Re: [Boost-users] ublas - solving linear systems

From: Tim Robertson (timr_at_[hidden])
Date: 2003-10-15 12:38:09

Sashan,

I can provide you with symmetric matrix diagonalization code written using
uBLAS, if you need something before the LAPACK bindings are complete.  The
code is LGPLed.  Backchannel me for more info.

-Tim Robertson

On Wed, 15 Oct 2003, Kresimir Fresl wrote:

>
>
> sashan wrote:
>
> > I was looking for a way to solve a linear system using ublas and came
> > upon this thread
> >
> > http://article.gmane.org/gmane.comp.lib.boost.user/1632
> >
> > So does this mean I have to decompose my matrix? Can I do it using ublas?
>
> Well ... yes and no ;o)
>
> ublas is BLAS (i.e. Basic Linear Algebra Subroutines) written in C++,
> so it provides (only) elementary vector and matrix operation (scaling,
> addition, matrix/vector and matrix/matrix multiplication etc.).
>
> But we are developing `bindings' library which provides interfaces
> to some Fortran and C numeric libraries, e.g. ATLAS and LAPACK,
> so that they can be used with ublas matrices and vectors.
>
> Current version of `bindings' library (not complete, but IMHO
> useable) can be found in the boost sandbox
>
>     http://tinyurl.com/r1ch
>
> with documentation and examples in
>
>     http://tinyurl.com/r1cv
>
> You can also download complete zip archive from the files section
> of the ublas-dev mailing list
>
>     http://groups.yahoo.com/group/ublas-dev/files/
>
> (I think that you must join the mailing list to access the files:
>
>     ublas-dev-subscribe_at_[hidden] .)
>
> See also
>
>     http://tinyurl.com/r1e7
>     http://tinyurl.com/r1ee
>
> (although some details on the last page are a bit outdated ;o).
>
> Regards,
>
> fres
>
>
>
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