petsc-3.7.1 2016-05-15
Report Typos and Errors

KSPUnwindPreconditioner

Unwinds the preconditioning in the solution. That is, takes solution to the preconditioned problem and gets the solution to the original problem from it.

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPUnwindPreconditioner(KSP ksp,Vec vsoln,Vec vt1)
Collective on KSP Many br

Input Parameters

ksp - iterative context Many br
vsoln - solution vector Many br
vt1 - temporary work vector Many br

Output Parameter

vsoln -contains solution on output Many br

Notes

If preconditioning either symmetrically or on the right, this routine solves Many brfor the correction to the unpreconditioned problem. If preconditioning on Many brthe left, nothing is done. Many br

Many br

Keywords

KSP, unwind, preconditioner

See Also

KSPSetPCSide()

Level:advanced
Location:
src/ksp/ksp/interface/itres.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages