KSPSetDMActive

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

Synopsis

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

Logically Collective

Input Parameters

• ksp - the KSP

• flg - use the DM

Note

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

KSP: Linear System Solvers, KSP, DM, KSPGetDM(), KSPSetDM(), SNESSetDM(), KSPSetComputeOperators(), KSPSetComputeRHS(), KSPSetComputeInitialGuess()

Level

intermediate

Location

src/ksp/ksp/interface/iterativ.c

Examples

src/ksp/ksp/tutorials/ex29.c
src/ksp/ksp/tutorials/ex70.c
src/dm/impls/stag/tutorials/ex8.c
src/dm/impls/stag/tutorials/ex4.c
src/ksp/ksp/tutorials/ex73.c
src/ksp/ksp/tutorials/ex43.c

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Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages