Generating a variable mesh: error in gen_CLMsrfdata

[tomasz]

Hi,
I am following the tutorial from February 2022 on how to create a variable mesh for CESM (see Community_Mesh_Generation_Toolkit/AMWG_DEMO_FEB22-NOTES at master · ESMCI/Community_Mesh_Generation_Toolkit). When trying to generate the CLM surface data (line 503 in the tutorial) I get an error:

ERROR: mapping file for this resolution does NOT exist (/cluster/home/tomaszoe/AMWG_DEMO_FEB22/AMWG_REPO//ne0np4.EUROPE.ne30x8/maps_clm//map_3x3min_nomask_to_ne0np4.EUROPE.ne30x8_nomask_aave_da_c220309.nc).

This looks as if there is a mapping file required between my own grid (ne0np4.EUROPE.ne30x8) and 3x3min. I am confused by this since I though that the need to create mapping files was gone for CESM tags cesm2.3.alpha08a and later. Could anybody comment on this?

Thanks,
Tómas.

 

[tomasz]

It turned out that since I am not using any of NCAR’s machines, a few environmental variables have to be set externally. Then the required mapping files are generated automatically:

• export ESMFBIN_PATH="/path/to/ESMF/module/binaries/"​
• export REGRID_PROC="1" # Number of MPI processors to use.​
• export MPIEXEC="mpirun -np $REGRID_PROC"​

-Tómas.​

 

[patc]

Hi Tomas,

Thank you for the follow up. The NUOPC driver is new so not all of the usage scenarios
have been tested. I will make a note of your problem/solution and add it to the documentation.

--> Patrick