[Pw_forum] SCF correction problem in relaxation
Lorenzo Paulatto
paulatto at sissa.it
Thu Jun 4 10:02:05 CEST 2009
In data 04 giugno 2009 alle ore 05:03:18, Jhon W. González
<jwgonzal2 at yahoo.es> ha scritto:
> and always get the same warning "SCF correction compared to forces is
> too large, reduce conv_thr"
When the forces are ~zero the SCF correction will always be large compared
to them. What counts is if the forces are small enough for you to consider
the calculation converged. Zero +/- zero is still zero.
In any case you can get rid of the message by setting i.e. upscale=1.e+5
which will allow the program to reduce the convergence threshold down to
insane levels, preventing the message from displaying. But is this what
you really want?
regards
--
Lorenzo Paulatto
SISSA & DEMOCRITOS (Trieste)
phone: +39 040 3787 511
skype: paulatz
www: http://people.sissa.it/~paulatto/
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