<div dir="auto">For certain the symmetrization should NOT be removed from the mixer. I will tweak it. I am afraid that I disagree with Peter about removing it elsewhere, as it will lead to errors of about 1D-7 for irrational rotation matrices. While this may not seem large, it is equivalent to using single precision (not double).<div dir="auto"><br><div data-smartmail="gmail_signature" dir="auto">---<br>Prof Laurence Marks<br>"Research is to see what everyone else has seen, and to think what nobody else has thought", Albert Szent-Gyorgi<br><a href="http://www.numis.northwestern.edu">www.numis.northwestern.edu</a></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jan 26, 2021, 07:43 Martin Kroeker <<a href="mailto:martin@ruby.chemie.uni-freiburg.de">martin@ruby.chemie.uni-freiburg.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thank you very much for the confirmation. I did see that the additional<br>
symmetrization attempts appear to play an important role, but assumed<br>
they were added for a reason (and I certainly did not want to bring back<br>
any old problems that may have been successfully worked around by it).<br>
<br>
So far I have not had time to check much beyond the SCF cycle - lapw0,<br>
lapw1, lapw2 and possibly mixer are affected. With the mixer, the<br>
actual issue may have been only a side effect from combining your<br>
Intel-compiled binaries with my gfortran. (As a side note, it appears<br>
that the line in the "x_lapw" script that adds a non-conformant declaration<br>
for UNIT 15 to lapw2.def - a problem noted in june 2019 for version<br>
19.1, is still present in the current distribution. Cf<br>
<a href="https://urldefense.com/v3/__https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg18771.html__;!!Dq0X2DkFhyF93HkjWTBQKhk!F4tUonmkB9GDF934QjELPEk8X7KMT0KqQay4J1pPyXFrqpHiYjsI6xCy0n9I-MvKGpsLhA$" rel="noreferrer noreferrer" target="_blank">https://urldefense.com/v3/__https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg18771.html__;!!Dq0X2DkFhyF93HkjWTBQKhk!F4tUonmkB9GDF934QjELPEk8X7KMT0KqQay4J1pPyXFrqpHiYjsI6xCy0n9I-MvKGpsLhA$</a> <br>
<br>
I can provide patches for the rotdef.f in lapw1/lapw2/mixer - which each<br>
have a slightly different version of it due to added variables - if desired.<br>
At a glance, the copies used in telnes, aim and arrows could be affected<br>
as well.<br>
-- <br>
Dr. Martin Kroeker <a href="mailto:martin@ruby.chemie.uni-freiburg.de" target="_blank" rel="noreferrer">martin@ruby.chemie.uni-freiburg.de</a><br>
c/o Prof.Dr. Caroline Roehr<br>
Institut fuer Anorganische und Analytische Chemie der Universitaet Freiburg<br>
<br>
_______________________________________________<br>
Wien mailing list<br>
<a href="mailto:Wien@zeus.theochem.tuwien.ac.at" target="_blank" rel="noreferrer">Wien@zeus.theochem.tuwien.ac.at</a><br>
<a href="https://urldefense.com/v3/__http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien__;!!Dq0X2DkFhyF93HkjWTBQKhk!F4tUonmkB9GDF934QjELPEk8X7KMT0KqQay4J1pPyXFrqpHiYjsI6xCy0n9I-MuDYPE9uA$" rel="noreferrer noreferrer" target="_blank">https://urldefense.com/v3/__http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien__;!!Dq0X2DkFhyF93HkjWTBQKhk!F4tUonmkB9GDF934QjELPEk8X7KMT0KqQay4J1pPyXFrqpHiYjsI6xCy0n9I-MuDYPE9uA$</a> <br>
SEARCH the MAILING-LIST at: <a href="https://urldefense.com/v3/__http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html__;!!Dq0X2DkFhyF93HkjWTBQKhk!F4tUonmkB9GDF934QjELPEk8X7KMT0KqQay4J1pPyXFrqpHiYjsI6xCy0n9I-MsiDLvR6Q$" rel="noreferrer noreferrer" target="_blank">https://urldefense.com/v3/__http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html__;!!Dq0X2DkFhyF93HkjWTBQKhk!F4tUonmkB9GDF934QjELPEk8X7KMT0KqQay4J1pPyXFrqpHiYjsI6xCy0n9I-MsiDLvR6Q$</a> <br>
</blockquote></div>