Thank you very much for your support, this is what I found
out (regarding the relatively simple toy-simulation in the
attachment):
All Tests done w/LAMMPS 2018.08.02
* Simulation without writing sorted (id) dump files will run
perfectly and forever,
* Simulation w/standard sorting at dumps will crash reproducibly
at step 00369000 during writing the dump file (4h on my desktop
machine).
* Simulation with LAMMPS compiled w/-DLMP_QSORT and sorting at dumps
will NOT crash at this said point (and is still running).
Regards,
M.
lmp_mc_sortid.in (4.49 KB)
lmp_mc_nosort.in (4.49 KB)
spc.shake.mol (531 Bytes)