[SciPy-user] Ubuntu Libraries

Xavier Gnata xavier.gnata@gmail....
Mon Oct 6 18:02:19 CDT 2008


jah wrote:
> Hi,
>
> I was hoping someone could clarify the ubuntu packages and what is 
> actually needed by scipy.
>
> 1) I keep seeing posts about g77 not being required anymore and 
> gfortran preferred.  What is the "official" statement?  In 
> INSTALL.txt, only g77 is mentioned for Ubuntu packages via:  
> """Debian/Ubuntu packages (g77): atlas3-base atlas3-base-dev""".  The 
> only reference to gfortran is with Mac OS X.  Also, in "Optional 
> Packages" debian packages 'gcc g++ g77' are recommened.
>
> 2) The install notes also say that a complete version of LAPACK is 
> required for scipy.  All the ubuntu descriptions say that only a 
> subset of routines from LAPACK are included with ATLAS.  For example, 
> http://packages.ubuntu.com/hardy/libatlas-sse2-dev.  Is this a problem?
>
> 3) It looks like there are two packages:  atlas3-sse2 and 
> libatlas-sse2-dev.  Are both required?  It seems that they refer to 
> different versions of ATLAS.
>
>  http://packages.ubuntu.com/hardy/atlas3-sse2
>  http://packages.ubuntu.com/hardy/libatlas-sse2-dev
>
> On reading http://www.scipy.org/Installing_SciPy/Linux, it seems like 
> I only should need libatlas-sse2-dev.  Correct?
>
> Thanks!

Well it really means that this documentation is not up to date or maybe 
not as accurate as it should be.
I'm trying to clarify that for the ubuntu 8.10 users (release end of 
october).

Xavier


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