# PetscLayoutGetRange
gets the range of values owned by this process 
## Synopsis
```
#include "petscis.h" 
PetscErrorCode PetscLayoutGetRange(PetscLayout map, PetscInt *rstart, PetscInt *rend)
```
Not Collective


## Input Parameter

- ***map -*** pointer to the map



## Output Parameters

- ***rstart -*** first index owned by this process
- ***rend   -*** one more than the last index owned by this process





## Note
Call this after the call to `PetscLayoutSetUp()`


## See Also
 [PetscLayout](sec_matlayout), `PetscLayoutCreate()`, `PetscLayoutSetLocalSize()`, `PetscLayoutGetLocalSize()`, `PetscLayoutSetSize()`,
`PetscLayoutGetSize()`, `PetscLayoutGetRanges()`, `PetscLayoutSetBlockSize()`, `PetscLayoutGetSize()`, `PetscLayoutSetUp()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/is/utils/pmap.c.html#PetscLayoutGetRange">src/vec/is/utils/pmap.c</A>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/vec/is/utils/pmap.c)


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