Decentralized extrema-finding in circular configurations of processors

  • Authors:
  • D. S. Hirschberg;J. B. Sinclair

  • Affiliations:
  • Rice Univ., Houston, TX;Rice Univ., Houston, TX

  • Venue:
  • Communications of the ACM
  • Year:
  • 1980

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Abstract

This note presents an efficient algorithm, requiring O(n log n) message passes, for finding the largest (or smallest) of a set of n uniquely numbered processors arranged in a circle, in which no central controller exists and the number of processors is not known a priori.