[petsc-users] ML - zero pivot error

[Jed Brown]

On Tue, Jul 17, 2012 at 7:07 AM, Benjamin Sanderse <B.Sanderse at cwi.nl>wrote:

> The two processor case does not reach far enough that ksp_view gives me
> output. The one processor case gives me the output below.
> I also added -mg_levels_pc_factor_shift_type nonzero, but still with the
> same error.
>

-mg_coarse_redundant_pc_factor_shift_type nonzero


Or use -mg_coarse_pc_type svd and forget about it (provided the coarsest
grid is not too big).
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