[Numpy-discussion] Installing numpy/scipy on CentOS 4
Robert Kern
robert.kern@gmail....
Mon May 12 16:27:44 CDT 2008
On Mon, May 12, 2008 at 3:44 PM, Chris Miller <centos@scratchspace.com> wrote:
> Robert,
> I looked in the build directory from Atlas and it is indeed
> generating the additional libraries. I copied them over to /usr/lib
> and rebuilt the numpy RPM. Indeed the behavior is different, and
> numpy sees the libraries. Of course some new oddities have entered
> the equation. Specifically this :
>
> *********************************************************************
> Lapack library (from ATLAS) is probably incomplete:
> size of /usr/lib/liblapack.so is 3742k (expected >4000k)
>
> Follow the instructions in the KNOWN PROBLEMS section of the file
> numpy/INSTALL.txt.
> *********************************************************************
>
> The INSTALL file is missing :-( I wonder if this is really a problem
> or just the result of stripping the binary (assuming RPM stripped
> it). I rebuilt lapack3 but the binary is still under 4MB. Let me
> know what you think.
Hmm. That text got copied over from scipy without thinking way back in
the day. Anyways, see this:
http://svn.scipy.org/svn/scipy/trunk/INSTALL.txt
Basically, ATLAS only provides a few optimized LAPACK functions. To
get a complete LAPACK, you need a FORTRAN LAPACK built first, then
replace the relevant object files with the ATLAS-optimized versions.
But you're probably correct that it's just symbol stripping.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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