Optional tiled history files for ATM

[DeniseWorthen]

Description of changes

Allows the inst and avg history files for the ATM to be written on the cubed sphere tiles instead of the mesh by setting the configuration variable history_tile_atm = cubed sphere tile size (e.g. 96,192,384).

Specific notes

Contributors other than yourself, if any:

CMEPS Issues Fixed (include github issue #): NOAA-EMC/CMEPS #59

Are changes expected to change answers?

• bit for bit
• different at roundoff level
• more substantial

Any User Interface Changes (namelist or namelist defaults changes)?

• Yes
• No. History files for the ATM will be written on the mesh unless tiled history is requested via namelist configuration.

Testing performed if application target is CESM:(either UFS-S2S or CESM testing is required):
verified that ERS_Ld7.f19_g17.B1850.cheyenne_intel.allactive-defaultio was bfb with cesm2_3_alpha07b

Testing performed if application target is UFS-coupled:

• (recommended) UFS-coupled testing
  • description: Tested ufs-weather-model develop branch against a CMEPS feature branch containing these changes. Both inst and avg history files were written for atm, ice and ocn. The files for ice and ocn were compared directly using cprnc and all were B4B. For the atm history files, the history files containing the mesh were post-processed with NCL to write the fields on the individual tiles. Multiple fields at multiple timesteps were checked against the tiled history file output and all were identical.
  • details (e.g. failed tests):

Testing performed if application target is UFS-HAFS:

• (recommended) UFS-HAFS testing
  • description:
  • details (e.g. failed tests):

Hashes used for testing:

• CESM:
  • repository to check out: https://github.com/ESCOMP/CESM.git
  • hash: cesm2_3_alpha07b (updates of cmeps to this branch and share to main)
• UFS-coupled, then umbrella repostiory to check out and associated hash:
  • repository to check out: https://github.com/DeniseWorthen/ufs-weather-model
  • branch: feature/updcmeps
  • hash: b00bf69
• UFS-HAFS, then umbrella repostiory to check out and associated hash:
  • repository to check out:
  • branch:
  • hash:

[jedwards4b]

@DeniseWorthen To be clear I think that this is specific to the fv3 cubed sphere data structure and won't work for other cubed sphere structures.

[DeniseWorthen]

I decided to test in GNU+debug mode and got a seg fault when the restart was being written.

95:#1  0x6a032ba in __med_io_mod_MOD_med_io_write_fb
95:     at /glade/work/worthen/ufs_testcmepsPRs/CMEPS-interface/CMEPS/mediator/med_io_mod.F90:839

I'll need to track that down.