Generic Methodologies for Deadlock-Free Routing

  • Authors:
  • Hyunmin Park;Dharma P. Agrawal

  • Affiliations:
  • -;-

  • Venue:
  • IPPS '96 Proceedings of the 10th International Parallel Processing Symposium
  • Year:
  • 1996

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Abstract

This paper introduces a graph-partitioning generic methodology for developing deadlock-free wormhole routing in an arbitrary network. Further extension allows partial cyclic dependencies among virtual channels. A novel fully adaptive nonminimal deadlock-free routing algorithm has been developed for k-ary n-cube torus network. Since our technique is based on decomposing a network into several subdigraphs, it simplifies and generalizes the development of both static and adaptive deadlock-free routing algorithms for arbitrary network topologies. We show that our methodology can be applied to store-and-forward and virtual cut-through routings as well. Keywords: Adaptive Routing, Channels, Deadlock-free Routing Algorithm, Hypercube, Mesh, Store-and-Forward, Subdigraph, Torus, Virtual Channel, Virtual Cut-through, Wormhole