# VecSetLayout
set `PetscLayout` describing vector layout 
## Synopsis
```
#include "petscvec.h"   
PetscErrorCode VecSetLayout(Vec x, PetscLayout map)
```
Not Collective


## Input Parameters

- ***x -*** the vector
- ***map -*** the layout





## Note
It is normally only valid to replace the layout with a layout known to be equivalent.


## See Also
 [](chapter_vectors), `Vec`, `PetscLayout`, `VecGetLayout()`, `VecGetSizes()`, `VecGetOwnershipRange()`, `VecGetOwnershipRanges()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/vec/interface/vector.c.html#VecSetLayout">src/vec/vec/interface/vector.c</A>


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


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