PCApplyRichardson
Applies several steps of Richardson iteration with the particular preconditioner. This routine is usually used by the Krylov solvers and not the application code directly.
Synopsis
#include "petscsles.h"
int PCApplyRichardson(PC pc,Vec x,Vec y,Vec w,int its)
Collective on PC
Input Parameters
| pc | - the preconditioner context
|
| x | - the initial guess
|
| w | - one work vector
|
| its | - the number of iterations to apply.
|
Output Parameter
y -the solution
Notes
Most preconditioners do not support this function. Use the command
PCApplyRichardsonExists() to determine if one does.
Keywords
PC, apply, Richardson
See Also
PCApplyRichardsonExists()
Level:developer
Location:src/sles/pc/interface/precon.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages