[Users] Problem with CarpetRegrid2/AMR

[Erik Schnetter]

On Tue, Aug 30, 2011 at 5:28 PM, Hal Finkel <hfinkel at anl.gov> wrote:
> Could I also decrease the block size? I currently have
> CarpetRegrid2::adaptive_block_size = 4, could it be smaller than that?
> Is there a restriction based on the number of ghost points?

Yes, you can reduce the block size. I assume that both the regridding
operation and the time evolution will become slower if you do that,
because more blocks will have to be handled. This will also require
more memory, since each block carries its own ghost zone overhead.

No, there is no such restriction.

-erik

-- 
Erik Schnetter <schnetter at cct.lsu.edu>   http://www.cct.lsu.edu/~eschnett/