Re: [Wien] relaxation (was:_nb in dscgst.F 256 128)

2014-11-11 Thread Mona Rahimian
hi friend
I do your suggestions, but I have same errors.
in your openion , what should I do?
 
-- 

Mona Rahimian MSc Student

Physics Department,

College of Sciences

Shiraz University, Shiraz, Iran

E-mail address:rahimia...@ymail.com 




 From: ‪delamora‬ ‪delam...@unam.mx‬
To: ‪A Mailing list for WIEN2k users‬ ‪wien@zeus.theochem.tuwien.ac.at‬ 
Sent: Monday, 10 November 2014, 6:20:31
Subject: Re: [Wien] relaxation (was:_nb in dscgst.F 256 128)
 


Dear Mona,
Now you have a relaxed supercell, that is no longer a supercell, in the 
sense that it is relaxed, the atoms have moved and you have no translation 
symmetry within the cell.
You need to reinitiate the system, the Rmt need to be adjusted to 0% 
reduction to reduce the calculation time. You have problems with .inst, so 
remove it and it will be created in the reinitiation.In the reinitiation you 
will need to put again the atomic magnetic orientations; up, down or no 
magnetic.

Saludos


Pablo





 
De: wien-boun...@zeus.theochem.tuwien.ac.at 
wien-boun...@zeus.theochem.tuwien.ac.at en nombre de Mona Rahimian 
rahimia...@ymail.com
Enviado: lunes, 10 de noviembre de 2014 12:22 a.m.
Para: A Mailing list for WIEN2k users
Asunto: Re: [Wien] relaxation (was:_nb in dscgst.F 256 128) 
 
hi
I relax my supercell. when I want to initial my nano layer, I have this error 
in nn
 case.inst not consistent with Z 

edit case.inst and rerun lstart:
which parameter should be chang?
thanks
 
-- 

Mona Rahimian MSc Student

Physics Department,

College of Sciences

Shiraz University, Shiraz, Iran

E-mail address:rahimia...@ymail.com 




 From: ‪delamora‬ ‪delam...@unam.mx‬
To: ‪A Mailing list for WIEN2k users‬ ‪wien@zeus.theochem.tuwien.ac.at‬ 
Sent: Saturday, 8 November 2014, 6:56:18
Subject: Re: [Wien] relaxation (was:_nb in dscgst.F 256 128)



 
​the forces are in .scf, so you can look at the end of that file or


grepline :for .scf 10


where .scf = real name of scf

10 = # of lines you want to see. grepline lists the last '#' lines of the 
.scf​ file that have ':for' or :FOR', so you will see the results of the 
last iteration, but posibly of earlier iterations as well.

the numbers you will see are not '0' but small ~ 1-5, 5 is fair, 1 is good.






 
De: wien-boun...@zeus.theochem.tuwien.ac.at 
wien-boun...@zeus.theochem.tuwien.ac.at en nombre de Mona Rahimian 
rahimia...@ymail.com
Enviado: sábado, 08 de noviembre de 2014 01:49 a.m.
Para: A Mailing list for WIEN2k users
Asunto: Re: [Wien] relaxation (was:_nb in dscgst.F 256 128) 
 
hi
how can I sure, force in my supercell is 0 and it is relax?
thanks
 

-- 

Mona Rahimian MSc Student

Physics Department,

College of Sciences

Shiraz University, Shiraz, Iran

E-mail address:rahimia...@ymail.com 




 From: ‪Stefaan Cottenier‬ ‪stefaan.cotten...@ugent.be‬
To: ‪A Mailing list for WIEN2k users‬ ‪wien@zeus.theochem.tuwien.ac.at‬ 
Sent: Wednesday, 29 October 2014, 0:12:46
Subject: Re: [Wien] relaxation (was:_nb in dscgst.F 256 128)




 I want to start relax calculation for my supercell.
 I dont know what should I do?
 help me.

step 1: read the usersguide (search for the keywords 'relax' or 'optim')

step 2: study Peter's wien2k workshop slides at 
http://www.wien2k.at/reg_user/textbooks/WIEN2k_lecture-notes_2013/ , in 
particular

http://www.wien2k.at/reg_user/textbooks/WIEN2k_lecture-notes_2013/WIEN2k-getting_started.pdf
 
: this one contains information about a.o. relaxation

http://www.wien2k.at/reg_user/textbooks/WIEN2k_lecture-notes_2013/Exercises_13.pdf
 
: this one contains exercises about a.o. relaxation

After having done this, most likely your question will have been solved.

