PDC
flo
fsch... at pci.uzh.ch
Fri Jul 24 12:31:35 UTC 2009
Hi Alexey,
in your input file, the section I suggested is still missing. For
consitency you will have to add in the DFT section
&POISSON
PERIODIC NONE
POISSON_SOLVER MT
&END
Just have a look in previous discussions. You can use Wavelet as well,
but therfore the coordinates need to be centered in the middle of the
box
&SUBSYS
&TOPOLOGY
&CENTER_COORDINATES
&END
&END
&END
Another thing, sometimes FULL_ALL works better with smaller values of
the ENERGY_GAP see input refernce:
Should be an estimate for the energy gap [a.u.] (HOMO-LUMO) and is
used in preconditioning, especially effective with the FULL_ALL
preconditioner, in which case it should be an underestimate of the gap
(0.001 doing normally fine). For the other preconditioners, making
this value larger (0.2) will tame the preconditioner in case of poor
initial guesses.
Try once with the proper non periodic setting, maybe the charges get
better.
Cheers
Flo
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