Model blowup on ecmwf-atos for TCO319-DART configuration, mzapponi_refactoring4awicm3.1 branch

[tsemmler05]

When running above model configuration with git commit bcbb117, the coupled model blows up after a number of time steps. The number of time steps depends on if it is a cold start or a restart run. If it is a restart run, it also depends on which restart files are used. eta_z is from one time step to the next out of the range -10 / +10; from one to the next time step the temperature drops from a reasonable value (for example 8 or 15 C) to a large negative value (around -25 C).

When I change to the git commit e2f45f0, the one that is running without any problems on DKRZ levante, I get a seg fault straight away:

FESOM start iteration before the barrier...
FESOM start iteration after the barrier...

^[[32m____________________________________________________________^[[0m
^[[7;32m --> FESOM STARTS TIME LOOP ^[[0m
file : namelist.io open ok
io_listsize will be changed from 100 to 39 !
adding I/O stream 2D for sst
[ac1-3055:2759318:0:2759318] Caught signal 11 (Segmentation fault: address not mapped to object at address 0x10)

[JanStreffing]

Hey Tido, could you compile with debug flags to change the error into something more interpretable? To do that you need to change a bit the src/CMakeLists.txt . Which compile are you using?