PetscSFSetRankOrder

sort multi-points for gathers and scatters by MPI rank order

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFSetRankOrder(PetscSF sf, PetscBool flg)

Logically Collective

Input Parameters

• sf - star forest

• flg - PETSC_TRUE to sort, PETSC_FALSE to skip sorting (false has a lower setup cost, but is non-deterministic)

See Also

PetscSF - an alternative to low-level MPI calls for data communication, PetscSF, PetscSFType, PetscSFGatherBegin(), PetscSFScatterBegin()

Level

advanced

Location

src/vec/is/sf/interface/sf.c

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Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages