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Unable to build case with MUSICA regional refinement grid

James King

James King
Member
Hi all,

I've made a regionally-refined grid using MUSICA by following the steps in the tutorial. However, case.build fails with:

ERROR: Could not initialize Grids

when I try to build the case. It's a case using the FCHIST compset and I'm running CESM2.2.0 on Cheyenne. I'm not sure where to look for the source of the error - does anyone have any suggestions? I'm prepared for the grid itself to crash the model at some point (this is very much a test case) but I haven't got to that stage yet...

Thanks,

James
 

patc

Patrick Callaghan
New Member
Hi James,

With the recent transition from MCT to NUOPC, there are 2 separate
processes for generating and using VR grids. My first guess is that
you are following the NUOPC steps and not the older MCT process.
In the Community_Mesh_Generation_Toolkit,


Verify that you are following the tutorial and NOTES in the
AMWG_FEB21_DEMO_FILES subdirectory in VRM_Tools/Docs/
which is for MCT and not the more recent directory for the FEB22 DEMO.

--> Patrick
 

James King

James King
Member
Thanks. At the moment it looks like it's not just this case as I get the same error when trying to build a case with an out-of-the-box grid using the same installation of CESM2.2.0. Is there a reason why switching to NUOPC might have caused this to happen, and should I just try again with a new CESM2 installation?

Best,

James
 

patc

Patrick Callaghan
New Member
Hi James,

The configuration of grids and related mapping files is different for NUOPC, but
if you are having a problem with a 1 degree uniform grid out of the box, then the
problem is likely not related to the VR grid. Definitely start with a clean CESM2.2
and establish a 5-day out-of-the-box run with a uniform 1 degree grid before
worrying about variable resolution grids and MCT/NUOPC issues. Once you have
that working, then go thru the MCT tutorial and verify each step along the way to
add your new grid.

--> Patrick
 
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