:orphan:
# DMGetStratumSize
Get the number of points in a label stratum
## Synopsis
```
#include "petscdm.h"
#include "petscdmlabel.h"
#include "petscds.h"
PetscErrorCode DMGetStratumSize(DM dm, const char name[], PetscInt value, PetscInt *size)
```
Not Collective
## Input Parameters
- ***dm -*** The `DM` object
- ***name -*** The label name
- ***value -*** The stratum value
## Output Parameter
- ***size -*** The number of points, also called the stratum size
## See Also
[](ch_dmbase), `DM`, `DMLabelGetStratumSize()`, `DMGetLabelSize()`, `DMGetLabelIds()`
## Level
beginner
## Location
src/dm/interface/dm.c
## Examples
src/ts/tutorials/ex11_sa.c
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[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)