[SciPy-User] scipy installation error: fblas.so: undefined symbol: s_stop

Ed Sexton sextonhadoop@gmail....
Thu Oct 4 18:52:32 CDT 2012


Dear Scipy Users-

I am trying to compile from source scipy (with lapack and blas) and numpy -
but when executing scipy.test() I receive "undefined symbol: s_stop" errors
on fblas.so:

Could someone please advise if I have an incompatibility with a compiler or
software version?

I am stuck using "Red Hat Enterprise Linux Server release 6.3".  Once I
have this working on one system, my next task is to roll this out to 600
more servers.  Your help would be GREATLY appreciated with helping me
overcome this error.

*ERROR*:
Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/lib/blas/fblas.so: undefined
symbol: s_stop)


*SOFTWARE VERSIONS*:
numpy-1.6.2
scipy-0.11.0
blas
lapack-3.4.2
scikit-learn-0.12


*SYSTEM ENVIRONMENT*:
# python -c 'from numpy.f2py.diagnose import run; run()'
------
os.name='posix'
------
sys.platform='linux2'
------
sys.version:
2.6.6 (r266:84292, May  1 2012, 13:52:17)
[GCC 4.4.6 20110731 (Red Hat 4.4.6-3)]
------
sys.prefix:
/usr
------
sys.path=':/usr/lib64/python26.zip:/usr/lib64/python2.6:/usr/lib64/python2.6/plat-linux2:/usr/lib64/python2.6/lib-tk:/usr/lib64/python2.6/lib-old:/usr/lib64/python2.6/lib-dynload:/usr/lib64/python2.6/site-packages:/usr/lib64/python2.6/site-packages/gtk-2.0:/usr/lib/python2.6/site-packages'
------
Found new numpy version '1.6.2' in
/usr/lib64/python2.6/site-packages/numpy/__init__.pyc
Found f2py2e version '2' in
/usr/lib64/python2.6/site-packages/numpy/f2py/f2py2e.pyc
Found numpy.distutils version '0.4.0' in
'/usr/lib64/python2.6/site-packages/numpy/distutils/__init__.pyc'
------
Importing numpy.distutils.fcompiler ... ok
------
Checking availability of supported Fortran compilers:
GnuFCompiler instance properties:
  archiver        = ['/usr/bin/g77', '-cr']
  compile_switch  = '-c'
  compiler_f77    = ['/usr/bin/g77', '-g', '-Wall', '-fno-second-
                    underscore', '-fPIC', '-O3', '-funroll-loops']
  compiler_f90    = None
  compiler_fix    = None
  libraries       = ['g2c']
  library_dirs    = []
  linker_exe      = ['/usr/bin/g77', '-g', '-Wall', '-g', '-Wall']
  linker_so       = ['/usr/bin/g77', '-g', '-Wall', '-g', '-Wall', '-
                    shared']
  object_switch   = '-o '
  ranlib          = ['/usr/bin/g77']
  version         = LooseVersion ('3.4.6')
  version_cmd     = ['/usr/bin/g77', '--version']
Gnu95FCompiler instance properties:
  archiver        = ['/usr/bin/gfortran', '-cr']
  compile_switch  = '-c'
  compiler_f77    = ['/usr/bin/gfortran', '-Wall', '-ffixed-form', '-fno-
                    second-underscore', '-fPIC', '-O3', '-funroll-loops']
  compiler_f90    = ['/usr/bin/gfortran', '-Wall', '-fno-second-underscore',
                    '-fPIC', '-O3', '-funroll-loops']
  compiler_fix    = ['/usr/bin/gfortran', '-Wall', '-ffixed-form', '-fno-
                    second-underscore', '-Wall', '-fno-second-underscore',
'-
                    fPIC', '-O3', '-funroll-loops']
  libraries       = ['gfortran']
  library_dirs    = []
  linker_exe      = ['/usr/bin/gfortran', '-Wall', '-Wall']
  linker_so       = ['/usr/bin/gfortran', '-Wall', '-Wall', '-shared']
  object_switch   = '-o '
  ranlib          = ['/usr/bin/gfortran']
  version         = LooseVersion ('4.4.6')
  version_cmd     = ['/usr/bin/gfortran', '--version']
Fortran compilers found:
  --fcompiler=gnu    GNU Fortran 77 compiler (3.4.6)
  --fcompiler=gnu95  GNU Fortran 95 compiler (4.4.6)
Compilers available for this platform, but not found:
  --fcompiler=absoft   Absoft Corp Fortran Compiler
  --fcompiler=compaq   Compaq Fortran Compiler
  --fcompiler=g95      G95 Fortran Compiler
  --fcompiler=intel    Intel Fortran Compiler for 32-bit apps
  --fcompiler=intele   Intel Fortran Compiler for Itanium apps
  --fcompiler=intelem  Intel Fortran Compiler for 64-bit apps
  --fcompiler=lahey    Lahey/Fujitsu Fortran 95 Compiler
  --fcompiler=nag      NAGWare Fortran 95 Compiler
  --fcompiler=pathf95  PathScale Fortran Compiler
  --fcompiler=pg       Portland Group Fortran Compiler
  --fcompiler=vast     Pacific-Sierra Research Fortran 90 Compiler
Compilers not available on this platform:
  --fcompiler=hpux      HP Fortran 90 Compiler
  --fcompiler=ibm       IBM XL Fortran Compiler
  --fcompiler=intelev   Intel Visual Fortran Compiler for Itanium apps
  --fcompiler=intelv    Intel Visual Fortran Compiler for 32-bit apps
  --fcompiler=intelvem  Intel Visual Fortran Compiler for 64-bit apps
  --fcompiler=mips      MIPSpro Fortran Compiler
  --fcompiler=none      Fake Fortran compiler
  --fcompiler=sun       Sun or Forte Fortran 95 Compiler
For compiler details, run 'config_fc --verbose' setup command.
------
Importing numpy.distutils.cpuinfo ... ok
------
CPU information: CPUInfoBase__get_nbits getNCPUs has_mmx has_sse has_sse2
has_sse3 has_ssse3 is_64bit is_Intel is_XEON is_Xeon is_i686 ------



