PCFieldSplitSetSchurScale#
Controls the sign flip of S for PC_FIELDSPLIT_SCHUR_FACT_DIAG.
Synopsis#
#include "petscpc.h"
PetscErrorCode PCFieldSplitSetSchurScale(PC pc, PetscScalar scale)
Collective
Input Parameters#
pc - the preconditioner context
scale - scaling factor for the Schur complement
Options Database Key#
-pc_fieldsplit_schur_scale
- default is -1.0
See Also#
Solving Block Matrices with PCFIELDSPLIT, PC, PCFIELDSPLIT, PCFieldSplitSetFields(), PCFieldSplitSchurFactType, PCFieldSplitSetSchurFactType()
Level#
intermediate
Location#
Implementations#
PCFieldSplitSetSchurScale_FieldSplit() in src/ksp/pc/impls/fieldsplit/fieldsplit.c
Index of all PC routines
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Index of all manual pages