Stefaan 




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Re: [Wien] About the awk version WIEN2K script use

2014-11-11 Thread Peter Blaha

runfsm_lapw does not have support for   -min

So you need to change manually TOT to FOR in case.in2 and MSR1 to 
MSR1a in case.inm. In addition create case.inM yourself (x pairhess 
-copy). and use -i 999


The runfsm script will also not switch back to MSR1 mode when forces are 
small, so eventually you have to stop manually (touch .stop).



On 11/11/2014 08:14 AM, Laurence Marks wrote:

I am on travel so can only give an incomplete answer. I can think of
three possibilities:
a) You have no free atoms. Unlikely for a supercell unless you edited
case.inM.
b) run_fsm did not change case.in2(c) to FOR as Gavin said. Possible
script bug, please check case.in2(c).
c) Lower/upper case problem. Wien2k is Unix, so requires them to be
different unlike windows. Sometimes OSX is installed with windows
default, as discussed previously on the list.

On Nov 11, 2014 1:03 AM, Gavin Abo gs...@crimson.ua.edu
mailto:gs...@crimson.ua.edu wrote:

Valence corrected forces are needed most likely means that you
need to add the Pulay force by setting the FOR switch in case.in2(c)
[refer to page 123 in the Wien2k 14.2 usersguide:
http://www.wien2k.at/reg_user/textbooks/usersguide.pdf ,
http://www.mail-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg04634.html
]. However, Prof. Marks can probably better comment on that.

On 11/10/2014 3:28 PM, Hu, Wenhao wrote:

Thanks Peter. This problem is resolved by installing gawk. And
also thanks Martin, it's good to know about the difference between
gawk and BSD gawk.

But I met another problem at the moment. After two scf cycles, I
got a message saying that:

'Mixer' - Valence corrected forces are needed

in the mixer.error file. As I said, I'm doing a fixed spin
momentum calculation with structure optimization(MSR1a mode). The
crystal structure I'm looking at is a Nickel doped 2x2x2 SiC
supercell. I appreciate any comments.

I don't know what file is related with this problem. So let me
know what file you think will help to locate the error. I'll post
them later.

Best,
Wenhao




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--
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Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
Email: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
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Re: [Wien] Is it possible artificially shift Fermi level for optical calculations?

2014-11-11 Thread Peter Blaha

I'm not sure I understand. How should EF affect your calculation of optics ?

Is this a metal or an insulator ?

If you want a bigger gap you can use a scissors-shift in case.inkram.


On 11/10/2014 06:28 PM, Martin Gmitra wrote:

Dear Wien2k users,

I am dealing with a slab system having a significant dipole moment.
Therefore, there is a Fermi level offset. I would like to calculate
optical properties of the system while I need to artificially shift
Fermi level. Do you have an idea how to do that?

Best regards,
Martin Gmitra, Uni Regensburg
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--

  P.Blaha
--
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Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
Email: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
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Re: [Wien] About the awk version WIEN2K script use

2014-11-11 Thread Laurence Marks
Minor correction - you do not have to do x pairhess yourself unless you
want to change the parameters -- mixer will call it for you.

___
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
On Nov 11, 2014 2:45 AM, Peter Blaha pbl...@theochem.tuwien.ac.at wrote:

 runfsm_lapw does not have support for   -min

 So you need to change manually TOT to FOR in case.in2 and MSR1 to
 MSR1a in case.inm. In addition create case.inM yourself (x pairhess
 -copy). and use -i 999

 The runfsm script will also not switch back to MSR1 mode when forces are
 small, so eventually you have to stop manually (touch .stop).


