<div dir="ltr">I am using espresso 5.0.3. Thanks,<div>Sridhar</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Mar 7, 2014 at 1:30 PM, Paolo Giannozzi <span dir="ltr"><<a href="mailto:paolo.giannozzi@uniud.it" target="_blank">paolo.giannozzi@uniud.it</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Code version? P.<br>
<div><div class="h5"><br>
On Thu, 2014-03-06 at 23:36 +0530, Sridhar Sadasivam wrote:<br>
> Hello,<br>
><br>
><br>
> I am working on an electron-phonon coupling calculation of a large<br>
> system (30 atoms). At each q-point I will have 30 x 3 = 90 irreducible<br>
> representations. This will take a lot of computer time and I expect<br>
> that my calculation will be interrupted (due to max wall time<br>
> limitations in the computing cluster I use). So I will need to restart<br>
> the calculation many times.<br>
><br>
><br>
> To test if everything runs fine, I tried to run an electron-phonon<br>
> coupling calculation on a simple 1 atom system. For a particular<br>
> q-point I had 2 irreducible representations and I interrupted my<br>
> calculation after the self-consistent calculation for the 1st<br>
> representation. I then restarted the calculation setting "recover<br>
> = .true.". The calculation starts with the 2nd representation and<br>
> seems to complete, but the electron-phonon linewidths are wrong, i.e.,<br>
> the results don't match the results I get when I run without any<br>
> interruption. The phonon frequencies are correct in the interrupted<br>
> calculation but the electron-phonon results are not. For some reason,<br>
> restarting an interrupted ph.x calculation does not give the correct<br>
> results for electron-phonon coupling.<br>
><br>
><br>
> Does anyone know how I can resolve this issue? This is crucial as I<br>
> will not be able to run the large system (30 atoms) without having to<br>
> restart many times.<br>
><br>
><br>
> I would really appreciate if someone could help me out on this. Please<br>
> let me know if my question isn't clear and I can attach output files<br>
> as well.<br>
> Regards,<br>
> Sridhar<br>
> Purdue University,<br>
> USA<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
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<span class="HOEnZb"><font color="#888888"><br>
--<br>
Paolo Giannozzi, Dept. Chemistry&Physics&Environment,<br>
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy<br>
Phone <a href="tel:%2B39-0432-558216" value="+390432558216">+39-0432-558216</a>, fax <a href="tel:%2B39-0432-558222" value="+390432558222">+39-0432-558222</a><br>
<br>
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