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?
thanks, Miguel
On 14/02/18 22:25, ian.hinder@aei.mpg.de wrote:
On 13 Feb 2018, at 06:19, Miguel Zilhão <miguel.zilhao.nogueira@tecnico.ulisboa.pt mailto:miguel.zilhao.nogueira@tecnico.ulisboa.pt> wrote:
hi Erik,
thanks for your reply. i've tried to set the parameters as you described, but i'm getting a Carpet assertion failure:
cactus_Lean_ET: Cactus/arrangements/Carpet/CarpetLib/src/gh.cc:61 http://gh.cc:61/: gh::gh(const std::vector<vect<int, 3> >&, centering, int, centering, const std::vector<std::vector<bbox<int, 3> >
&, const i2vect&): Assertion `all(box.shape() / box.stride() >= boundary_width[0] +
boundary_width[1])' failed.
here's how i'm specifying my grid:
CoordBase::xmin = -48.00 CoordBase::ymin = -48.00 CoordBase::zmin = 0.00 CoordBase::xmax = +48.00 CoordBase::ymax = +48.00 CoordBase::zmax = +0.00 CoordBase::dx = 2.00 CoordBase::dy = 2.00 CoordBase::dz = 2.00
driver::ghost_size_x = 3 driver::ghost_size_y = 3 driver::ghost_size_z = 0
CoordBase::boundary_size_x_lower = 3 CoordBase::boundary_size_y_lower = 3 CoordBase::boundary_size_z_lower = 0 CoordBase::boundary_size_x_upper = 0 CoordBase::boundary_size_y_upper = 0 CoordBase::boundary_size_z_upper = 0
CoordBase::boundary_shiftout_x_lower = 0 CoordBase::boundary_shiftout_y_lower = 0 CoordBase::boundary_shiftout_z_lower = 0
am i missing something?
Hi Miguel,
There is an example parameter file in Kranc, for a true 2D Laplace equation (i.e. it doesn't take derivatives in the z direction):
https://github.com/ianhinder/Kranc/blob/master/Examples/laplace.par
I have not tried this recently, but it worked at one point.
-- Ian Hinder http://members.aei.mpg.de/ianhin