[SciPy-user] undefined symbol: slamch_

romain.jacquet.dev@fr... romain.jacquet.dev@fr...
Thu Jun 11 07:40:41 CDT 2009


Hello,

   I'm working on Ubuntu.
   I'm trying to install scipy on a python installation compiled from source:
   - python-2.5.4
   - lapack-3.2.1
   - atlas3.8.3
   - numpy-1.2.0
   - scipy-0.7.1rc2

   Everything is compiled and installed correctly. But it doesn't work:

python  -c "from scipy.interpolate import interpolate"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File
"/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/interpolate/__init__.py",
line 13, in <module>
    from rbf import Rbf
  File
"/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/interpolate/rbf.py",
line 47, in <module>
    from scipy import linalg
  File
"/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/linalg/__init__.py",
line 8, in <module>
    from basic import *
  File
"/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/linalg/basic.py",
line 17, in <module>
    from lapack import get_lapack_funcs
  File
"/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/linalg/lapack.py",
line 17, in <module>
    from scipy.linalg import flapack
ImportError:
/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/linalg/flapack.so:
undefined symbol: slamch_

Ths slamch symbols is located in the lapack library:
strings /tmp/test2/lapack-3.2.1/lapack_LINUX.a |grep slamch_ | wc -l
269

But the ATLAS dynamic library doesn't have slamch_
strings /tmp/test2/ATLAS/install_dir/lib/liblapack.so |grep slamch_ | wc -l
0

The LD_LIBRARY_PATH is fine:

ldd
/tmp/test2/Python-2.5.4/install_dir/lib/python2.5/site-packages/scipy/linalg/flapack.so
        linux-gate.so.1 =>  (0xb7f9f000)
        liblapack.so => /tmp/test2/ATLAS/install_dir/lib/liblapack.so
(0xb7f1c000)
        libptf77blas.so => /tmp/test2/ATLAS/install_dir/lib/libptf77blas.so
(0xb7f00000)
        libptcblas.so => /tmp/test2/ATLAS/install_dir/lib/libptcblas.so
(0xb7ee1000)
        libatlas.so => /tmp/test2/ATLAS/install_dir/lib/libatlas.so (0xb7aa8000)
        libpython2.5.so.1.0 =>
/tmp/test2/Python-2.5.4/install_dir/lib/libpython2.5.so.1.0 (0xb796f000)
        libgfortran.so.2 => /usr/lib/libgfortran.so.2 (0xb78be000)
        libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb7898000)
        libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb788d000)
        libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb773e000)
        libpthread.so.0 => /lib/tls/i686/cmov/libpthread.so.0 (0xb7726000)
        libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0xb7722000)
        libutil.so.1 => /lib/tls/i686/cmov/libutil.so.1 (0xb771d000)
        /lib/ld-linux.so.2 (0xb7fa0000)

So what is the problem? Where the slamch_ must be find?

      Thanks in advance.


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