PETSc version 3.15.5
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 on PC
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 | 
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, solution, level
See Also
 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