Routing Permutations in Partitioned Optical Passive Star Networks

  • Authors:
  • Alessandro Mei;Romeo Rizzi

  • Affiliations:
  • -;-

  • Venue:
  • IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
  • Year:
  • 2002

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Abstract

It is shown that a Partitioned Optical Passive Stars (POPS) network with g groups and d processors per group can route any permutation among the n = dg processors in one slot when d =1 and 2驴d/g驴 slots when d 1. The number of slots used is optimal in the worst case, and is at most the double of the optimum for all permutations 驴 such that 驴(i) 驴 i, for all i.