High performance hypercube communications

  • Authors:
  • G. Buzzard;T. Mudge

  • Affiliations:
  • Advanced Computer Architecture Laboratory, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan;Advanced Computer Architecture Laboratory, Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan

  • Venue:
  • C3P Proceedings of the third conference on Hypercube concurrent computers and applications: Architecture, software, computer systems, and general issues - Volume 1
  • Year:
  • 1988

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Abstract

In this paper we present a high performance message transport scheme that is based upon packet routing. The advantages of our scheme are derived from two observations. The first is that given sufficient support from communications hardware, decreasing the message latency time can be much more important to total program execution time than increasing the bandwidth. The second observation is that, from the standpoint of message latency, existing routing strategies tend not to make productive use of much of their available link capacity. The scheme that we propose addresses these issues and leads to substantial performance improvements across a broad range of message loads.