A Lower Bound for Oblivious Dimensional Routing

  • Authors:
  • Andre Osterloh

  • Affiliations:
  • BTC AG, Oldenburg, Germany 26121

  • Venue:
  • Euro-Par '09 Proceedings of the 15th International Euro-Par Conference on Parallel Processing
  • Year:
  • 2009

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Abstract

In this work we consider deterministic oblivious dimensional routing algorithms on d -dimensional meshes. In oblivious dimensional routing algorithms the path of a packet depends only on the source and destination node of the packet. Furthermore packets use a shortest path with a minimal number of bends. We present an ***(kn (d + 1)/2) step lower bound for oblivious dimensional k -k routing algorithms on d -dimensional meshes for odd d 1 and show that the bound is tight.