[Carpet] Regridding problem

[Erik Schnetter]

Dear Carpet users,

we have found a problem in Carpet's regridding algorithm.  After  
regridding, the boundary conditions need to be re-applied if the  
refined regions are near a boundary (e.g. a symmetry boundary).   
Carpet does not apply the boundary conditions to the past time  
levels, so that the next time interpolation leads to wrong results at  
the mesh refinement boundaries.  This error is somewhat difficult to  
see, since it is present mostly on the past time levels, which are  
usually not output.

I am working on a correction.  In the mean time, please be careful  
about refinement boundaries near symmetry boundaries.

-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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