Load imbalance aspects in atmosphere simulations
by Christian Koziar, Robert Reilein, Gudula Runger
International Journal of Computational Science and Engineering (IJCSE), Vol. 1, No. 2/3/4, 2005

Abstract: Atmosphere simulation models often have a regular program structure based on a regular grid decomposition of the physical space and corresponding uniform computations. However, some atmosphere or weather situations show a more irregular behaviour with different intensities of activity in different physical regions. In this paper, we investigate how the regular program structure can be adapted to more irregular weather situations to reduce the amount of computations. We investigate meteorological criteria to guide the computations and discuss the influence of the program change on load imbalance, and parallelisation on distributed memory machines.

Online publication date: Fri, 05-May-2006

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