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 NULL if the split is not found

See Also#

Solving Block Matrices, PC, PCFieldSplitGetSubKSP(), PCFIELDSPLIT, PCFieldSplitSetIS()

Level#

intermediate

Location#

src/ksp/pc/impls/fieldsplit/fieldsplit.c


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