:orphan:
# PCBDDCSetPrimalVerticesIS
Set additional user defined primal vertices in `PCBDDC`
## Synopsis
```
#include "petscpc.h"
PetscErrorCode PCBDDCSetPrimalVerticesIS(PC pc, IS PrimalVertices)
```
Collective
## Input Parameters
- ***pc -*** the preconditioning context
- ***PrimalVertices -*** index set of primal vertices in global numbering (can be empty)
## Note
Any process can list any global node
## See Also
`PCBDDC`, `PCBDDCGetPrimalVerticesIS()`, `PCBDDCSetPrimalVerticesLocalIS()`, `PCBDDCGetPrimalVerticesLocalIS()`
## Level
intermediate
## Location
src/ksp/pc/impls/bddc/bddc.c
## Implementations
PCBDDCSetPrimalVerticesIS_BDDC in src/ksp/pc/impls/bddc/bddc.c
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