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Multi-dimensional wave propogation method

  • Roe scheme, Wave limiting
  • fully 2nd order multi-dimensional wave propogation method

Cartesian

  • 142 time steps
  • 145 ghost cell synchronizations, GhostCells=2
  • TimeControl: StepMode=2
Task P=16 P=32 P=64
s % s % s %
Integration 2524 90.7 1225 85.7 597 78.7
Int. - parallel diff. 114 4.1 161 11.3 85 11.2
Boundary setting 37 1.3 18 1.2 25 3.2
Output 39 1.4 42 3.0 42 5.5
Misc. 182 6.6 144 10.1 95 13.6
Total / Grind time 2782 1.2e-6 1429 6.0e-7 759 3.2e-7

Ghost-fluid method

  • 156 time steps
  • 487 ghost cell synchronizations
  • GhostCells=3, BoundaryWidth=1
  • TimeControl: StepMode=2

Task P=16 P=32 P=64
s % s % s %
Integration 2891 75.4 1443 72.0 696 68.7
Int. - parallel diff. 169 4.4 71 3.5 92 9.1
Boundary setting 259 6.8 166 8.3 102 10.1
GFM Find cells 149 3.9 75 3.7 36 3.6
GFM Interpolation 261 6.8 130 6.5 63 6.2
GFM Overhead 35 0.9 18 0.9 9 0.8
GFM Calculate 19 0.5 9 0.5 4 0.4
GFM - parallel diff. 108 2.8 63 3.1 33 3.3
Output 49 1.3 51 2.5 48 4.8
Misc. 172 4.5 113 5.6 55 5.4
Total / Grind time 3836 1.5e-6 2004 7.7e-7 1013 3.9e-7

-- RalfDeiterding - 17 Dec 2007

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