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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.authorGOGLIN, Brice
dc.date.accessioned2024-04-15T09:56:33Z
dc.date.available2024-04-15T09:56:33Z
dc.date.issued2007
dc.date.conference2007-11-19
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/198846
dc.description.abstractEnThe ever-growing level of parallelism within the multi-core and multi-processor nodes in clusters leads to the generalization of distributed memory banks and busses with non-uniform access costs. These NUMA effects have been mostly studied in the context of threads scheduling and are known to have an influence on high-performance networking in clusters. We present an evaluation of their impact on communication performance in multi-Opteron machines. NUMA effects exhibit a strong and asymmetric impact on high-bandwidth communications while the impact on latency remains low. We then describe the implementation of an automatic NUMA-aware placement strategy which achieves as good communication performance as a careful manual placement, and thus ensures performance portability by gathering hardware topology information and placing communicating tasks accordingly.
dc.language.isoen
dc.subject.enHigh-Speed Networks
dc.subject.enNUMA
dc.subject.enOpteron
dc.subject.enHypertransport
dc.subject.enPlacement
dc.subject.enPerformance
dc.title.enImpact of NUMA Effects on High-Speed Networking with Multi-Opteron Machines
dc.typeCommunication dans un congrès
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.titlePDCS
bordeaux.countryUS
bordeaux.conference.cityCambridge
bordeaux.peerReviewedoui
hal.identifierinria-00175747
hal.version1
hal.invitednon
hal.proceedingsoui
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00175747v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2007&rft.au=MOREAUD,%20St%C3%A9phanie&GOGLIN,%20Brice&rft.genre=unknown


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