> On 14 Feb 2018, at 16:21, Miguel Zilhão 
> <miguel.zilhao.nogue...@tecnico.ulisboa.pt> wrote:
> 
> hi Ian,
> 
> many thanks for the parameter file. this allowed me to go a little further (i 
> was missing CoordBase::boundary_shiftout_z_lower = 1 and 
> CoordBase::boundary_shiftout_z_upper = 1).
> however, i'm still getting the following error:
> 
> ERROR from host meurglysIII process 0
>  while executing schedule bin (none), routine (no thorn)::(no routine)
>  in thorn Carpet, file 
> ./Cactus/arrangements/Carpet/Carpet/src/SetupGH.cc:2512:
>  -> There are not enough ghost zones for the desired spatial prolongation 
> order on map 0, refinement level 0.  With a spatial prolongation order of 5, 
> you need at least 3 ghost zones.
> 
> i'm setting:
> 
> Carpet::prolongation_order_space        = 5
> Carpet::prolongation_order_time         = 2
> 
> driver::ghost_size_x                 = 3
> driver::ghost_size_y                 = 3
> driver::ghost_size_z                 = 0
> 
> i'm guessing that in the example you provided things worked because you only 
> had one grid? is there any way of doing this with more inner levels?

Hi,

I have never tried to do this with mesh refinement, no.  This might be a 
limitation in Carpet, because perhaps it tries to prolongate with the same 
order in every direction.

-- 
Ian Hinder
http://members.aei.mpg.de/ianhin

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