petsc-3.3-p7 2013-05-11

PCMGDefaultResidual

 Default routine to calculate the residual.

Synopsis

#include "petscksp.h" 
#include "petscpcmg.h"   
PetscErrorCode  PCMGDefaultResidual(Mat mat,Vec b,Vec x,Vec r)
Collective on Mat and Vec

Input Parameters

mat - the matrix
b - the right-hand-side
x - the approximate solution

Output Parameter

r -location to store the residual

Keywords

MG, default, multigrid, residual

See Also

PCMGSetResidual()

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