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XI_COULOMB error in a G0W0+SOC calculation

PostPosted: Mon May 09, 2016 12:57 pm
by zcqsg27
Hi,

I've encountered this error while trying to perform a GW calculation with LSORBIT turned on:

Code: Select all
internal error in VASP:  XI_COULOMB new method for calculating NQ is not correct


I've followed the VASP recipe for GW calculations more or less exactly, except with the addition of LSORBIT = .TRUE.

A pared down version of my INCAR that reproduces the error is:

Code: Select all
SYSTEM = GW density of states

start Parameters
  ICORELEVEL = 1
  NBANDS     = 352

parallelisation
  NCORE  = 12
  KPAR   = 8
 
electronic relaxation
  PREC     = Accurate
  ENMAX    = 350
  NELM     = 1
  EDIFF    = 1E-7
  LASPH    = .TRUE.
  ALGO     = GW0
  GGA      = PE
  PRECFOCK = Fast
  ENCUTGW  = 100

misc
  ISYM    = 0
  ISMEAR  = 0
  SIGMA   = 0.05
  NEDOS   = 1000
  LORBIT  = 11
  LVHAR   = .TRUE.
  LSORBIT = .TRUE.
  LOPTICS = .TRUE.


This G0W0 calculation is being run on preconverged WAVECAR and WAVEDIR files, as per the GW recipe.

What could be causing this error?

Re: XI_COULOMB error in a G0W0+SOC calculation

PostPosted: Wed Mar 29, 2017 10:13 am
by frabilloud
Hi,

I also encounter this error
internal error in VASP: XI_COULOMB new method for calculating NQ is not correct
while trying to do a GW0 calculation with VASP 5.4.1 version. I do not use LSORBIT.

Have you a solution for this problem ?

Thanks,
Franck