Pipelined circuit switching: Analysis for the torus with non-uniform traffic

F. Safaei, A. Khonsari, M. Fathy, M. Ould-Khaoua*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Pipelined circuit switching (PCS) has been suggested as an efficient switching method for supporting interprocessor communication in multicomputer networks due to its ability to preserve both communication performance and fault-tolerant demands in such networks. The torus has been the underlying topology for a number of practical multicomputers. Analytical models of fully adaptive routing have recently been proposed for PCS in the torus under the uniform traffic pattern. However, there has not been any similar analytical model of PCS under the non-uniform traffic pattern, such as that generated by the presence of hot spots in the network. This paper proposes a new analytical model of PCS in the torus operating under the hot spot traffic pattern. Results from simulation experiments show close agreement with those predicted by the analytical model.

Original languageEnglish
Pages (from-to)97-110
Number of pages14
JournalJournal of Systems Architecture
Issue number1-2
Publication statusPublished - Jan 2008


  • Adaptive routing
  • Message latency
  • Multicomputers
  • Performance analysis
  • Pipelined circuit switching
  • Queuing theory
  • Torus
  • Virtual channels

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture


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