Function t8_offset_prev_owner_of_tree

• Defined in File t8_cmesh_offset.h

Function Documentation

int t8_offset_prev_owner_of_tree(const int mpisize, const t8_gloidx_t gtree, const t8_gloidx_t *offset, const int current_owner)

Given a process current_owner that has the tree gtree as local tree, find the next smaller 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 smaller rank than current_owner that has gtree as local tree. -1 if non such rank exists.