PCMGResidualDefault#
Default routine to calculate the residual.
Synopsis#
#include "petscksp.h"
PetscErrorCode PCMGResidualDefault(Mat mat, Vec b, Vec x, Vec r)
Collective
Input Parameters#
mat - the matrix
b - the right-hand side
x - the approximate solution
Output Parameter#
r - location to store the residual
See Also#
KSP: Linear System Solvers, PCMG, PCMGSetResidual(), PCMGSetMatResidual()
Level#
developer
Location#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages