petsc-3.13.6 2020-09-29
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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
Examples
src/ksp/ksp/tutorials/ex29.c.html
src/ksp/ksp/tutorials/ex43.c.html
src/ksp/ksp/tutorials/ex70.c.html
src/ksp/ksp/tutorials/ex73.c.html
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages