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hwloc: a Generic Framework for Managing Hardware Affinities in HPC Applications

hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorBROQUEDIS, François
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorCLET-ORTEGA, Jérôme
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorMOREAUD, Stéphanie
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorFURMENTO, Nathalie
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorGOGLIN, Brice
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorMERCIER, Guillaume
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorTHIBAULT, Samuel
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
dc.contributor.authorNAMYST, Raymond
dc.contributor.editorIEEE
dc.date.accessioned2024-04-15T09:50:04Z
dc.date.available2024-04-15T09:50:04Z
dc.date.issued2010-02-17
dc.date.conference2010-02-17
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/198304
dc.description.abstractEnThe increasing numbers of cores, shared caches and memory nodes within machines introduces a complex hardware topology. High-performance computing applications now have to carefully adapt their placement and behavior according to the underlying hierarchy of hardware resources and their software affinities. We introduce the Hardware Locality (hwloc) software which gathers hardware information about processors, caches, memory nodes and more, and exposes it to applications and runtime systems in a abstracted and portable hierarchical manner. hwloc may significantly help performance by having runtime systems place their tasks or adapt their communication strategies depending on hardware affinities. We show that hwloc can already be used by popular high-performance OpenMP or MPI software. Indeed, scheduling OpenMP threads according to their affinities or placing MPI processes according to their communication patterns shows interesting performance improvement thanks to hwloc. An optimized MPI communication strategy may also be dynamically chosen according to the location of the communicating processes in the machine and its hardware characteristics.
dc.language.isoen
dc.title.enhwloc: a Generic Framework for Managing Hardware Affinities in HPC Applications
dc.typeCommunication dans un congrès
dc.identifier.doi10.1109/PDP.2010.67
dc.subject.halInformatique [cs]/Système d'exploitation [cs.OS]
bordeaux.hal.laboratoriesLaboratoire Bordelais de Recherche en Informatique (LaBRI) - UMR 5800*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.conference.titlePDP 2010 - The 18th Euromicro International Conference on Parallel, Distributed and Network-Based Computing
bordeaux.countryIT
bordeaux.conference.cityPisa
bordeaux.peerReviewedoui
hal.identifierinria-00429889
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2010-02-19
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00429889v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2010-02-17&rft.au=BROQUEDIS,%20Fran%C3%A7ois&CLET-ORTEGA,%20J%C3%A9r%C3%B4me&MOREAUD,%20St%C3%A9phanie&FURMENTO,%20Nathalie&GOGLIN,%20Brice&rft.genre=unknown


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