petsc-3.3-p7 2013-05-11

PCMGSetResidual

 Sets the function to be used to calculate the residual on the lth level.

Synopsis

#include "petscksp.h" 
#include "petscpcmg.h"   
PetscErrorCode  PCMGSetResidual(PC pc,PetscInt l,PetscErrorCode (*residual)(Mat,Vec,Vec,Vec),Mat mat)
Logically Collective on PC and Mat

Input Parameters

pc - the multigrid context
l - the level (0 is coarsest) to supply
residual - function used to form residual, if none is provided the previously provide one is used, if no previous one were provided then PCMGDefaultResidual() is used
mat - matrix associated with residual

Keywords

MG, set, multigrid, residual, level

See Also

PCMGDefaultResidual()

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