more on to_local trans; sub() -> graft(); new halo_offsets(); s1/e1 '1' computed
more on to_local trans; sub() -> graft(); new halo_offsets(); s1/e1 '1' computed

thender/ppp,maddenp/ppp,thender/ppp,maddenp/ppp,thender/ppp,maddenp/ppp