NDLI: Complete exchange algorithms in wormhole-routed torus networks : a divide-and-conquer strategy

Content Provider	IEEE Xplore Digital Library
Author	Si-Gwan Kim Seung Ryoul Maeng Jung Wan Cho
Copyright Year	1999
Description	Author affiliation: Dept. of Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea (Si-Gwan Kim)
Abstract	We present efficient all-to-all personalized communication algorithms for a 2D torus in wormhole-routed networks. Our complete exchange algorithm adopts divide-and-conquer approach to reduce the start-up latency significantly, which is a good metric for network performance in wormhole networks. The first algorithm recursively divides the whole network into 2/spl times/2 networks. After specially designated nodes called master nodes have collected messages, whose destinations are the rest of the basic cells, only master nodes perform complete exchange with reduced network size. Upon finishing this complete exchange among master nodes, these nodes distribute messages to the rest of the master nodes, which results in the desired complete exchange. The second algorithm, which is more practical than the first one, divides the network only once. After we present these new algorithms, we analyze time complexities and compare several algorithms. We show that our practical algorithm is efficient by a factor of 2 in the required start-up time which means that our algorithm is suitable for wormhole-routed networks.
Starting Page	296
Ending Page	301
File Size	209959
Page Count	6
File Format	PDF
ISBN	0769502318
ISSN	10874089
DOI	10.1109/ISPAN.1999.778955
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-06-23
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent networks Computer worms Routing Computer science Artificial intelligence Postal services Topology Message passing Unicast Table lookup
Content Type	Text
Resource Type	Article

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