Article : [ART153]
Info : REPONSE 1, le 04/02/2002.
Titre : A comparative study of bidirectional ring and crossbar interconnection networks.
Cité dans : [DIV313] Recherche sur l'auteur Narayanaswani RANGANATHAN, février 2002.Auteur : Oi, H. (Dept. of Comp. Sci. and Engineering Florida Atlantic University, Boca Raton, FL 33431, United States);
Source : Computers and Electrical Engineering v 28 n 1 January 2002 2002.p 43-57
CODEN : CPEEBQ
ISSN : 0045-7906
Année : 2002
Document_Type : Journal
Treatment_Code : Theoretical
Language : English
Stockage :
Abstract :
For distributed shared memory multiprocessors, the choice and the design of interconnection networks have a
significant impact on their performance. Bidirectional ring networks are considered to be physically fast due
to their simple structure, but topologically slow since their communication latency grows proportionally to the
number of nodes. In this paper, we will present a quantitative measure to the question of how physically fast a
bidirectional ring has to be to overcome its topologically slow communication latency by comparing it to the
crossbar, an interconnection network that has opposite characteristics to the ring network. A hybrid method,
in which workload parameters extracted from memory traces are given to an analytical model is used for
performance evaluation. Our study shows for 16 nodes configuration, the performance of two networks are
similar. For 32 and 64 nodes configurations, the bidirectional ring outperforms the crossbar by 21% and 61%
respectively, on the average of four paralle l applications. $CPY 2001 Elsevier Science Ltd. All rights
reserved. 17 Refs.
Accession_Number : 2001(46):1740 COMPENDEX
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