PCGetReusePreconditioner#

Determines if the PC reuses the current preconditioner even if the operator in the preconditioner has changed.

Synopsis#

#include "petscksp.h" 
PetscErrorCode PCGetReusePreconditioner(PC pc, PetscBool *flag)

Not Collective

Input Parameter#

pc - the preconditioner context

Output Parameter#

flag - PETSC_TRUE do not compute a new preconditioner, PETSC_FALSE do compute a new preconditioner

See Also#

KSP: Linear System Solvers, PC, PCGetOperators(), MatZeroEntries(), PCSetReusePreconditioner()

Level#

intermediate

Location#

src/ksp/pc/interface/precon.c

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