what is default ordering method

Matthew Knepley knepley at gmail.com
Sat Apr 8 13:42:19 CDT 2006


On 4/8/06, buket at be.itu.edu.tr <buket at be.itu.edu.tr> wrote:
>
> Hi,
>
> I have several questions;
>
> Which ordering method does petsc use by default before matrix
> factorization?


None, but external packages may use a default ordering.

How can I change the restarted value of Gmres(m)?


-ksp_gmres_restart

Is there any parallel overhead when I run petsc program on single
> processor (with mprun -np 1)?


Not normally, since all classes are Seq by default.

   Matt

Thank you,
> Best Regards,
> Buket Benek
>
>
>
>
>


--
"Failure has a thousand explanations. Success doesn't need one" -- Sir Alec
Guiness
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