petsc-3.13.6 2020-09-29
Report Typos and Errors

AOApplicationToPetscIS

 Maps an index set in the Section 1.5 Writing Application Codes with PETSc-defined ordering to the PETSc ordering.

Synopsis

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

Input Parameters

ao - the Section 1.5 Writing Application Codes with PETSc 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
Index of all AO routines
Table of Contents for all manual pages
Index of all manual pages