[gentoo-science] blas/lapack status

[Sebastien Fabbro <seb@ist.utl.pt>]

Dear all,

While I have been trying to so some ebuilds depending on blas and
lapack, I collected a number of thoughts regarding their implementation
in Gentoo:

* Gentoo doc:
Mentioned in a year-old post on this list, there is this site:
http://www.gentoo.org/proj/en/desktop/science/blas-lapack.xml
Is it still up to date? It is not referred anywhere on the Gentoo web
sites.

* eselect: although eselect seems the way to go, it not yet fully
functional. As I was working on the mkl ebuild, I found out it is not
possible to add a new blas/lapack implementation without changing the
eselect sources. As an example, mkl-7.2 is supported, but not in
portage, and outdated. Also eselect blas/lapack do not yet provide a
mechanism to show library directories and include directories. Something
like "eselect blas show cflags"? Am I missing something?

* Should we really keep those obsolete packages:
  - sci-libs/atlas: now decomposed as sci-libs/blas-atlas and
sci-libs/lapack-atlas
  - sci-libs/blas: redundant with sci-libs/blas-reference
  - sci-libs/lapack: redundant with sci-libs/lapack-reference

* cblas/clapack: as mentioned in a previous post, at least a
virtual/cblas could help (as well as a cblas-reference) ebuild.

* documentation: shouldn't blas/lapack install man pages and quick
references as well as in Fedora (or may be an app-docs/lapack)?

I am ready to help some devs on those issues if any interested.


Sebastien
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