 On 11/11/2014 08:14 AM, Laurence Marks wrote:
  I am on travel so can only give an incomplete answer. I can think of
  three possibilities:
  a) You have no free atoms. Unlikely for a supercell unless you edited
  case.inM.
  b) run_fsm did not change case.in2(c) to FOR as Gavin said. Possible
  script bug, please check case.in2(c).
  c) Lower/upper case problem. Wien2k is Unix, so requires them to be
  different unlike windows. Sometimes OSX is installed with windows
  default, as discussed previously on the list.
 
  On Nov 11, 2014 1:03 AM, Gavin Abo gs...@crimson.ua.edu
  mailto:gs...@crimson.ua.edu wrote:
 
  Valence corrected forces are needed most likely means that you
  need to add the Pulay force by setting the FOR switch in case.in2(c)
  [refer to page 123 in the Wien2k 14.2 usersguide:
  http://www.wien2k.at/reg_user/textbooks/usersguide.pdf ,
 
 http://www.mail-archive.com/wien%40zeus.theochem.tuwien.ac.at/msg04634.html
  ]. However, Prof. Marks can probably better comment on that.
 
  On 11/10/2014 3:28 PM, Hu, Wenhao wrote:
  Thanks Peter. This problem is resolved by installing gawk. And
  also thanks Martin, it's good to know about the difference between
  gawk and BSD gawk.
 
  But I met another problem at the moment. After two scf cycles, I
  got a message saying that:
 
  'Mixer' - Valence corrected forces are needed
 
  in the mixer.error file. As I said, I'm doing a fixed spin
  momentum calculation with structure optimization(MSR1a mode). The
  crystal structure I'm looking at is a Nickel doped 2x2x2 SiC
  supercell. I appreciate any comments.
 
  I don't know what file is related with this problem. So let me
  know what file you think will help to locate the error. I'll post
  them later.
 
  Best,
  Wenhao
 
 
 
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 --

P.Blaha
 --
 Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
 Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
 Email: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
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Re: [Wien] relaxation

2014-11-11 Thread Gavin Abo
Probably nobody can help, unless you provide your case.struct file.  
More than likely, the errors are caused by a problem with your case.struct.


On 11/11/2014 1:16 AM, Mona Rahimian wrote:

hi friend
I do your suggestions, but I have same errors.
in your openion , what should I do?*:( sad
--
Mona Rahimian MSc Student
Physics Department,
College of Sciences
Shiraz University, Shiraz, Iran
E-mail address:rahimia...@ymail.com


*From:* ?delamora? ?delam...@unam.mx?
*To:* ?A Mailing list for WIEN2k users? 
?wien@zeus.theochem.tuwien.ac.at?

*Sent:* Monday, 10 November 2014, 6:20:31
*Subject:* Re: [Wien] relaxation (was:_nb in dscgst.F 256 128)

Dear Mona,
Now you have a relaxed supercell, that is no longer a 
supercell, in the sense that it is relaxed, the atoms have moved and 
you have no translation symmetry within the cell.
You need to reinitiate the system, the Rmt need to be adjusted 
to 0% reduction to reduce the calculation time. You have problems with 
.inst, so remove it and it will be created in the 
reinitiation.In the reinitiation you will need to put again the atomic 
magnetic orientations; up, down or no magnetic.


Saludos


Pablo


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Re: [Wien] Problem with parallel compilation

2014-11-11 Thread Peter Blaha
You are right, at least in SRC_aim the compile.msg file does not show 
any errors.


Thus your error messages do not make sense to me and I've never seen 
something like this.


Anyway:  cd $WIENROOT; ls -alsrt
Do you see the executables (..., nn, ... lapw0, lapw1, lapw1c,.)

if not:  cd SRC_nn; ls -alsrt
Do ypu see a file nn ??

If not type:  make and watch the output on the screen.

