Function t8_offset_nosend(int, int, const t8_gloidx_t , const t8_gloidx_t )

Function Documentation

int t8_offset_nosend(int proc, int mpisize, const t8_gloidx_t *offset_from, const t8_gloidx_t *offset_to)

Query whether in a repartition setting a given process does send any of its local trees to any other process (including itself)

Parameters:

proc – [in] A mpi rank.
mpisize – [in] The number of MPI ranks, also the number of entries in offset minus 1.
offset_from – [in] The partition table of the current partition.
offset_to – [in] The partition table of the next partition.

Returns:

nonzero if proc will not send any local trees if we repartition from offset_from to offset_to 0 if it does send local trees.