[Wien] about mini
Stefaan Cottenier
Stefaan.Cottenier at fys.kuleuven.ac.be
Mon Sep 20 08:05:02 CEST 2004
> I'm a beginner to wien2k. When I read the userguide about the mini
> I feel confused about the mini. It required that x,y,z-delta
> parameters for damped Newton scheme must be repeated for every atom.
> As an example: In FCC TiC.struct , I put in two atoms Ti(0,0,0) and
> C(0.5,0.5,0.5). How many atoms I should repeat If I need to perform
> mini ?
There is one line in case.inM for every inequivalent position in
case.struct. For TiC, this means: 2 lines.
> Another question: What kind of structure need to use the program of
> mini. If use this program , is it used after a scf running?
No. Instead of run_lapw, you start mini (with appropriate options, see
UG). mini will start several times run_lapw (typically 10 to 30, this
takes time), because it needs the output of the forces calculated by
run_lapw in order to know how to move the atoms.
Stefaan
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