Re: [Wien] Xcrysden problem

2014-10-10 Thread Peter Blaha

After installation of xcrysden you must kill w2web
(ps -ef |grep w2web  and kill the corresponding processes).

Then make sure your environment is ok (eventually logout/login)
and restart w2web.

PS: before starting w2web, the environment variable XCRYSDEN_TOPDIR
must be set.


Am 10.10.2014 04:51, schrieb bayarr temuujin:

Dear Wien2k users,

I am new to Wien2k and i am running Wien2k version 13.1 on Ubuntu 14.04. LTS. I 
have problem with Xcrysden not showing up when i run electron density 
calculation. The
button Calculate density with XCrysden doesnt show up. I have re-installed 
Xcrysden and XCrysden is working fine. Please help me out.
Best regards,
Temuujin


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Tel: +43-1-5880115671
Fax: +43-1-5880115698
email: pbl...@theochem.tuwien.ac.at
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Re: [Wien] Installation of 14.1 vs 13.1 using gfortran+gcc

2014-10-10 Thread Peter Blaha

Thank's for the report.

gfortran is much more picky than ifort, so non-standard programming gets
accepted with ifort, but not with gfortran.

A modified Tmaker.f program will be supplied in the next version, where the
corresponding read statements are replaced by something like:

 read(10,'(a)') row
 READ(row(25:79),*) ai,bi,ci
! write(*,*) ai,bi,ci
 read(10,'(a)') row
 READ(row(25:79),*) alpha,beta,gamma

 read(10,'(a)') row
 READ(row(20:79),*) xp,yp,zp
...
 read(10,'(a)') row
 READ(row(20:79),*) xp,yp,zp
! READ(10,1007) xp,yp,zp




On 10/09/2014 03:30 PM, Priyanka Seth wrote:

Dear Wien2k users and developers,

I have been trying to install the 14.1 version of the code on the
machines that I use, but have struggled when using gfortran+gcc while
installation on ifort+mkl combination works beautifully.

More specifically, I am installing sequentially on Ubuntu 14.04 machines
with standard lapack and blas, gfortran and gcc (I have tried both
versions 4.8 and 4.9 unsuccessfully). I have chosen the siteconfig_lapw
settings as follows:



SRC_lapw0:
pwxad5.f:22.9:

   IF(GGA_SWITCH .EQ. .true.) THEN
  1
Error: Logicals at (1) must be compared with .eqv. instead of .eq.
make[1]: *** [pwxad5.o] Error 1


SRC_Tmaker:
rm -f Tmaker.o
clean
gfortran -c -ffree-form -O2 -ffree-line-length-none  Tmaker.f
Tmaker.f:485.19:

  1007 FORMAT(20X,F,F,F)
1
Error: Nonnegative width required in format string at (1)
Tmaker.f:493.19:

  1025 FORMAT(24X,F,F,F)
1
Error: Nonnegative width required in format string at (1)
Tmaker.f:55.21:

  READ(10,1025) alpha,beta,gamma
  1
Error: FORMAT label 1025 at (1) not defined
Tmaker.f:55.21:

  READ(10,1025) alpha,beta,gamma
  1
Error: FORMAT label 1025 at (1) not defined
Tmaker.f:249.21:

  READ(10,1007) xp,yp,zp
  1
Error: FORMAT label 1007 at (1) not defined
Tmaker.f:1313.20:

 if(Eqrv(sp,s6(1,k),ndim,.0001)) then
 1
Warning: Type mismatch in argument 'a' at (1); passed REAL(8) to REAL(4)
Tmaker.f:249.21:

  READ(10,1007) xp,yp,zp
  1
Error: FORMAT label 1007 at (1) not defined
make: *** [Tmaker.o] Error 1



Looking into the files with .EQ., it seems that not much has changed
between 13.1 and 14.1. I know it is possible to simply replace EQ with
EQV, but I am surprised that with the same system setup and compiler, it
is a problem for one system and not another. Any ideas why?

