PCMGGetRestriction#
Gets the function to be used to restrict dual (i.e. residual) vectors from level l to l-1.
Synopsis#
#include "petscksp.h"
PetscErrorCode PCMGGetRestriction(PC pc, PetscInt l, Mat *mat)
Logically Collective
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#
KSP: Linear System Solvers, PCMG, PCMGGetInterpolation(), PCMGSetRestriction(), PCMGGetRScale(), PCMGGetInjection()
Level#
advanced
Location#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages