PCMGSetX#

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

Synopsis#

#include "petscksp.h" 
PetscErrorCode PCMGSetX(PC pc, PetscInt l, Vec c)

Logically Collective

Input Parameters#

  • pc - the multigrid context

  • l - the level (0 is coarsest) this is to be used for (do not supply the finest level)

  • c - the Vec

Note#

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.

See Also#

KSP: Linear System Solvers, PCMG, PCMGSetRhs(), PCMGSetR()

Level#

advanced

Location#

src/ksp/pc/impls/mg/mgfunc.c


Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages