petsc-3.12.5 2020-03-29
PCMGGetRestriction
Gets the function to be used to restrict dual vectors from level l to l-1.
Synopsis
#include "petscksp.h"
PetscErrorCode PCMGGetRestriction(PC pc,PetscInt l,Mat *mat)
Logically Collective on PC
Input Parameters
| pc | - the multigrid context
|
| l | - the level (0 is coarsest) to supply [Do not supply 0]
|
Output Parameter
mat -the restriction matrix
See Also
PCMGGetInterpolation(), PCMGSetRestriction(), PCMGGetRScale(), PCMGGetInjection()
Level
advanced
Location
src/ksp/pc/impls/mg/mgfunc.c
Examples
src/snes/examples/tutorials/ex12.c.html
Index of all PC routines
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Index of all manual pages