Times comes from “maximum elapsed wallclock time” of UM timer diagnostics.
2 model months with monthly restarts.
Job bit-compares across restarts & pe configs on all platforms.
Cannot run with timer on Hector at present so times based on job runtime.
PGI compiler
| EW x NS | Time (secs) |
|---|---|
| 2 x 8 | 134 |
Pathscale compiler
| EW x NS | Time (secs) |
|---|---|
| 2 x 8 | 120 |
| 1 x 8 | 134 |
| 2 x 4 | 152 |
| 4 x 2 | 178 |
| 8 x 1 | 256 |
| EW x NS | Time (secs) |
|---|---|
| 2 x 8 | 128.660 |
| 4 x 4 | 136.800 |
| 8 x 2 | 158.930 |
Model built with -O2 -fastsse -Kieee
GCOM built with no specific optimisations
| EW x NS | Time (secs) | |
|---|---|---|
| 1 x 8 | 161.784 | 164.583 |
| 2 x 4 | 176.123 | |
| 4 x 2 | 201.142 | |
| 8 x 1 | 285.258 | |
| 1 x 4 | 252.023 |
With old GCOM and compile options (-fastsse -Munroll)
| EW x NS | Time (secs) |
|---|---|
| 1 x 8 | 152.889 |
2 model months of xcggb-equivalent jobs.
| EW x NS | Time (secs) |
|---|---|
| 2 x 8 | 118.570 |
| 4 x 4 | 136.450 |
| 8 x 2 | 165.840 |
| 16 x 1 | 243.320 |
| EW x NS | Time (secs) |
|---|---|
| 1 x 8 | 127.140 |
| 2 x 4 | 132.845 |
| 4 x 2 | 157.003 |
| 8 x 1 | 229.418 |