<p dir="ltr">Dear Banerjee,</p>
<p dir="ltr">Have you tried reducing ecutwfc ? <br>
It is too big !!! </p>
<p dir="ltr">If you are interested only in DOS, you can use smaller cutoff even if you are using NC pseudopotentials.</p>
<p dir="ltr">First set it to 15-20 Ry and try to finish an HSE run. Then you can increase it gradually.</p>
<div class="gmail_quote">On Apr 30, 2014 11:13 PM, "Rajdeep Banerjee" <<a href="mailto:rajdeep.jzs@gmail.com">rajdeep.jzs@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>Dear all, <br></div> I've posted this question before but got no reply. But I'm in desperate need of solving this issue. So I'm posting it again. It'd be of great help if anyone has any suggestion:<br>
<div><div><br> I'm trying to do a hybrid calculation of a monolayer of graphene-like
material for the sake of calculating band gap. The following are the
details (important part of the code is geven below):<br>
<br>&system<br> ibrav = 4,<br> celldm(1) = 7.5284, celldm(3) = 5.020259255 ,<br> nat = 10, ntyp = 3,<br> ecutwfc = 120, <br> london = .true.,<br> input_dft = 'hse',<br> nbnd = 25,<br> exxdiv_treatment = 'gygi-baldereschi',<br>
x_gamma_extrapolation = .true., <br> nqx1 = $nq, nqx2 = $nq, nqx3 = 1<br>/<br>...<br>/<br>K_POINTS automatic<br> 12 12 1 0 0 0<br><br><br>
I understand that nqx1 = 2, nqx2 =2, nqx3 = 1 or
nqx1 = 4, nqx2 =4, nqx3 = 1 (or 6x6x1 or 12x12x1) should not cause any
problem as my nk is 12x12x1.<br>
But the program stopped after the completion of
self consistent calculation (before starting hybrid exchange-correlation
calculation) even with the above set of q-points saying:<div><br>
<br><br>==============================<div dir="ltr">=======================================================<br>= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES<br>= EXIT CODE: 9<br>= CLEANING UP REMAINING PROCESSES<br>
= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES<br>
=====================================================================================<br>APPLICATION TERMINATED WITH THE EXIT STRING: Killed (signal 9)<br><br><br></div></div><div dir="ltr"> I have tried running it in:<br>
</div><div>1. espresso-4.3.2 and in espresso-5.0.1<br></div><div>2. in 4 , 6 and 32 processors<br></div><div>3. with different hybrid functional:<br> input_dft = 'pbe0',<br> exxdiv_treatment = 'vcut_ws',<br>
ecutvcut = 1.0,<br> <br><br></div>
The problem doesn't occur only if I use nq: 1x1x1.<br><br></div><div> Any help is highly appreciated.<br><div><br>Rajdeep Banerjee<br></div><div><div>Ph. D. student<br></div><div>
Theoretical Sciences Unit<br></div><div>Jawaharlal Nehru Centre for Advanced Scientific Research<br></div> Bangalore, India </div><br><br></div></div></div>
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