(original) (raw)
Hmm,
I just tried this and it took so long on my machine (Athlon64, fc5_x86_64), that I ctrl-c'd out of it. Running ldd on lapack_lite.so shows
libpthread.so.0
=> /lib64/libpthread.so.0 (0x00002aaaaace2000)
libc.so.6 => /lib64/libc.so.6 (0x00002aaaaadfa000)
/lib64/ld-linux-x86-64.so.2 (0x0000555555554000)
So apparently the Atlas library present in /usr/lib64/atlas was not linked in. I built numpy from the svn repository two days ago. I expect JJ's version is linked with atlas 'cause mine sure didn't run in 11 seconds.
Chuck
On 6/10/06, Robert Kern <robert.kern@gmail.com> wrote:
JJ wrote:
> Any ideas on where to look for a speedup? If the
> problem is that it could not locate the atlas
> ibraries, how might I assure that numpy finds the
> atlas libraries. I can recompile and send along the
> results if it would help.
Run ldd(1) on the file lapack_lite.so . It should show you what dynamic
libraries it is linked against.
> PS. I first sent this to the scipy mailing list, but
> it didnt seem to make it there.
That's okay. This is actually the right place. All of the functions you used are
numpy functions, not scipy.
--
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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