Open MPI’s TEG Point-to-Point Communications Methodology: Comparison to Existing Implementations

  • T. S. Woodall
  • R. L. Graham
  • R. H. Castain
  • D. J. Daniel
  • M. W. Sukalski
  • G. E. Fagg
  • E. Gabriel
  • G. Bosilca
  • T. Angskun
  • J. J. Dongarra
  • J. M. Squyres
  • V. Sahay
  • P. Kambadur
  • B. Barrett
  • A. Lumsdaine
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3241)

Abstract

TEG is a new methodology for point-to-point messaging developed as a part of the Open MPI project. Initial performance measurements are presented, showing comparable ping-pong latencies in a single NIC configuration, but with bandwidths up to 30% higher than that achieved by other leading MPI implementations. Homogeneous dual-NIC configurations further improved performance, but the heterogeneous case requires continued investigation.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • T. S. Woodall
    • 1
  • R. L. Graham
    • 1
  • R. H. Castain
    • 1
  • D. J. Daniel
    • 1
  • M. W. Sukalski
    • 2
  • G. E. Fagg
    • 3
  • E. Gabriel
    • 3
  • G. Bosilca
    • 3
  • T. Angskun
    • 3
  • J. J. Dongarra
    • 3
  • J. M. Squyres
    • 4
  • V. Sahay
    • 4
  • P. Kambadur
    • 4
  • B. Barrett
    • 4
  • A. Lumsdaine
    • 4
  1. 1.Los Alamos National Lab 
  2. 2.Sandia National Laboratories 
  3. 3.University of Tennessee 
  4. 4.Indiana University 

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