:orphan:
# PCASMSetType
Sets the type of restriction and interpolation used for local problems in the additive Schwarz method, `PCASM`.
## Synopsis
```
#include "petscpc.h"
PetscErrorCode PCASMSetType(PC pc, PCASMType type)
```
Logically Collective
## Input Parameters
- ***pc -*** the preconditioner context
- ***type -*** variant of `PCASM`, one of
```none
PC_ASM_BASIC - full interpolation and restriction
PC_ASM_RESTRICT - full restriction, local processor interpolation (default)
PC_ASM_INTERPOLATE - full interpolation, local processor restriction
PC_ASM_NONE - local processor restriction and interpolation
```
## Options Database Key
- ***-pc_asm_type [basic,restrict,interpolate,none] -*** Sets `PCASMType`
## Note
if the is_local arguments are passed to `PCASMSetLocalSubdomains()` then they are used when `PC_ASM_RESTRICT` has been selected
to limit the local processor interpolation
## See Also
`PCASM`, `PCASMSetTotalSubdomains()`, `PCASMSetTotalSubdomains()`, `PCASMGetSubKSP()`,
`PCASMCreateSubdomains2D()`, `PCASMType`, `PCASMSetLocalType()`, `PCASMGetLocalType()`, `PCGASM`
## Level
intermediate
## Location
src/ksp/pc/impls/asm/asm.c
## Implementations
PCASMSetType_ASM in src/ksp/pc/impls/asm/asm.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/ksp/pc/impls/asm/asm.c)
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