Abstract
Generalized honeycomb torus (GHT) is recognized as an attractive alternative to existing torus interconnection networks in parallel computing systems. Assume that m and d are integers with m ⩾ 2 and d ⩾ 8. This paper addresses the fault-tolerant hamiltonicity of GHT( m, 2 d, d) with fault set F = {( w, y), ( x, y)}, where w < x, w + y is even and x + y is odd. We show that such a faulty GHT is hamiltonian by presenting a systematic method for constructing a fault-free hamiltonian cycle. This result reveals another appealing feature of GHTs.
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