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
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
commandPCApplyRichardsonExists() to determine if one does.
Keywords
PC, apply, Richardson
See Also
PCApplyRichardsonExists()
Location: src/pc/interface/precon.c
PC Index
Table of Contents