Comment (by Miguel Zilhão):

hmm, but the code on Baikal that i was copying from does use GetBoundarySizesAndTypes : https://bitbucket.org/zach_etienne/wvuthorns/src/472cc7f3a8a860040323bb52f5ba1e4e2f4df26d/Baikal/src/BoundaryConditions.c (line 102)

i was trying to base the implementation on that, since @Zach Etienne reports it’s working well…

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2288/leans-boundary-condition-setting-for-bssn