AOCreateBasic#
Creates a basic application ordering using two integer arrays.
Synopsis#
#include "petscao.h"
PetscErrorCode AOCreateBasic(MPI_Comm comm, PetscInt napp, const PetscInt myapp[], const PetscInt mypetsc[], AO *aoout)
Collective
Input Parameters#
comm - MPI communicator that is to share
AOnapp - size of
myappandmypetscmyapp - integer array that defines an ordering
mypetsc - integer array that defines another ordering (may be
NULLto indicate the natural ordering, that is 0,1,2,3,…)
Output Parameter#
aoout - the new application ordering
Note#
The arrays myapp and mypetsc must contain the all the integers 0 to napp-1 with no duplicates; that is there cannot be any “holes”
in the indices. Use AOCreateMapping() or AOCreateMappingIS() if you wish to have “holes” in the indices.
See Also#
Application Orderings, Low-level Vector Communication, AO, AOCreateBasicIS(), AODestroy(), AOPetscToApplication(), AOApplicationToPetsc()
Level#
beginner
Location#
src/vec/is/ao/impls/basic/aobasic.c
Index of all AO routines
Table of Contents for all manual pages
Index of all manual pages