Many thanks for your help,
Priyanka Seth
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Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
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Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Pavel Ondracka
On Thu, 2014-10-09 at 08:02 -0500, Laurence Marks wrote:
 I am not sure what exactly you are trying to do. It looks like you
 have some approximation to a Si doped amorphous TiO2 structure. The
 BVS looks reasonable, so this may have come from some other code.

Yeah, the structure was produced by simulated annealing done by other
code and I want to calculate band gap and optical constants with Wien2k
using mBJ. At the moment I'm just trying to converge the case with LDA
before I initialize mBJ.

 
 One thing odd is the RMT for Si of 1.44 which may very well lead to
 problems. This is actually close to what setrmt is giving. I think
 there may be a bug here in setrmt, Peter can say more. The small Si
 RMT is why you are losing core electrons.
 
 
 One thing you can do is (after at least one pass) do x RMTCheck.
 This will show the magnitude of the discontinuity at the RMT. I have
 seen that the discontinuities of different types of atoms should be
 roughly the same, and I suspect that in your case they are not. 
 
Looking at the output of x RMTCheck (attached) the Si atom doesn't seem
to stand out too much, but I don't have any idea what roughly the same
means in this case. Can you have a look please? At the moment I have a
converged LDA case with the Si RMT = 1.44 and ecut -10.2 (no warnings)
and I'm wondering if I can continue with mBJ or rather restart with
different RMTs and higher ecut (e.g. -7.2).
 
 Without running your case myself, I would want to use
 
 
 cp case.struct Hold.struct
 setrmt case -a Ti:1.7,Si:1.6,O:1.4 ; cp *set* *.struct
 
 
 case is the name and the initial cp is because sometimes setrmt can be
 slightly buggy and get confused about decimal points.
 
 
 This initialized for me without warning with -ecut -7.2 and only the
 Si 2p as semicore not the 2s as well.

After playing with this a little bit more it seems that the old scheme
in setrmt is actually giving better results in my case:

new: O:1.57 Ti:1.74 Si:1.44
old: O:1.56 Ti:1.76 Si:1.56

The O and Ti RMTs are quite similar so I have no idea why the Si RMT is
so much lower with the new scheme.
BTW with the old scheme I can get no warning also with only 2p states. 
 
 N.B., you may want to increase nband at the bottom of case.in1c to
 something like 480 or 512, increase emin to 2.5, only use one k-point
 and for LDA with these RMTs I suspect that a RKMAX of 6 is fine.

Did you meant increase emax to 2.5?

Anyway this is really helpful, thank you very much.
 
 
 On Thu, Oct 9, 2014 at 7:01 AM, Pavel Ondracka
 pavel.ondra...@email.cz wrote:
 On Thu, 2014-10-09 at 06:23 -0500, Laurence Marks wrote:
  Why are you using P1? You have made everything much slower
 and less
  efficient.
 
  Beyond this it is hard to guess.
 
 Well, P1 is what I get during the initialization with sgrup.
 
 In the meantime I managed to get it running by removing -it
 switch (two
 successful iterations so far), so will see if it actually
 stays working.
 
 Best regards
 Pavel Ondračka
 
  __
  Professor Laurence Marks
  Department of Materials Science and Engineering
  Northwestern University
  www.numis.northwestern.edu
  MURI4D.numis.northwestern.edu
  Co-Editor, Acta Cryst A
  Research is to see what everybody else has seen, and to
 think what
  nobody else has thought
  Albert Szent-Gyorgi
 
  Dear Wien2k mailing list,
 
  I have a problem with crash in parallel lapw1. It crash with
 SECLIT -
  Error in Cholesky output in stderr. Looking at tail of
 corresponding
  case.output1_2 I see:
 
