<div dir="ltr">You probably have to drop/change the optimization level and/or use -ftz (perhaps -noftz). I have seen related issues in mixer when small numbers are added leading to NaN's being output. I blame this on Intel, although I may be wrong.</div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Aug 14, 2017 at 7:49 AM, Fecher, Gerhard <span dir="ltr"><<a href="mailto:fecher@uni-mainz.de" target="_blank">fecher@uni-mainz.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I experienced a problem with dstart of version 17.1,<br>
an error appears as given below when running a calculation for the attached structure (initialisation with defaults).<br>
A closer look, however, shows that this error does not result from lapw2 but from dstart.<br>
(I found NANs in some files used by lapw0, lapw1, lapw2.)<br>
<br>
No error appears when initializing the calculation with dstart from Version 16.1<br>
(only dstart, but all other routines from 17.1).<br>
<br>
The problem appears not for just this structure file but also for other similar compounds (I checked carefully)<br>
The dstart problem does not appear for all systems, other test cases (elements and binaries) seem to be ok.<br>
<br>
<br>
> stop error<br>
<br>
lapw2c 0000000000403A29 Unknown Unknown Unknown<br>
<a href="http://libc-2.22.so" rel="noreferrer" target="_blank">libc-2.22.so</a> 00002AC0C1EA06E5 __libc_start_main Unknown Unknown<br>
lapw2c 0000000000403B1E Unknown Unknown Unknown<br>
lapw2c 00000000004881F8 MAIN__ 375 lapw2_tmp_.F<br>
lapw2c 0000000000446600 fermi_ 111 fermi_tmp_.F<br>
lapw2c 000000000044715C fermi_tetra_ 515 fermi_tmp_.F<br>
lapw2c 00000000004EE7DC Unknown Unknown Unknown<br>
lapw2c 00000000004BCB33 Unknown Unknown Unknown<br>
Image PC Routine Line Source<br>
forrtl: severe (59): list-directed I/O syntax error, unit 30, file /home/fecher/Bands_Work/<wbr>Wien2k/test/test/test.energy<br>
LAPW1 END<br>
LAPW0 END<br>
<br>
<br>
For those that are wondering why I calculate that, see: T Gruner et al., Nature Physics (2017) DOI: 10.1038/NPHYS4191<br>
<br>
Ciao<br>
Gerhard<br>
<br>
DEEP THOUGHT in D. Adams; Hitchhikers Guide to the Galaxy:<br>
"I think the problem, to be quite honest with you,<br>
is that you have never actually known what the question is."<br>
<br>
==============================<wbr>======<br>
Dr. Gerhard H. Fecher<br>
Institut of Inorganic and Analytical Chemistry<br>
Johannes Gutenberg - University<br>
55099 Mainz<br>
and<br>
Max Planck Institute for Chemical Physics of Solids<br>
01187 Dresden<br>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><span style="font-size:12.8px">Professor Laurence Marks</span><br></div><div dir="ltr"><span style="font-size:12.8px">"Research is to see what everybody else has seen, and to think what nobody else has thought", </span><span style="font-size:12.8px">Albert Szent-Gyorgi</span><br><a href="http://www.numis.northwestern.edu" target="_blank">www.numis.northwestern.edu</a> ; <span style="font-size:12.8px">Corrosion in 4D: </span><a href="http://MURI4D.numis.northwestern.edu" style="font-size:12.8px" target="_blank">MURI4D.numis.northwestern.edu</a><div><span style="font-size:12.8px">Partner of the CFW 100% program for gender equity, </span><a href="http://www.cfw.org/100-percent" style="font-size:12.8px" target="_blank">www.cfw.org/100-percent</a></div><div>Co-Editor, Acta Cryst A</div></div></div></div></div></div></div></div></div></div></div>
</div>