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# DMPlexIsDistributed
Find out whether this `DM` is distributed, i.e. more than one rank owns some points. 
## Synopsis
```
#include "petscdmplex.h"   
#include "petscdmlabel.h"  
PetscErrorCode DMPlexIsDistributed(DM dm, PetscBool *distributed)
```
Collective


## Input Parameter

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



## Output Parameter

- ***distributed -*** Flag whether the `DM` is distributed





## Notes
This currently finds out whether at least two ranks have any DAG points.
This involves `MPI_Allreduce()` with one integer.
The result is currently not stashed so every call to this routine involves this global communication.


## See Also
 `DMPLEX`, `DMPLEX`, `DMPlexDistribute()`, `DMPlexGetOverlap()`, `DMPlexIsInterpolated()`

## Level
intermediate

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

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/plex/tutorials/ex5.c.html">src/dm/impls/plex/tutorials/ex5.c</A><BR>


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


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