error

Concerns issues with computing quasiparticle corrections to the DFT eigenvalues - i.e., the self-energy within the GW approximation (-g n), or considering the Hartree-Fock exchange only (-x)

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samaneh
Posts: 165
Joined: Tue Jan 21, 2014 9:03 am

error

Post by samaneh » Sat Nov 29, 2014 2:33 pm

Dear Developers,
Would you please tell me about this problem and how can I fix it?
[ERROR] STOP signal received while in :[02.05] Energies [ev] & Occupations

[ERROR] Too few states. Include more states in the DFT run.
I attached the report file
Best
S. Ataei, University of Tehran, Iran
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S. Ataei, PhD student at University of Tehran, Iran.

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Daniele Varsano
Posts: 4198
Joined: Tue Mar 17, 2009 2:23 pm
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Re: error

Post by Daniele Varsano » Sat Nov 29, 2014 9:32 pm

Dear Samaneh,
as the error messages say you need to Include more states in the DFT run.
It looks yambo has difficulties to determine the Fermi energy considering the number of bands you calculated and the temperature (semearing) you used (~0.3eV).
Otherwise you can think about to reduce the smearing if not needed (is this a metal??).
Anyway I suggest you to do both, as 200 bands considering that 180 are occupied is a small number to get converged reponse funcitons/screening etc...
Best,
Daniele
Dr. Daniele Varsano
S3-CNR Institute of Nanoscience and MaX Center, Italy
MaX - Materials design at the Exascale
http://www.nano.cnr.it
http://www.max-centre.eu/

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