NDLI: Fault tolerance on star graphs

Content Provider	IEEE Xplore Digital Library
Author	Shuo-Cheng Hu Chang-Biau Yang
Copyright Year	1995
Description	Author affiliation: Dept. of Appl. Math., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan (Shuo-Cheng Hu; Chang-Biau Yang)
Abstract	Fault tolerance capability is one of the advantages of multiprocessor systems. We prove that the fault tolerance of star graphs is 2n-5 with restriction to the forbidden faulty set. We propose an algorithm for examining the connectivity of star graphs when 2n-4 faults exist. The algorithm requires O(n/sup 3/ logn) time. We also improve the fault-tolerant routing algorithm proposed by Bagherzadeh et al. (1993) by calculating the cycle structure of a permutation and the avoidance of routing messages to a node without another nonfaulty neighbor. This calculation needs only constant time. We propose an efficient fault-tolerant broadcasting algorithm. When no fault occurs, our broadcasting algorithm remains optimal. The penalty is O(n/sup 2/) if at most n-2 faults exist.
Starting Page	176
Ending Page	182
File Size	553299
Page Count	7
File Format	PDF
ISBN	081867038X
DOI	10.1109/AISPAS.1995.401340
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-03-15
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fault tolerance Broadcasting Routing Multiprocessing systems Hypercubes Topology Mathematics Fault tolerant systems Relays Tin
Content Type	Text
Resource Type	Article

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