On k-ary n-cubes: theory and applications

  • Authors:
  • Weizhen Mao;David M. Nicol

  • Affiliations:
  • Department of Computer Science, College of William and Mary, P.O. Box 8795, Williamsburg, VA;Department of Computer Science, Dartmouth College, Hanover, NH

  • Venue:
  • Discrete Applied Mathematics - Special issue: Algorithmic aspects of communication
  • Year:
  • 2003

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Abstract

Many parallel processing applications have communication patterns that can be viewed as graphs called k-ary n-cubes, whose special cases include rings, hypercubes and tori. In this paper, combinatorial properties of k-ary n-cubes are examined. In particular, the problem of characterizing the subgraph of a given number of nodes with the maximum edge count is studied. These theoretical results are then applied to compute a lower bounding function in branch-and-bound partitioning algorithms and to establish the optimality of some irregular partitions.