:orphan: # DMSwarmComputeLocalSize Compute the local number and distribution of particles based upon a density function ## Synopsis ``` #include "petscdmswarm.h" PetscErrorCode DMSwarmComputeLocalSize(DM sw, PetscInt N, PetscProbFunc density) ``` Not Collective ## Input Parameters - ***sw -*** The `DMSWARM` - ***N -*** The target number of particles - ***density -*** The density field for the particle layout, normalized to unity ## Note One particle will be created for each species. ## See Also `DMSWARM`, `DMSwarmComputeLocalSizeFromOptions()` ## Level advanced ## Location src/dm/impls/swarm/swarmpic.c --- [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)