Broadcasting and Multicasting in Cut-through Routed Networks

  • Authors:
  • Johanne Cohen;Pierre Fraigniaud;Jean-Claude König;André Raspaud

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IPPS '97 Proceedings of the 11th International Symposium on Parallel Processing
  • Year:
  • 1997

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Abstract

This paper addresses the one-to-all broadcasting problem, and the one-to-many broadcasting problem, usually simply called broadcasting and multicasting, respectively. In thispaper we study these problems under both line model, and cut-through model. The former assumes long distance calls between non neighboringprocessors. The latter com- pletes the line model by taking into account the use of a routing function. It is known that one can find time optimal broadcast and multicastprotocols in the line model inpoly- nomial time. We present a new time optimal broadcasting and multicasting algorithm in the line model. This algorithm efficiently uses the bandwidth of the network. Moreover, it also applies to the cut-through model as soon as the routing junction generates shortest paths only.