Skip navigation

Standard Performance Evaluation Corporation

 
 

171.swim
SPEC CPU2000 Benchmark Description File


Benchmark Name

171.swim


Benchmark Author

Paul N. Swarztrauber


Benchmark Program General Category

Meteorology: Shallow Water Modeling


Benchmark Description

Benchmark weather prediction program for comparing the performance of current supercomputers. The model is based on the paper, "The Dynamics of Finite-Difference Models of the Shallow-Water Equations", by Robert Sadourny, J. ATM. SCIENCES, VOL 32, NO 4, APRIL 1975.

Adapted by SPEC for use in the SPEC CPU Suites as an example of a compute intensive floating point program that was once relegated only to "supercomputers" but can now be done on current computer systems.

Input Description

It does a 1335x1335 area array of data and iterates over 512 timesteps.


Output Description

It prints the diagonal elements of the velocity field.


Programming Language

Fortran 77


Known portability issues

None.


Reference

"The Dynamics of Finite-Difference Models of the Shallow-Water Equations",
by Robert Sadourny, J. ATM. SCIENCES, VOL 32, NO 4, APRIL 1975.

and

G.-R. Hoffmann, P. N. Swarztrauber, and R. A. Sweet, Aspects of using multiprocessors for meteorological modeling, In: Multiprocessing in Meteorological Models, G.-R. Hoffman and D.F. Snelling, eds., Springer-Verlag, 1988, pp. 125-196.

Last updated: 16 August 2000