petsc-master 2014-09-18
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KSPSetDMActive

Indicates the DM should be used to generate the linear system matrix and right hand side

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPSetDMActive(KSP ksp,PetscBool flg)
Logically Collective on KSP

Input Parameters

ksp - the preconditioner context
flg - use the DM

Notes

By default KSPSetDM() sets the DM as active, call KSPSetDMActive(ksp,PETSC_FALSE); after KSPSetDM(ksp,dm) to not have the KSP object use the DM to generate the matrices.

See Also

KSPGetDM(), KSPSetDM(), SNESSetDM(), KSPSetComputeOperators(), KSPSetComputeRHS(), KSPSetComputeInitialGuess()

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/ex43.c.html