Dear CFDEM users,
I am using the CFDEM 2.3 and have been bothered with "Segmentation fault" errors these days. I have done a few cases using this version and it worked fine, at lest no strange errors. But recently I set up a case almost the same with the other one except for the drag force, and the "Segmentation fault" error emerged along. The case will "cash" or stop at somewhere around 0.2s whaterver I change the settings, and the output is like this:
Time = 0.17394
Courant Number mean: 0.0454717 max: 1.05449
- evolve()
Starting up LIGGGHTS
Executing command: 'run 10 '
WARNING: Dump mesh/gran/VTK contains a mesh with no velocity allocated, will not dump velocity
run 10 WARNING: Dump mesh/gran/VTK contains a mesh with no velocity allocated, will not dump velocity
Setting up run ...
WARNING: Dump mesh/gran/VTK contains a mesh with no velocity allocated, will not dump velocity
WARNING: Dump mesh/gran/VTK contains a mesh with no velocity allocated, will not dump velocity
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mpirun noticed that process rank 0 with PID 19179 on node node15 exited on signal 11 (Segmentation fault).
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It seems something wrong with the openmpi and parallel commucation, but I do not know where the key reason is located. I am sure that the case is stoped unusual (not crash) and I wonder someone could give me some hints. Thank you very much!
Best wishes!