-snes_lag_preconditioner LAG where LAG is the number of iterations to lag the factorization.
On Sun, Sep 30, 2012 at 1:14 AM, Gong Ding <gdiso at ustc.edu> wrote: > Hi, > I'd like to try following strategy: > For a nonlinear solver, at the first Newton step, do a complete LU > factorization, and use the factorized matrix as preconditioner matrix in > the following iteration. > > How to implement this in petsc? > > Gong Ding > > > > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120930/093c7997/attachment.html>
