Re: compound operators - what next?

[Jaroslav Hajek]

On Tue, May 20, 2008 at 7:31 AM, Jaroslav Hajek <address@hidden> wrote:
> On Mon, May 19, 2008 at 11:09 PM, dbateman <address@hidden> wrote:
>
> I'll implement special multiplication for sparse matrices marked as
> diagonal and permuted diagonal.
>

Hmm - now that I think of it, I doubt that it's really worth the
effort. Row or column scaling is seldom a bottleneck (unlike general
sparse*full multiply, which often is), so I guess I can be happy with
the general algorithm and simply use spdiags instead of diag when
coding. Funny how the issue just went away...

Since I have no more good ideas for compound operators, I would claim
the work as complete.

cheers

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