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WARNING: Sub-Space-Matrix is not hermitian in DAV in VASP 5.2

Posted: Mon Jun 18, 2012 3:36 pm
by SchrodingersCat
I recently upgraded to VASP 5.2 from 4.6. I was retrying my bulk Magnetite (Fe3O4) calculation to see how different the energies were when I found the message: WARNING: Sub-Space-Matrix is not hermitian in DAV. What is strange is that I did not see this message when running the same calculation in VASP 4.6.

Was this warning added in VASP 5.2? Also, I have a suspicion that this may have something to do with the installation, specifically LAPACK/SCALAPACK.

Has anyone else had this experience?

INCAR:

Code: Select all

SYSTEM?=?magnetite?FIM?corrected?magnetization

ISTART?=?0
ICHARG?=?2

PREC?=?ACCURATE
ENCUT?=?500.00?#>default*1.3?for?minimization

ISMEAR?=?0?????!?Gauss?smearing
SIGMA?=?0.1

IBRION?=?2
ISIF?=?3
NSW?=?200
EDIFFG?=?0.02

POTIM?=?0.2???????!setp-size?for?quasi-newton?search
LREAL?=?AUTO?

ALGO?=?FAST
NELM?=?200
NELMIN?=?4????????!?increase?it?when?doing?relaxation
EDIFF?=?1.0E-5

ISPIN?=?2???????!?for?magnetic?calculation
LMAXMIX?=?6
MAGMOM?=?8*5.0?16*-4.0??32*0.0

AMIX?=?0.2
BMIX?=?0.0001
AMIX_MAG?=?0.8
BMIX_MAG?=?0.0001

LDAU?=?.TRUE.
LDAUTYPE?=?2
LDAUL?=?2?-1
LDAUU?=?5.0??0.0
LDAUJ?=?1.0??0.0
LASHPH?=?.TRUE.

LWAVE?=?.FALSE.?!prevents?the?writing?of?wavecar
LCHARG?=?.TRUE.?!write?chgcar
LORBIT?=?11

LPLANE?=?.TRUE.

ADDGRID?=?.TRUE.

Re: WARNING: Sub-Space-Matrix is not hermitian in DAV in VASP 5.2

Posted: Thu Sep 12, 2024 7:28 am
by support_vasp

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