what is problem ? i would like to calculate GW for ZnO

GW, Bethe-Salpeter …

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cengiz
Posts: 22
Joined: Tue Sep 25, 2012 3:36 pm

what is problem ? i would like to calculate GW for ZnO

Post by cengiz » Mon Feb 18, 2013 3:56 pm

i woulde like to calculate GW for ZnO but i give error messagge

*********************************************
setup_sigma.F90:598:ERROR
k-point -0.125 0.000 0.000 not in the set of kbz
***********************************************
it is writen in log file but i cant log file because it is too big for upload

what is the problem ?

this is my .in file

ZnO.in
my .in file
(4.04 KiB) Downloaded 390 times

gabriel.antonius
Posts: 58
Joined: Mon May 03, 2010 10:34 pm

Re: what is problem ? i would like to calculate GW for ZnO

Post by gabriel.antonius » Mon Feb 18, 2013 11:51 pm

You should define a k-point grid that contains the kpt at which you need the GW corrections.
Look at the input variables kptopt and ngkpt.
Gabriel Antonius
Université du Québec à Trois-Rivières

cengiz
Posts: 22
Joined: Tue Sep 25, 2012 3:36 pm

Re: what is problem ? i would like to calculate GW for ZnO

Post by cengiz » Wed Feb 20, 2013 3:07 pm

thank you for help but now i give a message like this


m_bz_mesh.F90:2192:ERROR
Not able to found umklapp G0 vector such as k1-k2 = kf+G0
point1 = 5 -1.25000000E-01 3.75000000E-01 0.00000000E+00
point2 = 3 -3.75000000E-01 -1.25000000E-01 0.00000000E+00

gabriel.antonius
Posts: 58
Joined: Mon May 03, 2010 10:34 pm

Re: what is problem ? i would like to calculate GW for ZnO

Post by gabriel.antonius » Wed Feb 20, 2013 8:33 pm

That's because the values of ecutwfn, ecutsigx and ecuteps were set to exceedingly small values for this example file. Same goes for nband...
Gabriel Antonius
Université du Québec à Trois-Rivières

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