PETSc version 3.16.6

PCGAMGSetNlevels

Sets the maximum number of levels PCGAMG will use

#include "petscpc.h" 
#include "petscksp.h" 
PetscErrorCode PCGAMGSetNlevels(PC pc, PetscInt n)

Not collective on PC

	pc	- the preconditioner
	n	- the maximum number of levels to use

-pc_mg_levels

intermediate