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Comments on "Hierarchical cubic networks"

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2 Author(s)
Sang Kyun Yun ; Dept. of Comput. Sci., Seowon Univ., Chungbuk, South Korea ; Kyu Ho Park

Ghose and Desai (1995) introduced a new interconnection for large-scale distributed memory multiprocessors called the Hierarchical Cubic Network (HCN). The HCN is topologically superior to a comparable hypercube. They also proposed optimal routing algorithms for the HCN and obtained its diameter, which is about three-fourths the diameter of a comparable hypercube. However, their routing algorithm is not distance-optimal. In this paper, we propose an optimal routing algorithm for the HCN and show that HCN has about two-thirds the diameter of a comparable hypercube.

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Parallel and Distributed Systems, IEEE Transactions on  (Volume:9 ,  Issue: 4 )