# SNESMULTIBLOCK
Multiblock nonlinear solver that can use overlapping or nonoverlapping blocks, organized additively (Jacobi) or multiplicatively (Gauss-Seidel). 


## See Also
 `SNESCreate()`, `SNES`, `SNESSetType()`, `SNESNEWTONLS`, `SNESNEWTONTR`, `SNESNRICHARDSON`, `SNESMultiblockSetType()`,
`PC_COMPOSITE_ADDITIVE`, `PC_COMPOSITE_MULTIPLICATIVE`, `PC_COMPOSITE_SYMMETRIC_MULTIPLICATIVE`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/impls/multiblock/multiblock.c.html#SNESMULTIBLOCK">src/snes/impls/multiblock/multiblock.c</A>


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


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