[Users] Carpet version of cctk_bbox?

[Roland Haas]

Hello  Scott,

>   For my elliptic solver, I need to know not only if a given grid boundary is an outer boundary or not, I need to know if it's an inter-processor boundary or a mesh refinement boundary.
> cctk_bbox does not provide the latter distinction.  Is there something analogous provided by Carpet?
GenericFD's GenericFD_GetBoundaryInfo routine (in Kranc, see
https://github.com/ianhinder/Kranc/blob/6bed8e74aac5bd1e76f2e7a4d8efcf166a60c6e6/Auxiliary/Cactus/KrancNumericalTools/GenericFD/src/GenericFD.c)
will do this for you. I believe there was discussion at one point to
move this functionality into the flesh but cannot find the thread right now.

Yours,
Roland

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