[Wien] mbj scf error

Peter Blaha pblaha at theochem.tuwien.ac.at
Tue Feb 26 12:17:01 CET 2013


As I said:
First you have to   "restore_lapw" the PBE calculation and run at least 
ONE cycle using PBE.

Then switch to mBJ and do one cycle (-i 1). Do you get NaNs ? does it 
run through ? What is :DIS in case.scf ?

It could be that due to the vaccum region, grad rho/rho is unphysical, 
then do a bulk graphite calculation and use the case.grr file from there 
(removing case.in0_grr).

....

> there is in the grapphane.output0  NaNs. why? what should I do?
> summary of graphane.output0:
>   XC-potentials inside spheres (XCPOT1)
>   Gauss-Legendre grid of           14 x          27
>     INDEX      V-XC       FIT     DIFFERENCE
>         1       NaN       NaN            NaN
>         2       NaN NaN            NaN
>         4       NaN       NaN            NaN
>        ...
>       378       NaN       NaN            NaN
> ATOM   1  AT RMT: SIGMA OF V-XC FIT:                            NaN
> ATOM   1  LARGEST SIGMA AT R(  2)= 0.000 and MAX DIFF:  0.00000E+00
> 0.00000E+00
>   Gauss-Legendre grid of           14 x          27
>     INDEX      V-XC       FIT     DIFFERENCE
>         1       NaN       NaN            NaN
>         2       NaN       NaN            NaN
>         ....
>       378       NaN       NaN            NaN
> ATOM   2  AT RMT: SIGMA OF V-XC FIT:                            NaN
> ATOM   2  LARGEST SIGMA AT R(  2)= 0.000 and MAX DIFF:  0.00000E+00
> 0.00000E+00
>
>   SELECTED FOURIERCOEFF. OF V-XC
>    0  0  0            NaN    0.00000E+00                 NaN    0.00000E+00
>    0  0 1            NaN            NaN                 NaN            NaN
>    0  0  2            NaN            NaN                 NaN            NaN
>    ....
>    0 0191            NaN            NaN                 NaN            NaN
>    v-mean, v0,u0 (NaN,NaN) (NaN,NaN)
> (552.845591947925,0.000000000000000E+000)
>   (NaN,0.000000000000000E+000)
> 1
>                                ------------------------------
>                                   T O T A L   E N E R G Y
>   1. DENSITY-POTENTIAL INTEGRALS     (H)
>        SPHERE=  1  C
>             L= 0   :          NaN     SPHERE CHARGE
>             ....
>              L= 6   :          NaN     SPHERE CHARGE
>              TOTAL=            NaN
>         SPHERE= 2  C
>
>              L= 0   :          NaN     SPHERE CHARGE
>          .   ...
>              L= 6   :          NaN     SPHERE CHARGE
>              TOTAL=            NaN
>           SPHERE=  3  H
>
>              L= 0   :          NaN     SPHERE CHARGE
>              L= 1 :          NaN     SPHERE CHARGE
>              ...
>              L= 6 :          NaN     SPHERE CHARGE
>              TOTAL=            NaN
>          SPHERE=  4  H
>             L= 0   :          NaN     SPHERE CHARGE
>              L= 1   :          NaN     SPHERE CHARGE
>              ...
>              L= 6   :          NaN     SPHERE CHARGE
>              TOTAL=            NaN
>           PLANE WAVE CONTRIBUTION
>
>              TOTAL=            NaN
> 2. CONSTANT TERMS     (H)
>          SPHERE  1   C           =    -8.212096
>           SPHERE  2   H           =    -0.451525
>
> --------------------------------------------------------------------------------
>
>     TOTAL VALUE =           NaN     (H)
> :DEN  : DENSITY INTEGRAL  = NaN   (Ry)
>         ELS_POTENTIAL_AT Z=0 and Z=0.5:   0.17793  -1.77017
>         ELS_POTENTIAL_AT Y=0 and Y=0.5:   0.00000   0.00000
> :VZERO:v0,v0c,v0x       NaN   0.17793       NaN v5,v5c,v5x       NaN
> -1.77017       NaN
> :VZERY:v0,v0c,v0x       NaN   0.00000       NaN v5,v5c,v5x       NaN
> 0.00000       NaN
> :VZERX:v0,v0c,v0x       NaN   0.35728       NaN v5,v5c,v5x       NaN
> -0.11638       NaN
>
>
>
> ------------------------------------------------------------------------
> *From:* Peter Blaha <pblaha at theochem.tuwien.ac.at>
> *To:* A Mailing list for WIEN2k users <wien at zeus.theochem.tuwien.ac.at>
> *Sent:* Tuesday, February 26, 2013 11:01 AM
> *Subject:* Re: [Wien] mbj scf error
>
> Have you tried another (simple) case, like Si, .... ?
>
> Do again a PBE calculation until self-consistency. Once there is a
> problem with mBJ, one cannot easily recover since the mBJ potential
> depends on the potential of the previous iteration.
>
> Change mixing in case.inm to PRATT  with mixing 0.03  for about 15
> iterations. Then switch to MSR1.  (I should note, that the newest (net
> yet released) version of mixer seems to handle also mBJ pretty well in
> MSR1).
>
> An if a problem occurs, we need more info. Don't rerun it 5 times. As
