Re: New procedure bicgstab

[Jaroslav Hajek]

On Mon, Dec 22, 2008 at 10:14 AM, R! <address@hidden> wrote:
>
> Hi,
>
> I understand that good preconditioning is very important for procedure like
> bicgstab and cgs which I wrote, so maybe I can now try to write ILU
> procedure for Octave if you find it useful.
>
> But I'm also interested in your opinion about bicgstab now.
>

Certainly it's useful. Not even in the sparse world is every matrix
ill-conditioned.
The Krylov solvers are IMHO an important missing piece in Octave. It's
great someone took up the job. Even not-quite-optimized
implementations are a good take-off.
Having gmres would be great, too.

regards

-- 
RNDr. Jaroslav Hajek
computing expert
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz