PCDeflationSetProjectionNullSpaceMat

Set the projection null space matrix (W’*A).

Synopsis

#include "petscksp.h" 
PetscErrorCode PCDeflationSetProjectionNullSpaceMat(PC pc, Mat mat)

Collective

Input Parameters

• pc - preconditioner context

• mat - projection null space matrix

See Also

PCDEFLATION, PCDeflationSetSpace()

Level

developer

Location

src/ksp/pc/impls/deflation/deflation.c

Implementations

PCDeflationSetProjectionNullSpaceMat_Deflation in src/ksp/pc/impls/deflation/deflation.c

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