petsc-3.13.6 2020-09-29
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AOPetscToApplicationIS

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

Synopsis

#include "petscao.h" 
PetscErrorCode  AOPetscToApplicationIS(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

Notes

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(),AOApplicationToPetsc(),
AOApplicationToPetscIS(),AOPetscToApplication()

Level

intermediate

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