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# DMSlicedSetBlockFills
Sets the fill pattern in each block for a multi-component problem of the matrix returned by `DMSlicedGetMatrix()`. 
## Synopsis
```
#include "petscdmsliced.h" 
PetscErrorCode DMSlicedSetBlockFills(DM dm, const PetscInt *dfill, const PetscInt *ofill)
```
Logically Collective


## Input Parameters

- ***sliced -*** the `DM` object
- ***dfill -*** the fill pattern in the diagonal block (may be `NULL`, means use dense block)
- ***ofill -*** the fill pattern in the off-diagonal blocks





## Note
This only makes sense for multicomponent problems using scalar matrix formats (AIJ).
See `DMDASetBlockFills()` for example usage.


## See Also
 `DM`, `DMSLICED`, `DMSlicedGetMatrix()`, `DMDASetBlockFills()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/sliced/sliced.c.html#DMSlicedSetBlockFills">src/dm/impls/sliced/sliced.c</A>


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


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