Abstract

As a generalization of the star graph, the -star graph is one of the most important interconnection networks for parallel and distributed computing system. In this paper, we investigate the fault-tolerant routing problem of -star graphs under the conditional fault assumption (CFA), where all the neighbours of any fault-free node cannot be faulty simultaneously. We show that, under the CFA, the-star graph can tolerate up to faulty nodes, and there is a fault-free path of length at most the diameter of the -star graph plus 6 between any two fault-free nodes.

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