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Leveraging Task-Parallelism in Energy-Efficient ILU preconditioners
| dc.contributor.author | Aliaga, José Ignacio |
| dc.contributor.author | Dolz Zaragozá, Manuel Francisco |
| dc.contributor.author | Martín Huertas, Alberto Francisco |
| dc.contributor.author | Mayo, Rafael |
| dc.contributor.author | Quintana Ortí, Enrique Salvador |
| dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria |
| dc.date.accessioned | 2013-01-17T11:41:44Z |
| dc.date.created | 2012 |
| dc.date.issued | 2012 |
| dc.identifier.citation | Aliaga, J. I. [et al.]. Leveraging Task-Parallelism in Energy-Efficient ILU preconditioners. A: International Conference on ICT as Key Technology against Global Warming. "ICT as Key Technology against Global Warming, Lecture Notes in Computer Science Volume 7453". Vienna: Springer, 2012, p. 55-63. |
| dc.identifier.isbn | 978-3-642-32605-9 |
| dc.identifier.uri | http://hdl.handle.net/2117/17394 |
| 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. |
| dc.format.extent | 9 p. |
| dc.language.iso | eng |
| dc.publisher | Springer |
| dc.subject | Àrees temàtiques de la UPC::Informàtica::Enginyeria del software |
| dc.subject.lcsh | Computers -- Economic aspects |
| dc.title | Leveraging Task-Parallelism in Energy-Efficient ILU preconditioners |
| dc.type | Conference lecture |
| dc.subject.lemac | Informàtica -- Estalvi d'energia |
| dc.identifier.doi | 10.1007/978-3-642-32606-6_5 |
| dc.description.peerreviewed | Peer Reviewed |
| dc.relation.publisherversion | http://link.springer.com/chapter/10.1007/978-3-642-32606-6_5 |
| dc.rights.access | Restricted access - publisher's policy |
| local.identifier.drac | 11029219 |
| dc.description.version | Postprint (published version) |
| dc.date.lift | 10000-01-01 |
| local.citation.author | Aliaga, J. I.; Dolz, Manuel F.; Martín, A. F.; Mayo, R.; Quintana-Ortí, E. S. |
| local.citation.contributor | International Conference on ICT as Key Technology against Global Warming |
| local.citation.pubplace | Vienna |
| local.citation.publicationName | ICT as Key Technology against Global Warming, Lecture Notes in Computer Science Volume 7453 |
| local.citation.startingPage | 55 |
| local.citation.endingPage | 63 |