Modeling the effects of hot-spot traffic load on the performance of wormhole-switched hypermeshes

  • Authors:

  • Reza Moraveji;Hamid Sarbazi-Azad;A. Nayebi;K. Navi

  • Affiliations:

  • School of Computer Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran and Department of Computer and Electrical Engineering, Shahid Beheshti University, Tehran, Iran;Department of Computer Engineering, Sharif University of Technology, Tehran, Iran and School of Computer Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran;Department of Computer Engineering, Sharif University of Technology, Tehran, Iran and School of Computer Science, Institute for Research in Fundamental Sciences (IPM), Tehran, Iran;Department of Computer and Electrical Engineering, Shahid Beheshti University, Tehran, Iran

  • Venue:
  • Computers and Electrical Engineering
  • Year:
  • 2011

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Abstract

Hypermesh is a promising network topology and is suitable for a range of network-based computing systems. Although there are few models reported for hypermeshes with uniform traffic pattern, no analytical model has been reported to deal with hot-spot traffic. Since many parallel applications exhibit non-uniform traffic patterns such as hot-spots, uniform traffic assumption is not always justifiable in practice. In this study, we propose a new analytical model to predict the mean message latency in wormhole-switched hypermeshes in the presence of hot-spot traffic. The proposed model can also calculate the mean latency under uniform traffic load when the hot-spot ratio is set to zero. Simulation results show the validity and the reasonable accuracy of the model even under heavy traffic loads and near saturation region.