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# KSPFETIDPGetInnerBDDC
Gets the `PCBDDC` preconditioner used to set up the `KSPFETIDP` matrix for the Lagrange multipliers 
## Synopsis
```
#include <petscksp.h> 
PetscErrorCode KSPFETIDPGetInnerBDDC(KSP ksp, PC *pc)
```

## Input Parameters

- ***ksp -*** the `KSPFETIDP` Krylov solver
- ***pc -*** the `PCBDDC` preconditioner





## See Also
 [](ch_ksp), `MATIS`, `PCBDDC`, `KSPFETIDPSetInnerBDDC()`, `KSPFETIDPGetInnerKSP()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/impls/fetidp/fetidp.c.html#KSPFETIDPGetInnerBDDC">src/ksp/ksp/impls/fetidp/fetidp.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/impls/fetidp/fetidp.c.html#KSPFETIDPGetInnerBDDC_FETIDP">KSPFETIDPGetInnerBDDC_FETIDP in src/ksp/ksp/impls/fetidp/fetidp.c</A><BR>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/ksp/impls/fetidp/fetidp.c)


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