计算机科学 ›› 2010, Vol. 37 ›› Issue (8): 83-87.

• 计算机网络与信息安全 • 上一篇    下一篇

LHL-立方体互连网络及其性质

李勇,樊建席,王喜,周吴军   

  1. (苏州大学计算机科学与技术学院 苏州215006)
  • 出版日期:2018-12-01 发布日期:2018-12-01
  • 基金资助:
    本文受国家自然科学基金项目(编号:60873047)和江苏省自然科学基金项目(编号:BK2008154)资助。

LHL-cube Interconnection Networks and their Properties

LI Yong,FAN Jian-xi,WANG Xi,ZHOU Wu-jun   

  • Online:2018-12-01 Published:2018-12-01

摘要: 并行计算系统一直是计算机科学中的重要研究领域,其互连网络的拓扑性质对整个网络的性能起着非常重要的作用。目前已经提出多种互连网络,其中超立方体具有对数级的直径、高连通度、对称性等很好的性质,故被用作多种并行机的处理器连接的拓扑结构。然而,超立方体并非所有性质都是最优的互连网络,且超立方体的许多变型结构具有许多比超立方体更好的性质,其中已经证明了局部扭立方体在直径、Hamilton连通性等方面都优于超立方体。给出在超立方体与局部扭立方体的顶点间的一种连接方式—超连接,从而得到一种称为LHL-立方体的新型网络,并对这种网络的以下性质进行了研究:顶点连通度、边连通度、Hamilton连通性、直径。研究结果表明,一个,维LHL-立方体是一个具有2n个顶点和n2n-1条边的n-正则图,n维LHL-立方体的顶点连通度和边连通度均为n,且是Hamilton连通的,直径上界为[n/2]+3。

关键词: 超立方体,局部扭立方体,互连网络,连通度,Hamilton性质,直径

Abstract: The parallel processing system is one of the research focuses on computer science. The properties of the network are very crucial because they determine the performance of the whole network. Many interconnection network topologies have been proposed. Hypercube topology has enjoyed popularity due to many of its attractive properties, including small diameter, strong connectivity and symmetry. But the hypercube is not the best topology on all aspects. Some variants of the hypercube have better properties than the hypercube. Among these variants the locally twisted cube has drawn a great deal of attention from the researchers. Its superior properties over the hypercube on diameter, Hamilton connectivity and some other properties have been proved. This paper gave a kind of connection-the hyper connection between the nodes of the hypercube and the nodes of the locally twisted cube. Thus, a new interconnection network called a LHL-cube was obtained by using this kind of connection. These properties were studied in this paper:vertex connectivity,link connectivity, Hamilton connectivity and diameter. The results show that the vertex connectivity and the link connectivity of then dimension LHL-cube are all n. Then it was proved that the n dimension LHL-cube is Hamilton connecuvmy and the upper bound diameter is [n/2]+3.

Key words: Hypercube, Locally twisted cube, Interconnection network, Connectivity, Hamilton property, Diameter

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