If someone has a rough idea of how many nodes they want to use, I've been asked to suggest configurations they should use. I'm bit uncomfortable with this, because by writing down a configuration it suggests that I've done extensive testing to check that all the options printed are best, e.g. checked the alternative PE decompositions which give the same number of nodes, looked at whether it's better to use two threads or one in this case, chosen the optimum number of IO servers etc. And in truth, I've done some of this in each case and made educated guesses elsewhere. Given this proviso, here's the configurations I'm suggesting.
| 14 nodes | 37 nodes* | 84 nodes | |
|---|---|---|---|
| (ATM_PROCX,ATM_PROCY) | (20,18) | (42,28) | (48,28) |
| OMPTDR_ATM | 1 | 1 | 2 |
| IOS_NPROC | 0 | 0 | 6 |
| (NEMO_IPROC,NEMO_JPROC) | (12,9) | (12,9) | (18,16) |
| (CICE_BLKX,CICE_BLKY) | (30,37) | (30,37) | (20,21) |
| XIOS_NPROC | 6 | 6 | 6 |
| Summary of resources | |||
| Nodes for ATMOS | 10 | 33 | 75 |
| Nodes for OCEAN | 4 | 4 | 9 |
| Expected speed (model years/day) | 2.4 | 4.5 | 6.5 |
| 16 nodes | 42 nodes | ||
|---|---|---|---|
| (ATM_PROCX,ATM_PROCY) | (24,18) | (48,28) | |
| OMPTDR_ATM | 1 | 1 | |
| IOS_NPROC | 0 | 0 | |
| (NEMO_IPROC,NEMO_JPROC) | (12,9) | (12,9) | |
| (CICE_BLKX,CICE_BLKY) | (30,37) | (30,37) | |
| XIOS_NPROC | 6 | 6 | |
| Summary of resources | |||
| Nodes for ATMOS | 12 | 38 | |
| Nodes for OCEAN | 4 | 4 | |
| Expected speed (model years/day) | 1.4 | 2.2 | |
