PETSc version 3.15.5
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
Table of Contents for all manual pages
Index of all manual pages