PCJacobiGetDiagonal#

Returns copy of the diagonal and/or diagonal squareroot Vec

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCJacobiGetDiagonal(PC pc, Vec diagonal, Vec diagonal_sqrt)

Logically Collective

Input Parameter#

  • pc - the preconditioner context

Output Parameters#

  • diagonal - Copy of Vec of the inverted diagonal

  • diagonal_sqrt - Copy of Vec of the inverted square root diagonal

See Also#

KSP: Linear System Solvers, PCJACOBI, PCJacobiSetType()

Level#

developer

Location#

src/ksp/pc/impls/jacobi/jacobi.c

Implementations#

PCJacobiGetDiagonal_Jacobi() in src/ksp/pc/impls/jacobi/jacobi.c

Index of all PC routines
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Index of all manual pages