A fix for ROF_NCPL failure in an NCPL consistency test for several compsets

[kdraeder]

I don't see any related issues in ESCOMP/CMEPS, so I'm opening one.

I tried to build a case with resolution TL319_t232 and compset G_JRA_RYF in CESM3_0_beta05, but got a rof_cpl_time error:

ERROR: assume that rof_cpl_time is always greater than or equal to ocn_cpl_time

I didn't change any coupling times in the setup. OCN_NCPL: 24 ROF_NCPL: 48

I'm guessing the 48 comes from the choice of compset and components/cmeps/cime_config/config_component_cesm.xml:

  <entry id="ROF_NCPL">
    <type>integer</type>
    <default_value>8</default_value>
    <values match="last">
      <value compset="_DATM.*_MOM6.*_DROF"        >[B]$ATM_NCPL[/B]</value>

I changed the ATM_NCPL to OCN_NCPL in that xml ROF 'compset' line, to make it consistent with components/cmeps/cime_config/runseq/runseq_general.py:

  if rof_cpl_time < ocn_cpl_time:
       expect(False, "assume that rof_cpl_time is always greater than or equal to ocn_cpl_time")

The model built successfully, so this looks like a solution, if not the optimal solution.

[kdraeder]

@ekluzek @jedwards4b If anyone thinks this is the right solution at the moment, I can open a PR about it. If a more comprehensive solution would be better, then someone familiar with CMEPS should probably handle it.

[jedwards4b]

I agree that is the correct solution, @alperaltuntas what do you think?

[alperaltuntas]

Sounds good to me too.

[kdraeder]

Thanks for the guidance! Is cesm3_0_beta05-1-g8e7888c a good enough version to use in a PR?

[jedwards4b]

The best place to start is the head of the development branch for the component you are working on, in this case it would be the 'main' branch of cmeps.

[kdraeder]

My cesm clone is in /glade/work/raeder/Models/cesm3_0_beta05. I synced my github kdraeder fork of cmeps and set my 'origin' to be that fork. I pulled main from there and checked out a new development branch. I made my code change and committed it. Now I'm trying to build the case, but that's failing. /glade/derecho/scratch/raeder/Test_ROF_NCPL_bld/bld/csm_share.bldlog.250409-123834:

/glade/work/raeder/Models/cesm3_0_beta05/components/cmeps/cesm/nuopc_cap_share/driver_pio_mod.F90(9): 
  error #6580: Name in only-list does not exist or is not accessible.   [SHR_LOG_ERROR]
  use shr_log_mod,  only : shr_log_getLogUnit, shr_log_error
-----------------------------------------------^

Did I need to run git-fleximod again? Or is this updated cmeps incompatible with the cesm3_0_beta05 I'm working in, so I need to update that whole thing?

[jedwards4b]

Its the later - update to cesm3.0-alphabranch, then run git-fleximod update then test.