petsc-master 2014-09-18
Report Typos and Errors

KSPSetDM

Sets the DM that may be used by some preconditioners

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPSetDM(KSP ksp,DM dm)
Logically Collective on KSP

Input Parameters

ksp - the preconditioner context
dm - the dm

Notes: If this is used then the KSP will attempt to use the DM to create the matrix and use the routine set with DMKSPSetComputeOperators(). Use KSPSetDMActive(ksp,PETSC_FALSE) to instead use the matrix you've provided with KSPSetOperators().

See Also

KSPGetDM(), KSPSetDMActive(), KSPSetComputeOperators(), KSPSetComputeRHS(), KSPSetComputeInitialGuess(), DMKSPSetComputeOperators(), DMKSPSetComputeRHS(), DMKSPSetComputeInitialGuess()

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

Examples

src/ksp/ksp/examples/tutorials/ex25.c.html
src/ksp/ksp/examples/tutorials/ex28.c.html
src/ksp/ksp/examples/tutorials/ex29.c.html
src/ksp/ksp/examples/tutorials/ex31.c.html
src/ksp/ksp/examples/tutorials/ex32.c.html
src/ksp/ksp/examples/tutorials/ex34.c.html
src/ksp/ksp/examples/tutorials/ex43.c.html
src/ksp/ksp/examples/tutorials/ex45.c.html
src/ksp/ksp/examples/tutorials/ex50.c.html
src/ksp/ksp/examples/tutorials/ex22f.F.html
src/ksp/ksp/examples/tutorials/ex45f.F.html