My problem is that at resolution f19_g17 or higher, the simulation is rather slow (our group perhaps need a simulation for 3000 years or longer ), so I wish to use a lower resolution. Is f45_g37 or other low resolution supported? Or if there are other ways to speed up the simulation?Look in $CODEROOT/cime/scripts and run:
When you run ./create_newcase, you will see if the compset and grid combination is tested or not. We are moving away from support for the T31_g37 grid combination. You can also do:
./query_testlists | grep T31_g37
However, if this resolution is what you really need, we recommend that you stick to CESM1.2.2 or earlier.