PETSc version 3.16.6
PCFieldSplitGetISByIndex
Retrieves the elements for a given index field as an IS
Synopsis
#include "petscpc.h"
PetscErrorCode PCFieldSplitGetISByIndex(PC pc,PetscInt index,IS *is)
Logically Collective on PC
Input Parameters
| pc | - the preconditioner context
|
| index | - index of this split
|
Output Parameter
| is | - the index set that defines the vector elements in this field
|
See Also
PCFieldSplitGetSubKSP(), PCFIELDSPLIT, PCFieldSplitGetIS(), PCFieldSplitSetIS()
Level
intermediate
Location
src/ksp/pc/impls/fieldsplit/fieldsplit.c
Index of all PC routines
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Index of all manual pages