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Rapport (Rapport De Recherche) Année : 2000

List Ranking on PC Clusters

Isabelle Guérin Lassous

Résumé

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.

Domaines

Autre [cs.OH]
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Dates et versions

inria-00072785 , version 1 (24-05-2006)

Identifiants

  • HAL Id : inria-00072785 , version 1

Citer

Isabelle Guérin Lassous, Jens Gustedt. List Ranking on PC Clusters. [Research Report] RR-3869, INRIA. 2000, pp.14. ⟨inria-00072785⟩
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