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[abinit-forum] Re: [abinit-announce] GW : nasty bug if not-ordered list of atoms


Chronological Thread 
  • From: Philippe Blaise <philippe.blaise@cea.fr>
  • To: Xavier Gonze <Xavier.Gonze@uclouvain.be>
  • Cc: forum@abinit.org
  • Subject: [abinit-forum] Re: [abinit-announce] GW : nasty bug if not-ordered list of atoms
  • Date: Mon, 28 Sep 2009 09:44:28 +0200

Xavier Gonze a écrit :
Dear users of ABINIT,

In case you are using the GW capabilities of ABINIT, please, note
that a nasty bug has been uncovered recently, in all production versions
of ABINIT, in case the list of atoms (typat) is not ordered by increasing numbers
(example, for wurtzite with 4 atoms per unit cell,
typat 1 2 1 2 => might lead to erroneous results
typat 1 1 2 2 => is OK )
If the list of atoms is not ordered, then you should try to reorder your atoms,
and redo your calculations.
This bug has been fixed in ABINITv6, due by the end of the year.
Sorry for this ...

Xavier

Dear Xavier,

to be sure, do you mean that this bug is also triggered when one uses a list of atoms in the decreasing order, like
typat 2 2 2 2 1 1 1 1 1

?

Thanks,

Philippe






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