If there are no errors, at the end there should be a file nn, which is 
the executable (and should be copied down on level: cp nn ..


If you can do this, repeat it manually for SRC_lapw0 and SRC_lapw1

Then go back to siteconfig and recompile all programs.







--
Subject:
Problem with parallel compilation
From:
K. K. Suthar kksut...@live.com
Date:
11/11/2014 07:33 AM
To:
Wien2k_support wien@zeus.theochem.tuwien.ac.at

Dear Prof. Blaha and Wien2k users
I am trying to install (parallel installation) Wien2k version 13 in 
Intel based PC (intel i7 4th generation processor).


After compilation, the error messages seen on terminal are following:

WARNING: no executable found in SRC_afminput. Check compile.msg in this 
directory

WARNING: no executable found in SRC_aim. Check compile.msg in this directory
WARNING: no executable found in SRC_arrows. Check compile.msg in this 
directory


done.

Compile time errors (if any) were:
SRC_elast/compile.msg:make: *** [../genetempl] Error 1
SRC_eosfit6/compile.msg:make: *** [eosfit6] Error 1
SRC_eosfit/compile.msg:make: *** [eosfit] Error 1
SRC_symmetso/compile.msg:make: *** [symmetso] Error 1


Check file   compile.msg   in the corresponding SRC_* directory for the
compilation log and more info on any compilation problem.

 Press RETURN to continue

-end--
I also checked the compile.msg file but not showing any type of error. 
The file is attached as attachment.


--

  P.Blaha
--
Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
Email: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
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[Wien] Basic question regarding band gap calculation using GGA+U approach

2014-11-11 Thread shamik chakrabarti
Dear wien2k users,

   We know that charge transfer type band gap
(transition metal d - oxygen p) is generally underestimated in simple DFT
calculation. Situation may improve a bit by using DFT+U approach, however,
more accurate band gap may be found in Hybrid-DFT calculation.

Now, my question is that is there any scaling factor by which the
underestimation for a charge-transfer type gap in a simple DFT calculation
can be approximated.

Say, in a simple DFT we have found 0.5 eV gap for charge transfer type
states...then whether it can be said that the accurate gap may be 1.5
eV...that mean there is an underestimation of 1 eV for a charge-transfer
type gap in simple DFT calculation..whether there is any such thumb
rule like that or it strictly depends on the system under consideration?

Any response in this regard will be very helpful for us.

Thanks in advance.

with regards,


-- 
Shamik Chakrabarti
Senior Research Fellow
Dept. of Physics  Meteorology
Material Processing  Solid State Ionics Lab
IIT Kharagpur
Kharagpur 721302
INDIA
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Re: [Wien] Basic question regarding band gap calculation using GGA+U approach

2014-11-11 Thread tran

Hi,

Not to my knowledge. In addition such thumb rule would be difficult
to apply when the band gap with LDA/GGA is zero.

F. Tran

On Tue, 11 Nov 2014, shamik chakrabarti wrote:



Dear wien2k users,

                           We know that charge transfer type band gap
(transition metal d - oxygen p) is generally underestimated in simple DFT
calculation. Situation may improve a bit by using DFT+U approach, however,
more accurate band gap may be found in Hybrid-DFT calculation. 

Now, my question is that is there any scaling factor by which the
underestimation for a charge-transfer type gap in a simple DFT calculation
can be approximated.   

Say, in a simple DFT we have found 0.5 eV gap for charge transfer type
states...then whether it can be said that the accurate gap may be 1.5
eV...that mean there is an underestimation of 1 eV for a charge-transfer
type gap in simple DFT calculation..whether there is any such thumb rule
like that or it strictly depends on the system under consideration?  

Any response in this regard will be very helpful for us.

Thanks in advance.

with regards,


--
Shamik Chakrabarti
Senior Research Fellow
Dept. of Physics  Meteorology
Material Processing  Solid State Ionics Lab
IIT Kharagpur
Kharagpur 721302
INDIA

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Re: [Wien] Is it possible artificially shift Fermi level for optical calculations?

