Seeds for a heterogeneous interconnect

DC FieldValueLanguage
dc.contributor.authorHackett, Adam-
dc.contributor.authorAjwani, Deepak-
dc.contributor.authorAli, Shoukat-
dc.contributor.authorKirkland, Steve-
dc.contributor.authorMorrison, John P.-
dc.date.accessioned2019-07-12T09:17:08Z-
dc.date.available2019-07-12T09:17:08Z-
dc.date.copyright2013 IEEEen_US
dc.date.issued2013-05-24-
dc.identifier.isbn9780769549798-
dc.identifier.urihttp://hdl.handle.net/10197/10900-
dc.descriptionIPDPS 2013: IEEE Workshops & PhD Forum (IPDPSW), Boston (MA), USA, 20-24 May 2013en_US
dc.description.abstractTraditionally, a parallel application is partitioned, mapped and then routed on a network of compute nodes where the topology of the interconnection network is known beforehand and is homogeneous. However, such homogeneity in interconnects is rarely required or needed for several important classes of applications. Nevertheless such interconnects are designed this way, i.e., with redundant links, to accommodate the communication patterns of a wide range of applications. However, with recent advances in technology for optical circuit switches, it is now possible to construct network with much fewer links, and to make the link endpoints configurable to suit the communication pattern of a given application. While this is economical (saving both links and the power to run them), it raises the difficult problem of how to configure the network and how to reconfigure it quickly when the application's communication pattern changes. Since the space of all configurable topologies is large and determining the quality of a topology is a time-consuming process, it is not feasible to explore the entire space. One way of dealing with this limitation is to start the search from a "good" initial topology and then conduct a restricted search around it. The success of such a strategy crucially depends on the choice of the initial or seed topology. In the past, such an initial topology was computed by mimicking the communication requirements of the application. In this paper, we propose a different approach by showing that interconnect topologies such as chordal rings(circulant graphs) chosen based on metrics such as bisection width and average shortest path length can provide a better starting point. The topology obtained by searching around such an initial topology provides almost as good a performance as an application-specific initial topology, and the search time is significantly reduced.en_US
dc.language.isoenen_US
dc.publisherIEEEen_US
dc.relation.ispartofProceedings - IEEE 27th International Parallel and Distributed Processing Symposium Workshops and PhD Forum, IPDPSW 2013en_US
dc.rights© 2013 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
dc.subjectTopologyen_US
dc.subjectThroughputen_US
dc.subjectNetwork topologyen_US
dc.subjectOptical switchesen_US
dc.subjectIntegrated circuit interconnectionsen_US
dc.subjectRoutingen_US
dc.titleSeeds for a heterogeneous interconnecten_US
dc.typeConference Publicationen_US
dc.internal.authorcontactotherdeepak.ajwani@ucd.ieen_US
dc.statusNot peer revieweden_US
dc.identifier.startpage84en_US
dc.identifier.endpage92en_US
dc.identifier.doi10.1109/IPDPSW.2013.260-
dc.neeo.contributorHackett|Adam|aut|-
dc.neeo.contributorAjwani|Deepak|aut|-
dc.neeo.contributorAli|Shoukat|aut|-
dc.neeo.contributorKirkland|Steve|aut|-
dc.neeo.contributorMorrison|John P.|aut|-
dc.date.updated2019-04-01T09:53:38Z-
item.grantfulltextopen-
item.fulltextWith Fulltext-
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