Turn grouping for efficient multicast in wormhole mesh networks

  • Authors:
  • Kuo-Pao Fan;Chung-Ta King

  • Affiliations:
  • -;-

  • Venue:
  • FRONTIERS '96 Proceedings of the 6th Symposium on the Frontiers of Massively Parallel Computation
  • Year:
  • 1996

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Abstract

Multicast is an important collective communication in scalable parallel computers. One efficient scheme to perform multicast is multidestination messaging. In multidestination messaging, destination nodes of a multicast are partitioned into disjoint groups. Nodes in each group are reached with a multidestination message that conforms to the base routing algorithm of the system. A systematic way of partitioning the nodes is thus critical to multidestination messaging. In this paper we propose a node grouping method, called turn grouping, for partitioning the destination nodes in a multicast. Turn grouping supports any base routing algorithm derivable from the turn model. Simulations based on three turn model-based routing algorithms show that our approach performs better than the some the others.