Solver: SimpleFoam
Cell count: 22.5 M
Figure 1. Iterate/sec vs number of cores specifying cores per socket (see Table 1 for G100 data)
Table 1. Galileo100 specified cores per socket specified
Nodes | Cores | Iterate/sec | Speedup | Ideal |
| 1/2 | 24 | 0.11 | - | |
| 1 | 48 | 0.21 | 1.9 | 2 |
| 2 | 96 | 0.47 | 4.2 | 4 |
| 4 | 192 | 0.97 | 8.7 | 8 |
| 8 | 384 | 1.98 | 17.8 | 16 |
| 16 | 768 | 4.07 | 36.6 | 32 |
| 32 | 1536 | 7.60 | 68.4 | 64 |
Specifying inside the batch script "--ntasks-per-socket=24" the scalability on G100 is very good, although it was reached almost 20000 of cells per core.
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