This step builds ufs.exe in about 8 minutes:
./case.build
The last part of the output looks like:
Building case in directory /glade/scratch/$USER/ufs-mrweather-app-workflow.c96 ...
Building atm with output to /glade/scratch/$USER/ufs-mrweather-app workflow.c96/bld/atm.bldlog.200930-094156
ufsatm built in 484.297560 seconds
Building ufs from
/glade/p/ral/jntp/$USER/my_ufs_sandbox/cime/../src/model/NEMS/cime/cime_config/bui ldexe with output to /glade/scratch/$USER/ufs-mrweather-app
workflow.c96/bld/ufs.bldlog.200930-094156
Time spent not building: 6.931199 sec
Time spent building: 485.038825 sec
MODEL BUILD HAS FINISHED SUCCESSFULLY
Building atm with output to /glade/scratch/$USER/ufs-mrweather-app workflow.c96/bld/atm.bldlog.200930-094156
ufsatm built in 484.297560 seconds
Building ufs from
/glade/p/ral/jntp/$USER/my_ufs_sandbox/cime/../src/model/NEMS/cime/cime_config/bui ldexe with output to /glade/scratch/$USER/ufs-mrweather-app
workflow.c96/bld/ufs.bldlog.200930-094156
Time spent not building: 6.931199 sec
Time spent building: 485.038825 sec
MODEL BUILD HAS FINISHED SUCCESSFULLY
Once the build has finished successfully, check bld and run to see the results of the build process.