many thanks Roland! with this option it does work fine, yes.
i now have a follow-up question... i would like to experiment with different
boundary conditions,
which i would like to implement myself. i had a look at LlamaWaveToy to see how
it's implemented
therein; would the following be a correct way of looping through the outer
boundary points (assuming
the boundary to be a spherical shell, as in LlamaWaveToy)?
reflevel = GetRefinementLevel(cctkGH)
map = MultiPatch_GetMap(cctkGH)
if (reflevel /= 0 .or. map == 0) return
do j = 1, cctk_lsh(2)
do i = 1, cctk_lsh(1)
do k = cctk_lsh(3)-cctk_nghostzones(3)+1, cctk_lsh(3)
if (Sn(i,j,k) == -2) then
[my BCs go here]
end if
end do
end do
end do
thanks,
Miguel
On 18/06/19 02:45, Haas, Roland wrote:
> Hello Miguel,
>
> assuming that your outer boundary is spherical, your should set:
>
> NewRad::z_is_radial = "yes"
>
> Yours,
> Roland
>
>> hi all,
>>
>> i've been implementing a scalar wave evolution code to work with the Llama
>> multipatch
>> infrastructure. i think i have it working except for the boundary
>> conditions. as a first test, i
>> tried to call the NewRad infrastructure, in the same way that i usually do
>> for my non-multipatch codes:
>>
>> ierr = NewRad_Apply(cctkGH, phi, rhs_phi, phi_0, one, n_phi)
>> ierr = NewRad_Apply(cctkGH, Kphi, rhs_Kphi, Kphi_0, one, n_Kphi)
>>
>> but this does not seem to work as i get instabilities very early on... am i
>> missing something, or is
>> NewRad not designed to work with Llama? if so, what is the "standard" way of
>> imposing BCs for
>> multipatch evolutions?
>>
>> thanks,
>> Miguel
>> _______________________________________________
>> Users mailing list
>> [email protected]
>> http://lists.einsteintoolkit.org/mailman/listinfo/users
>
>
>
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