petsc-3.14.6 2021-03-30
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PCJacobiSetUseAbs

 Causes the Jacobi preconditioner to use the absolute values of the digonal divisors in the preconditioner

Synopsis

#include "petscpc.h" 
PetscErrorCode  PCJacobiSetUseAbs(PC pc,PetscBool flg)
Logically Collective on PC

Input Parameters

pc - the preconditioner context
flg - whether to use absolute values or not

Options Database Key

-pc_jacobi_abs

Notes

This takes affect at the next construction of the preconditioner

See Also

PCJacobiaSetType(), PCJacobiGetUseAbs()

Level

intermediate

Location

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

Implementations

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

Index of all PC routines
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Index of all manual pages