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Simulations, Data Analysis and Algorithms

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Table 3 Breakdown of time for 1 step in seconds for cosmo25 dataset with single-stepping (top half) and multi-stepping (bottom half) on Blue Waters

From: Adaptive techniques for clustered N-body cosmological simulations

#cores Gravity DD TB LB Step time 16 Step time
8,192 33.433 0.441 0.292 1.423 35.589 569.424
16,384 16.952 0.210 0.148 0.851 18.161 290.576
32,768 8.643 0.132 0.091 0.496 9.362 149.792
65,536 4.395 0.163 0.073 0.295 4.926 78.816
131,072 2.353 0.134 0.066 0.216 2.769 44.304
8,192 7.45 0.83 0.47 2.1 10.85 173.6
16,384 3.73 0.79 0.32 1.07 5.91 94.56
32,768 2.1 0.46 0.2 0.55 3.31 52.96
65,536 1.1 0.35 0.12 0.37 1.94 31.04
131,072 0.77 0.24 0.07 0.33 1.41 22.56
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