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Towards mixed computation/communication in parallel scientific libraries

  • C. Calvin
  • L. Colombet
  • F. Desprez
  • B. Jargot
  • P. Michallon
  • B. Tourancheau
  • D. Trystram
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 854)

Abstract

This paper presents an overlapping technique of communications by computations based on pipelined communications. This allows to improve the execution time of most parallel numerical algorithms. Some simple examples are developed to illustrate the efficiency of this technique: matrix-vector product and bi-dimensional Fast Fourier Transform. Moreover, we propose an unified formalism to express easily the pipelined versions of these algorithms. Finally, we report some experiments on various parallel machines.

Keywords

parallel numerical algorithms communications 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • C. Calvin
    • 1
  • L. Colombet
    • 2
  • F. Desprez
    • 3
  • B. Jargot
    • 3
  • P. Michallon
    • 1
  • B. Tourancheau
    • 3
  • D. Trystram
    • 1
  1. 1.LMC-IMAGGrenoble cedexFrance
  2. 2.CISI-CENG/SITGrenoble cedexFrance
  3. 3.LIPLyon Cedex 07France

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