Re: [gentoo-science] blas/lapack stuff

[denis cohen <denis.cohen@gmail.com>]

On Wed, Sep 26, 2012 at 4:09 PM, Sébastien Fabbro <bicatali@gentoo.org> wrote:
> On Wed, Sep 26, 2012 at 4:20 AM, Francois Bissey
> <fbissey@slingshot.co.nz> wrote:
>
>> If Sebastian had pushed it a little bit more we could have had
>> /usr/lib(64)/libblas-reference.so and no libblas whatsoever. Which may
>> be an idea just to catch packages that just do -lblas.
>
> Which I did for ealier versions of {blas,lapack}-reference, it use to
> link to -lrefblas and -lreflapack.
> I'll fix this again.
>
> --
> Sébastien
>


Hello,

I have installed sci-libs/blas-cblas-lapack
and also sci-libs/atlas
as mentioned in an earlier email.
However, I can't eselect which flavor of blas-cblas-lapack to use
because eselect does not find these modules, i.e.

# eselect lapack list
!!! Error: Can't load module lapack
exiting

If I try to emerge eselect-lapack for example I get:

# emerge -vp eselect-lapack

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N     ] app-admin/eselect-lapack-0.1  0 kB
[blocks B      ] app-admin/eselect-lapack ("app-admin/eselect-lapack"
is blocking sci-libs/gsl-1.15-r2, sci-libs/cblas-reference-20110218,
sci-libs/blas-reference-20110418, sci-libs/atlas-3.10.0,
sci-libs/lapack-reference-3.3.1-r1)

Total: 1 package (1 new), Size of downloads: 0 kB
Conflict: 1 block (1 unsatisfied)

 * Error: The above package list contains packages which cannot be
 * installed at the same time on the same system.

  (sci-libs/cblas-reference-20110218::science, installed) pulled in by
    sci-libs/cblas-reference required by @selected

  (app-admin/eselect-lapack-0.1::gentoo, ebuild scheduled for merge)
pulled in by
    eselect-lapack

  (sci-libs/atlas-3.10.0::science, installed) pulled in by
    sci-libs/atlas required by @selected


For more information about Blocked Packages, please refer to the following
section of the Gentoo Linux x86 Handbook (architecture is irrelevant):

http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?full=1#blocked



I'd like to select the right packages. Any help appreciated.

Thanks

Denis