# DMPlexCreateProcessSF
Create an `PetscSF` which just has process connectivity 
## Synopsis
```
#include "petscdmplex.h"   
PetscErrorCode DMPlexCreateProcessSF(DM dm, PetscSF sfPoint, IS *processRanks, PetscSF *sfProcess)
```
Collective on dm


## Input Parameters

- ***dm      -*** The `DM`
- ***sfPoint -*** The `PetscSF` which encodes point connectivity



## Output Parameters

- ***processRanks -*** A list of process neighbors, or NULL
- ***sfProcess    -*** An `PetscSF` encoding the process connectivity, or NULL





## See Also
 [](chapter_unstructured), `DM`, `DMPLEX`, `PetscSF`, `PetscSFCreate()`, `DMPlexCreateTwoSidedProcessSF()`

## Level
developer

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


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