[FLASH-USERS] force a derefinement?
Samuel Friedman
friedman at astro.wisc.edu
Tue Dec 1 18:04:31 EST 2009
FLASH3.2 has introduced the ability to enforce a different maximum
refinement as a function of time. Using this as a template and the code
for Grid_markRefineSpecialized, I wrote a Grid_markDerefineSpecialized
that will derefine a region down to a given refinement level. I did this
based on position in the grid, but you could easily do this based on time
instead.
Sam
On Tue, 1 Dec 2009, Andrew Szymkowiak wrote:
> I would like the later parts of a simulation to run at a lower resolution.
> I first thought I might just lower lrefine_max during a restart, but got
> errors (with FLASH version 3.2) like
>
> ERROR in mpi_amr_1blk_guardcell : pe 2 working on lb 1
> neigh 3 1 3 cannot find surrblk 3,
> etc
>
> Is there a way to get this to work? Or a standalone utility, that would read
> in a checkpoint file, and rebin to a coarser mesh? I can imagine writing such
> a thing, but am hoping not to have to re-invent a wheel...
>
> Thanks,
> Andy S.
>
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