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Constructing virtual 5-dimensional tori out of lower-dimensional network cards

In the Top500 and Graph500 lists of the last years, some of the most powerful systems implement a torus topology to interconnect the millions of computing nodes they include. Some of these torus networks are of five or six dimensions, which implies an additional difficulty as the node degree increas...

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Bibliographische Detailangaben
Hauptverfasser: Andújar, Francisco J. (VerfasserIn) , Fröning, Holger (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2019
In: Concurrency and computation
Year: 2019, Jahrgang: 31, Heft: 2, Pages: 1-17
ISSN:1532-0634
DOI:10.1002/cpe.4361
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1002/cpe.4361
Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/cpe.4361
Volltext
Verfasserangaben:Francisco J. Andújar, Juan A. Villar, José L. Sánchez, Francisco J. Alfaro, José Duato, Holger Fröning
Beschreibung
Zusammenfassung:In the Top500 and Graph500 lists of the last years, some of the most powerful systems implement a torus topology to interconnect the millions of computing nodes they include. Some of these torus networks are of five or six dimensions, which implies an additional difficulty as the node degree increases. In previous works, we proposed and evaluated the nD Twin (nDT) torus topology to virtually increase the dimensions a torus is able to implement. We showed that this new topology reduces the distances between nodes, increasing, therefore, global network performance. In this work, we present how to build a 5DT torus network using a specific commercial 6-port network card (EXTOLL card) to interconnect those nodes. We show, using the same number of cards, that the performance of the 5DT torus network we are able to implement using our proposal is higher than the performance of the 3D torus network for the same number of compute nodes.
Beschreibung:First published: 22 November 2017
Gesehen am 28.02.2019
Beschreibung:Online Resource
ISSN:1532-0634
DOI:10.1002/cpe.4361

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