Journal
INTERNATIONAL JOURNAL OF FOUNDATIONS OF COMPUTER SCIENCE
Volume 23, Issue 8, Pages 1729-1747Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0129054112500256
Keywords
Fault tolerance; comparison diagnosis; conditional diagnosability; dual-cubes
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Funding
- National Natural Science Foundation of Chian [61072080, 11071233]
- Natural Science Foundation of Fujian Province [2011J105118]
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The growing size of the multiprocessor system increases its vulnerability to component failures. It is crucial to locate and replace the faulty processors to maintain a system's high reliability. The fault diagnosis is the process of identifying faulty processors in a system through testing. This paper shows that the largest connected component of the survival graph contains almost all of the remaining vertices in the dual-cube DC when the number of faulty vertices is up to twice or three times of the traditional connectivity. Based on this fault resiliency, this paper determines that the conditional diagnosability of DC, (n >= 3) under the comparison model is 3n-2, which is about three times of the traditional diagnosability.
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