Warning in GW calculation

[Bramhachari Khamari]

Dear Developer,

While running GW calculation I am getting a warning which says as follows,

[WARNING] [x,Vnl] slows the Dipoles computation. To neglect it rename the ns.kb_pp file.
Does this warning effect the result. How to rectify it.

[Daniele Varsano]

Dear Bramhachari Khamari,
this warning just alerts you that the inclusion of the commutators in the dipole calculations can slow down the whole calculations of the dipole matrix elements.
It means that you are including them so the evaluation is the correct one. In this calculation, it is not affordable there is the possibility to not include them at the price of a lower accuracy which is system dependent.

Briefly, you are doing things right!

Best,
Daniele

[Bramhachari Khamari]

Dear Sir,

Thanks a lot for the clarification.

Regards,
Bramha