56828 20220120225830.0 doi 10.1016/j.jpdc.2016.04.002 sideral 95736 ART-2016-95736 eng Ortín-Obón, Marta Universidad de Zaragoza (orcid)0000-0003-3161-3793 Reactive circuits: Dynamic construction of circuits for reactive traffic in homogeneous CMPs 2016 Access copy available to the general public Unrestricted Networks on Chip (NoCs) have a large impact on system performance, area, and energy. NoCs convey request and response messages among cores following the message patterns dictated by the cache banks. Such patterns do not only guarantee a coherent memory state, but also provide an opportunity for NoC optimization. Request messages can smartly reserve the resources to dynamically build a circuit for replies, thus reducing their network latency. Starting from this simple idea, which we denote Reactive Circuits, we evaluate several implementations of the mechanism: with and without sharing circuits between messages, performing timed reservations, and removing the implicit coherence messages. A careful implementation of this circuit reservation mechanism in a wormhole router achieves an average 20.8% reduction in network energy consumption, 5.8% smaller router area and a 4.8% system performance increase in a 64-core chip, compared with a conventional network. info:eu-repo/grantAgreement/ES/DGA/T48 info:eu-repo/grantAgreement/ES/MINECO/TIN2013-46957-C2-1-P info:eu-repo/grantAgreement/ES/MINECO/TIN2014-52608-REDC info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 1.93 2016 COMPUTER SCIENCE, THEORY & METHODS 34 / 104 = 0.327 2016 Q2 T1 0.596 2016 Hardware and Architecture 2016 Q1 Computer Networks and Communications 2016 Q1 Theoretical Computer Science 2016 Q2 Software 2016 Q2 Artificial Intelligence 2016 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/submittedVersion Suárez-Gracia, Darío Universidad de Zaragoza (orcid)0000-0002-7490-4067 Villarroya-Gaudó, María Universidad de Zaragoza (orcid)0000-0003-3000-0506 Izu, Cruz Viñals, Víctor Universidad de Zaragoza (orcid)0000-0002-5976-1352 5007 035 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Arquit.Tecnología Comput. 95 (2016), 57-68 J. parallel distrib. comput. Journal of Parallel and Distributed Computing 0743-7315 313219 http://zaguan.unizar.es/record/56828/files/texto_completo.pdf Preprint 66641 http://zaguan.unizar.es/record/56828/files/texto_completo.jpg?subformat=icon icon Preprint oai:zaguan.unizar.es:56828 articulos driver 2022-01-20-22:54:01 ARTICLE