PETSc version 3.17.5
PCJacobiSetUseAbs
Causes the Jacobi preconditioner to use the absolute values of the diagonal 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 <bool> | - use absolute values
|
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