[petsc-users] questions on KSP solver and preconditioning

[Jed Brown]

"Sun, Hui" <hus003 at ucsd.edu> writes:
> The multigrid method does not belong to the Krylov methods so it is
> not there. I'm wondering which option should I specify if I want to
> use multigrid and hence the NonlinearGS smoother?

-snes_type fas (or nonlinear preconditioning).  I'm afraid you're going
 to have to read examples and documentation to learn how to operate the
 nonlinear solvers.
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