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 with PCFIELDSPLIT, PC, 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