PCDeflationSetInitOnly#
Do only initialization step. Sets initial guess to the solution on the deflation space but does not apply the deflation preconditioner. The additional preconditioner is still applied.
Synopsis#
#include "petscksp.h"
PetscErrorCode PCDeflationSetInitOnly(PC pc, PetscBool flg)
Logically Collective
Input Parameters#
pc - the preconditioner context
flg - default
PETSC_FALSE
Options Database Key#
-pc_deflation_init_only
- if true computes only the special guess
See Also#
Level#
intermediate
Location#
Implementations#
PCDeflationSetInitOnly_Deflation() in src/ksp/pc/impls/deflation/deflation.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages