petsc-3.8.4 2018-03-24

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