Re: Who uses clapack?
From: Bill Shortall (pecos_at_cminet.net)
Date: 12/13/04
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Date: Mon, 13 Dec 2004 07:40:24 -0700
"Tino" <tino52@yahoo.com> wrote in message
news:1102947808.721378.166920@f14g2000cwb.googlegroups.com...
>
> Bill Shortall wrote:
> > "Victor Eijkhout" <see.sig@for.addy> wrote in message
> > news:1gokv1s.16zyrkl1ytczkbN%see.sig@for.addy...
> > > Tino <tino52@yahoo.com> wrote:
> > >
> > > > On a slightly related note, is there any effort (or even thought)
> being
> > > > put into the development of a "standardized" C++ object-oriented
> LAPACK
> > > > library? Something to wrap around the BLAS and LAPACK, perhaps?
> > >
> > > The thought has occurred to many people. I mean, passing LDA into a
> C++
> > > routine is the programming equivalent of turning a crank handle on
> the
> > > space shuttle. Now, what to do about it....
> > >
> > > I've started looking at Sidl/Babel to get a more native looking
> > > interface in other languages than F77. Not sure to what extent that
> will
> > > satisfy you.
> > >
> > > V.
> > > --
> > > email: lastname at cs utk edu
> > > homepage: www cs utk edu tilde lastname
> >
> > Hi Victor,
> >
> > For the last few years I have been working on a
> > set of C++ classes to do linear algebra. I was trying to
> > acheive most of the functionality of Lapack/Blas but
> > in a very user friendly fashion. The classes center
> > arround a general purpose vector class along with a dense rectangular
> Matrix
> > class and then some more compilcated classes like a vector of vectors
> and
> > vector of matrices.
> > All of them use operator overloading so you can write
> > A = B + C * D where A,B,C, D are matrices and all of the
> operators
> > work for both real and complex matrices. Akll of the basic Linear
> algebra
> > functions are supported
> > ie solution of equations, decompositions, SVD eigenvectors etc. etc.
> > The entire library is less than 5000 lines of code
> > and compiles into a static library of ~~ 3 megabytes
> > You don't have to compile it but you will need either a
> > Miccrosoft VC6 or Linux GCC compiler to use it.
> > I have demo version available and if anyone in the group wants to
> play
> > with it and has a compatible compiler send me a line. Once you've
> used it
> > you will never go back to LAPACK
> > pecos@cminet.net
> > regards...Bill
>
> I have also developed a C++ library which acts as nothing more than a
> wrapper for the BLAS/LAPACK or Intel MKL libraries. In my case, I
> claim only to support a subset of the BLAS/LAPACK functionality (though
> it is 100% of the functionality that I use). I also support all of the
> different matrix formats (dense, banded, symmetric), though only in
> double precision (no complex matrices). The reason I was interested in
> a more "official" effort is, that I believe that LAPACK's popularity
> and utility is in its generality and I would welcome a sort of
> standardization of the C++ interface as there seem to be dozens if not
> hundereds of them floating around.
>
> Ryan
Yes...the writers of LAPACK should write a C++
version. After all, they are the experts. It might even
be fun for them !
Bill ............. pecos@cminet.net
>
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