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dc.contributor.authorAliaga Estellés, José Ignacio
dc.contributor.authorBarreda Vayá, Maria
dc.contributor.authorDolz, Manuel F.
dc.contributor.authorQuintana-Orti, Enrique S.
dc.date.accessioned2015-09-16T14:32:03Z
dc.date.available2015-09-16T14:32:03Z
dc.date.issued2015-05
dc.identifier.issn1865-2034
dc.identifier.issn1865-2042
dc.identifier.urihttp://hdl.handle.net/10234/132605
dc.description.abstractIn this paper we conduct a detailed analysis of the sources of power dissipation and energy consumption during the execution of current dense linear algebra kernels on multicore processors, binding these two metrics together with performance to the arithmetic intensity of the operations. In particular, by leveraging the RAPL interface of an Intel E5 (“Sandy Bridge”) six-core CPU, we decompose the power-energy duo into its core (mainly due to floating-point units and cache), RAM (off-chip accesses), and uncore components,performing a series of illustrative experiments for a range of memory-bound to CPU-bound high performance kernels. Additionally, we investigate the energy proportionality of these three architecture components for the execution of linear algebra routines on the Intel E5.ca_CA
dc.format.extent8 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherSpringer Berlin Heidelbergca_CA
dc.relation.isPartOfComputer Science - Research and Development, 2015, vol. 30, núm. 2ca_CA
dc.rights© Springer-Verlag Berlin Heidelberg 2014 © Springer International Publishing AG, Part of Springer Science+Business Media. "The final publication is available at Springer via http://dx.doi.org/10.1007/s00450-014-0263-y"ca_CA
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/*
dc.subjectDense linear algebra librariesca_CA
dc.subjectEnergy efficiencyca_CA
dc.subjectEnergy proportionalityca_CA
dc.subjectMulticore processorsca_CA
dc.titleAre our dense linear algebra libraries energy-friendly?. Time–power–energy trade-offs in BLAS and LAPACKca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttp://dx.doi.org/10.1007/s00450-014-0263-y
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_CA
dc.relation.publisherVersionhttp://link.springer.com/article/10.1007%2Fs00450-014-0263-yca_CA


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