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Re: [abinit-forum] Pseudopotential generation


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  • From: Marc Torrent <marc.torrent@cea.fr>
  • To: forum@abinit.org
  • Subject: Re: [abinit-forum] Pseudopotential generation
  • Date: Wed, 30 Aug 2006 11:20:15 +0200

Dear Paul,
The web page concerning atompaw on abinit's site will soon be updated (with a new and better version).
You can download the new version of Atompaw and Atompaw2Abinit on N. Holzwarth's web page (http://www.wfu.edu/~natalie/papers/pwpaw/man.html).
The format of the input file has sightly changed but there are lot of examples in the provided tarball.
Try the new version... and see if your problem still remains.

Marc


Paul Fons a écrit :
I have been working through N. A. W. Holzwarth's AtomPAW generator example ( http://www.abinit.org/PAW/AtomPAW2Abinit-Manual-html/HolzwarthPAW.htm) for Fe to see if I understand things correctly. I used the latest version of atompaw2abint (from http://www.wfu.edu/~natalie/papers/pwpaw/071206atompaw.tar.gz). I also used the atompaw in the directory loggridatompaw to compile atompaw.

Using the (O) input in the example shown on the abinit webpage (http://www.abinit.org/PAW/AtomPAW2Abinit-Manual-html/HolzwarthPAW.htm) I get an error that states that the exchange and correlation functional does not exist. As this is the example, I am a little confused about how to proceed from here. Any suggestions?



[tachyon:loggridatompaw/test/O] paulfons% atompaw <O.input >/dev/null

the code runs normally with the last few lines


SCFPAW converged in 29 iterations -- delta = 4.721069499117223E-009

PAW results for new configuration
1 2 0 1.0000000E+00 -1.7760237E+00
2 2 1 5.0000000E+00 -7.0573093E-01
evale from matrix elements -3.90730450081254100E+01
Enter 0 to end program
Enter 1 to run SCFPAW

Here I run atom2paw2 (built from the abinit website version).

[tachyon:loggridatompaw/test/O] paulfons% atompaw2abinit
========================================================
== atompaw2abinit - v1.5.3: ==
== Converts a PAW pseudopotential file generated ==
== by "atompaw" code (from N. Holzwarth) ==
== into a PAW atomic data file readable ==
== by Abinit (v4.6.1+) ==
== ==
== "atompaw" can be found at: http://pwpaw.wfu.edu ==
========================================================

Input atomicdata file name (from atompaw) [atomicdata] ? O
Input densities file name (from atompaw) [density] ?
Input potentials file name (from atompaw) [potential] ?
Output psp file name (for Abinit) [abinit.pawps] ?

Do you want to transfer atomic data from AtomPAW
on a (reduced) logarithmic grid (recommended) [y] ?
Logarithmic grid: Number of pts, logarithmic step [350, 0.035] ?

Do you want to improve non-local projector
by using "Real Space Optimization" (King-Smith et al.) [y] ?
Real Space optim.: Ecut, Gamma/Gmax, Wl(error) [20.0, 2.0, .1E-02] ?

Big Pb: exchange and correlation
fonctionnal does not exist !







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