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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 資訊工程學系 > 期刊論文 >  Toward optimal complete exchange on wormhole-routed tori

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/12796

    Title: Toward optimal complete exchange on wormhole-routed tori
    Authors: Tseng,Yu-Chee
    Date: 1999
    Publisher: Institute of Electrical and Electronics Engineers Computer Society
    Keywords: Multiprocessing systems
    Computer networks
    Response time
    Congestion control
    Telecommunication traffic
    Numerical analysis
    Abstract: In this paper, we propose new routing schemes to perform all-to-all personalized communication (or known as complete exchange) in wormhole-routed, one-port tori. On tori of equal size along each dimension, our algorithms use both asymptotically optimal startup and transmission time. The results are characterized by several interesting features: 1) the use of gather-scatter tree to achieve optimality in startup time, 2) enforcement of shortest paths in routing messages to achieve optimality in transmission time, 3) application of network-partitioning techniques to reduce the constant associated with the transmission time, and 4) the dimension-by-dimension and gather-scatter-tree approach to make possible applying the results to nonsquare, any-size tori. In the literature, some algorithms are optimal in only one of startup and transmission costs, while some, although asymptotically optimal in both costs, will incur much larger constants associated with the costs. Numerical analysis and experiment both show that significant improvement can be obtained by our scheme on total communication latency over existing results.
    Relation Link: http://webservices.ieee.org/pindex_basic.html
    URI: http://nthur.lib.nthu.edu.tw/handle/987654321/12796
    Appears in Collections:[資訊工程學系] 期刊論文
    [通訊工程研究所] 期刊論文

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