> mentioned before, with mBJ this will not work but make things worse. The
> failure in lapw1 is usually only a follow up problem with roots
> somewhere before.
>
> Check case.output0. Are there NaNs ?
>
>
> Am 26.02.2013 07:43, schrieb Hajar Nejati:
>  > hi dear ali
>  > I use wien12.
>  > I could not solve my problem  up to now.
>  > can you help me, please?
>  >
>  >
>  > ------------------------------------------------------------------------
>  > *From:* ali ghafari <aaghafari at yahoo.com <mailto:aaghafari at yahoo.com>>
>  > *To:* A Mailing list for WIEN2k users
> <wien at zeus.theochem.tuwien.ac.at <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  > *Sent:* Monday, February 25, 2013 11:10 PM
>  > *Subject:* Re: [Wien] mbj scf error
>  >
>  > Which version of Wien2k you are using?
>  >
>  > Ali
>  >
>  > ------------------------------------------------------------------------
>  > *From:* Hajar Nejati <hajar.nejatipoor at yahoo.com
> <mailto:hajar.nejatipoor at yahoo.com>>
>  > *To:* A Mailing list for WIEN2k users
> <wien at zeus.theochem.tuwien.ac.at <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  > *Sent:* Monday, February 25, 2013 12:46 PM
>  > *Subject:* Re: [Wien] mbj scf error
>  >
>  > Thank you very much dear Gavin.
>  >
>  > ------------------------------------------------------------------------
>  > *From:* Gavin Abo <gsabo at crimson.ua.edu <mailto:gsabo at crimson.ua.edu>>
>  > *To:* A Mailing list for WIEN2k users
> <wien at zeus.theochem.tuwien.ac.at <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  > *Sent:* Sunday, February 24, 2013 2:52 PM
>  > *Subject:* Re: [Wien] mbj scf error
>  >
>  > These old posts might be helpful:
>  >
>  > http://zeus.theochem.tuwien.ac.at/pipermail/wien/2010-March/012700.html
>  > http://zeus.theochem.tuwien.ac.at/pipermail/wien/2010-March/012789.html
>  >
>  > On 2/24/2013 4:04 AM, Hajar Nejati wrote:
>  >> dear hossein
>  >> I calculate scf without parallel calculations, but the error repeat.
>  >> lapw1.error :
>  >> Error in LAPW1
>  >>  Cholesky INFO =            1
>  >>  'SECLR4' - POTRF (Scalapack/LAPACK) failed.
>  >>
>  >>
>  >> ------------------------------------------------------------------------
>  >> *From:* hossien rahnama <h_rahnamay at yahoo.com
> <mailto:h_rahnamay at yahoo.com>>
>  >> <mailto:h_rahnamay at yahoo.com <mailto:h_rahnamay at yahoo.com>>
>  >> *To:* A Mailing list for WIEN2k users
>  >> <wien at zeus.theochem.tuwien.ac.at
> <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  >> <mailto:wien at zeus.theochem.tuwien.ac.at
> <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  >> *Sent:* Sunday, February 24, 2013 1:28 PM
>  >> *Subject:* Re: [Wien] mbj scf error
>  >>
>  >> Dear Hajar,
>  >> Please try without parallelcalculations.
>  >>
>  >> Dr. H.A.Rahnamaye Aliabad,
>  >> Assistant Professor,
>  >> Department of physics,Hakim Sabzevari University,
>  >> Sabzevar,Iran
>  >> Tel:+98-571-4003155
>  >> Fax:+98-571-4411161
>  >> Academic email:rahnama at sttu.ac.ir <mailto:rahnama at sttu.ac.ir>
> <mailto:email:rahnama at sttu.ac.ir <mailto:rahnama at sttu.ac.ir>>
>  >> *From:* Hajar Nejati <hajar.nejatipoor at yahoo.com
> <mailto:hajar.nejatipoor at yahoo.com>>
>  >> <mailto:hajar.nejatipoor at yahoo.com <mailto:hajar.nejatipoor at yahoo.com>>
>  >> *To:* wien2k (for send question) <wien at zeus.theochem.tuwien.ac.at
> <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  >> <mailto:wien at zeus.theochem.tuwien.ac.at
> <mailto:wien at zeus.theochem.tuwien.ac.at>>
>  >> *Sent:* Sunday, February 24, 2013 1:14 PM
>  >> *Subject:* [Wien] mbj scf error
>  >>
>  >> dear all wien users
>  >> I want to calculate band structure of graphane using mbj method for
>  >> XC-potential.
>  >> At first, I copy case.inm_vresp in my directory(to
>  >> graphane.inm_vresp), then i edit graphane.in0 (change NR2V to R2V) and
>  >> run single cycle.
>  >> I run a scf (run_lapw -p -ec 0.0001), after edition of graphane.in0
>  >> [option xc(default=13) to 28] and graphane.in0_grr [option xc to 50].
>  >> this error appear after one or two cycle and the scf stoped:
>  >> LAPW0 END
>  >>  LAPW0 END
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> SECLR4 - Error
>  >> ...
>  >> please help me about this error.
>  >> hajar nejati
>  >>
>  >
>  >
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> --
> Peter Blaha
> Inst.Materials Chemistry
> TU Vienna
> Getreidemarkt 9
> A-1060 Vienna
> Austria
> +43-1-5880115671
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-- 
Peter Blaha
Inst.Materials Chemistry
TU Vienna
Getreidemarkt 9
A-1060 Vienna
Austria
+43-1-5880115671


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