[Carpet] ReflectionSymmetry vs grid::domain="bitant"

[Jonathan Thornburg]

Hi, Erik,

As far as I can tell, there are 2 distinct ways to specify a z <--> -z
reflection symmetry in Carpet: I can either specify grid::domain = "bitant",
(x)or I can activate thorn ReflectionSymmetry.  Do these both have the
same semantics?  (In particular, does   grid::domain = "bitant"   still
cause the symmetry BC to be applied if I schedule  ApplyBCs ?)

Are there any reasons to favor one way over the other (besides that
ReflectionSymmetry is newer)?

thanks, ciao,

-- 
-- Jonathan Thornburg <jthorn at aei.mpg.de>      
   Max-Planck-Institut fuer Gravitationsphysik (Albert-Einstein-Institut),
   Golm, Germany, "Old Europe"     http://www.aei.mpg.de/~jthorn/home.html      
   "Washing one's hands of the conflict between the powerful and the
    powerless means to side with the powerful, not to be neutral."
                                      -- quote by Freire / poster by Oxfam