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Comparison of Mesh and Hierarchical Networks for Multiprocessors

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2 Author(s)
Hamacher, V.C. ; Queen''s University, Canada ; Hong Jiang

Upper bounds on message delay and throughput are developed for two networks that have been used in recent multiprocessor systems. Two-dimensional mesh networks with bidirectional links and no end-around connections are compared to bus-type hierarchical networks that use segmented rings for the interconnection paths at each level of the hierarchy. Wormhole routing of short, fixed-length messages is used in the mesh networks, while a complete message can be switched between ring segments in one switch time in the hierarchical networks. It is found that three-level hierarchical systems perform somewhat better than mesh systems with respect to the basic bounds criteria that are developed.

Published in:

Parallel Processing, 1994. Vol. 1. ICPP 1994. International Conference on  (Volume:1 )

Date of Conference:

15-19 Aug. 1994