[Carpet] carpetadaptiveregrid: unclipped and small grid ?

[Erik Schnetter]

On Jun 7, 2007, at 04:29:38, Hee Il Kim wrote:

> Hi,
>
> I'm testing CarpetAdaptiveRegrid thorn. If i make a run with  
> AMR1.par, it is aborted with "The grid is unclipped and too small?"  
> This happens because the grid width is smaller than min_width? I  
> can make the run longer by changing the parameters such as  
> min_width, # of cpus but of course this can't be a solution.

The adaptive regridding method is not finished.  It is unlikely that  
this particular implementation will be finished; it has not seen  
development in quite some time.  I have a movie that uses it to  
evolve the scalar wave equation, and I may be able to find the  
parameter file that I used for this.  One shortcoming is that it  
works only on a single processors.

In our applications, there has not really been a need for full  
adaptivity.  We tend to have certain features in our simulations,  
such as black holes and neutron stars, and we choose the grid  
hierarchy by tracking these features.  Full adaptivity would e.g. be  
needed if we tracked shock waves that propagate arbitrarily through  
the domain.  At the moment, we can still live with much simpler  
regridding algorithms.

-erik

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

My email is as private as my paper mail.  I therefore support encrypting
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