petsc-master 2019-09-20
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PCFieldSplitSetSchurScale

Controls the sign flip of S for PC_FIELDSPLIT_SCHUR_FACT_DIAG.

Synopsis

#include "petscpc.h" 
PetscErrorCode PCFieldSplitSetSchurScale(PC pc,PetscScalar scale)
Collective on PC

Input Parameters

pc - the preconditioner context
scale - scaling factor for the Schur complement

Options Database

-pc_fieldsplit_schur_scale -default is -1.0

See Also

PCFIELDSPLIT, PCFieldSplitSetFields(), PCFieldSplitSchurFactType, PCFieldSplitSetSchurScale()

Level

intermediate

Location

src/ksp/pc/impls/fieldsplit/fieldsplit.c

Implementations

PCFieldSplitSetSchurScale_FieldSplit in src/ksp/pc/impls/fieldsplit/fieldsplit.c

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages