Researcher: Pat Worley

DOE/OBER sponsored studies to determine performance and parallel scalability achievable by the spectral global atmospheric circulation models used in climate modeling.

The global systems shallow water code, PSTSWM, is used for serial and parallel performance studies. The goal of the serial studies is to determine the "peak achieveable" serial performance that would be attained in long (production) simulations, to establish a baseline for determining parallel scalability.
details of serial performance studies, more evaluations

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Best Serial Performance for Each Platform

These results represent the highest MFlop rates for each platform, using math libraries where available and the best available compilers. The legends list the platforms in order of their performance (when there is an unambiguous ordering.) The new IBM SP with Power3 processors (listed as sp3-200) has shown the best performance of all systems tested to date.