<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; color: rgb(0, 0, 0); font-size: 14px; font-family: Calibri, sans-serif; "><div>Erik et al,</div><div> 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.</div><div>cctk_bbox does not provide the latter distinction. Is there something analogous provided by Carpet?</div><div>Thanks,</div><div>-Scott</div><div><br></div></body></html>