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On the Performance Of the Thread-Multiple Support Level In Thread-Based MPI

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dc.affiliation.dptoUC3M. Departamento de Informáticaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Arquitectura de Computadores, Comunicaciones y Sistemases
dc.contributor.authorDíaz-Martín, Juan-Carlos
dc.contributor.authorRico-Gallego, Juan-Antonio
dc.contributor.editorCarretero Pérez, Jesús
dc.contributor.editorGarcía Blas, Javier
dc.contributor.editorBarbosa, Jorge
dc.contributor.editorMorla, Ricardo
dc.contributor.otherUniversidad Carlos III de Madrid. Computer Architecture, Communications and Systems Group (ARCOS)
dc.date.accessioned2015-11-11T10:39:13Z
dc.date.available2015-11-11T10:39:13Z
dc.date.issued2014-11
dc.descriptionProceedings of: First International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014). Porto (Portugal), August 27-28, 2014.en
dc.description.abstractExascale systems are likely to have orders of magnitude less memory per core than current systems (though still large amounts of memory). As the amount of memory per core is dropping, going to thread-based models might be an unavoidable step towards the exascale milestone. AzequiaMPI is a thread-based open source full conformant implementation of MPI-1.3 for shared memory. We expose the techniques introduced in AzequiaMPI that, first, simplify the implementation and second, make the thread-based model to significantly improve the bandwidth of process-based implementations. Current version is also compliant with the MPI_THREAD_MULTIPLE thread-safety level, a feature of MPI-2.0 standard. The well known Thakur and Gropp MPI_THREAD_MULTIPLE tests show that both latency and bandwidth figures of AzequiaMPI significantly improve that of MPC-MPI, MPICH and Open MPI in an eight cores Intel Xeon E5620 Nehalem machine.en
dc.description.sponsorshipThe work presented in this paper has been partially supported by EU under the COST programme Action IC1305, ’Network for Sustainable Ultrascale Computing (NESUS)’.en
dc.format.extent5
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationCarretero Pérez, Jesús; et.al. (eds.). (2014) Proceedings of the First International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014): Porto, Portugal. Universidad Carlos III de Madrid, pp. 47-51.en
dc.identifier.isbn978-84-617-2251-8
dc.identifier.publicationfirstpage47
dc.identifier.publicationlastpage51
dc.identifier.publicationtitleProceedings of the First International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014): Porto, Portugalen
dc.identifier.urihttps://hdl.handle.net/10016/21979
dc.language.isoeng
dc.relation.eventdateAugust 27-28, 2014en
dc.relation.eventnumber1
dc.relation.eventplacePorto, Portugalen
dc.relation.eventtitleInternational Workshop on Sustainable Ultrascale Computing Systems (NESUS 2014)en
dc.rights.accessRightsopen access
dc.subject.ecienciaInformáticaes
dc.subject.otherMPI performanceen
dc.subject.otherThread-based MPIen
dc.subject.otherMPI_THREAD_MULTIPLEen
dc.subject.otherMulticore architecturesen
dc.titleOn the Performance Of the Thread-Multiple Support Level In Thread-Based MPIen
dc.typeconference paper*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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