GW level

[Daniele Varsano]

Dear Davood,
instead of correcting all the entire BZ, in order to make convergences I would focus on an high symmetry point (e.g. gamma) an few bands around Fermi:
%QPkrange # [GW] QP generalized Kpoint/Band indices
1| 1| 8|11|
%
and check the behaviour of the convergences ( NGsBlkXp, BndsRnXp, GbndRnge). Also for the exchange part: EXXRLvcs which seems me a quite low value with respect the total number of Gs of your system. In the case of NGsBlkXp I would plot the QP values of these few bands with respect the NGsBlkXp, or the QP gap if you are interested in gap (it converges before than single qp values).
This will save you a lot of cpu time.
Once you have reasonable convergence value you can calculate the entire corrected band structure.

Best,
Daniele

[davood]

Dear Daniele
Thank you for your response.
I have another question.
Is the value of FFTGvecs equal EXXRLvcs?
Bset

[Daniele Varsano]

Dear Davood,
you can control them separately, anyway if you do not have memory problem it is safe to keep FFTGvecs to the default value (charge cutoff in you report 267051),
and check the convergence of EXXRLvcs that may need a lot of G vectors, but this is calculated in quite quickly.

Best,
Daniele