petsc-3.7.7 2017-09-25

PCReset

Resets a PC context to the pcsetupcalled = 0 state and removes any allocated Vecs and Mats

#include "petscksp.h" 
PetscErrorCode  PCReset(PC pc)

Collective on PC

pc -the preconditioner context

Notes: This allows a PC to be reused for a different sized linear system but using the same options that have been previously set in the PC

PC, destroy