petsc-3.5.4 2015-05-23

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 on MPI_Comm

Input Parameters

	comm	- MPI communicator that is to share AO
	napp	- size of integer arrays
	myapp	- integer array that defines an ordering
	mypetsc	- integer array that defines another ordering (may be NULL to indicate the natural ordering, that is 0,1,2,3,...)

Output Parameter

aoout -the new application ordering

Notes: 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.

Keywords

AO, create

Examples