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A broadcast algorithm for all-port wormhole-routed torus networks

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2 Author(s)
Yih-Jia Tsai ; Dept. of Comput. Sci., Michigan State Univ., East Lansing, MI, USA ; McKinley, P.K.

A new approach to broadcast in wormhole-routed two- and three-dimensional torus networks is proposed. The underlying network is assumed to support only deterministic, dimension-ordered unicast routing. The approach extends the graph theoretical concept of dominating nodes by accounting for the relative distance-insensitivity of the wormhole routing switching strategy. The proposed algorithm also takes advantage of an all-port communication architecture, which allows each node to simultaneously transmit messages on different outgoing channels. The resulting broadcast operation is based on a tree structure that uses multiple levels of extended dominating nodes(EDNs). Performance results are presented that confirm the advantage of this method over other approaches

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:7 ,  Issue: 8 )