Interconnection networks in petascale computer systems: A survey

Abstract: This article provides background information about interconnection networks, an analysis of previous developments, and an overview of the state of the art. The main contribution of this article is to highlight the importance of the interpolation and extrapolation of technological changes and physical constraints in order to predict the optimum future interconnection network. The technological changes are related to three of the most important attributes of interconnection networks: topology, routing, and flow-control algorithms. On the other hand, the physical constraints, that is, port counts, number of communication nodes, and communication speed, determine the realistic properties of the network. We present the state-of-the-art technology for the most commonly used interconnection networks and some background related to often-used network topologies. The interconnection networks of the best-performing petascale parallel computers from past and present Top500 lists are analyzed. The lessons learned from this analysis indicate that computer networks need better performance in future exascale computers. Such an approach leads to the conclusion that a high-radix topology with optical connections for longer links is set to become the optimum interconnect for a number of relevant application domains. © 2016 ACM.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: ACM Computing Surveys, Vol. 49, No. 3, Article 44, September 2016

Editorial: Association for Computing Machinery (ACM)

 Fecha de publicación: 01/09/2016

Nº de páginas: 24

Tipo de publicación: Artículo de Revista

DOI: 10.1145/2983387

ISSN: 0360-0300,1557-7341

Url de la publicación: https://doi.org/10.1145/2983387