Modeling power and energy of the task-parallel Cholesky factorization on multicore processors
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Otros documentos de la autoría: Alonso-Jordá, Pedro; Dolz, Manuel F.; Mayo, Rafael; Quintana-Orti, Enrique S.
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http://dx.doi.org/10.1007/s00450-012-0227-z |
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Título
Modeling power and energy of the task-parallel Cholesky factorization on multicore processorsFecha de publicación
2014-05Editor
Springer Berlin HeidelbergISSN
1865-2034; 1865-2042Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://link.springer.com/article/10.1007%2Fs00450-012-0227-zPalabras clave / Materias
Resumen
In this paper we introduce a model for the total energy consumption of the Cholesky factorization on a multicore processor. Our model assumes a task-parallel execution of the factorization process, with concurrency ... [+]
In this paper we introduce a model for the total energy consumption of the Cholesky factorization on a multicore processor. Our model assumes a task-parallel execution of the factorization process, with concurrency leveraged via a run-time as those recently proposed in projects like SMPSs, PLASMA or libflame, and decomposes the power usage into its system, static and dynamic components. A few simple experiments provide experimental data (parameters) with enough accuracy to assemble the model, which can then be used to estimate the actual power dissipation and energy consumption of the global algorithm. Experimental results on an 8-core platform equipped with Intel Xeon processors reveal the precision of the model. [-]
Publicado en
Computer Science - Research and Development, 2014, vol. 29, núm. 2Derechos de acceso
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