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List Ranking on PC Clusters

Isabelle Guérin Lassous Jens Gustedt 1
1 RESEDAS - Software Tools for Telecommunications and Distributed Systems
INRIA Lorraine, LORIA - Laboratoire Lorrain de Recherche en Informatique et ses Applications
Abstract : We present two algorithms for the List Ranking Problem in the Coarse Grained Multicomputer model (CGM for short): if $p$ is the number of processors and $n$ the size of the list, then we give a deterministic one that achieves $O(\log p \log^* p)$ communication rounds and $O(n \log^* p)$ for the required communication cost and total computation time; and a randomized one that requires $O(\log p)$ communication rounds and $O(n)$ for the required communication cost and total computation time. We report on experimental studies of these algorithms on a PC cluster interconnected by a Myrinet network. As far as we know, it is the first portable code on this problem that runs on a cluster. With these experimental studies, we study the validity of the chosen CGM-model, and also show the possible gains and limits of such algorithms for PC clusters.
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Submitted on : Wednesday, May 24, 2006 - 10:53:31 AM
Last modification on : Friday, February 4, 2022 - 3:22:13 AM
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Isabelle Guérin Lassous, Jens Gustedt. List Ranking on PC Clusters. [Research Report] RR-3869, INRIA. 2000, pp.14. ⟨inria-00072785⟩

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