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A Modestly Parallel Model

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The Dawn of Massively Parallel Processing in Meteorology

Part of the book series: Topics in Atmospheric and Oceanic Sciences ((TATM))

Abstract

ECMWF has run a parallel spectral model in daily production since 1985. Initially, this executed on a Cray X-MP/22 and later on a Cray X-MP/48. The degree of high-level parallelism so far exploited is low because it is sufficient to provide the basic need, that is minimum wall clock execution time in a production environment. However, low-level parallelism in the form of vectorised Fortran code is very substantial. 99% of all floating point operations are performed in vector mode.

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References

  1. Dent, D.W., The Multitasking Spectral Model at ECMWF, in: G.-R. Hoffmann and D.F. Snelling, eds., Multiprocessing in Meteorological Models ( Springer Verlag, Berlin, 1988 ) 203–213.

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  2. Dent, D.W., The ECMWF model: Past, Present and Future, in: G.-R. Hoffmann and D.F. Snelling, eds., Multiprocessing in Meteorological Models ( Springer Verlag, Berlin, 1988 ) 369–381.

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  3. Hoffman, O.-R and D.F. Snelling, A Comparative Study of the ECMWF Weather Model on several Multiprocessor Architectures, in: G.-R. Hoffmann and D.F. Snelling, eds., Multiprocessing in Meteorological Models ( Springer Verlag, Berlin, 1988 ) 419–432.

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  4. Carver, G., A Spectral Meteorological Model on the ICL DAP, Parallel Comput. 8, (1988) 121–126.

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Author information

Authors and Affiliations

  1. European Centre for Medium-Range Weather Forecasts, Shinfield Park, Reading, Berkshire, RG2 9AX, UK

    David Dent

Authors
  1. David Dent
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Editor information

Editors and Affiliations

  1. European Centre for Medium-Range Weather Forecasts, Shinfield Park, RG2 9AX, Reading Berkshire, UK

    Geerd-R. Hoffmann  & Dimitris K. Maretis  & 

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© 1990 Springer-Verlag Berlin Heidelberg

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Dent, D. (1990). A Modestly Parallel Model. In: Hoffmann, GR., Maretis, D.K. (eds) The Dawn of Massively Parallel Processing in Meteorology. Topics in Atmospheric and Oceanic Sciences. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84020-3_3

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  • DOI: https://doi.org/10.1007/978-3-642-84020-3_3

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-84022-7

  • Online ISBN: 978-3-642-84020-3

  • eBook Packages: Springer Book Archive

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