CESM 2.2.2 with gcc/13.2

[urs_beyerle@env_ethz_ch]

I have to port CESM2 to a new cluster. The software stack the cluster admins provide is gcc/13.2.0 with openmpi/4.1.6. I can build and run a simple aquaplanet case (QSC4), but not a B-compset like B1850. CESM starts but hangs after a few minutes - still using 100% cpu, but no progress. Somewhere just before "Initializing mapper_So2a".

Has anybody used gcc 13 or later for CESM2? I tested CESM 2.2.1 and 2.2.2 so far. I can provide more debug info, if needed. And I will do more tests in the meantime.

 

[jedwards]

I have built with gcc 13 and cesm2.2.2 on derecho, but I haven't run a B case. I strongly recommend that you consider
using cesm2.3.beta17 instead of cesm2.2.2

 

[urs_beyerle@env_ethz_ch]

Thanks Jim. I gave it up with gcc 13 for the time being.
Now the cluster has a software stack with gcc/8.5.0 and openmpi/4.1.6 and cesm 2.2.2 works