<div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-size:large">Dear Tran,</div><div class="gmail_default" style="font-size:large">(Wien2k_18.1 with mkl and fftw3.4 on a cluster).</div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">I am getting error with hf(+so) scf.</div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">What I followed is:<br></div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">1. PBE+SO</div><div class="gmail_default" style="font-size:large">2. save_lapw -d XXXX</div><div class="gmail_default" style="font-size:large">3. init_hf_lapw and used reduced and nonshifted mesh 3 3 2 over the original 7 7 5 mesh (detailed inputs are appended below).</div><div class="gmail_default" style="font-size:large"><span style="color:rgb(0,0,255)">Here I did not increase the default Gmax which is 6 while in my original calculation it is 8. Should I increase it?</span><br></div><div class="gmail_default" style="font-size:large">4. run_lapw -redklist -hf -p -so</div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large"><span style="color:rgb(0,0,255)">I am getting Parallel HF error</span></div><div class="gmail_default" style="font-size:large">cat *error:<br></div><div class="gmail_default" style="font-size:large">error in hf<br>error in hf<br>error in hf<br>error in hf<br>error in hf<br>error in hf<br>** Error in Parallel HF<br>** testerror: Error in Parallel HF<br></div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large"><span style="color:rgb(0,0,255)">Inputs for init_hf_lapw</span><br></div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">Do you want to use a REDUCED k-mesh for HF (saving cpu-time) (Y/n) ? <br><span style="color:rgb(0,0,255)">y</span><br>This script runs 'x kgen' twice and generates equivalent meshes in the IBZ and FBZ.<br>How many k-points in the full BZ?<br>If you type 0 you can give 3 integers for nx,ny,nz<br><span style="color:rgb(0,0,255)">0</span><br>How many in x?<br><span style="color:rgb(0,0,255)">3</span><br>How many in y?<br><span style="color:rgb(0,0,255)">3</span><br>How many in z?<br><span style="color:rgb(0,0,255)">2</span><br> NUMBER OF K-POINTS IN WHOLE CELL: (0 allows to specify 3 divisions of G)<br> length of reciprocal lattice vectors: 0.549 0.549 0.387 0.000 0.000 0.000<br> Specify 3 mesh-divisions (n1,n2,n3):<br> Shift of k-mesh allowed. Do you want to shift: (0=no, 1=shift)<br> 6 k-points generated, ndiv= 3 3 2<br>KGEN ENDS<br>0.007u 0.030s 0:00.04 75.0% 0+0k 0+240io 0pf+0w<br> 1 symmetry operations without inversion<br> NUMBER OF K-POINTS IN WHOLE CELL: (0 allows to specify 3 divisions of G)<br> length of reciprocal lattice vectors: 0.549 0.549 0.387 0.000 0.000 0.000<br> Specify 3 mesh-divisions (n1,n2,n3):<br> Shift of k-mesh allowed. Do you want to shift: (0=no, 1=shift)<br> 18 k-points generated, ndiv= 3 3 2<br>KGEN ENDS<br>0.006u 0.026s 0:00.03 66.6% 0+0k 0+56io 0pf+0w<br>Give nx,ny,nz for the reduced mesh<br>nx=?<br><span style="color:rgb(0,0,255)">3</span><br>ny=?<br><span style="color:rgb(0,0,255)">3</span><br>nz=?<br><span style="color:rgb(0,0,255)">2</span><br> NUMBER OF K-POINTS IN WHOLE CELL: (0 allows to specify 3 divisions of G)<br> length of reciprocal lattice vectors: 0.549 0.549 0.387 0.000 0.000 0.000<br> Specify 3 mesh-divisions (n1,n2,n3):<br> Shift of k-mesh allowed. Do you want to shift: (0=no, 1=shift)<br> 6 k-points generated, ndiv= 3 3 2<br>KGEN ENDS<br>0.004u 0.029s 0:00.03 66.6% 0+0k 0+40io 0pf+0w<br> 1 symmetry operations without inversion<br> NUMBER OF K-POINTS IN WHOLE CELL: (0 allows to specify 3 divisions of G)<br> length of reciprocal lattice vectors: 0.549 0.549 0.387 0.000 0.000 0.000<br> Specify 3 mesh-divisions (n1,n2,n3):<br> Shift of k-mesh allowed. Do you want to shift: (0=no, 1=shift)<br> 18 k-points generated, ndiv= 3 3 2<br>KGEN ENDS<br>0.005u 0.024s 0:00.03 66.6% 0+0k 0+56io 0pf+0w<br>Now you can use run(sp)_lapw -hf -redklist ...<br>pbe.in0_grr and pbe.inhf and hf-kmesh prepared<br>Now do the hybrid calculation: run_lapw -hf -redklist ... <br></div><div class="gmail_default" style="font-size:large"><br></div><div class="gmail_default" style="font-size:large">regards</div><div class="gmail_default" style="font-size:large">Bhamu<br></div></div><div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Aug 8, 2019, 13:40 <<a href="mailto:tran@theochem.tuwien.ac.at" target="_blank">tran@theochem.tuwien.ac.at</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">Hi,<br>