  Time for los  (hamilt, cpu/wall) :  0.8
  5.6
  Time for alm (hns) :  4.2
  Time for vector  (hns) : 14.8
  Time for vector2 (hns) : 14.0
  Time for VxV (hns) :211.3
  Wall Time for VxV(hns) :  2.8
   reading Afacts  -1  0.000E+000
  :seclit:  estimate of singular value, factor:   0.6527E+00
 0.1000E-14
  :seclit:  min(sproj(ne+1:2ne))   0.3110E-02
   WARNING: INFO (Cholesky) =  679
 
  I found some suggestions for Cholesky errors here:
  http://www.mail-archive.com/wien%
  40zeus.theochem.tuwien.ac.at/msg02400.html
  however I'm quite sure my struct is OK, RKmax is default 7
 (which
  should
  be reasonable for compound with Si Ti and O) and neither can
 I spot
  any
  problems in my in1 file.
 
  This happens in second scf cycle. I'm using a LDA potential
 and
  everything was initialized to the default in init_lapw
 (except 

Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Laurence Marks
I forgot that your case has no inversion symmetry -- you need to use x
RMTCheck -c. Please send me that output so I can make educated guesses.

If you are using -it then increasing nband and emax can help. The iterative
methods use an expansion in terms of the previous eigensolutions, both
occupied and some unoccupied. If this expansion is not adequate I am
pretty certain one starts to get ghostbands and many other problems. (This
is more intuition and experience than any proper math.)

I do know that for MSR1a one can often improve things a little by using
more solutions, the speed cost is very minor so long and you do not use
extreme increases. I also prefer -noHinv, but that is my personal view not
a general suggestion.

On Fri, Oct 10, 2014 at 4:03 AM, Pavel Ondracka pavel.ondra...@email.cz
wrote:

 On Thu, 2014-10-09 at 08:02 -0500, Laurence Marks wrote:
  I am not sure what exactly you are trying to do. It looks like you
  have some approximation to a Si doped amorphous TiO2 structure. The
  BVS looks reasonable, so this may have come from some other code.

 Yeah, the structure was produced by simulated annealing done by other
 code and I want to calculate band gap and optical constants with Wien2k
 using mBJ. At the moment I'm just trying to converge the case with LDA
 before I initialize mBJ.

 
  One thing odd is the RMT for Si of 1.44 which may very well lead to
  problems. This is actually close to what setrmt is giving. I think
  there may be a bug here in setrmt, Peter can say more. The small Si
  RMT is why you are losing core electrons.
 
 
  One thing you can do is (after at least one pass) do x RMTCheck.
  This will show the magnitude of the discontinuity at the RMT. I have
  seen that the discontinuities of different types of atoms should be
  roughly the same, and I suspect that in your case they are not.
 
 Looking at the output of x RMTCheck (attached) the Si atom doesn't seem
 to stand out too much, but I don't have any idea what roughly the same
 means in this case. Can you have a look please? At the moment I have a
 converged LDA case with the Si RMT = 1.44 and ecut -10.2 (no warnings)
 and I'm wondering if I can continue with mBJ or rather restart with
 different RMTs and higher ecut (e.g. -7.2).
 
  Without running your case myself, I would want to use
 
 
  cp case.struct Hold.struct
  setrmt case -a Ti:1.7,Si:1.6,O:1.4 ; cp *set* *.struct
 
 
  case is the name and the initial cp is because sometimes setrmt can be
  slightly buggy and get confused about decimal points.
 
 
  This initialized for me without warning with -ecut -7.2 and only the
  Si 2p as semicore not the 2s as well.

 After playing with this a little bit more it seems that the old scheme
 in setrmt is actually giving better results in my case:

 new: O:1.57 Ti:1.74 Si:1.44
 old: O:1.56 Ti:1.76 Si:1.56

 The O and Ti RMTs are quite similar so I have no idea why the Si RMT is
 so much lower with the new scheme.
 BTW with the old scheme I can get no warning also with only 2p states.
 
