Optimal simulations between mesh-connected arrays of processors

  • Authors:
  • S. Rao Kosaraju;Mikhail J. Atallah

  • Affiliations:
  • Johns Hopkins Univ., Baltimore, MD;Purdue Univ., West Lafayette, IN

  • Venue:
  • Journal of the ACM (JACM)
  • Year:
  • 1988

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Abstract

Let G and H be two mesh-connected arrays of processors, where G = g1, X g2 X … X g1, H = h1 x h2 x … x hd, and g1 … g1 ≤ h1 … hd. The problem of simulating G by H is considered and the best possible simulation in terms of the gi's and hi's is characterized by giving such a simulation and proving its optimality in the worst-case sense. Also the same bound on the average cost of encoding the edges of G as distinct paths in H is established.