Hi, Your cell parameters are too small, which would result of a hydrogen solid not a single hydrogen atom.<br><br>Regards<br><br><div class="gmail_quote">On Sun, Dec 20, 2009 at 3:27 AM, Dimpy Sharma <span dir="ltr"><<a href="mailto:dimpy.sharma@tyndall.ie">dimpy.sharma@tyndall.ie</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
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<br>
<p><font size="2">Hi there,<br>
<br>
I have tried to calculate the eigen energy of an isolated Hydrogen atom using quantum espresso, however in the output file it is showing me 'charge is wrong'. I guess my input file is correct. I used 1 node to run the calculation.<br>
<br>
My input file is as given below!<br>
&CONTROL<br>
calculation ='scf'<br>
restart_mode = 'from_scratch'<br>
outdir = '/'<br>
pseudo_dir = '/'<br>
prefix = 'H'<br>
tstress = .true.<br>
tprnfor = .true.<br>
wf_collect =.true.<br>
/<br>
&SYSTEM<br>
ibrav = 0<br>
celldm(1) = 1<br>
nat = 1<br>
ntyp = 1<br>
ecutwfc = 40<br>
ecutrho = 160.0<br>
nbnd = 2<br>
<br>
/<br>
&ELECTRONS<br>
diagonalization ='cg'<br>
mixing_mode = 'plain'<br>
conv_thr = 1.0d-6<br>
mixing_beta = 0.7<br>
/<br>
&IONS<br>
/<br>
&CELL<br>
cell_dynamics='none'<br>
/<br>
CELL_PARAMETERS cubic<br>
1.000000000 0.000000000 0.000000000<br>
0.000000000 2.000000000 0.000000000<br>
0.000000000 0.000000000 2.000000000<br>
ATOMIC_SPECIES<br>
H 1.00794 H.pz-vbc.UPF<br>
ATOMIC_POSITIONS angstroms<br>
H 0.0000 0.0000 0.0000<br>
K_POINTS automatic<br>
1 1 1 0 0 0<br>
<br>
suggestions welcome!<br>
<br>
<br>
Thanks and regards<br>
<br>
Dimpy<br>
<br>
UCC<br>
Ireland<br>
<br>
</font>
</p>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Hai-Ping Lan <br>Department of Electronics ,<br>Peking University , Bejing, 100871<br><a href="mailto:lanhaiping@gmail.com">lanhaiping@gmail.com</a>, <a href="mailto:hplan@pku.edu.cn">hplan@pku.edu.cn</a><br>