petsc-master 2019-09-17
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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