A performance model of multicast communication in wormhole-routed networks on-chip

  • Authors:

  • Mahmoud Moadeli;Wim Vanderbauwhede

  • Affiliations:

  • Department of Computing Science, University of Glasgow, UK;Department of Computing Science, University of Glasgow, UK

  • Venue:
  • IPDPS '09 Proceedings of the 2009 IEEE International Symposium on Parallel&Distributed Processing
  • Year:
  • 2009

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Abstract

Collective communication operations form a part of overall traffic in most applications running on platforms employing direct interconnection networks. This paper presents a novel analytical model to compute communication latency of multicast as a widely used collective communication operation. The novelty of the model lies in its ability to predict the latency of the multicast communication in wormhole-routed architectures employing asynchronous multi-port routers scheme. The model is applied to the Quarc [17] NoC and its validity is verified by comparing the model predictions against the results obtained from a discrete-event simulator developed using OMNET++.