PCFieldSplitGetIS#
Retrieves the elements for a split as an IS
Synopsis#
#include "petscpc.h"
PetscErrorCode PCFieldSplitGetIS(PC pc, const char splitname[], IS *is)
Logically Collective
Input Parameters#
pc - the preconditioner context
splitname - name of this split
Output Parameter#
is - the index set that defines the elements in this split, or
NULLif the split is not found
See Also#
Solving Block Matrices with PCFIELDSPLIT, PC, PCFieldSplitGetSubKSP(), PCFIELDSPLIT, PCFieldSplitSetIS(), PCFieldSplitGetISByIndex()
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