# PCHPDDMCoarseCorrectionType
Type of coarse correction used by `PCHPDDM` 
## Synopsis
```
typedef enum {
  PC_HPDDM_COARSE_CORRECTION_DEFLATED,
  PC_HPDDM_COARSE_CORRECTION_ADDITIVE,
  PC_HPDDM_COARSE_CORRECTION_BALANCED
} PCHPDDMCoarseCorrectionType;
```



## Values

- ***`PC_HPDDM_COARSE_CORRECTION_DEFLATED` (default) -*** eq. (1) in `PCHPDDMShellApply()`
- ***`PC_HPDDM_COARSE_CORRECTION_ADDITIVE` -*** eq. (2)
- ***`PC_HPDDM_COARSE_CORRECTION_BALANCED` -*** eq. (3)



## See Also
 [](sec_pc), `PCHPDDM`, `PC`, `PCSetType()`, `PCHPDDMShellApply()`

## Level
intermediate

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


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/include/petscpctypes.h)


[Index of all PC routines](index.md)  
[Table of Contents for all manual pages](/docs/manualpages/index.md)  
[Index of all manual pages](/docs/manualpages/singleindex.md)  
