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On the I/O Volume in Out-of-Core Multifrontal Methods with a Flexible Allocation Scheme

hal.structure.identifierAlgorithms and Scheduling for Distributed Heterogeneous Platforms [GRAAL]
dc.contributor.authorAGULLO, Emmanuel
hal.structure.identifierAlgorithms and Scheduling for Distributed Heterogeneous Platforms [GRAAL]
dc.contributor.authorL'EXCELLENT, Jean-Yves
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierAlgorithms and high performance computing for grand challenge applications [SCALAPPLIX]
dc.contributor.authorGUERMOUCHE, Abdou
dc.date.accessioned2024-04-15T09:52:20Z
dc.date.available2024-04-15T09:52:20Z
dc.date.created2008
dc.date.issued2008
dc.date.conference2008
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/198504
dc.description.abstractEnSparse direct solvers, and in particular multifrontal methods, are widely used in various simulation problems. Because of their large memory requirements, the use of out-of-core solvers is compulsory for large-scale problems, where disks are used to extend the core memory. This study is at the junction of two previous independent works: it extends the problem of the minimization of the volume of I/O [4] in the multifrontal method to the more general flexible parent allocation algorithm [8]. We explain how to compute the I/O volume with respect to this scheme and propose an efficient greedy heuristic which significantly reduces the I/O volume on real-life problems in this new context.
dc.language.isoen
dc.source.titleProceedings of High Performance Computing for Computational Science - VECPAR 2008
dc.title.enOn the I/O Volume in Out-of-Core Multifrontal Methods with a Flexible Allocation Scheme
dc.typeCommunication dans un congrès
dc.subject.halInformatique [cs]/Calcul parallèle, distribué et partagé [cs.DC]
bordeaux.page328-335
bordeaux.hal.laboratoriesLaboratoire Bordelais de Recherche en Informatique (LaBRI) - UMR 5800*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.conference.titleHigh Performance Computing for Computational Science - VECPAR 2008
bordeaux.countryFR
bordeaux.title.proceedingProceedings of High Performance Computing for Computational Science - VECPAR 2008
bordeaux.peerReviewedoui
hal.identifierhal-00358627
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00358627v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Proceedings%20of%20High%20Performance%20Computing%20for%20Computational%20Science%20-%20VECPAR%202008&rft.date=2008&rft.spage=328-335&rft.epage=328-335&rft.au=AGULLO,%20Emmanuel&L'EXCELLENT,%20Jean-Yves&GUERMOUCHE,%20Abdou&rft.genre=unknown


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