Table 3
Average wall-clock time for the different benchmark tests and sections of the code relevant to the IAD0 calculation.
| Particles | Threads | θ |
|
|
|
|
|
IAD0 overhead |
|
|
||||||||
| 20 000 | 1 | 0.6 | 3.84 | 0.85 | 4.51 | 0.55 | 0.99 | 17.97% |
| 50 000 | 1 | 0.6 | 11.27 | 2.45 | 13.32 | 1.40 | 3.05 | 17.75% |
| 150 000 | 1 | 0.6 | 40.29 | 8.12 | 47.18 | 4.80 | 10.26 | 17.22% |
| 500 000 | 1 | 0.6 | 148.87 | 28.24 | 175.40 | 18.11 | 36.42 | 17.66% |
| 1 500 000 | 1 | 0.6 | 474.68 | 88.50 | 558.69 | 56.33 | 116.56 | 17.78% |
| 5 000 000 | 1 | 0.6 | 1750.95 | 341.29 | 2082.26 | 198.11 | 473.78 | 18.88% |
|
|
||||||||
| 500 000 | 12 | 0.6 | 27.27 | 3.73 | 30.37 | 1.73 | 4.33 | 8.50% |
| 5 000 000 | 12 | 0.6 | 311.51 | 38.08 | 347.76 | 18.23 | 48.70 | 9.26% |
|
|
||||||||
| 50 000 | 1 | 0.3 | 14.28 | 2.47 | 16.46 | 1.42 | 3.09 | 14.29% |
| 150 000 | 1 | 0.3 | 48.25 | 8.16 | 55.10 | 4.81 | 10.22 | 14.24% |
Notes. θ is the parameter for opening the nodes in the tree when calculating gravity. TOT, MOM, and CAL stand for total time per iteration, momentum and energy equation calculations, and IAD0 terms calculation, respectively. All times are expressed in seconds.
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