:orphan:
# SNESPATCH
Solve a nonlinear problem or apply a nonlinear smoother by composing together many nonlinear solvers on (often overlapping) patches 


## References

- **** -*** Peter R. Brune, Matthew G. Knepley, Barry F. Smith, and Xuemin Tu, "Composing Scalable Nonlinear Algebraic Solvers", SIAM Review, 57(4), 2015



## See Also
 `SNESFAS`, `SNESCreate()`, `SNESSetType()`, `SNESType`, `SNES`, `PCPATCH`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/impls/patch/snespatch.c.html#SNESPATCH">src/snes/impls/patch/snespatch.c</A>


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


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