[Wien] [Wien2k Users] Running MPI parrallelization in Wien2k

2010-01-27 Thread Ghosh SUDDHASATTWA
Dear Wien2k users, 

I am running Wien2k and all parallel libraries MPI, Scalapack, PBlas and
FFTW have been included during the compilation of Wien2k. Our queuing system
is SGE. 

There are scripts available in the FAQ which is suited for SGE queuing
system. 

I would like to know as to how we can invoke parallel jobs from the w2web. 

After the SCF is initialized, do we have to click the parallel option in the
w2web and then run the SCF cycle? 

But how does Wien2k know we are running through SGE queuing system? 

 

Suddhasattwa Ghosh 

 

 

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[Wien] [Wien2k Users] Global Energy parameter

2010-01-27 Thread Ghosh SUDDHASATTWA
Dear Wien2k users, 

I have a general question on the global energy parameter in case.in1 file. 

In which case the energy parameter is different for d and f orbitals?

If they are kept same and that is what I usually do, then what would be the
implication of having it different in the .in1 file for d and f orbitals? 

 

Any suggestions?

Suddhasattwa 

 

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[Wien] [Wien2k Users] Global Energy parameter

2010-01-27 Thread Stefaan Cottenier

 In which case the energy parameter is different for d and f orbitals?

In those cases where you do have valence f-electrons, or when the 
f-states are only slightly above E_fermi.

 If they are kept same and that is what I usually do,

Don't make such decisions yourself, unless you have a good reason to do 
so. You can rely on what is given in the in1 file that is generated for you.

 then what would be 
 the implication of having it different in the .in1 file for d and f 
 orbitals?

In many cases, the only difference will be that your total energy is a 
bit higher than it should be (I think).

Stefaan



[Wien] [Wien2k Users] Global Energy parameter

2010-01-27 Thread Ghosh SUDDHASATTWA
Hi Stefaan, 
I hope you remember that you gave the suggestion of changing the energy
parameter from 0.90 to 1.3. (my earlier mail on some errors)
After you suggested that, I have kept the energy parameter for d and f
orbitals as 1.30 (1.20 also is quite a good value, the ENE increases only
slightly). 
The default value of 0.30 does not seem to work. 
So I changed it. 

Suddhasattwa 


-Original Message-
From: wien-boun...@zeus.theochem.tuwien.ac.at
[mailto:wien-bounces at zeus.theochem.tuwien.ac.at] On Behalf Of Stefaan
Cottenier
Sent: Wednesday, January 27, 2010 6:57 PM
To: A Mailing list for WIEN2k users
Subject: Re: [Wien] [Wien2k Users] Global Energy parameter


 In which case the energy parameter is different for d and f orbitals?

In those cases where you do have valence f-electrons, or when the 
f-states are only slightly above E_fermi.

 If they are kept same and that is what I usually do,

Don't make such decisions yourself, unless you have a good reason to do 
so. You can rely on what is given in the in1 file that is generated for you.

 then what would be 
 the implication of having it different in the .in1 file for d and f 
 orbitals?

In many cases, the only difference will be that your total energy is a 
bit higher than it should be (I think).

Stefaan

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[Wien] [Wien2k Users] Global Energy parameter

2010-01-27 Thread Stefaan Cottenier

 I hope you remember that you gave the suggestion of changing the energy
 parameter from 0.90 to 1.3. (my earlier mail on some errors)

No, I don't remember that ;-)

 After you suggested that, I have kept the energy parameter for d and f
 orbitals as 1.30 (1.20 also is quite a good value, the ENE increases only
 slightly). 
 The default value of 0.30 does not seem to work. 
 So I changed it. 

Please consider using the -in1ef option, which should give you optimal 
global linearization energies.

The default 0.30 is often too low for systems with f-electrons (heavy 
elements == high Fermi energy == 0.30 is too far below E_fermi to be a 
good global linearization energy).

Stefaan



[Wien] cohesive energy calculation

2010-01-27 Thread mayank gupta
Hi
I am new user . I am trying  to find the energy of Zr(hcp) metal when
lattice parameter are too long more than 10A but for such big lattice
constant scf cycle is not running and showed an error message in
lapw0. Is it installation problem while it is running for real lattice
parameter.


-- 
mayank