KSPSetDMActive

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

Synopsis

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

Logically Collective

Input Parameters

• ksp - the KSP

• active - one of KSP_DMACTIVE_OPERATOR, KSP_DMACTIVE_RHS, or KSP_DMACTIVE_INITIAL_GUESS

• flg - use the DM

Note

By default KSPSetDM() sets the DM as active.

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

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