  N.B., you may want to increase nband at the bottom of case.in1c to
  something like 480 or 512, increase emin to 2.5, only use one k-point
  and for LDA with these RMTs I suspect that a RKMAX of 6 is fine.

 Did you meant increase emax to 2.5?

 Anyway this is really helpful, thank you very much.
 
 
  On Thu, Oct 9, 2014 at 7:01 AM, Pavel Ondracka
  pavel.ondra...@email.cz wrote:
  On Thu, 2014-10-09 at 06:23 -0500, Laurence Marks wrote:
   Why are you using P1? You have made everything much slower
  and less
   efficient.
  
   Beyond this it is hard to guess.
  
  Well, P1 is what I get during the initialization with sgrup.
 
  In the meantime I managed to get it running by removing -it
  switch (two
  successful iterations so far), so will see if it actually
  stays working.
 
  Best regards
  Pavel Ondračka
 
   __
   Professor Laurence Marks
   Department of Materials Science and Engineering
   Northwestern University
   www.numis.northwestern.edu
   MURI4D.numis.northwestern.edu
   Co-Editor, Acta Cryst A
   Research is to see what everybody else has seen, and to
  think what
   nobody else has thought
   Albert Szent-Gyorgi
  
   Dear Wien2k mailing list,
  
   I have a problem with crash in parallel lapw1. It crash with
  SECLIT -
   Error in Cholesky output in stderr. Looking at tail of
  corresponding
   case.output1_2 I see:
  
   Time for los  (hamilt, cpu/wall) :  0.8
   5.6
   Time for alm (hns) :  4.2
   Time for vector  (hns) : 14.8
   Time for vector2 (hns) : 14.0
   Time for VxV (hns) :211.3
   Wall 

Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Pavel Ondračka
Laurence Marks píše v Pá 10. 10. 2014 v 09:03 -0500:
 I forgot that your case has no inversion symmetry -- you need to use
 x RMTCheck -c. Please send me that output so I can make educated
 guesses.

x RMTCheck -c output attached.
 
 
 If you are using -it then increasing nband and emax can help. The
 iterative methods use an expansion in terms of the previous
 eigensolutions, both occupied and some unoccupied. If this expansion
 is not adequate I am pretty certain one starts to get ghostbands and
 many other problems. (This is more intuition and experience than any
 proper math.)
 
 
 I do know that for MSR1a one can often improve things a little by
 using more solutions, the speed cost is very minor so long and you do
 not use extreme increases. I also prefer -noHinv, but that is my
 personal view not a general suggestion.



