petsc-3.7.7 2017-09-25
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/ex65.c.html
src/ksp/ksp/examples/tutorials/ex22f.F.html