PETSc version 3.16.6

DMSwarmVectorDefineField

Sets the field from which to define a Vec object when DMCreateLocalVector(), or DMCreateGlobalVector() is called

#include "petscdmswarm.h"   
PetscErrorCode DMSwarmVectorDefineField(DM dm,const char fieldname[])

Collective on dm

	dm	- a DMSwarm
	fieldname	- the textual name given to a registered field

The field with name fieldname must be defined as having a data type of PetscScalar.

This function must be called prior to calling DMCreateLocalVector(), DMCreateGlobalVector(). Mutiple calls to DMSwarmVectorDefineField() are permitted.

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