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I think the input to dos.x (I call it dos.in) looks like this:
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<div class=""> &DOS<br class="">
outdir='./'<br class="">
prefix=‘graphene'<br class="">
fildos=‘graphene.dos',<br class="">
Emin=-10.0, Emax=16, DeltaE=0.002<br class="">
/</div>
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<div class="">You run dos.x after the nscf run. I think the nscf.in should contain the relaxed structure.</div>
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<div class="">For the definition of Emin, Emax and DeltaE, see the online dos.x manual.</div>
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<div class="">Cheers,</div>
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<div class="">Vahid</div>
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<div class="">Vahid Askarpour<br class="">
Department of Physics and Atmospheric Science<br class="">
Dalhousie University,<br class="">
Halifax, NS, Canada</div>
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<blockquote type="cite" class="">
<div class="">On Nov 6, 2017, at 4:19 PM, B S Bhushan <<a href="mailto:ecebhushan@gmail.com" class="">ecebhushan@gmail.com</a>> wrote:</div>
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<div dir="ltr" class="">Dear Experts,
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<div class="">I am trying to extract the DOS profiles for some graphene systems using Supercomputing facility.<br class="">
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<div class="">First, I performed VC-relax and then NSCF (I have not manually updated the relaxed coordinates in the nscf input file, since nscf automatically reads them from previous scf run). Then I tried to execute dos.x, however I am getting segmentation
fault error as shown below.</div>
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<div class="">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div>
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<div class=""> Program DOS v.6.1 (svn rev. 13369) starts on 6Nov2017 at 23:32:32</div>
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<div class=""> This program is part of the open-source Quantum ESPRESSO suite</div>
<div class=""> for quantum simulation of materials; please cite</div>
<div class=""> "P. Giannozzi et al., J. Phys.:Condens. Matter 21 395502 (2009);</div>
<div class=""> URL <a href="http://www.quantum-espresso.org/" class="">http://www.quantum-espresso.org</a>",</div>
<div class=""> in publications or presentations arising from this work. More details at</div>
<div class=""> <a href="http://www.quantum-espresso.org/quote" class="">http://www.quantum-espresso.org/quote</a></div>
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<div class=""> Parallel version (MPI), running on 16 processors</div>
<div class=""> R & G space division: proc/nbgrp/npool/nimage = 16</div>
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<div class=""> Info: using nr1, nr2, nr3 values from input</div>
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<div class=""> Info: using nr1, nr2, nr3 values from input</div>
<div class="">forrtl: severe (174): SIGSEGV, segmentation fault occurred</div>
<div class="">Image PC Routine Line Source</div>
<div class="">dos.x 000000000073A4B1 qexml_module_mp_q 3753 qexml.f90</div>
<div class="">dos.x 000000000055AD27 pw_restart_mp_rea 2101 pw_restart.f90</div>
<div class="">dos.x 00000000005579E4 pw_restart_mp_pw_ 1057 pw_restart.f90</div>
<div class="">dos.x 000000000040A828 read_xml_file_ 240 read_file.f90</div>
<div class="">dos.x 0000000000406331 MAIN__ 95 dos.f90</div>
<div class="">dos.x 000000000040621C Unknown Unknown Unknown</div>
<div class="">libc.so.6 0000003FF541ECDD Unknown Unknown Unknown</div>
<div class="">dos.x 0000000000406119 Unknown Unknown Unknown</div>
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<div class="">%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div>
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<div class="">I am not getting any error, if I run dos.x directly after vc-relax. However, If I run dos.x after NSCF the error appears.</div>
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<div class="">The input script for vc-relax, nscf are attached with the mail here.</div>
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<div class="">I thank you very much for your precious time and knowledge.</div>
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<div class="">Sincerely,</div>
<div class="">B S Bhushan</div>
<div class="">Ph.D Scholar,</div>
<div class="">ABV-IIITM Gwalior, India.</div>
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<span id="cid:A4E30279-FA14-46BB-8E02-CEFEABC41D9D"><graphene.in></span><span id="cid:75617D83-8A3A-4958-B99C-36D907D8EC3B"><graphene_nscf.in></span>_______________________________________________<br class="">
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