KSPHPDDMSetDeflationMat

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

Synopsis

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

Input Parameters

• ksp - iterative context

• U - deflation space to be used during KSPSolve()

See Also

KSP: Linear System Solvers, KSPHPDDM, KSPCreate(), KSPType, KSPHPDDMGetDeflationMat()

Level

intermediate

Location

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

Examples

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

Implementations

KSPHPDDMSetDeflationMat_HPDDM() in src/ksp/ksp/impls/hpddm/hpddm.cxx

---

Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages