DMMGCreate

Creates a DA based multigrid solver object. This allows one to easily implement MG methods on regular grids.

#include "petscda.h"     
#include "petscsles.h"    
#include "petscmg.h"    
int DMMGCreate(MPI_Comm comm,int nlevels,void *user,DMMG **dmmg)

Collective on MPI_Comm

	comm	- the processors that will share the grids and solution process
	nlevels	- number of multigrid levels
	user	- an optional user context

- the context - Notes: To provide a different user context for each level call DMMGSetUser() after calling this routine