PCSetDM

Sets the DM that may be used by some preconditioners

Synopsis

#include "petscpc.h" 
PetscErrorCode PCSetDM(PC pc, DM dm)

Logically Collective

Input Parameters

• pc - the preconditioner context

• dm - the DM, can be NULL to remove any current DM

Note

Users generally call KSPSetDM(), SNESSetDM(), or TSSetDM() so this is rarely called directly

Developer Notes

The routines KSP/SNES/TSSetDM() require dm to be non-NULL, but this one can be NULL since all it does is replace the current DM

See Also

KSP: Linear System Solvers, PC, DM, PCGetDM(), KSPSetDM(), KSPGetDM(), SNESSetDM(), TSSetDM()

Level

intermediate

Location

src/ksp/pc/interface/pcset.c

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Index of all PC routines
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Index of all manual pages