petsc-3.7.3 2016-07-24
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# PCMGSetX

Sets the vector space 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 and Vec

### 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 space

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