Fault-tolerant cycle embedding in dual-cube with node faults

  • Authors:
  • Yamin Li;Shietung Peng;Wanming Chu

  • Affiliations:
  • Department of Computer Science, Hosei University, Tokyo 184 8584, Japan.;Department of Computer Science, Hosei University, Tokyo 184 8584, Japan.;Department of Computer Hardware, University of Aizu, Aizu-Wakamatsu 965 8580, Japan

  • Venue:
  • International Journal of High Performance Computing and Networking
  • Year:
  • 2005

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Abstract

A low-degree dual-cube was proposed as an alternative to thehypercubes. A dual-cube DC(m) has m + 1 links per node, where m isthe degree of a cluster (m-cube) and one more link is used forconnecting to a node in another cluster. There are 2m+1clusters and hence the total number of nodes in a DC(m) is22m+1. In this paper, by using Gray code, we show thatthere exists a fault-free cycle containing at least22m+1-2f nodes in DC(m), m≥3, with f≤m faultynodes.