[Wien] LAPWDM crashing on SOC calculation

Peter Blaha pblaha at theochem.tuwien.ac.at
Fri May 10 16:23:07 CEST 2019


> I run initso_lapw for both directions on saved scf job by choosing "I 
> have SP case" (run symmetso). Should I then use new structure for SO 
> calculations?

Yes of course. Please check previous posts on magnetocrystalline anisotropy.


> Also, how do I convert total energy with other results (eg. my system 
> gives -85014 Ry which is over -1MeV, it had around -160eV on vasp)

VASP is a pseudopotential method and the energies are not comparable. 
Anyway, the absolute value of a total energy is meaningless (change PBE 
to LDA), only energy differences are important.

> 
> 
> 
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> 05/10/19, 10:02:28 PM 	
> 
> 
> On Fri, May 10, 2019 at 2:22 PM Peter Blaha 
> <pblaha at theochem.tuwien.ac.at <mailto:pblaha at theochem.tuwien.ac.at>> wrote:
> 
>     Most likely, for M=(11-2) the symmetry is not correct anymore.
> 
>     Did you run  initso (and symmetso) again for the new direction ?
> 
>     Or, better, do all directions with a "common" lower symmetry.
> 
>     PS: Otherwise, check erroro and outputdm* files for error messages.
> 
>     Am 10.05.2019 um 04:03 schrieb Tuvshin D:
>      > Hello experts, i've been calculating MAE (Magnetic Anisotropy
>     Energy)
>      > with energy difference of [111] and [11-2] direction with SOC
>      > calculation. Without U+ effect the MAE is found nicely, but with
>      > inclusion of -orb tag the [111] direction is running normally but
>     [11-2]
>      > direction is constantly crashing in LAPWDM. Last line of .dayfile
>     follows:
>      >
>      >  >   lapwdm -up -p -c -so        (10:34:32) running LAPWDM in
>     parallel mode
>      > **  LAPWDM crashed!
>      > error: command   /home/tuvshin/WIEN2k/lapwdmcpara -up -c -so
>      > uplapwdm.def   failed
>      >
>      >  >   stop error
>      >
>      > Every input file (expect magnetization direction) is same between
>     [111]
>      > which finishes normally and [11-2] which constantly crashing. Any
>     tips
>      > on how to make it running?
>      >
>      >
>      >
>      >
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>      > 05/10/19, 11:01:38 AM
>      >
>      >
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>     -- 
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>     Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
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                                       P.Blaha
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Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
Phone: +43-1-58801-165300             FAX: +43-1-58801-165982
Email: blaha at theochem.tuwien.ac.at    WIEN2k: http://www.wien2k.at
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