<div dir="ltr"><div>Dear Prof. Blaha,</div><div>Thank you for the answer. <br></div><div>You are correct. I have set too tight convergence for force relaxation and stopped the calculations manually when the forces were reasonably small.</div><div>I missed the fact that in this case the mixer should be changed "by hand" and the atoms in the structure will move without explicit "-min".<br></div><div><br></div><div>Sincerely yours,</div><div>Mikhail Nestoklon</div><div><br></div><br><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 17 May 2024 at 12:42, Peter Blaha <<a href="mailto:peter.blaha@tuwien.ac.at">peter.blaha@tuwien.ac.at</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">You did probably previously a minimization (-min) with PBE, which did <br>
not converge or you stopped it manually.<br>
<br>
In any case, you still have in case.inm a line with: MSR1a<br>
<br>
Edit this file and change to MSR1.<br>
<br>
PS: restore the pbe structure. You made a relaxation with completely <br>
wrong forces).<br>
<br>
Am 17.05.2024 um 11:12 schrieb Nestoklon Mikhail:<br>
> Dear wien2k community,<br>
> I faced a strange problem in lmbj calculations with WIEN2k 23.2.<br>
> For an intermediate size system (57 atoms, CsPbBr slab with organic <br>
> ligands and some vacuum):<br>
> 1) I did structure relaxation with PBE,<br>
> 2) "restored" result into another directory,<br>
> 3) made a few iterations to have all files in place, initialized lmbj <br>
> and run it.<br>
><br>
> After about 60 iterations when the system seem to started approaching <br>
> convergence the iterations failed with the message<br>
> > CORE END<br>
> >Mixer - Error. no feasible step small enough, check RMT and model<br>
> >> stop error<br>
><br>
> Which seems strange as I expected this message occurs only in the <br>
> minimization procedure.<br>
><br>
> I tried to remove *.broyd* files and rerun the iterations, but now the <br>
> error is<br>
> > changing TOT to FOR in CsPbBr3_3ML_PEA_BS.in2c<br>
> > while: Badly formed number.<br>
> >> stop error<br>
><br>
> I have two questions:<br>
> 1) Why did the error in the mixer occur and how could it had been <br>
> prevented?<br>
> 2) How can I continue calculations now from where it stopped?<br>
><br>
> Thank you in advance.<br>
><br>
> Sincerely yours,<br>
> Mikhail Nestoklon<br>
><br>
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-- <br>
-----------------------------------------------------------------------<br>
Peter Blaha, Inst. f. Materials Chemistry, TU Vienna, A-1060 Vienna<br>
Phone: +43-158801165300<br>
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