PCFieldSplitSchurPrecondition

Indicates if the Schur complement is preconditioned by a preconditioner constructed by the D matrix. Otherwise no preconditioner is used.

Synopsis

#include "petscpc.h" 
PetscErrorCode PETSCKSP_DLLEXPORT PCFieldSplitSchurPrecondition(PC pc,PetscTruth flg)
Collective on PC

Input Parameters

pc - the preconditioner context
flg - build the preconditioner

Options Database

-pc_fieldsplit_schur_precondition <true,false> default is true -

Notes: What should we do if the user wants to provide a different matrix (like a mass matrix) to use to build the preconditioner

See Also

PCFieldSplitGetSubKSP(), PCFIELDSPLIT, PCFieldSplitSetFields(), PCFIELDSPLIT

Level:intermediate
Location:
src/ksp/pc/impls/fieldsplit/fieldsplit.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages