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Pair Interaction Lattice Gas On General Purpose Computers: Fortran Or C?

Author

Listed:
  • DIETER WOLF-GLADROW

    (Alfred Wegener Institute for Polar and Marine Research, D-2850 Bremerhaven, F R Germany)

  • ARMIN VOGELER

    (Alfred Wegener Institute for Polar and Marine Research, D-2850 Bremerhaven, F R Germany)

Abstract

We report on performance tests of pair interaction lattice gas automata in two and three dimensions coded in FORTRAN and C. The programs have been run on ALLIANT/FX-80, ALLIANT/FX-2800, CONVEX C2, CRAY-YMP, NEC/SX3, and SUN/IPC. The maximum update rates are 200 million site updates per second on the NEC/SX3 (FORTRAN), 117 (2D version) and 29 (3D version) on the CRAY-YMP (C). As a byproduct we give results for the performance of integer arithmetic and bit operations. Usually the C-programs were somewhat faster than the FORTRAN-programs except on the NEC/SX3 where the C-compiler was not able to vectorize the main loops.

Suggested Citation

  • Dieter Wolf-Gladrow & Armin Vogeler, 1992. "Pair Interaction Lattice Gas On General Purpose Computers: Fortran Or C?," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 3(06), pages 1179-1187.
    • Handle: RePEc:wsi:ijmpcx:v:03:y:1992:i:06:n:s0129183192000804
    DOI: 10.1142/S0129183192000804
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