From: walter_at_[hidden]
Date: 2001-11-13 17:23:33
--- In boost_at_y..., Toon Knapen <toon.knapen_at_s...> wrote:
> walter_at_g... wrote:
>
> > --- In boost_at_y..., Toon Knapen <toon.knapen_at_s...> wrote:
> >
> > ublas is somewhat scattered in the CVS (branch
matrix_development).
> > You'll find the odds at:
>
> [snip]
>
> but e.g. the includes in the header of test1 refer to "../config.h"
> which seems incompatible with the directory structure you use in
boost
> IMO : There is no subdirectory in the directory where config.h is
> located ? (I figure you use some other file-structure layout to
compile
> the tests?).
That's right. We've never changed our first layout.
> Anyway, I'm very interested in using uBlas and could also produce
> Jamfiles if you like to build the tests automatically.
That would be very fine.
> (I would suggest
> moving the ublas on the main branch in that case however as
otherwise
> synchronising with the latest Jam developments might be difficult)
I don't know what impact this might have.
> >
> >>And what is the current status of ublas ?
> >>
> >
> > Rather advanced, w.r.t. Fortran BLAS functionality, I believe ;-
). We
> > are still writing docs and try to tune the kernels...
>
>
> What is the relation to MTL3.0 development in Boost ?
ublas is our contribution to the delevopment of boost.matrix.
> >>Do you use Blas internally for
> >>performance reasons (I checked but could no see any calls to the
> >> blas.h header)
> >>
> >
> > Nope.The template functions in blas.h are used to demonstrate how
to
> > emulate Fortran BLAS (see test2). However, if one needs platform
> > specific tuned BLAS kernels, one could try to partially
specialize
> > these.
>
> I would like to look at making specialisations for using Blas
internally
> (too have the most performant alternative as long as the C++
> implementation is at par with Blas) if it does not collide with the
> roadmap you have in mind.
That would be an interesting chance to get more performance numbers.
BTW, which BLAS kernel do you intend to use?
Regards
Joerg