Convergence problem in HSE06 calculation

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magnon963
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Convergence problem in HSE06 calculation

#1 Post by magnon963 » Tue Apr 22, 2014 7:15 am

Dear Admin and VASP users,

I am calculating DOS using HSE06 for a 48 atom layered system. Calculations with PBE-PAW converges within 200 steps. But when I switch on HSE, it seems that the convergence (if it can achieve) is very very slow. It would be great help for me if someone can suggest some solution of this problem.

INCAR file:

Start parameter for this run:
ISTART = 1 job : 0-new 1-cont 2-samecut
ICHARG = 2 charge : 1-file 2-atom 10-const

Electronic Relaxation 1

ENCUT = 350 eV
NELM = 220
NELMIN = 0
NELMDL = -5 # of ELM STEP m
EDIFF = 1E-05 stopping cretiria for ELM

IMIX =1
AMIX = 0.2
BMIX = 0.0001
AMIX_MAG= 0.8
BMIX_MAG= 0.0001
LORBIT = 11

LPLANE = .T
NPAR = 128
NSIM = 1

Ionic Relaxation
NSW = 1
EDIFFG = -1.E-02 stopping-criterion for IOM
ISIF = 3
ISYM = -1
ISPIN = 2
MAGMOM = 48*1.2
IBRION = -1
LCORR = .TRUE.
POTIM = 0.4
VOSKOWN = 1
LVDW = .TRUE.

DOS related values:

SIGMA = 0.01
ISMEAR = 0 broad. in eV, -4-tet -1-fermi 0 gaus
LREAL = AUTO
LWAVE = .T.

LHFCALC = .TRUE.
HFSCREEN = 0.20
ALGO = DAMPED
TIME = 0.4
PRECFOCK= N

for KPOINTS:
Automatic mesh
0
Monkhosrst Pack
3 3 1
0. 0. 0.

==========================================

OSZICAR file :
N E dE d eps ncg rms ort
DAV: 1 -0.291190562857E+08 -0.29119E+08 -0.20305E+08 2304 0.471E+01
DAV: 2 -0.303359882865E+08 -0.12169E+07 -0.12164E+07 2304 0.146E+05
DAV: 3 -0.303868686953E+08 -0.50880E+05 -0.50856E+05 2304 0.215E+04
DAV: 4 -0.303902617145E+08 -0.33930E+04 -0.33850E+04 2304 0.423E+03
DAV: 5 -0.303906405251E+08 -0.37881E+03 -0.37812E+03 2304 0.800E+02
SDA: 6 0.137024632915E+06 0.30528E+08 -0.25168E+05 2304 0.629E+05 0.000E+00
DMP: 7 0.111059987605E+06 -0.25965E+05 -0.43452E+05 2304 0.919E+05 0.437E+05
DMP: 8 0.732075899616E+05 -0.37852E+05 -0.36828E+06 2304 0.899E+06 0.563E+05
DMP: 9 0.658799821656E+05 -0.73276E+04 -0.34039E+06 2304 0.844E+06 0.189E+05
DMP: 10 0.489747057716E+05 -0.16905E+05 -0.22680E+06 2304 0.553E+06 0.374E+05
DMP: 11 0.697774107543E+05 0.20803E+05 -0.24532E+06 2304 0.594E+06 0.514E+05
DMP: 12 0.671408439453E+05 -0.26366E+04 -0.23517E+06 2304 0.585E+06 0.668E+04
DMP: 13 0.590968744415E+05 -0.80440E+04 -0.22190E+06 2304 0.547E+06 0.209E+05
DMP: 14 0.555769272786E+05 -0.35199E+04 -0.14135E+06 2304 0.342E+06 0.297E+05
DMP: 15 0.601413754848E+05 0.45644E+04 -0.14713E+06 2304 0.366E+06 0.382E+04
DMP: 16 0.553971148114E+05 -0.47443E+04 -0.13766E+06 2304 0.340E+06 0.116E+05
DMP: 17 0.354457717550E+05 -0.19951E+05 -0.87128E+05 2304 0.198E+06 0.507E+05
DMP: 18 0.390308489701E+05 0.35851E+04 -0.70978E+05 2304 0.176E+06 0.326E+04
====================================================

best regards,
PS
Last edited by magnon963 on Tue Apr 22, 2014 7:15 am, edited 1 time in total.

support_vasp
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Re: Convergence problem in HSE06 calculation

#2 Post by support_vasp » Wed Sep 04, 2024 12:49 pm

Hi,

We're sorry that we didn’t answer your question. This does not live up to the quality of support that we aim to provide. The team has since expanded. If we can still help with your problem, please ask again in a new post, linking to this one, and we will answer as quickly as possible.

Best wishes,

VASP


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