<p dir="ltr">I am not sure exactly what the problem(s) were, but from you case.scf it was "right" that there were Warnings</p>
<p dir="ltr">a) :FCHECK (bottom of case.scf) was large. This is the sum of all the forces, and should be small. Particularly for cells without inversion one can get bad, highly asymmetric densities in which case MSR1a can have problems.</p>
<p dir="ltr">b) The greed is small. Too small a value can be as bad as too large. I have struggled with this for years and failed to find a strong ansatz for this, although I believe the next release of the mixer will be better.</p>
<p dir="ltr">I am not sure what the calculation is, perhaps an oxide surface where you have made a guess at the initial structure and want to minimize to something more reasonable. Sometimes a physically unreasonable initial guess will converge to something reasonable, sometimes not. I strongly suggest trying to use cells with inversion, they behave much, much better. I also strongly suggest that you look at the Bond Valence Sums (BVS) and tweak the initial positions until they are reasonable. (x nn ; grep Bond *tnn). If, for instance, you have highly underbonded O (e.g. 0.8) it can take forever and the calculations can be unstable -- convergence is faster the more physical are the atomic positions.</p>
<p dir="ltr">Good luck.</p>
<p dir="ltr">---<br>
Professor Laurence Marks<br>
Department of Materials Science and Engineering<br>
Northwestern University<br>
<a href="http://www.numis.northwestern.edu">http://www.numis.northwestern.edu</a><br>
Corrosion in 4D <a href="http://MURI4D.numis.northwestern.edu">http://MURI4D.numis.northwestern.edu</a><br>
Co-Editor, Acta Cryst A<br>
"Research is to see what everybody else has seen, and to think what nobody else has thought"<br>
Albert Szent-Gyorgi</p>
<div class="gmail_quote">On Nov 3, 2015 03:19, "Elias Assmann" <<a href="mailto:elias.assmann@gmail.com">elias.assmann@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">-----BEGIN PGP SIGNED MESSAGE-----<br>
Hash: SHA1<br>
<br>
On 11/02/2015 05:04 PM, Peter Blaha wrote:<br>
> if ($icycle == 1 && $itestdis < 100000 && "$itestmem" == "0" &&<br>
> $?firstcheck) then echo 0.2 >.pratt unset firstcheck rm *.broy* if<br>
> ($testmsr == 'MSR') cp $file.struct_old $file.struct <---comment<br>
<br>
You are going to laugh, but this line is missing in my version of<br>
run(sp) [from 14.2]. Also, I am pretty sure I had deleted all *_old<br>
files before starting the calculation, so I am really not sure how the<br>
old RMTs could have crept back in.<br>
<br>
> goto mixer endif<br>
<br>
<br>
Elias<br>
<br>
-----BEGIN PGP SIGNATURE-----<br>
Version: GnuPG v1<br>
Comment: Using GnuPG with Icedove - <a href="http://www.enigmail.net/" rel="noreferrer" target="_blank">http://www.enigmail.net/</a><br>
<br>
iQIcBAEBAgAGBQJWOHt1AAoJEE/4gtQZfOqPjSsQAIm5p02jZp6JTyoyoRnWsBTF<br>
mLs4SM8ruYEIt3RXLCffp5pjnoxajlcUmhXQK/X5DFijOJinPzTOz55qo+4IDsyw<br>
NflwA/ZIwEmOIf+xb8kfGHFrKikh1fPLzURsPcnUgsZicQHNdzBBNMoD7R1kbc/D<br>
kEQbHequiY9gIHzE39/oO1Uq+2ARCOza7niTHzmZIr63STwvLfkb90r5puwI2F/D<br>
APC6sZA/Yzqc80gujdCPOwqrsg8p3ZZfYN3vYn0w5YEybCXVHCV9oZFUhQvR8bBY<br>
ejFVlSgtkjQnBy8RScpK6mUThvpfROKPaG0xq9raWNXkLcGvXnXrtwPV26MQ5d5D<br>
AnzINCqVAn3Fbjf0whIXRb9RU7k3eyBki9REJbpBg4qfRXEKajKb/lH0Ah6P9/7/<br>
7r6nXvkUiULeVd1HNCb4Zjtppkfu/UO23Q1DBkYoGvKRVyPlm1JtpkipMh6R10x9<br>
dMYR07Ai32IDxFS3X1z+WjIrdv0XAoW+SXaKne38zxpCg/A3WLFWE4sPlItrljWV<br>
dm8ep35cd8JuL1/mJrN4tBd8FShJd9Zhb6qu8Sd04RSI66YpHVODdRXEbmIZfYvD<br>
aUGHppQMKAPCN9ICC3l5kYQ62ppJP8GMJtLuoe3SNCQCa6hTD2C1Cs0qMS+arosZ<br>
ztoOyFRKRKg6YKglJ4+I<br>
=Tyd9<br>
-----END PGP SIGNATURE-----<br>
_______________________________________________<br>
Wien mailing list<br>
<a href="mailto:Wien@zeus.theochem.tuwien.ac.at">Wien@zeus.theochem.tuwien.ac.at</a><br>
<a href="http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien" rel="noreferrer" target="_blank">http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien</a><br>
SEARCH the MAILING-LIST at: <a href="http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html" rel="noreferrer" target="_blank">http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html</a><br>
</blockquote></div>