PCFieldSplitGetISByIndex#

Retrieves the elements for a given split as an IS

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCFieldSplitGetISByIndex(PC pc, PetscInt index, IS *is)

Logically Collective

Input Parameters#

pc - the preconditioner context
index - index of this split

Output Parameter#

is - the index set that defines the elements in this split

See Also#

Solving Block Matrices, PC, PCFieldSplitGetSubKSP(), PCFIELDSPLIT, PCFieldSplitGetIS(), PCFieldSplitSetIS()

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