:orphan:
# DMCreateDS
Create the discrete systems for the `DM` based upon the fields added to the `DM`
## Synopsis
```
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMCreateDS(DM dm)
```
Collective
## Input Parameter
- ***dm -*** The `DM`
## Options Database Key
- ***-dm_petscds_view -*** View all the `PetscDS` objects in this `DM`
## See Also
[](ch_dmbase), `DM`, `DMSetField`, `DMAddField()`, `DMGetDS()`, `DMGetCellDS()`, `DMGetRegionDS()`, `DMSetRegionDS()`
## Level
intermediate
## Location
src/dm/interface/dm.c
## Examples
src/dm/dt/dualspace/impls/lagrange/tutorials/ex2.c
src/dm/field/tutorials/ex1.c
src/dm/impls/plex/tutorials/ex8.c
src/dm/impls/swarm/tutorials/ex1.c
src/dm/impls/swarm/tutorials/ex1f90.F90
src/snes/tutorials/ex12.c
src/snes/tutorials/ex13.c
src/snes/tutorials/ex17.c
src/snes/tutorials/ex20.c
src/snes/tutorials/ex23.c
src/snes/tutorials/ex24.c
---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/interface/dm.c)
[Index of all DM routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)