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Medium-range weather forecast on parallel systems

: Gärtel, U.; Joppich, W.; Schüller, A.


IEEE Computer Society, Technical Committee on Supercomputing Applications:
Scalable High-Performance Computing Conference 1994. Proceedings : May 23 - 25, 1994, Knoxville, Tennessee
Los Alamitos, Calif.: IEEE Computer Society Press, 1994
ISBN: 0-8186-5680-8
ISBN: 0-8186-5681-6
Scalable High-Performance Computing Conference (SHPCC) <8, 1994, Knoxville/Tenn.>
Fraunhofer SCAI ()

GMD and ECMWF (European Centre for Medium-Range Weather Forecasts) joined forces in autumn 1992 in order to parallelize the Integrated Forecasting System (IFS), that is run operationally each day for the European medium-range weather prediction. The parallelization is performed in a portable way with all relevant parallel systems as target machines. Meanwhile, the parallelization of the 3D weather model has been achieved: the code runs with excellent parallel efficiencies of 90% and more on different parallel systems such as the SP1 (IBM) and the CM5 (Thinking Machines). First optimizations promise significant further improvements.