GEOS-5 Run-Time Characteristics for Heracles 5.2
Performance at various resolutions
| Resolution | CPUs (typical) | Timestep (sec) | Wall Clock (Hours) | Throughput (Days per day) | CPU Hours | Typical Data Volume (GB) | Notes |
|---|---|---|---|---|---|---|---|
| C12 (8-deg) | 24 | 900 | 0.16 | 1380 | 5 | 4 | Reynolds Ocean |
| C24 (4-deg) | 96 | 900 | 0.20 | 1340 | 5 | 6 | Reynolds Ocean |
| C48 (2-deg) | 96 | 900 | 0.30 | 745 | 8 | 13 | |
| C90 (1-deg) | 96 | 900 | 0.65 | 383 | 15 | 38 | |
| C180 (0.5-deg) | 216 | 450 | 1.67 | 150 | 360 | 140 | |
| C360 (0.25-deg) | 864 | 450 | 2.25 | 107 | 1980 | 530 | |
| C720 (14-km) | 1536 | 225 | 8.15 | 26 | 12600 | 2090 |
AGCM Scaling for Cubed-Sphere Version at C180 (1/2 deg, 2 day run)
| Layout NX | Layout NY | Total PEs | Total Time (sec) | Dynamics Time (sec) | Physics Time (sec) | Dynamics Percent | Physics Percent |
|---|---|---|---|---|---|---|---|
| 6 | 36 | 216 | 1170 | 407 | 667 | 34.8% | 57.0% |
| 8 | 36 | 288 | 945 | 326 | 536 | 34.5% | 56.7% |
| 8 | 48 | 384 | 780 | 269 | 426 | 34.5% | 54.6% |
| 12 | 72 | 864 | % | % |