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Extending magny-cours cache coherence

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Extending magny-cours cache coherence

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dc.contributor.author Ros Bardisa, Alberto es_ES
dc.contributor.author Cuesta Sáez, Blas Antonio es_ES
dc.contributor.author Fernández-Pascual, Ricardo es_ES
dc.contributor.author Gómez Requena, María Engracia es_ES
dc.contributor.author Acacio Sánchez, Manuel E. es_ES
dc.contributor.author Robles Martínez, Antonio es_ES
dc.contributor.author García Carrasco, José Manuel es_ES
dc.contributor.author Duato Marín, José Francisco es_ES
dc.date.accessioned 2014-03-07T07:32:07Z
dc.date.issued 2012-05
dc.identifier.issn 0018-9340
dc.identifier.uri http://hdl.handle.net/10251/36257
dc.description.abstract One cost-effective way to meet the increasing demand for larger high-performance shared-memory servers is to build clusters with off-the-shelf processors connected with low-latency point-to-point interconnections like HyperTransport. Unfortunately, HyperTransport addressing limitations prevent building systems with more than eight nodes. While the recent High-Node Count HyperTransport specification overcomes this limitation, recently launched twelve-core Magny-Cours processors have already inherited it and provide only 3 bits to encode the pointers used by the directory cache which they include to increase the scalability of their coherence protocol. In this work, we propose and develop an external device to extend the coherence domain of Magny-Cours processors beyond the 8-node limit while maintaining the advantages provided by the directory cache. Evaluation results for systems with up to 32 nodes show that the performance offered by our solution scales with the number of nodes, enhancing the directory cache effectiveness by filtering additional messages. Particularly, we reduce execution time by 47 percent in a 32-die system with respect to the 8-die Magny-Cours configuration. es_ES
dc.description.sponsorship This work was supported by the Spanish MICINN, Consolider Programme and Plan E funds, as well as European Commission FEDER funds, under Grants CSD2006-00046 and TIN2009-14475-C04-01/03. It was also partly supported by (PROMETEO from Generalitat Valenciana (GVA) under Grant PROMETEO/2008/060). en_EN
dc.format.extent 14 es_ES
dc.language Inglés es_ES
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) es_ES
dc.relation Spanish MICINN es_ES
dc.relation Consolider Programme es_ES
dc.relation Plan E funds es_ES
dc.relation European Commission FEDER funds [CSD2006-00046 and TIN2009-14475-C04-01/03] es_ES
dc.relation info:eu-repo/grantAgreement/Generalitat Valenciana//PROMETEO08%2F2008%2F060/ES/Extensión de la tecnología de red hypertransport para la mejora de la escalabilidad de los servidores de internet/ es_ES
dc.relation.ispartof IEEE Transactions on Computers es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject High-performance computing es_ES
dc.subject Cache coherence es_ES
dc.subject Coherence extension es_ES
dc.subject Directory protocol es_ES
dc.subject Scalability es_ES
dc.subject Shared memory es_ES
dc.subject Traffic filtering es_ES
dc.subject.classification ARQUITECTURA Y TECNOLOGIA DE COMPUTADORES es_ES
dc.title Extending magny-cours cache coherence es_ES
dc.type Artículo es_ES
dc.embargo.lift 10000-01-01
dc.embargo.terms forever es_ES
dc.identifier.doi 10.1109/TC.2011.65
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Informática de Sistemas y Computadores - Departament d'Informàtica de Sistemes i Computadors es_ES
dc.description.bibliographicCitation Ros Bardisa, A.; Cuesta Sáez, BA.; Fernández-Pascual, R.; Gómez Requena, ME.; Acacio Sánchez, ME.; Robles Martínez, A.; García Carrasco, JM.... (2012). Extending magny-cours cache coherence. IEEE Transactions on Computers. 61(5):593-606. https://doi.org/10.1109/TC.2011.65 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5740853 es_ES
dc.description.upvformatpinicio 593 es_ES
dc.description.upvformatpfin 606 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 61 es_ES
dc.description.issue 5 es_ES
dc.relation.senia 223442
dc.contributor.funder Generalitat Valenciana es_ES


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