Atom   1 O| RMT Charge   1.287 Grad   2.661 | Step Charge  0.00397, 0.0 
Gradient   0.1141, -0.1141 O   
Atom   2 O| RMT Charge   1.291 Grad   2.673 | Step Charge  0.00437, 0.0 
Gradient   0.1144, -0.1144 O   
Atom   3 O| RMT Charge   1.312 Grad   2.686 | Step Charge  0.00492, 0.0 
Gradient   0.1113, -0.1113 O   
Atom   4 O| RMT Charge   1.261 Grad   2.634 | Step Charge  0.00654, 0.0 
Gradient   0.1102, -0.1102 O   
Atom   5 O| RMT Charge   1.283 Grad   2.659 | Step Charge  0.00461, 0.0 
Gradient   0.1137, -0.1137 O   
Atom   6 O| RMT Charge   1.258 Grad   2.653 | Step Charge  0.00199, 0.0 
Gradient   0.1116, -0.1116 O   
Atom   7 O| RMT Charge   1.298 Grad   2.655 | Step Charge  0.00656, 0.0 
Gradient   0.1158, -0.1158 O   
Atom   8 O| RMT Charge   1.260 Grad   2.630 | Step Charge  0.00616, 0.0 
Gradient   0.1092, -0.1092 O   
Atom   9 O| RMT Charge   1.275 Grad   2.647 | Step Charge  0.00579, 0.0 
Gradient   0.1121, -0.1121 O   
Atom  10 O| RMT Charge   1.279 Grad   2.654 | Step Charge  0.00568, 0.0 
Gradient   0.1145, -0.1145 O   
Atom  11 O| RMT Charge   1.266 Grad   2.628 | Step Charge  0.00687, 0.0 
Gradient   0.1127, -0.1125 O   
Atom  12 O| RMT Charge   1.268 Grad   2.659 | Step Charge  0.00259, 0.0 
Gradient   0.1113, -0.1113 O   
Atom  13 O| RMT Charge   1.279 Grad   2.666 | Step Charge  0.00305, 0.0 
Gradient   0.1133, -0.1133 O   
Atom  14 O| RMT Charge   1.323 Grad   2.705 | Step Charge  0.00318, 0.0 
Gradient   0.1131, -0.1131 O   
Atom  15 O| RMT Charge   1.289 Grad   2.643 | Step Charge  0.00755, 0.0 
Gradient   0.1158, -0.1154 O   
Atom  16 O| RMT Charge   1.275 Grad   2.662 | Step Charge  0.00435, 0.0 
Gradient   0.1133, -0.1133 O   
Atom  17 O| RMT Charge   1.300 Grad   2.670 | Step Charge  0.00486, 0.0 
Gradient   0.1154, -0.1154 O   
Atom  18 O| RMT Charge   1.283 Grad   2.668 | Step Charge  0.00422, 0.0 
Gradient   0.1139, -0.1139 O   
Atom  19 O| RMT Charge   1.275 Grad   2.661 | Step Charge  0.00395, 0.0 
Gradient   0.1127, -0.1127 O   
Atom  20 O| RMT Charge   1.297 Grad   2.666 | Step Charge  0.00314, 0.0 
Gradient   0.1152, -0.1152 O   
Atom  21 O| RMT Charge   1.286 Grad   2.659 | Step Charge  0.00493, 0.0 
Gradient   0.1134, -0.1134 O   
Atom  22 O| RMT Charge   1.341 Grad   2.723 | Step Charge  0.00295, 0.0 
Gradient   0.1125, -0.1125 O   
Atom  23 O| RMT Charge   1.273 Grad   2.636 | Step Charge  0.00653, 0.0 
Gradient   0.1121, -0.1121 O   
Atom  24 O| RMT Charge   1.285 Grad   2.672 | Step Charge  0.00336, 0.0 
Gradient   0.1140, -0.1140 O   
Atom  25 O| RMT Charge   1.268 Grad   2.634 | Step Charge  0.00673, 0.0 
Gradient   0.1137, -0.1130 O   
Atom  26 O| RMT Charge   1.312 Grad   2.695 | Step Charge  0.00205, 0.0 
Gradient   0.1102, -0.1102 O   
Atom  27 O| RMT Charge   1.292 Grad   2.657 | Step Charge  0.00493, 0.0 
Gradient   0.1149, -0.1149 O   
Atom  28 O| RMT Charge   1.257 Grad   2.622 | Step Charge  0.00719, 0.0 
Gradient   0.1109, -0.1104 O   
Atom  29 O| RMT Charge   1.262 Grad   2.653 | Step Charge  0.00207, 0.0 
Gradient   0.1114, -0.1114 O   
Atom  30 O| RMT Charge   1.265 Grad   2.653 | Step Charge  0.00466, 0.0 
Gradient   0.1113, -0.1113 O   
Atom  31 O| RMT Charge   1.258 Grad   2.646 | Step Charge  0.00242, 0.0 
Gradient   0.1106, -0.1106 O   
Atom  32 O| RMT Charge   1.277 Grad   2.654 | Step Charge  0.00392, 0.0 
Gradient   0.1123, -0.1123 O   
Atom  33 Ti   | RMT Charge   1.003 Grad   2.070 | Step Charge  0.01565, 0.0 
Gradient   0.1137, -0.1120 Ti  
Atom  34 Ti   | RMT Charge   0.961 Grad   2.094 | Step Charge  0.00946, 0.0 
Gradient   0.1093, -0.1090 Ti  
Atom  35 Ti   | RMT Charge   0.963 Grad   2.091 | Step Charge  0.00834, 0.0 
Gradient   0.1092, -0.1092 Ti  
Atom  36 Ti   | RMT Charge   0.988 Grad   2.081 | Step Charge  0.00779, 0.0 
Gradient   0.1109, -0.1109 Ti  
Atom  37 Ti   | RMT Charge   0.993 Grad   2.080 | Step Charge  0.01081, 0.0 
Gradient  

Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Laurence Marks
What RMT's?

On Fri, Oct 10, 2014 at 11:18 AM, Pavel Ondračka pavel.ondra...@email.cz
wrote:

 Laurence Marks píše v Pá 10. 10. 2014 v 09:03 -0500:
  I forgot that your case has no inversion symmetry -- you need to use
  x RMTCheck -c. Please send me that output so I can make educated
  guesses.

 x RMTCheck -c output attached.
 
 
  If you are using -it then increasing nband and emax can help. The
  iterative methods use an expansion in terms of the previous
  eigensolutions, both occupied and some unoccupied. If this expansion
  is not adequate I am pretty certain one starts to get ghostbands and
  many other problems. (This is more intuition and experience than any
  proper math.)
 
 
  I do know that for MSR1a one can often improve things a little by
  using more solutions, the speed cost is very minor so long and you do
  not use extreme increases. I also prefer -noHinv, but that is my
  personal view not a general suggestion.






-- 
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu
Corrosion in 4D: MURI4D.numis.northwestern.edu
Co-Editor, Acta Cryst A
Research is to see what everybody else has seen, and to think what nobody
else has thought
Albert Szent-Gyorgi
___
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Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Pavel Ondračka
Laurence Marks píše v Pá 10. 10. 2014 v 11:23 -0500:
 What RMT's?

This is still with the original RMTs, e.g. the ones which are produced
by setrmt new scheme.

O:1.57 Ti:1.74 Si:1.44
 
 On Fri, Oct 10, 2014 at 11:18 AM, Pavel Ondračka
 pavel.ondra...@email.cz wrote:
 Laurence Marks píše v Pá 10. 10. 2014 v 09:03 -0500:
  I forgot that your case has no inversion symmetry -- you
 need to use
  x RMTCheck -c. Please send me that output so I can make
 educated
  guesses.
 
 x RMTCheck -c output attached.
 
 
  If you are using -it then increasing nband and emax can
 help. The
  iterative methods use an expansion in terms of the previous
  eigensolutions, both occupied and some unoccupied. If this
 expansion
  is not adequate I am pretty certain one starts to get
 ghostbands and
  many other problems. (This is more intuition and experience
 than any
  proper math.)
 
 
  I do know that for MSR1a one can often improve things a
 little by
  using more solutions, the speed cost is very minor so long
 and you do
  not use extreme increases. I also prefer -noHinv, but that
 is my
  personal view not a general suggestion.
 
 
 
 
 
 
 
 -- 
 Professor Laurence Marks
 Department of Materials Science and Engineering
 Northwestern University
 www.numis.northwestern.edu
 Corrosion in 4D: MURI4D.numis.northwestern.edu
 Co-Editor, Acta Cryst A
 Research is to see what everybody else has seen, and to think what
 nobody else has thought
 Albert Szent-Gyorgi
 ___
 Wien mailing list
 Wien@zeus.theochem.tuwien.ac.at
 http://zeus.theochem.tuwien.ac.at/mailman/listinfo/wien
 SEARCH the MAILING-LIST at:  
 http://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/index.html



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Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Laurence Marks
Thanks.

