CESM2 run stalls when writing output file: hangs at "Opened file sandbox-case-230-gnu-x2.cam.rh0.0001-01-06-00000.nc to write"

jray

Ray Shi
New Member
What version of the code are you using?
CESM version: cesm2_3_beta17_GUI

Have you made any changes to files in the source tree?
No source code modifications

Describe every step you took leading up to the problem:
Modified config_batch.xml, config_compilers.xml, config_machines.xml with GNU compiler
create case (B1850 + f19_g17), setup, build, submit

If this is a port to a new machine: Please attach any files you added or changed for the machine port (e.g., config_compilers.xml, config_machines.xml, and config_batch.xml) and tell us the compiler version you are using on this machine.
Please attach any log files showing error messages or other useful information.

- It is ported to perlmutter (NERSC), compiler gnu
- No error during the build
- No error message during the run, but it
stuck at "Opened file sandbox-case-230-gnu-x2.cam.rh0.0001-01-06-00000.nc to write" for hours

Describe your problem or question:
I'm running a CESM case using CESM2.3 beta17 on Perlmutter with the GNU compiler. The model compiles and starts running, but during the simulation it hangs at the following message:
"Opened file sandbox-case-230-gnu-x2.cam.rh0.0001-01-06-00000.nc to write 294"
There’s no further progress or error message, and the job remains idle until timeout or manual cancellation.
The log files are attached.

I would appreciate advice/ideas on how to resolve this issue.
 

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