:orphan:
# PCBDDCGetNeumannBoundariesLocal
Get parallel `IS` for Neumann boundaries (in local ordering)
## Synopsis
```
#include "petscpc.h"
PetscErrorCode PCBDDCGetNeumannBoundariesLocal(PC pc, IS *NeumannBoundaries)
```
Not Collective
## Input Parameter
- ***pc -*** the preconditioning context
## Output Parameter
- ***NeumannBoundaries -*** index set defining the subdomain part of Neumann boundaries
## Note
The `IS` returned could be the same passed in earlier by the user (if provided with `PCBDDCSetNeumannBoundariesLocal()`
or a global-to-local map of the global `IS` (if provided with `PCBDDCSetNeumannBoundaries()`).
In the latter case, the `IS` will be available after `PCSetUp()`.
## See Also
`PCBDDC``PCBDDCSetNeumannBoundaries()`, `PCBDDCSetNeumannBoundariesLocal)`, `PCBDDCGetNeumannBoundaries()`
## Level
intermediate
## Location
src/ksp/pc/impls/bddc/bddc.c
## Implementations
PCBDDCGetNeumannBoundariesLocal_BDDC in src/ksp/pc/impls/bddc/bddc.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/bddc/bddc.c)
[Index of all PC routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)