Parallel processing and non-uniform grids in global air quality modeling

P.J.F. Berkvens, Mikhail A. Bochev

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    Abstract

    A large-scale global air quality model, running efficiently on a single vector processor, is enhanced to make more realistic and more long-term simulations feasible. Two strategies are combined: non-uniform grids and parallel processing. The communication through the hierarchy of non-uniform grids interferes with the inter-processor communication. We discuss load balance in the decomposition of the domain, I/O, and inter-processor communication. A model shows that the communication overhead for both techniques is very low, whence non-uniform grids allow for large speed-ups and high speed-up can be expected from parallelization. The implementation is in progress, and results of experiments will be reported elsewhere.
    Original languageUndefined
    Pages215-224
    Number of pages10
    Publication statusPublished - 2002
    Event2nd Conference on Air Pollution Modelling and Simulation, APMS 2001 - Champs-sur-Marne, France
    Duration: 9 Apr 200112 Apr 2001
    Conference number: 2

    Conference

    Conference2nd Conference on Air Pollution Modelling and Simulation, APMS 2001
    Abbreviated titleAPMS
    CountryFrance
    CityChamps-sur-Marne
    Period9/04/0112/04/01

    Keywords

    • IR-66804
    • EWI-8874

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