Optimization of Jobs Submission on the EGEE Production Grid: Modeling Faults Using Workload |
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| Authors: | Diane Lingrand Johan Montagnat Janusz Martyniak David Colling |
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| Affiliation: | 1.University of Nice—Sophia Antipolis/CNRS,Nice,France;2.The Blackett Lab,Imperial College London,London,UK |
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| Abstract: | It is commonly observed that production Grids are inherently unreliable. The aim of this work is to improve Grid application
performances by tuning the job submission system. A stochastic model, capturing the behavior of a complex Grid workload management
system is proposed. To instantiate the model, detailed statistics are extracted from dense Grid activity traces. The model
is exploited for optimizing a simple job resubmission strategy. It provides quantitative inputs to improve job submission
performance and it enables the impact of faults and outliers on Grid operations to be quantified. |
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