Re: [Wien] Different convergences in Non-SP and SP methods

2017-01-04 Thread pieper
I would argue that you did NOT find a difference between two 
calculations of the same thing. You only told the program to stop early.


If you want to distiguish between states with a difference in energy 
smaller than the default 0.001 Ry, then you have to converge (with 
regard to ALL numeric parameters like RKmax, Emax, k-mesh ...) to a 
smaller energy. The same holds if you want to see if two solutions are 
the same: you can only tell if and that they are the same up to the 
precision you set as convergence criteria. Smaller energy differences 
are not significant - YOU told the program that they are not!



---
Dr. Martin Pieper
Karl-Franzens University
Institute of Physics
Universitätsplatz 5
A-8010 Graz
Austria
Tel.: +43-(0)316-380-8564


Am 03.01.2017 11:26, schrieb Abderrahmane Reggad:

Thank you Mr delamora for your reply

You have got

a 0.003Ry/Cr difference between Cr ferromagnetic and antiferromagnetic
structures

But my problem is that I have found a difference between 2 equivalent
calculations
for the same structure: non magnetic

Best regards

--

Mr:
A.Reggad  

Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret

Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie


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Re: [Wien] shifteig in wien2wannier

2017-01-04 Thread Elias Assmann
On 01/03/2017 04:35 AM, Koyel Bandopadhyay wrote:
> When do we need to do shifteig?
> Is it done before/after w2w step?

Normally (when you have a correct Fermi energy), you do not need it at all.

If you need to use it, it is between w2w and wannier90, since it acts on
case.eig.  If you want to adapt the Fermi energy before w2w, you can do
so by editing case.fermi.


Elias





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Re: [Wien] Different convergences in Non-SP and SP methods

2017-01-04 Thread Abderrahmane Reggad
Thank you Dr Pieper for you answer

According to the results with a difference of 0.001 Ry , can we considere
the 2 calculations are the same ?

Best regards

-- 
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie
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Re: [Wien] Different convergences in Non-SP and SP methods

2017-01-04 Thread Peter Blaha
From the plot you sent earlier the difference in these 2 calculations 
was 0.0001 Ry, not 0.001 !!??


Of course, with your default convergence criterium these 2 calculations 
are the same.


On 01/04/2017 04:16 PM, Abderrahmane Reggad wrote:

Thank you Dr Pieper for you answer

According to the results with a difference of 0.001 Ry , can we
considere the 2 calculations are the same ?

Best regards

--
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie




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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] Different convergences in Non-SP and SP methods

2017-01-04 Thread Abderrahmane Reggad
Thank you again Prof Blaha for your answer

Sorry for difference value. it's 0.0001 Ry.

Best regards
-- 
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie
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[Wien] The results of the 2Doptimize package

2017-01-04 Thread Abderrahmane Reggad
Dear wien users

I have optimized an hexagonal structure with the package 2Doptimize and I
want to know in which file we find the optimal values of the volume V and
the ratio c/a.

Best regards

-- 
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie
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[Wien] LIBXC 3.0

2017-01-04 Thread Abderrahmane Reggad
You may download the compiled version (compiled with the compiler ifort )
from this link :

https://drive.google.com/open?id=0B-QmTukdEFfQX29LcHRSbzktYjQ

and you may follow this video for the installation of the new version of
wien2k_2016.1

https://www.youtube.com/watch?feature=player_embedded&v=VFrJGitdt0Y

good luck

-- 
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie
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Re: [Wien] LIBXC 3.0

2017-01-04 Thread Abderrahmane Reggad
You may download the compiled version (compiled with the compiler ifort )
from this link :

https://drive.google.com/open?id=0B-QmTukdEFfQX29LcHRSbzktYjQ

and you may follow this video for the installation of the new version of
wien2k_2016.1
https://www.youtube.com/watch?feature=player_embedded&v=VFrJGitdt0Y

good luck


-- 
Mr: A.Reggad
Laboratoire de Génie Physique
Université Ibn Khaldoun - Tiaret
Adresse: BP 144 AL ATTAF AIN DEFLA
Tel: +213(0)561861963
Algerie
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