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bse claculation

Posted: Sat Jan 23, 2016 12:55 pm
by samaneh
Dear Developers,
I run bse calculation with this error:
[ERROR] STOP signal received while in :[08.01] Main loop
[ERROR] Error in parallel wf distribution
should I reduce the tansfered momenta to 1 (like rpa calculations)
QpntsRXs
1 | 39 | # [Xs] Transferred momenta
or for bse calculations we need all these momenta?
I use wf_collect=true for both scf and nscf calculations
do you think that the error is because of that?!

Re: bse claculation

Posted: Sat Jan 23, 2016 1:57 pm
by Daniele Varsano
Dear Samanaeh,
you need the screening matrix for all the q vectors. I inveite you to have a look to the equation entering in the BSE kernel, see the W expression [url:http://www.yambo-code.org/theory/docs/doc_BSK.php]here[/url]
As usual, please post input/report/output/job submission script otherwise it is not possible to look at the problem.
Best,
Daniele

Re: bse claculation

Posted: Sat Jan 23, 2016 2:48 pm
by samaneh
Dear Daniele,
Thank you.
Is that possible to calculate the XAS spectrum using yambo+bse?
Best rgards

Re: bse claculation

Posted: Mon Jan 25, 2016 10:23 am
by Daniele Varsano
Dear Samaneh,
Yambo works with pseudopotential, only valence electrons are treated, so XAS it is not accessible.
Best,
Daniele