Index routing for task allocation in Grids

نویسندگان

  • Vandy Berten
  • Bruno Gaujal
چکیده

In this paper we show how index routing policies can be used in practice for task allocation in computational grids. We provide a fast algorithm which can be used off-line or even on-line to compute the index tables. We also report numerous simulations providing numerical evidence of the great efficiency of our index routing policy as well as its robustness with respect to parameter changes. Key-words: Index Policy, Optimal Routing, Markov Decision Process, Grids ∗ FNRS, Département d’Informatique, Université Libre de Bruxelles, Belgium (Email: [email protected]) † INRIA, Lab. ID-IMAG (CNRS, INPG, INRIA, UJF), 51, Av. J. Kunztmann, Montbonnot, France (Email: [email protected]) Allocations de tâches sur grilles par politiques d’index Résumé : Dans cet article, nous montrons comment des politiques de routage utilisant des critères de coûts locaux (ou index) peuvent être utilisées en pratique pour faire de l’allocation de tâches dans des grilles de calcul. Nous fournissons un algorithme rapide de calcul des tables d’index, qui peut être utilisé hors-ligne mais aussi en-ligne. Cette technique est ensuite validée par de nombreuses simulations qui montrent la grande efficacité de notre politique d’index ainsi que sa grande robustesse aux changements de paramètres. Mots-clés : Politiques d’index, Stratégie de Routage Optimal, Processus de Décision Markoviens, Grilles Index routing for task allocation in Grids 3

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تاریخ انتشار 2006