<div dir="ltr">Hi,<div><br></div><div>I've been trying hard to sort it out by myself but I still don't get it. I increased the print level tag to high and then I realized that, after the second SCF cycle, the forces between a couple of atoms are too high</div><div><br></div><div><table border="0" cellpadding="0" cellspacing="0" width="415" style="border-collapse:
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width:310pt">155 1 Al -80.38251986 215.26927889 352.92629495</td>
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O 80.39131459 -215.30119051 -353.02822305</td>
</tr></tbody></table><br></div><div>All interatomic forces are all right after the first cycle. This sharp increase concerns these two atoms after the second SCF cycle. </div><div><b>I rerun the calculation decreasing the time step. Surprisingly, things get worse.</b></div><div><br></div><div>It would be helpful to have the atomic coordinates of the system before the calculation crashes. The file with the atomic positions has only the coordinates of the first step, that is, of the system at the beginning of the calculation. The file is not updated before the crash, even though the input file asks cp2k to do so after every md step. </div><div><br></div><div>I've read lots of things about the outer scf cycle and the preconditioner. I tried everything. I still don't have a clue about what's going on.</div><div><br></div><div>Please, is there anyone who could help me ?</div><div>Manuel</div></div>