PETSc version 3.16.6

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KSPHPDDMSetDeflationSpace

Sets the deflation space used by Krylov methods with recycling. This space is viewed as a set of vectors stored in a MATDENSE (column major).

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPHPDDMSetDeflationSpace(KSP ksp, Mat U)

Input Parameters

	ksp	- iterative context
	U	- deflation space to be used during KSPSolve()

See Also

KSPCreate(), KSPType (for list of available types), KSPHPDDMGetDeflationSpace()

Level

intermediate

Location

src/ksp/ksp/impls/hpddm/hpddm.cxx

Examples

src/ksp/ksp/tutorials/ex75.c.html
src/ksp/ksp/tutorials/ex75f.F90.html

Implementations

KSPHPDDMSetDeflationSpace_HPDDM in src/ksp/ksp/impls/hpddm/hpddm.cxx

Index of all KSP routines
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Index of all manual pages