DMSwarmProjectGradientFields

Project the gradient of continuum fields on a mesh onto particle fields in a DMSWARM, or the reverse

Synopsis

#include "petscdm.h" 
#include "petscdmda.h" 
#include "petscdmplex.h" 
#include "petscdmswarm.h" 
#include "petscksp.h" 
PetscErrorCode DMSwarmProjectGradientFields(DM sw, DM dm, PetscInt nfields, const char *fieldnames[], Vec fields[], ScatterMode mode)

Collective

Input Parameters

• sw - the DMSWARM

• dm - the continuum DM (a DMPLEX); if NULL the swarm’s cell DM is used

• nfields - the number of fields to project

• fieldnames - the names of the swarm fields to receive (or supply) the gradient

• fields - the corresponding mesh Vec objects

• mode - SCATTER_FORWARD to project mesh field gradients to particles, SCATTER_REVERSE to project particle values back to the mesh

Note

Only DMPLEX cell DMs and single-field projection are currently supported. The swarm field block size must equal the mesh field component count times the coordinate dimension.

See Also

DMSWARM, DMPLEX, DMSwarmProjectFields(), DMSwarmVectorDefineFields(), DMSwarmCreateGlobalVectorFromField()

Level

intermediate

Location

src/ksp/ksp/utils/dm/dmproject.c

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Index of all DM routines
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Index of all manual pages