Comments on "Hierarchical Cubic Networks"

  • Authors:
  • Sang Kyun Yun;Kyu Ho Park

  • Affiliations:
  • Seowon Univ., Chungbuk, Korea;Korea Advanced Institue of Science and Technology, Taejeon, Korea

  • Venue:
  • IEEE Transactions on Parallel and Distributed Systems
  • Year:
  • 1998

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Abstract

Ghose and Desai [1] 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.