petsc-3.13.6 2020-09-29
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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/tutorials/ex12.c.html

Index of all PC routines
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Index of all manual pages