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Efficient all-to-all broadcast in switch-based networks with irregular topology

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2 Author(s)
Jizhong Han ; Inst. of Comput. Technol., Acad. Sinica, Beijing, China ; Chengde Han

Clustered computing systems are emerging as a cost-effective alternative to custom parallel computers in recent years. The interconnection networks of clustered computing systems often consist of generic switches connected in an irregular topology. This irregularity makes traditional all-to-all broadcast algorithms for regular networks ineffective. We adopt another approach to improve all-to-all broadcast algorithm for this special network topology. The newly proposed algorithm eliminates link contention and decreases the latency of message transmission by combining messages transferred among switches and allowing local all-to-all broadcast to operate independently. Simulation results show that the novel algorithm has better performance than previously proposed algorithms.

Published in:

High Performance Computing in the Asia-Pacific Region, 2000. Proceedings. The Fourth International Conference/Exhibition on  (Volume:1 )

Date of Conference:

14-17 May 2000