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Paper   IPM / Computer Science / 11128
School of Computer Science
  Title:   Modelling and evaluation of adaptive routing in high-performance n-D tori networks
  Author(s): 
1.  H. Sarbazi-Azad
2.  M. Ould-Khaoua
  Status:   Published
  Journal: Simulation Modelling Practice and Theory
  No.:  6
  Vol.:  14
  Year:  2006
  Pages:   740-751
  Supported by:  IPM
  Abstract:
Many fully-adaptive algorithms have been proposed to overcome the performance limitations of deterministic routing in networks used in high-performance multicomputers, such as the well-known regular n-D torus. This paper proposes a simple yet reasonably accurate analytical performance model to predict message communication latency in tori networks. This model requires a running time of O(1) which is the fastest model yet reported in the literature. Extensive simulations reveal that the new performance model maintains a reasonable accuracy when the network operates under different traffic conditions. The model is then used to perform an extensive investigation into the performance merits of n-D tori using adaptive routing and virtual channels.

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