Page 1 of 1

"NBANDS = number of occupied bands" in HF-type calculations?

Posted: Mon Aug 03, 2009 2:51 am
by ctcp-nz
Hi,

in the online version of the manual I found the statement that NBANDS to be set as "number of occupied bands" for HF-type calculations (http://cms.mpi.univie.ac.at/vasp/vasp/node172.html).
Is there any (physical or technical) reason behind this statement or am I missing a point here?
Should not the inclusion of empty bands speed up the convergence of the electronic iterations (as for all other calculations)?
Additionally, some test calculations revealed that the convergence is (as expected) pretty bad with this setting.

Thanks for suggestions
Ralf.

Re: "NBANDS = number of occupied bands" in HF-type calculations?

Posted: Wed Sep 11, 2024 2:31 pm
by support_vasp

Hi,

We're sorry that we didn’t answer your question. This does not live up to the quality of support that we aim to provide. The team has since expanded. If we can still help with your problem, please ask again in a new post, linking to this one, and we will answer as quickly as possible.

Best wishes,

VASP