Abstract

The hypercube architecture is a popular topology for many parallel processing applications. For continued operation of the hypercube multiprocessors after the failure of one or more i-subcubes and/or links, fault tolerance by reconfiguration is an important problem. This paper considers the reconfiguration issue and presents an algebraic technique to analyze the problem extending the concepts in [9]. The technique uses algebraic operators to identify the maximum dimensional fault-free subcube, and thus helps in achieving graceful degradation of the system. We analyze the complexity of our algorithm and show that it is efficient as compared to previous algorithms [1, 8, 14].

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