[Carpet] Regridding & Recomposing

[Erik Schnetter]

On Feb 1, 2007, at 02:58:27, Bela Szilagyi wrote:

> I would suggest something on the following lines:
>
> 1) if the finest level was deactivated, then schedule post-regrid  
> on the new
> finest level only
>
> 2) if a new level was activated (added), the perhaps schedule post- 
> regrid on
> the new finest level only
>
> 3) if the grid-structure changed within an existing level, schedule
> post-regrid on the current and finer levels, but not on the coarser  
> ones.
> Given that the regridding loop goes from coarse to fine, regridding  
> on the
> three finest levels, e.g., should then imply post-regrid on these  
> three
> levels only.

I have decided on a slightly different scheme.  If a level changes,  
postregrid is called on that level.  If a level is removed, then  
postregrid is called on the new finest level.

If you need to perform an action on several levels, use the "global  
loop-local" scheduling option.

> Also, from what I remember you told me, post-regrid needs to be  
> called on all
> time-levels (i.e., including past and past-past levels) for   
> aprolongation
> scheme that is second order in time.

This is already the case.

-erik

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

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