:orphan:
# DMSwarmComputeLocalSizeFromOptions
Compute the local number and distribution of particles based upon a density function determined by options 
## Synopsis
```
#include "petscdmswarm.h"   
PetscErrorCode DMSwarmComputeLocalSizeFromOptions(DM sw)
```
Not Collective


## Input Parameter

- ***sw -*** The `DMSWARM`





## See Also
 `DMSWARM`, `DMSwarmComputeLocalSize()`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/impls/swarm/swarmpic.c.html#DMSwarmComputeLocalSizeFromOptions">src/dm/impls/swarm/swarmpic.c</A>


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


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