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<p>Dear ProjectWay95<br>
</p>
<p>Please provide an affiliation...</p>
<p>The error is quite clear. Force calculation with the tetrahedron
method is not recommended.</p>
<p>Don't know exactly but if the tetrahedron method of Blöchl is
used, forces can be wrong by<br>
a few percent - that's why the error.</p>
<p>Thomas<br>
</p>
<br>
<div class="moz-cite-prefix">On 03/08/2017 09:23 PM, project way
wrote:<br>
</div>
<blockquote
cite="mid:CAMWx57Eeu2d+Yi2NwB=vJk+WmMwKPoVGR-2t5JHoCf6SLsq6Lw@mail.gmail.com"
type="cite">
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<div>Dear QE Developers and users<br>
<br>
</div>
<div>Is there any limitations for changing occupations from
smearing to tetrahedra?<br>
<br>
when i do it the following error occurs :<br>
<br>
Error in routine iosys (1):<br>
force calculation with tetrahedra not recommanded: use
smearing<br>
<br>
<br>
</div>
<div>regards</div>
</div>
<br>
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Dr. rer. nat. Thomas Brumme
Max Planck Institute for the Structure and Dynamics of Matter
Luruper Chaussee 149
22761 Hamburg
Tel: +49 (0)40 8998 6557
email: <a class="moz-txt-link-abbreviated" href="mailto:Thomas.Brumme@mpsd.mpg.de">Thomas.Brumme@mpsd.mpg.de</a>
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