PCFieldSplitGetDetectSaddlePoint

Returns flag indicating whether PCFIELDSPLIT will attempt to automatically determine fields based on zero diagonal entries.

Synopsis

#include "petscpc.h" 
PetscErrorCode PCFieldSplitGetDetectSaddlePoint(PC pc, PetscBool *flg)

Logically Collective

Input Parameter

• pc - the preconditioner context

Output Parameter

• flg - boolean indicating whether to detect fields or not

See Also

Solving Block Matrices, PC, PCFIELDSPLIT, PCFieldSplitSetDetectSaddlePoint()

Level

Intermediate

Location

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

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