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3D Euler equations - Backward facing step

3 Grid Levels

Results:

Level 0 Level 1 Level 2
Grids 40 53 248
Cells 88000 334008 1542904


Color, schlieren and contour plots of the density at time t = 0.75 (click on pictures to display cuts!)

bfstep3d_fridx.gif   bfstep3d_midx.gif   bfstep3d_lmidx.gif
cutting plane at z=0   cutting plane at z=1.3   cutting plane at x=1.3


Isosurface of the density (value=1.3) at times t=0.75 and t=1.5 (symmetrical visualization in y- and z-direction)

bfstep3d_3diso13s1.gif     bfstep3d_3diso13s2.gif


Isosurface of the density (value=1.0) at times t=0.75 and t=1.5 (symmetrical visualization in y- and z-direction)

bfstep3d_3diso10s1.gif     bfstep3d_3diso10s2.gif


Grids of the second refinement level with isosurface at rho=1.0

bfstep3d_3diso1grid2.gif


Benchmark


Task P=1 P=2 P=4
s % s % s %
Integration 22363 52.5 7104 40.0 3326 40.0
Flux correction 1956 4.6 373 2.1 261 3.1
Boundary setting 6722 15.8 6931 39.1 3606 43.4
Recomposition 7547 17.7 2343 13.2 682 8.2
Clustering 1108 2.6 332 1.9 150 1.8
Misc. 2908 6.8 654 3.7 282 3.5
Total / Parallel Efficiency 42604 100.0 17737 120.1 8307 128.2

Computing nodes with 256Mb real memory have been used. Due to memory swapping parallel efficiencies higher than 100% have been achieved.


<--- Problem description



-- RalfDeiterding - 06 Dec 2004

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