:orphan:
# PCPatchConstructType
The algorithm used to construct patches for the `PCPATCH` preconditioner 
## Synopsis
```
typedef enum {
  PC_PATCH_STAR,
  PC_PATCH_VANKA,
  PC_PATCH_PARDECOMP,
  PC_PATCH_USER,
  PC_PATCH_PYTHON
} PCPatchConstructType;
```



## See Also
 [](sec_pc), `PCPatchSetConstructType()`, `PCPATCH`, `PC`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscpctypes.h.html#PCPatchConstructType">include/petscpctypes.h</A>


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