[Carpet] Changes to regridding

[Erik Schnetter]

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
> ----------------------------------------------------
>
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-- 
Erik Schnetter <schnetter at cct.lsu.edu>

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