<div dir="ltr"><div>Some time ago somebody reported something similar, or maybe I got NaN's as well, don't remember. It turned out that the path had zero length. I added the attached patch to the development version.<br></div><div><br>Paolo<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 18, 2017 at 7:32 PM, Maxim Skripnik <span dir="ltr"><<a href="mailto:maxim.skripnik@uni-konstanz.de" target="_blank">maxim.skripnik@uni-konstanz.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Dear QE users and developers,<br>
<br>
I'm trying to get a NEB calculation running. However, it fails after the<br>
SCF for image 2 with the following error:<br>
<br>
Error in routine coset (1):<br>
nsym == 0<br>
<br>
The problem seems to lie in the initial NEB path. The file neb.path<br>
contains NaN values for x,y,z coordinates for images 2-6, where images 1<br>
and 7 are predefined.<br>
<br>
I found exactly the same issue here: <a href="http://qe-forge.org/pipermail/pw_forum/2012-January/097544.html" rel="noreferrer" target="_blank">http://qe-forge.org/pipermail/<wbr>pw_forum/2012-January/097544.h<wbr>tml</a><br>
The solution there was to update to QE 4.3.2. I'm using QE 6.1. Can anybody tell me why the initial path contains NaN values for the atomic<br>
coordinates?<br>
<br>
I've attched the <a href="http://neb.in" rel="noreferrer" target="_blank">neb.in</a>, neb.log and neb.path files.<br>
<br>
Best regards,<br>
Maxim Skripnik<br>
Univ. Konstanz<br>
<br>
<br>
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