Estimating the execution context for refining submission strategies on production grids

Diane Lingrand 1 Johan Montagnat 1 Tristan Glatard 1
1 Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe MODALIS
Laboratoire I3S - SPARKS - Scalable and Pervasive softwARe and Knowledge Systems
Abstract : In this paper, we study grid job submission latencies. The latency highly impacts performances on production grids, due to its high values and variations as well as the presence of outliers. It is particularly prejudicial for determining the status and expected duration of jobs. In a previous work, a probabilistic model of the latency is presented that allows to estimate the best timeout value considering a given distribution of jobs latencies. This timeout value is then used in a job resubmission strategy. The purpose of this paper is to evaluate to what extent updating this model with relevant contextual parameters can help to refine the latency estimation. Experiments on the EGEE grid show that the choice of the resource broker or the computing site has a statistically significant influence on the jobs latency. We exploit this contextual information to propose a reliable job submission strategy.
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Technical Report I3S laboratory, number I3S/RR-2007-22-FR, Sophia Antipolis. 2007, pp.22
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Diane Lingrand, Johan Montagnat, Tristan Glatard. Estimating the execution context for refining submission strategies on production grids. Technical Report I3S laboratory, number I3S/RR-2007-22-FR, Sophia Antipolis. 2007, pp.22. 〈hal-00461623〉

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