A self-stabilizing algorithm for the st-order problem

  • Authors:
  • Pranay Chaudhuri;Hussein Thompson

  • Affiliations:
  • Department of Computer Science, Mathematics and Physics, University of the West Indies, Bridgetown, Barbados;Department of Computer Science, Mathematics and Physics, University of the West Indies, Bridgetown, Barbados

  • Venue:
  • International Journal of Parallel, Emergent and Distributed Systems
  • Year:
  • 2008

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Abstract

Given a biconnected graph G with n nodes and a pair of unique nodes s and t, an st-ordering assigns s with 1 and t with n, and every other node with an integer between 2 and n - 1 (inclusive) such that it has at least one neighbor with a smaller number and at least one neighbor with a larger number. This paper presents a self-stabilizing distributed algorithm which assigns an st-ordering to G. The algorithm is shown to require at most O(n log n) rounds to converge to a correct solution.