reproduce MoS2 subsampling in BGW examples

171 views
Skip to first unread message

dou bei

unread,
Oct 31, 2021, 10:51:39 AM10/31/21
to BerkeleyGW Help
Dear BGW developers,

i am trying to reproduce the result of MoS2 subsampling in BGW examples.
when i did sigma calculation in 12-sigma, i got below error message:


-----------------------------------------------------

WARNING: checkbz: unfolded BZ from epsmat has missing q-points

See file checkbz.log for more information.


WARNING: |Eqp0 - Eo| > finite_difference_spacing. Linear extrapolation for eqp1

may be inaccurate. You should test the validity of eqp1 by rerunning the

calculation with the self energy evaluated at the eqp0 energies. For that,

use the eqp_outer.dat file, created with eqp.py script and point WFN_outer to

WFN_inner, if you were not already using WFN_outer.

-----------------------------------------------------

the checkbz.log is:

 Output from checkbz on 28-Oct-2021 at 17:20:19 -0500:

Missing point:     0.000000    0.000000    0.000000

---------------------------------------------------------------------------------------------------------------------------------------------------------------

i used the original input files and didn't change the kpoints in the sigma.inp file.
the sigma.inp is:
---------------------------------------------------------------------------------------------------------------------------------------------------------------

# sigma.inp

screened_coulomb_cutoff  20.0

number_bands            500

band_index_min   13

band_index_max   34

screening_semiconductor

degeneracy_check_override

dont_use_vxcdat

cell_slab_truncation

exact_static_ch 1

subsample

begin kpoints

  0.000000000  0.000000000  0.000000000   1.0 

  0.000000000  0.083333333  0.000000000   1.0 

  0.000000000  0.166666667  0.000000000   1.0 

  0.000000000  0.250000000  0.000000000   1.0 

  0.000000000  0.333333333  0.000000000   1.0 

  0.000000000  0.416666667  0.000000000   1.0 

  0.000000000  0.500000000  0.000000000   1.0 

  0.000000000  0.583333333  0.000000000   1.0 

  0.000000000  0.666666667  0.000000000   1.0 

  0.000000000  0.750000000  0.000000000   1.0 

  0.000000000  0.833333333  0.000000000   1.0 

  0.000000000  0.916666667  0.000000000   1.0 

  0.083333333  0.083333333  0.000000000   1.0 

  0.083333333  0.166666667  0.000000000   1.0 

  0.083333333  0.250000000  0.000000000   1.0 

  0.083333333  0.333333333  0.000000000   1.0 

  0.083333333  0.416666667  0.000000000   1.0 

  0.083333333  0.500000000  0.000000000   1.0 

  0.083333333  0.583333333  0.000000000   1.0 

  0.083333333  0.666666667  0.000000000   1.0 

  0.083333333  0.750000000  0.000000000   1.0 

  0.166666667  0.166666667  0.000000000   1.0 

  0.166666667  0.250000000  0.000000000   1.0 

  0.166666667  0.333333333  0.000000000   1.0 

  0.166666667  0.416666667  0.000000000   1.0 

  0.166666667  0.500000000  0.000000000   1.0 

  0.166666667  0.583333333  0.000000000   1.0 

  0.250000000  0.250000000  0.000000000   1.0 

  0.250000000  0.333333333  0.000000000   1.0 

  0.250000000  0.416666667  0.000000000   1.0 

  0.333333333  0.333333333  0.000000000   1.0 

end

------------------------------------------------------------------------------------------------------------------------------

although there is a warning from BGW, i got the eqp1.dat file, where the energy within is close to the same file provided in reference directory.

Could you please help to figure out the cause of this warning?

Thanks,
beidou
Reply all
Reply to author
Forward
0 new messages