<div><div dir="auto" style="font-size:1rem;word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)">hi</div><div dir="auto" style="word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)"><br></div><div dir="auto" style="font-size:1rem;word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)">is there a specific reason for enforcing this specific PP?</div><div dir="auto" style="word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)"><br></div><div dir="auto" style="font-size:1rem;word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)">check the SSSP PP; with their recommended cutoffs as a starting point then maybe you can restart the same calculation with your preffered PP</div><div dir="auto" style="word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)"><br></div><div dir="auto" style="font-size:1rem;word-spacing:1px;border-color:rgb(49,49,49);color:rgb(49,49,49)">how is the vacuum around your molecule?</div><br class="Apple-interchange-newline" style="color:rgb(0,0,0)"></div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 27 Apr 2021 at 23:50, Karim Elgammal <<a href="mailto:egkarim@gmail.com">egkarim@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div dir="auto">hi</div><div dir="auto"><br></div><div dir="auto">is there a specific reason for enforcing this specific PP?</div><div dir="auto"><br></div><div dir="auto">check the SSSP PP; with their recommended cutoffs as a starting point then maybe you can restart the same calculation with your preffered PP</div><div dir="auto"><br></div><div dir="auto">how is the vacuum around your molecule?</div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 26 Apr 2021 at 06:44, Raj <<a href="mailto:rajmaddipati95@gmail.com" target="_blank">rajmaddipati95@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)"><div lang="EN-IN" style="word-wrap:break-word"><div><p class="MsoNormal">Dear all,</p><p class="MsoNormal">I am performing scf calculation of isolated oxygen atom using SCAN pseudo-potential with gamma points. The calculation stuck in the first iteration and doesn’t progress ahead. I have tried with different smearing but still it stuck at the same point. I have tried with occupations=’fixed’ for which the total energy is fluctuating with random numbers and not converging. I have tried increasing ecutwfc and decreasing convergence threshold, but no change. Some lines of output file as shown below .</p><p class="MsoNormal">Thanks in advance.</p><p class="MsoNormal">Regards</p><p class="MsoNormal">Raj</p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><i><span style="color:red">IMPORTANT: XC functional enforced from input : Exchange-correlation= MGGA_X_SCAN MGGA_C_SCAN ( 0 0 0 0 0 263 267)<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red">.<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red">.<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red">.<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red">number of k points= 1 Fermi-Dirac smearing, width (Ry)= 0.0147<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> cart. coord. in units 2pi/alat<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> k( 1) = ( 0.0000000 0.0000000 0.0000000), wk = 2.0000000<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> Dense grid: 1184463 G-vectors FFT dimensions: ( 180, 180, 180)<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> Estimated max dynamical RAM per process > 779.14 MB<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> Estimated total dynamical RAM > 1.52 GB<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> Initial potential from superposition of free atoms<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> starting charge 6.00000, renormalised to 6.00000<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> negative rho (up,down): 5.796E-03 0.000E+00<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> Starting wfcs are 4 randomized atomic wfcs + 3 random wfcs<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> total cpu time spent up to now is 5.2 secs<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> Self-consistent Calculation<u></u><u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"><u></u> <u></u></span></i></p><p class="MsoNormal"><i><span style="color:red"> iteration # 1 ecut= 75.00 Ry beta= 0.70<u></u><u></u></span></i></p><p class="MsoNormal"><span style="color:white"><u></u> <u></u></span></p><p class="MsoNormal"><u></u> <u></u></p></div></div>_______________________________________________<br>
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<a href="https://lists.quantum-espresso.org/mailman/listinfo/users" rel="noreferrer" target="_blank">https://lists.quantum-espresso.org/mailman/listinfo/users</a></blockquote></div></div>-- <br><div dir="ltr" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr">Thank you and Best Regards;</div><div dir="ltr">Yours;<br><b>Karim Elgammal</b><div><div><br></div></div></div></div></div></div>
</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr">Thank you and Best Regards;</div><div dir="ltr">Yours;<br><b>Karim Elgammal</b><div></div></div><div><b><br></b></div></div></div>