CTSM in single point mode

[idunkl]

Hi everyone,
I'm trying to set up a single point simulation with CTSM (version 5.1.dev086) following this. Here is my setup:

./create_newcase --case /home/m/m300755/CTSM_runs/Site10 --res f09_g17 --compset I1850Clm50BgcCropCmip6 --run-unsupported --mach levante --pecount 1
cd /home/m/m300755/CTSM_runs/Site10
./xmlchange ROOTPE=0,PTS_LAT=52,PTS_LON=7
./xmlchange MOSART_MODE=NULL

• PTS_MODE does not exist anymore
• Not using --pecount 1 gives the error single column mode must be run on 1pe
• Adding MPILIB=mpi-serial,NTASKS=1leads to a build error

I don't know what the problem is at this point. Happy to hear solutions or other approaches to single point simulations.
Thanks a lot in advance!

 

[oleson]

Hopefully this discussion will help:

How do I create a single-point run with the NUOPC (default) coupler? · ESCOMP CTSM · Discussion #1833

We get this question a lot: I am trying to set up a case for a specific latitude and longitude. I want to use GSWP3 climate data, how do I set this up?

github.com

 

[idunkl]

Hi, I have tried that method before, however I ran into some difficulties with the scripts used to subsetting the forcing and creating the domain files.
Using ./subset_data point i got stuck here:

./subset_data point --lat 52.5 --lon 7.5 --site my_point --create-surface --create-datm --datm-syr 1901 --datm-eyr 2000 --include-nonveg --create-user-mods --outdir /work/mj0143/m300755/CTSM_forcing/my_loc --overwrite
WARNING: No dominant pft type is chosen. If you want to choose a dominant pft type, please use --dompft flag.
Traceback (most recent call last):
File "./subset_data", line 42, in <module>
main()
File "/work/mj0143/m300755/CTSM_CODE/MODEL_CODE/tools/site_and_regional/../../python/ctsm/subset_data.py", line 580, in main
subset_point(args, file_dict)
File "/work/mj0143/m300755/CTSM_CODE/MODEL_CODE/tools/site_and_regional/../../python/ctsm/subset_data.py", line 461, in subset_point
args.user_mods_dir)
File "/work/mj0143/m300755/CTSM_CODE/MODEL_CODE/tools/site_and_regional/../../python/ctsm/site_and_regional/single_point_case.py", line 514, in create_surfdata_at_point
self.update_metadata(f_out)
File "/work/mj0143/m300755/CTSM_CODE/MODEL_CODE/tools/site_and_regional/../../python/ctsm/site_and_regional/base_case.py", line 183, in update_metadata
sha = get_ctsm_git_short_hash()
File "/work/mj0143/m300755/CTSM_CODE/MODEL_CODE/tools/site_and_regional/../../python/ctsm/git_utils.py", line 24, in get_ctsm_git_short_hash
["git", "-C", path_to_ctsm_root(), "rev-parse", "--short", "HEAD"]
File "/home/m/m300755/.conda/envs/ctsm_pylib/lib/python3.7/subprocess.py", line 411, in check_output
**kwargs).stdout
File "/home/m/m300755/.conda/envs/ctsm_pylib/lib/python3.7/subprocess.py", line 488, in run
with Popen(*popenargs, **kwargs) as process:
File "/home/m/m300755/.conda/envs/ctsm_pylib/lib/python3.7/subprocess.py", line 800, in __init__
restore_signals, start_new_session)
File "/home/m/m300755/.conda/envs/ctsm_pylib/lib/python3.7/subprocess.py", line 1551, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'git': 'git'

 

[oleson]

I see. I'll ping the software engineers here to see if they can help. @erik @samrabin

 

[samrabin]

That's… a very strange error. Is git maybe not installed or available on the machine you're using? Somehow?

 

[idunkl]

Git is installed, and I activated the ctsm_pylib environment.

 

[oleson]

I'm not sure this will tell us anything, but what do you get if you do this in the top level of your clone:

git -C . rev-parse --short HEAD

 

[idunkl]

I tried it on a different machine and I got it to run (still don't know what cause the problem..). Thanks for the support!