<br>
A few comments:<br>
<br>
Using the "-redklist" option is for sure a very efficient<br>
way to reduce the computational cost.<br>
<br>
For post-SCF properties (optics, DOS, thermoelectric) which require<br>
more k-points than for the normal SCF calculation, the option "-newklist"<br>
is also extremely useful: after the normal SCF calculation<br>
(and save_lapw), do just one iteration ("-newklist -i 1") with more<br>
k-points, and then calculate the property.<br>
<br>
"-redklist" and "-newklist" can be used simultaneously.<br>
<br>
"-redklist" can be used for the normal SCF and/or for the<br>
one-iteration step with more k-points.<br>
<br>
As usual, the number of k-points is a parameter that needs to<br>
be tested.<br>
<br>
Your steps for DOS, band structure and optics look ok.<br>
<br>
F. Tran<br>
<br>
On Tuesday 2019-08-06 20:27, Dr. K. C. Bhamu wrote:<br>
<br>
>Date: Tue, 6 Aug 2019 20:27:10<br>
>From: Dr. K. C. Bhamu <<a href="mailto:kcbhamu85@gmail.com" rel="noreferrer" target="_blank">kcbhamu85@gmail.com</a>><br>
>Reply-To: A Mailing list for WIEN2k users <<a href="mailto:wien@zeus.theochem.tuwien.ac.at" rel="noreferrer" target="_blank">wien@zeus.theochem.tuwien.ac.at</a>><br>
>To: A Mailing list for WIEN2k users <<a href="mailto:Wien@zeus.theochem.tuwien.ac.at" rel="noreferrer" target="_blank">Wien@zeus.theochem.tuwien.ac.at</a>><br>
>Subject: [Wien] Fwd: YS-PBE0 with -so<br>
><br>
>Dear Tran<br>
>I am performing YS-PBE0 on a scf (with -so) calculation with pbe-gga with Wien2k_18.1.<br>
>I have few queries.<br>
>A.<br>
>1. My original scf(-so) has done with 7 7 5 shifted mesh. To reduce the computational cost I am using 3 3 2 mesh for YS-PBE0 (see appendix below how I did it).<br>
>Can we do this and if so then should we call it redklist?<br>
><br>
>2.<br>
>Again with a limited HPC facilities, how safer would be for the doss, band, optic calculations if we go with the 3 3 2 mesh?<br>
>Also I want to use the same scf calculations for thermoelectric calculations without additional scf.<br>
><br>
>3. Could you please correct me if I am doing any mistake in the below steps?<br>
><br>
>I am curious to know in particular: in normal dft+so calculations we do a additional step as "lapwso" in between lapw1 and lapw2 -so.<br>
>Is it okay here if we avoid both the steps i.e. lapw1 -so and lapwso for YS-PBE0+SO?<br>
><br>
>Steps:<br>
>x_lapw lapw2 -qtl -hf -so -p<br>
>x_lapw tetra -hf -so<br>
><br>
>run_bandplothf_lapw -p -qtl -redklist<br>
>x_lapw spaghetti -hf -p -so<br>
><br>
>x_lapw optic -hf -p -so<br>
>x_lapw joint -hf -p -so<br>
>x_lapw kram -p -so<br>
><br>
>Appendix:<br>
><br>
>$run_kgenhf_lapw<br>
><br>
>If you type 0 you can give 3 integers for nx,ny,nz<br>
>0<br>
>How many in x?<br>
>3<br>
>How many in y?<br>
>3<br>
>How many in z?<br>
>2<br>
>Do you want to shift? (0=no, 1=shift)<br>
>0<br>
> NUMBER OF K-POINTS IN WHOLE CELL: (0 allows to specify 3 divisions of G)<br>
> length of reciprocal lattice vectors: 0.549 0.549 0.387 0.000 0.000 0.000<br>
> Specify 3 mesh-divisions (n1,n2,n3):<br>
> Shift of k-mesh allowed. Do you want to shift: (0=no, 1=shift)<br>
> 6 k-points generated, ndiv= 3 3 2<br>
>KGEN ENDS<br>
>0.007u 0.038s 0:00.05 60.0% 0+0k 0+240io 0pf+0w<br>
> 1 symmetry operations without inversion<br>
> NUMBER OF K-POINTS IN WHOLE CELL: (0 allows to specify 3 divisions of G)<br>
> length of reciprocal lattice vectors: 0.549 0.549 0.387 0.000 0.000 0.000<br>
> Specify 3 mesh-divisions (n1,n2,n3):<br>
> Shift of k-mesh allowed. Do you want to shift: (0=no, 1=shift)<br>
> 18 k-points generated, ndiv= 3 3 2<br>
>KGEN ENDS<br>
>0.001u 0.036s 0:00.04 75.0% 0+0k 0+56io 0pf+0w<br>
><br>
><br>
>regards<br>
>Bhamu<br>
><br>
><br>
><br>
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