PCMGSetR

Sets the vector to be used to store the residual on a particular level.

Synopsis

#include "petscksp.h" 
PetscErrorCode  PCMGSetR(PC pc,PetscInt l,Vec c)
Logically Collective on PC

Input Parameters

pc - the multigrid context
l - the level (0 is coarsest) this is to be used for
c - the Vec

Level: advanced

Notes

If this is not provided PETSc will automatically generate one. You do not need to keep a reference to this vector if you do not need it. PCDestroy() will properly free it.

Keywords

MG, multigrid, set, residual, level

See Also

PCMGSetRhs(), PCMGSetX()

Location:mgfunc.c