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Re: Problem with structure optimization


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  • From: jmlv@imr.ac.cn
  • To: forum@abinit.org
  • Subject: Re: Problem with structure optimization
  • Date: Thu, 20 Apr 2006 10:57:21 +0200

Dear Mr. Anglade Pierre-Matthieu and Nuno Galamba,

Firstly, thanks for immediate replies from you two guys.

As having been followed your suggestions, I checked out the
pseudopotentials for number of electrons. I found that, the number of
electrons in 22-Ti.GGA.fhi file is 4, while that for 28-Ni.GGA.fhi is 10.
Accordingly, nband should be (4+10)/2=7. I set nband to 7 and the run went
well for a while. But then there was a BUG message coming out at the end of
the log file, saying:

newocc : BUG -
In order to get the right number of electrons,
it seems that the Fermi energy must be outside the range of eigenenergies,
plus 6 or 30 times the smearing, which is strange.
The calling routine gives nelect= 0.14000000D+02
The lowest bound is -0.16987487D+01, with nelect= 0.00000000D+00
The highest bound is 0.12421480D+01, with nelect= 0.14000000D+02.
Action : contact ABINIT group.

Now I am confused again. I've sent a BUG report about this to Prof. Xavier
Gonze, hoping for a solution from him.

Also I hope you guys help me out. Thanks again for you time.

Jianmin Lu
imr, cas, China



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