Performance of Some CFD Codes on the Alliant FX/8
Daoud, Amjad M.
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Three CFD codes are ported to the Alliant FX/8. The first solves the 3-D unsteady Euler equations using an explicit finite-volume Runge-Kutta time stepping method. The second solves the same problem using the Beam and Worming implicit method. The third is ARC2D from NASA Ames which solves the unsteady 2-D Navier-Stockes equations using an implicit method. Extensive observations and results on the performance of these codes on the FX/8 are presented. Careful interaction with parallelizing compiler improves the performance some. Better results are obtained by simple recoding of different segments in the programs.