# DMPlexGetMigrationSF
Gets the `PetscSF` for migrating from a parent `DM` into this `DM` 
## Synopsis
```
#include "petscdmplex.h"   
PetscErrorCode DMPlexGetMigrationSF(DM dm, PetscSF *migrationSF)
```
Note Collective


## Input Parameter

- ***dm          -*** The `DM`



## Output Parameter

- ***migrationSF -*** The `PetscSF`





## See Also
 [](chapter_unstructured), `DM`, `DMPLEX`, `PetscSF`, `DMPlexDistribute()`, `DMPlexDistributeField()`, `DMPlexCreateMigrationSF()`, `DMPlexSetMigrationSF`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/plex/plexnatural.c.html#DMPlexGetMigrationSF">src/dm/impls/plex/plexnatural.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/plex/plexnatural.c)


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