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2D Euler equations - Explosion in a Box

Variation of Distribution (situation at time t=0.5)

Results: 2 Levels / 3 Levels / Variation of Distribution / Variation of GuC-Factor

Beside the Hilbert space-filling curve a fixed regular distribution can be chosen. For this particular example, the Hilbert space-filling curve and the regular XY-distribution lead to comparable computational times.

Workload for different distribution types. 4 computing nodes are used.


Distribution P1 P2 P3 P4
Hilbert 0.932 1.062 1.044 0.962
X 0.937 1.084 0.999 0.980
Y 0.941 1.079 1.004 0.976
XY 0.982 1.037 1.030 0.950


Distribution with Hilbert space filling curve, Distribution=1

box3_d1.gif


Distribution in x-direction, Distribution=2

box3_d2.gif


Distribution in y-direction, Distribution=3

box3_d3.gif


Distribution in xy-direction, Distribution=5

box3_d5.gif




Benchmark

Task Hilbert X Y XY
s % s % s % s %
Integration 2246 67.2 3243 72.0 3230 71.9 2676 71.7
Flux correction 180 5.4 283 6.3 281 6.3 132 3.5
Boundary setting 315 9.4 171 3.8 164 3.6 134 3.6
Recomposition 496 14.9 676 15.0 686 15.3 678 18.2
Clustering 37 1.1 51 1.1 51 1.1 43 1.2
Misc. 56 2.0 70 1.8 72 1.8 61 1.9
Total / Parallel Efficiency 3329 85.1 4495 63.0 4485 63.2 3584 79.1

P=4, GuC-Factor=2


<--- Problem description



-- RalfDeiterding - 04 Dec 2004


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