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Leveraging Task-Parallelism in Energy-Efficient ILU Preconditioners
| dc.contributor.author | Aliaga Estellés, José Ignacio | |
| dc.contributor.author | Dolz, Manuel F. | |
| dc.contributor.author | Martín Huertas, Alberto F. | |
| dc.contributor.author | Mayo, Rafael | |
| dc.contributor.author | Quintana-Orti, Enrique S. | |
| dc.date.accessioned | 2013-04-25T09:36:38Z | |
| dc.date.available | 2013-04-25T09:36:38Z | |
| dc.date.issued | 2012 | |
| dc.identifier.citation | Aliaga, José I. ; Dolz, Manuel F. ; Martín, Alberto F. ; Mayo, Rafael; Quintana Ortí, Enrique S. "Leveraging Task-Parallelism in Energy-Efficient ILU Preconditioners ". En: ICT as Key Technology against Global Warming – Second International Conference, ICT-GLOW 2012, Vienna, Austria, September 6, 2012. Proceedings / Auweter, Axel [et al.] (Eds.). Berlin : Springer, 2012. (Lecture Notes in Computer Science; 7453) . ISBN: 978-3-642-32605-9, pp. 55-63 | ca_CA |
| dc.identifier.isbn | 978-3-642-32605-9 | |
| dc.identifier.issn | 0302-9743 | |
| dc.identifier.issn | 1611-3349 | |
| dc.identifier.uri | http://hdl.handle.net/10234/62216 | |
| dc.description.abstract | We analyze the energy-performance balance of a task-parallel computation of an ILU-based preconditioner for the solution of sparse linear systems on multi-core processors. In particular, we elaborate a theoretical model for the power dissipation, and employ it to explore the effect of the processor power states on the time-power-energy interaction for this calculation. Armed with the insights gained from this study, we then introduce two energy-saving mechanisms which, incorporated into the runtime in charge of the parallel execution of the algorithm, improve energy efficiency by 6.9%, with a negligible impact on performance. | ca_CA |
| dc.format.extent | 9 p. | ca_CA |
| dc.format.mimetype | application/pdf | ca_CA |
| dc.language.iso | eng | ca_CA |
| dc.publisher | Springer Berlin Heidelberg | ca_CA |
| dc.relation.isPartOfSeries | Lecture Notes in Computer Science;7453 | |
| dc.rights | © Springer, Part of Springer Science+Business Media | ca_CA |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
| dc.subject | Large sparse linear systems | ca_CA |
| dc.subject | Task-level parallelism | ca_CA |
| dc.subject | Preconditioned conjugate gradients | ca_CA |
| dc.title | Leveraging Task-Parallelism in Energy-Efficient ILU Preconditioners | ca_CA |
| dc.type | info:eu-repo/semantics/bookPart | ca_CA |
| dc.identifier.doi | http://dx.doi.org/10.1007/978-3-642-32606-6_5 | |
| dc.rights.accessRights | info:eu-repo/semantics/restrictedAccess | ca_CA |
| dc.relation.publisherVersion | http://link.springer.com/chapter/10.1007%2F978-3-642-32606-6_5 | ca_CA |
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