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Re: [abinit-forum] Why I got chkneu warning?


Chronological Thread 
  • From: Xavier Gonze <gonze@pcpm.ucl.ac.be>
  • To: forum@abinit.org
  • Subject: Re: [abinit-forum] Why I got chkneu warning?
  • Date: Tue, 19 Apr 2005 08:56:54 +0200

Dear Yan-jun Guo,

Thanks for signaling it. You can ignore this message.
It will be better tuned in a future version ...

Xavier


Yan-jun Guo wrote:
Dear all:
I made a 2*2*2 ZnS supercell and replace a Zn atom
with a Fe atom. Then ,I got this warning: chkneu : initialized the occupation numbers for
occopt= 1
spin-unpolarized case :
2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
2.00 2.00 2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
2.00 2.00 2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
2.00 2.00 2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
2.00 2.00 2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
2.00 2.00 2.00
2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00
2.00 0.00 0.00

chkneu: nelect_occ= 0.14000000E+03, zval= 0.14000000E+03,
and input value of charge= 0.00000000000000E+00,
nelec_occ is computed from occ and wtk
zval is nominal charge of all nuclei, computed from
zion (read in psp),
charge is an input variable (usually 0).

WARNING - These should obey zval-nelect_occ=charge to
better than 0.10E-10
Action : check input file for occ,wtk, and charge.
Note that wtk is NOT automatically normalized when
occopt=2,
but IS automatically normalized otherwise.

In my system, nelect_occ = zval. Why I still got the
warning?
What should I do now?
Thanks.

Best regards



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