连通度为2n-4;当n≥4 时,其R2连通度为4n-12。

关键词: 互连网络, 条件点连通度, 泡形网络, 可靠性

Abstract: The n-dimensional bubble-sort network is one of the most popular interconnection networks in large-scale multiprocessor systems and it takes n-dimensional bubble-sort graph Bn as mathematical model.The Rk -vertex-connectivity of a connected graph G is the minimum cardinality of a set of vertices whose deletion disconnects G and any vertex of the remaining components has at least k neighbors.The Rk -vertex-connectivity is one of the most parameters to evaluate the reliability of a network.In general,the larger the Rk -vertex-connectivity of a network is,the more reliable the network is.The Rk -vertex-connectivity of n-dimensional bubble-sort graphs is investigated.The theorems that the R1 -vertex-connectivity of Bn is 2n-4 for n≥3 and R2 -vertex-connectivity of Bn is 4n-12 for n≥4 are proved.

Key words: interconnection networks, conditional vertex connectivity, bubble-sort graphs, reliability