Function t8_offset_next_owner_of_tree(const int, const t8_gloidx_t, const t8_gloidx_t *, int)

Function Documentation

int t8_offset_next_owner_of_tree(const int mpisize, const t8_gloidx_t gtree, const t8_gloidx_t *offset, int current_owner)

Given a process current_owner that has the tree gtree as local tree, find the next bigger rank that also has this tree as local tree.

Parameters:

mpisize – [in] The number of MPI ranks, also the number of entries in offset minus 1.
gtree – [in] The global id of a tree.
offset – [in] The partition to be considered.
current_owner – [in] A process that has gtree as local tree.

Returns:

The MPI rank of the next bigger rank than current_owner that has gtree as local tree. -1 if non such rank exists.