[petsc-users] Erro in solution

[Danesh Daroui]

Hi,

No I didn't put "no-debugging" when I compiled. I will re-compile it. I
am solving a set of Maxwell equations in integral form. I know that my
coefficient matrix has a large condition number too. Would you please
explain more about "-ksp_view" and "-log_summary"? How can I use these
options? I think the problem is deeper than some sort of compilation
flags. Can I get number of iterations and know whether the solution has
converged or not? In my case, the slow convergence can be due to badly
conditioned matrices. I expected to use default preconditioner which
should ILU I guess.

Regards,

Danesh



On Mon, 2011-05-09 at 18:22 +0200, Jed Brown wrote:
> On Mon, May 9, 2011 at 18:02, Danesh Daroui <danesh.daroui at ltu.se>
> wrote:
>         it
>         shouldn't be that slow! Am I right or I am missing something?
> 
> What equations are you solving? Did you build PETSc
> --with-debugging=0? Run with -ksp_view -log_summary and send the
> output.