:orphan:
# ISLocalToGlobalMappingSetFromOptions
Set mapping options from the options database. 
## Synopsis
```
#include "petscis.h"  
PetscErrorCode ISLocalToGlobalMappingSetFromOptions(ISLocalToGlobalMapping mapping)
```
Not Collective


## Input Parameter

- ***mapping -*** mapping data structure



## Options Database Key

- ***-islocaltoglobalmapping_type -*** <basic,hash> nonscalable and scalable versions





## See Also
 [](sec_scatter), `ISLocalToGlobalMapping`, `ISLocalToGlobalMappingDestroy()`, `ISLocalToGlobalMappingCreateIS()`, `ISLocalToGlobalMappingSetFromOptions()`,
`ISLOCALTOGLOBALMAPPINGBASIC`, `ISLOCALTOGLOBALMAPPINGHASH`
`ISLocalToGlobalMappingSetType()`, `ISLocalToGlobalMappingType`

## Level
advanced

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/is/is/tutorials/ex4.c.html">src/vec/is/is/tutorials/ex4.c</A><BR>


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


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