I don't see anything obviously problematic. The only way I know to check
RMT values is to minimize the energy with a constant RKMAX*min(RMT) (Peter
might know a better one). My observation is that is approximately when the
last term on the right of the output, the step in the gradient, is roughly
the
same for different atom types. It should also be not too large.

Your value of 0.1 for Ti  O looks fine to me, both small enough and
suggesting that your RKMAX is big enough. There is a reasonable amount of
charge at the RMT for O ( ~1.3) which is to be expected, less for the Ti,
again fine. The value for the gradient for Si of 0.576 is slightly
surprising to me, I guess most of the Si valence density is outside the RMT
except for the 2s (guessing).

Without real proof I would be slightly cautious of how the Si is being
treated. It is probably fine.

On Fri, Oct 10, 2014 at 11:47 AM, Pavel Ondračka pavel.ondra...@email.cz
wrote:

 Laurence Marks píše v Pá 10. 10. 2014 v 11:23 -0500:
  What RMT's?

 This is still with the original RMTs, e.g. the ones which are produced
 by setrmt new scheme.

 O:1.57 Ti:1.74 Si:1.44
 
  On Fri, Oct 10, 2014 at 11:18 AM, Pavel Ondračka
  pavel.ondra...@email.cz wrote:
  Laurence Marks píše v Pá 10. 10. 2014 v 09:03 -0500:
   I forgot that your case has no inversion symmetry -- you
  need to use
   x RMTCheck -c. Please send me that output so I can make
  educated
   guesses.
 
  x RMTCheck -c output attached.
  
  
   If you are using -it then increasing nband and emax can
  help. The
   iterative methods use an expansion in terms of the previous
   eigensolutions, both occupied and some unoccupied. If this
  expansion
   is not adequate I am pretty certain one starts to get
  ghostbands and
   many other problems. (This is more intuition and experience
  than any
   proper math.)
  
  
   I do know that for MSR1a one can often improve things a
  little by
   using more solutions, the speed cost is very minor so long
  and you do
   not use extreme increases. I also prefer -noHinv, but that
  is my
   personal view not a general suggestion.
 
 
 
 
 
 
 
  --
  Professor Laurence Marks
  Department of Materials Science and Engineering
  Northwestern University
  www.numis.northwestern.edu
  Corrosion in 4D: MURI4D.numis.northwestern.edu
  Co-Editor, Acta Cryst A
  Research is to see what everybody else has seen, and to think what
  nobody else has thought
  Albert Szent-Gyorgi
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-- 
Professor Laurence Marks
Department of Materials Science and Engineering
Northwestern University
www.numis.northwestern.edu
Corrosion in 4D: MURI4D.numis.northwestern.edu
Co-Editor, Acta Cryst A
Research is to see what everybody else has seen, and to think what nobody
else has thought
Albert Szent-Gyorgi
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Re: [Wien] lapw1 crash with SECLIT - Error in Cholesky

2014-10-10 Thread Pavel Ondračka
Laurence Marks píše v Pá 10. 10. 2014 v 11:59 -0500:
 Thanks.
 
 
 I don't see anything obviously problematic. The only way I know to
 check RMT values is to minimize the energy with a constant
 RKMAX*min(RMT) (Peter might know a better one). My observation is that
 is approximately when the last term on the right of the output, the
 step in the gradient, is roughly the
 same for different atom types. It should also be not too large.
 
 
 Your value of 0.1 for Ti  O looks fine to me, both small enough and
 suggesting that your RKMAX is big enough. There is a reasonable amount
 of charge at the RMT for O ( ~1.3) which is to be expected, less for
 the Ti, again fine. The value for the gradient for Si of 0.576 is
 slightly surprising to me, I guess most of the Si valence density is
 outside the RMT except for the 2s (guessing).
 
 
 Without real proof I would be slightly cautious of how the Si is being
 treated. It is probably fine.

OK, ATM I'm running the calculation again with different RMTs just to be
sure and if the both results are consistent, I will continue with mBJ.

Thanks a lot for your help.


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