2014-11-11 Thread Martin Gmitra
My system is a metal, and should be a semimetal (it is graphene on a
semiconduncting surface). Wien2k gives hole doping of graphene. Once a
dipole correction would be included (cross-checked in Quantum
Espresso), the Fermi level should lie at the Dirac point. From there
came my question about shifting of the Fermi level. The Fermi level in
fact determines which transitions from occupied to unoccupied states
take place.

Best regards,
Martin Gmitra

On Tue, Nov 11, 2014 at 9:48 AM, Peter Blaha
pbl...@theochem.tuwien.ac.at wrote:
 I'm not sure I understand. How should EF affect your calculation of optics ?

 Is this a metal or an insulator ?

 If you want a bigger gap you can use a scissors-shift in case.inkram.



 On 11/10/2014 06:28 PM, Martin Gmitra wrote:

 Dear Wien2k users,

 I am dealing with a slab system having a significant dipole moment.
 Therefore, there is a Fermi level offset. I would like to calculate
 optical properties of the system while I need to artificially shift
 Fermi level. Do you have an idea how to do that?

 Best regards,
 Martin Gmitra, Uni Regensburg
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 --

   P.Blaha
 --
 Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
 Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
 Email: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
 WWW:   http://www.imc.tuwien.ac.at/staff/tc_group_e.php
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Re: [Wien] Is it possible artificially shift Fermi level for optical calculations?

2014-11-11 Thread Peter Blaha

a) Is it necessary that you create a supercell with such a dipole ?
   Can't you put the graphene on both sides and make a symmetric slab ?

b) The easiest way is probably to rerun   x lapw2 -fermi with different 
NE in case.in2. Vary NE until EF is where you want it. However, I don't 
think it helps you much with optic. When you change EF in this way, your 
semiconductor is a metal and you will include such transitions in the 
optic calculations.


If suggestion a) is not possible ?? one could eventually add an electric 
field, but all these things are uncontrolled approximations. If graphene 
is affected by the semiconductor, you need a simulation cell which is 
large enough to do it right.


On 11/11/2014 02:46 PM, Martin Gmitra wrote:

My system is a metal, and should be a semimetal (it is graphene on a
semiconduncting surface). Wien2k gives hole doping of graphene. Once a
dipole correction would be included (cross-checked in Quantum
Espresso), the Fermi level should lie at the Dirac point. From there
came my question about shifting of the Fermi level. The Fermi level in
fact determines which transitions from occupied to unoccupied states
take place.

Best regards,
Martin Gmitra

On Tue, Nov 11, 2014 at 9:48 AM, Peter Blaha
pbl...@theochem.tuwien.ac.at wrote:

I'm not sure I understand. How should EF affect your calculation of optics ?

Is this a metal or an insulator ?

If you want a bigger gap you can use a scissors-shift in case.inkram.



On 11/10/2014 06:28 PM, Martin Gmitra wrote:


Dear Wien2k users,

I am dealing with a slab system having a significant dipole moment.
Therefore, there is a Fermi level offset. I would like to calculate
optical properties of the system while I need to artificially shift
Fermi level. Do you have an idea how to do that?

Best regards,
Martin Gmitra, Uni Regensburg
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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: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
WWW:   http://www.imc.tuwien.ac.at/staff/tc_group_e.php
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--

  P.Blaha
--
Peter BLAHA, Inst.f. Materials Chemistry, TU Vienna, A-1060 Vienna
Phone: +43-1-58801-165300 FAX: +43-1-58801-165982
Email: bl...@theochem.tuwien.ac.atWIEN2k: http://www.wien2k.at
WWW:   http://www.imc.tuwien.ac.at/staff/tc_group_e.php
--
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Re: [Wien] About the awk version WIEN2K script use

2014-11-11 Thread Hu, Wenhao
Thanks guys. This error has been fixed after I manually modified TOT to FOR in 
*.in2c file.

Best regards,
Wenhao
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