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An efficient scheme for complete exchange in 2D tori

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3 Author(s)
Yu-Chee Tseng ; Dept. of Comput. Sci., Chung-Hua Polytech. Inst., Hsin-Chu, Taiwan ; Gupta, S.K.S. ; Panda, D.K.

All-to-all personalized communication, or complete exchange, is at the heart of numerous applications in parallel computing. An efficient complete exchange algorithm is proposed for square 2n×2 n wormhole-routed tori. Previous work has only considered complete exchange algorithms for mesh networks. The proposed algorithm effectively uses the bisection bandwidth of a torus, which is twice that for an equal sized mesh, to achieve complete exchange in a time which is almost half of the (best known) complete exchange time on an equal sized mesh

Published in:

Parallel Processing Symposium, 1995. Proceedings., 9th International

Date of Conference:

25-28 Apr 1995