:orphan:
# VecSetLocalToGlobalMapping
Sets a local numbering to global numbering used by the routine `VecSetValuesLocal()` to allow users to insert vector entries using a local (per-processor) numbering. 
## Synopsis
```
#include "petscvec.h"   
PetscErrorCode VecSetLocalToGlobalMapping(Vec x, ISLocalToGlobalMapping mapping)
```
Logically Collective


## Input Parameters

- ***x -*** vector
- ***mapping -*** mapping created with `ISLocalToGlobalMappingCreate()` or `ISLocalToGlobalMappingCreateIS()`





## Notes
All vectors obtained with `VecDuplicate()` from this vector inherit the same mapping.

Vectors obtained with `DMCreateGlobaVector()` will often have this attribute attached to the vector so this call is not needed


## See Also
 [](ch_vectors), `Vec`, `VecAssemblyBegin()`, `VecAssemblyEnd()`, `VecSetValues()`, `VecSetValuesLocal()`,
`VecGetLocalToGlobalMapping()`, `VecSetValuesBlockedLocal()`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/ksp/ksp/tutorials/ex71.c.html">src/ksp/ksp/tutorials/ex71.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/vec/tutorials/ex8.c.html">src/vec/vec/tutorials/ex8.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/vec/tutorials/ex8f.F90.html">src/vec/vec/tutorials/ex8f.F90</A><BR>


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


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