An (n, k)-star graph Sn, k is a promising topology for interconnection networks of parallel processing systems because it inherits the merits of a star graph while providing various network sizes. In this study, we propose a fault-tolerant routing algorithm that establishes a fault-free path between any pair of non-faulty nodes in an Sn, k with faulty nodes by using limited global information called safety vectors. In addition, we carried out a computer experiment to verify its effectiveness.
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