#include "petscpc.h" PetscErrorCode PCSPAISetNBSteps(PC pc,int nbsteps1)
pc | - the preconditioner Many br | |
n | - number of steps (default 5) Many br |
Notes: SPAI constructs to approximation to every column of Many brthe exact inverse of A in a series of improvement Many brsteps. The quality of the approximation is determined Many brby epsilon. If an approximation achieving an accuracy Many brof epsilon is not obtained after ns steps, SPAI simply Many bruses the best approximation constructed so far. Many br
Many br
Level:intermediate
Location:src/ksp/pc/impls/spai/ispai.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages