petsc-3.11.3 2019-06-26
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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

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