AOApplicationToPetscIS#

Maps an index set in the application-defined ordering to the PETSc ordering.

Synopsis#

#include "petscao.h" 
PetscErrorCode AOApplicationToPetscIS(AO ao, IS is)

Collective on AO

Input Parameters#

  • ao - the application ordering context

  • is - the index set; this is replaced with its mapped values

Output Parameter#

  • is - the mapped index set

Note#

The index set cannot be of type stride or block

Any integers in ia[] that are negative are left unchanged. This allows one to convert, for example, neighbor lists that use negative entries to indicate nonexistent neighbors due to boundary conditions, etc.

See Also#

AOCreateBasic(), AOView(), AOPetscToApplication(), AOPetscToApplicationIS(), AOApplicationToPetsc()

Level#

beginner

Location#

src/vec/is/ao/interface/ao.c


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