Optimisation des E/S avec QoS dans les environnements multi-applicatif distribués

Adrien Lebre 1 Guillaume Huard 2 Yves Denneulin 3, 4
1 PARIS - Programming distributed parallel systems for large scale numerical simulation
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, ENS Cachan - École normale supérieure - Cachan, Inria Rennes – Bretagne Atlantique
2 MOAIS - PrograMming and scheduling design fOr Applications in Interactive Simulation
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
4 MESCAL - Middleware efficiently scalable
Inria Grenoble - Rhône-Alpes, LIG - Laboratoire d'Informatique de Grenoble
Abstract : Scientific applications which mainly exploit non sequential accesses are more and more affected by I/O performance. In the meantime, as cluster usage grows, several applications are often executed concurrently, competing for access to storage subsystems and, thus, potentially canceling optimisations brought by Parallel I/O libraries. This article addresses the issue of disjoint accesses generated by different concurrent applications in a cluster. In such a context, good trade-off has to be assessed between performance, fairness and response time. To achieve this, an I/O scheduling algorithm together with a "requests aggregator" that considers both application access patterns and global system load, have been designed and merged into a new generic framework pluggable into any I/O file system layer.
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Journal articles
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Submitted on : Thursday, April 26, 2012 - 10:14:59 AM
Last modification on : Tuesday, December 4, 2018 - 9:36:02 AM

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Adrien Lebre, Guillaume Huard, Yves Denneulin. Optimisation des E/S avec QoS dans les environnements multi-applicatif distribués. technique et sciences, Technique et Science Informatiques, 2008, 27 (3-4), ⟨10.3166/tsi.27.265-291⟩. ⟨hal-00691382⟩

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