I think I have this exact situation and don't understand the final answer. Do I need to be concerned with the warning that my clapack and cblas modules are empty? ryan@ubuntu:~$ ldd /usr/lib/python2.4/site-packages/numpy/linalg/lapack_lite.so linux-gate.so.1 => (0xffffe000) liblapack.so.3 => /usr/lib/atlas/sse2/liblapack.so.3 (0xb7945000) libblas.so.3 => /usr/lib/atlas/sse2/libblas.so.3 (0xb73a8000) libg2c.so.0 => /usr/lib/libg2c.so.0 (0xb7381000) libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb735f000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb7355000) libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb7226000) /lib/ld-linux.so.2 (0x80000000) ryan@ubuntu:~$ locate *clapack.so /usr/lib/python2.4/site-packages/scipy/lib/lapack/clapack.so /usr/lib/python2.4/site-packages/scipy/linalg/clapack.so ryan@ubuntu:/usr/lib/python2.4/site-packages/scipy/lib/lapack$ ls -al total 704 drwxr-xr-x 3 root root 4096 2007-03-16 09:50 . drwxr-xr-x 4 root root 4096 2007-03-16 09:50 .. -rwxr-xr-x 1 root root 13022 2007-03-16 09:49 atlas_version.so -rwxr-xr-x 1 root root 103466 2007-03-16 09:49 calc_lwork.so -rwxr-xr-x 1 root root 48398 2007-03-16 09:49 clapack.so -rwxr-xr-x 1 root root 494047 2007-03-16 09:49 flapack.so . . . What does it all mean? Thanks, Ryan On 12/1/06, Robert Kern <robert.kern@gmail.com> wrote:

jrpirone wrote:

...

Hello,

I've installed scipy and numpy from Andrew Straw's repository, all other libraries are from the standard Ubuntu repositories (6.10). When I execute scipy.test(), the following warnings appear:

**************************************************************** WARNING: clapack module is empty ----------- See scipy/INSTALL.txt for troubleshooting. Notes: * If atlas library is not found by numpy/distutils/system_info.py, then scipy uses flapack instead of clapack. ****************************************************************

**************************************************************** WARNING: cblas module is empty ----------- See scipy/INSTALL.txt for troubleshooting. Notes: * If atlas library is not found by numpy/distutils/system_info.py, then scipy uses fblas instead of cblas. ****************************************************************

Running the command: ldd /usr/lib/python2.4/site-packages/numpy/linalg/lapack_lite.so

Gives me: linux-gate.so.1 => (0xffffe000) liblapack.so.3 => /usr/lib/atlas/sse2/liblapack.so.3 (0xb7958000) libblas.so.3 => /usr/lib/atlas/sse2/libblas.so.3 (0xb7387000) libg2c.so.0 => /usr/lib/libg2c.so.0 (0xb735f000) libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb7339000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb732e000) libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb71fa000) /lib/ld-linux.so.2 (0x80000000)

Is there a problem with the libraries I have installed? Should I be worried about these warnings, or am I just being compulsive?

They're not *necessary* but they are nice to have. It demonstrates that scipy was not compiled with ATLAS.

-- 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 _______________________________________________ SciPy-user mailing list SciPy-user@scipy.org http://projects.scipy.org/mailman/listinfo/scipy-user