<div dir="ltr"><div>I have already done that and cannot reproduce your problem, neither in serial nor in parallel execution (at least with no linear-algebra parallelization, option "-nd 1"). If you are using an unmodified version of QE, and if you are not running in some extravagant way, there is something wrong with your compiler, libraries, run-time environment, don't know what, but there is no division by zero in QE.</div><div><br></div><div>Paolo<br></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 4:53 PM Fariba Islam <<a href="mailto:ezqhaz@gmail.com" target="_blank">ezqhaz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Dear Paolo,</div><div>Here I am attaching my files that gave me the errors. Would you kindly see what the problem is?</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 8:28 PM Paolo Giannozzi <<a href="mailto:p.giannozzi@gmail.com" target="_blank">p.giannozzi@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>I cannot reproduce your problem. I get some IEEE_UNDERFLOW_FLAG but that's all.</div><div><br></div><div>Paolo<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 2:13 PM Fariba Islam <<a href="mailto:ezqhaz@gmail.com" target="_blank">ezqhaz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I am using qe-6.5 and downloaded
<a href="http://www.quantum-simulation.org/potentials/sg15_oncv/sg15_oncv_upf_2020-02-06.tar.gz" style="font-family:Geneva,Arial,Helvetica,sans-serif;font-size:medium" target="_blank">sg15_oncv_upf_2020-02-06.tar.gz</a> from
<a href="http://www.quantum-simulation.org/potentials/sg15_oncv/" target="_blank">http://www.quantum-simulation.org/potentials/sg15_oncv/</a> and used silicon's PP. I tried all the PPs available in the folder.<div><br></div><div>Regards</div><div><br><div> <br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 5:54 PM Paolo Giannozzi <<a href="mailto:p.giannozzi@gmail.com" target="_blank">p.giannozzi@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Which pseudopotential and QE version are you ising?<br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 21, 2020 at 1:48 PM Fariba Islam <<a href="mailto:ezqhaz@gmail.com" target="_blank">ezqhaz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">For the following scf file if I use NC pseudopotential I get-<div>Note: The following floating-point exceptions are signalling: IEEE_DIVIDE_BY_ZERO<br></div><div>However, when I use USPP I don't get the error. Why is this happening?</div><div>code-</div><div>&control<br> calculation = 'scf'<br> restart_mode='from_scratch'<br> prefix = 'si_b'<br> outdir='./tmp/'<br> pseudo_dir='../pseudo/'<br>/<br>&system<br> ibrav=2, celldm(1) =10.410909236, <br> nat=2, ntyp=1,<br> ecutwfc=40<br> ecutrho=160<br> nbnd=8<br> noinv=.true.<br> nosym=.true.<br> ! occupations='smearing', smearing='gaussian',degauss=0.005<br>/<br>&electrons<br> conv_thr=1e-8<br>/<br>ATOMIC_SPECIES<br> Si 28.0855 Si.upf<br><br>ATOMIC_POSITIONS (alat)<br> Si 0.00 0.00 0.00<br> Si 0.25 0.25 0.25<br>K_POINTS {automatic}<br>12 12 12 0 0 0<br></div><div><br></div></div>
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