Afficher la notice abrégée

Vers des supports d'exécution capables d'exploiter les machines multicœurs hétérogènes

hal.structure.identifierEfficient runtime systems for parallel architectures [RUNTIME]
hal.structure.identifierLaboratoire Bordelais de Recherche en Informatique [LaBRI]
dc.contributor.authorAUGONNET, Cédric
dc.date.accessioned2024-04-15T09:55:32Z
dc.date.available2024-04-15T09:55:32Z
dc.date.issued2008
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/198764
dc.description.abstractEnApproaching the theoretical performance of heterogeneous multicore architectures, equipped with specialized accelerators, is a challenging issue. Unlike regular CPUs that can transparently access the whole global memory address range, accelerators usually embed local memory on which they perform all their computations using a specific instruction set. While many research efforts have been devoted to offloading parts of a program over such coprocessors, the real challenge is to find a programming model providing a unified view of all available computing units. In this document, we present an original runtime system providing a high-level, unified execution model allowing seamless execution of tasks over the underlying heterogeneous hardware. The runtime is based on a hierarchical memory management facility and on a codelet scheduler. We demonstrate the efficiency of our solution with a LU decomposition for both homogeneous (3.8 speedup on 4 cores) and heterogeneous machines (95% efficiency). We also show that a "granularity aware" scheduling can improve execution time by 35%.
dc.language.isofr
dc.titleVers des supports d'exécution capables d'exploiter les machines multicœurs hétérogènes
dc.typeRapport
dc.subject.halInformatique [cs]/Système d'exploitation [cs.OS]
dc.subject.halInformatique [cs]/Calcul parallèle, distribué et partagé [cs.DC]
bordeaux.page48
bordeaux.hal.laboratoriesLaboratoire Bordelais de Recherche en Informatique (LaBRI) - UMR 5800*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.type.reporttu
hal.identifierinria-00289361
hal.version1
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//inria-00289361v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.title=Vers%20des%20supports%20d'ex%C3%A9cution%20capables%20d'exploiter%20les%20machines%20multic%C5%93urs%20h%C3%A9t%C3%A9rog%C3%A8nes&rft.atitle=Vers%20des%20supports%20d'ex%C3%A9cution%20capables%20d'exploiter%20les%20machines%20multic%C5%93urs%20h%C3%A9t%C3%A9rog%C3%A8nes&rft.date=2008&rft.spage=48&rft.epage=48&rft.au=AUGONNET,%20C%C3%A9dric&rft.genre=unknown


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée