[Carpet] Changes to regridding

Bela Szilagyi szilagyi at aei.mpg.de
Thu May 4 16:50:48 CEST 2006


No, I am not using it.  Am I supposed to?

On Thursday 04 May 2006 16:30, Erik Schnetter wrote:
> Are you using "CarpetIOHDF5::use_reflevels_from_checkpoint"?
>
> -erik
>
> On May 4, 2006, at 09:19:24, Bela Szilagyi wrote:
> > For a few days now I am systematically being bit by this issue.  I
> > have a
> > simulation where, on the fly, I am dropping the finest level.
> >
> > The recovery, using the original parfile, fails.  The "solution" is
> > to edit
> > the parfile and lower the parameter value for  refinement levels.
> >
> > Is there a better solution than having to edit the parfile between
> > checkpoint
> > and recovery?
> >
> > On Monday 01 May 2006 14:14, Erik Schnetter wrote:
> >>> Not mentioning that it is possible to get core dumps by trying to
> >>> change the
> >>> grid-structure at recovery,
> >>
> >> Hm.  You are not really supposed to do that.  Carpet has currently a
> >> missing feature, namely that it does not store the grid structure in
> >> the checkpoint file.  It is therefore necessary to specify the
> >> correct grid structure in the parameter file that you use to
> >> recover.  It is, within certain bounds, possible to change the grid
> >> structure (e.g. having fewer levels), but that was not originally
> >> intended and is not really supported.  It is also not strictly
> >> necessary, since there will be a regridding step after recovering and
> >> before the next time step.
> >
> > --
> > Bela Szilagyi
> > ----------------------------------------------------
> > Max-Planck-Institut für Gravitationsphysik
> > Albert-Einstein-Institut
> > Tel: +49 331 567 7632
> > Fax: +49 331 567 7649
> > ----------------------------------------------------
> >
> > _______________________________________________
> > developers mailing list
> > developers at lists.carpetcode.org
> > http://lists.carpetcode.org/listinfo/developers

-- 
Bela Szilagyi
----------------------------------------------------
Max-Planck-Institut für Gravitationsphysik
Albert-Einstein-Institut
Tel: +49 331 567 7632
Fax: +49 331 567 7649
----------------------------------------------------
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