On 03/15/2013 02:01 PM, Roy Stogner wrote:
>
> On Fri, 15 Mar 2013, Jens Lohne Eftang wrote:
>
>> I suspect I have not set some important solver flags. Any ideas?
>
> I'd start by turning on PETSc's monitor flags ('-ksp_monitor' etc?).
> Endless residual reevaluations suggests to me that the initial
> linear solve converged poorly and didn't give you a descent direction,
> and a subsequent line search is failing to find a reduced nonlinear
> residual.
I get the same behaviour also when I use a direct solver, i.e.,
-ksp_type preonly -pc_type cholesky -pc_factor_mat_solver_package mumps
Jens
> ---
> Roy
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