[re-sent, with smaller attachment]
Hi Roland, and thanks for your reply. I'm still a bit confused, I confess
(see below) ...
OK; but can you tell me *why* this is? Why should we ever have to
On 2/16/13 12:38 AM, "Roland Haas" <roland.haas@physics.gatech.edu> wrote:
>Hello Bernard,
>
>> Hi. Can someone explain to me why ML_BSSN calls SelectBoundConds within
>> MoL_PostStep? It seems like the kind of once-off routine that would
>>happen
>> near the start of a simulation, rather than something that has to be
>> performed every single timestep.
>In the "new" boundary/symmetry interface (ie using thorn Boundary and
>Symbase) one has to Select the variables for boundaries each time before
>ApplyBCs is scheduled. There is a routine in Boundaries that clears the
>selection.
re-specify what kind of boundary conditions we use during a simulation,
any more than we re-specify the evolution equations? Perhaps I don't
really understand what "select the variables" means here.