Early Deciding Synchronous Renaming in O( logf ) Rounds or Less

  • Dan Alistarh
  • Hagit Attiya
  • Rachid Guerraoui
  • Corentin Travers
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7355)


Renaming is a fundamental problem in distributed computing, in which a set of n processes need to pick unique names from a namespace of limited size. In this paper, we present the first early-deciding upper bounds for synchronous renaming, in which the running time adapts to the actual number of failures f in the execution. We show that, surprisingly, renaming can be solved in \(\emph{constant}\) time if the number of failures f is limited to \(O( \sqrt{n})\), while for general f ≤ n − 1 renaming can always be solved in O( logf ) communication rounds. In the wait-free case, i.e. for f = n − 1, our upper bounds match the Ω( logn ) lower bound of Chaudhuri et al. [13].


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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Dan Alistarh
    • 1
  • Hagit Attiya
    • 2
  • Rachid Guerraoui
    • 1
  • Corentin Travers
    • 3
  1. 1.EPFLSwitzerland
  2. 2.TechnionIsrael
  3. 3.Univ. BordeauxFrance

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