Sincerely,
Ed Sexton / PayPal




*ERROR*:



python
Python 2.6.6 (r266:84292, May  1 2012, 13:52:17)
[GCC 4.4.6 20110731 (Red Hat 4.4.6-3)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import scipy
>>> scipy.test()
Running unit tests for scipy
NumPy version 1.6.2
NumPy is installed in /usr/lib64/python2.6/site-packages/numpy
SciPy version 0.11.0
SciPy is installed in /usr/lib64/python2.6/site-packages/scipy
Python version 2.6.6 (r266:84292, May  1 2012, 13:52:17) [GCC 4.4.6
20110731 (Red Hat 4.4.6-3)]
nose version 1.2.1
..............................................................................................................................................................................................................................K........................................................................................................K......................E....................................................................................................................................................................................................................................................................................................................................................................................................................................................ESSSSSS...FFFSSSSSS...FFFSSSS....EEE...........SSSSS.K..........S......................................................................................................................................................................................................................................................................................................................................................................................................................................EE........................................................................................EE....................................................................................................................................................................................................................................................................................................................................................................................................K.K.............................................................................................................................................................................................................................................................................................................................................................................................K........K..............SSSSSSS............................E........................................................................................................................................
======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so: undefined
symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/usr/lib64/python2.6/site-packages/scipy/interpolate/__init__.py",
line 154, in <module>
    from rbf import Rbf
  File "/usr/lib64/python2.6/site-packages/scipy/interpolate/rbf.py", line
49, in <module>
    from scipy import linalg
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/lib/blas/fblas.so: undefined
symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/usr/lib64/python2.6/site-packages/scipy/lib/blas/__init__.py",
line 86, in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/lib/blas/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so: undefined
symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: test_common.test_pade_trivial
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File
"/usr/lib64/python2.6/site-packages/scipy/misc/tests/test_common.py", line
9, in test_pade_trivial
    nump, denomp = pade([1.0], 0)
  File "/usr/lib64/python2.6/site-packages/scipy/misc/common.py", line 371,
in pade
    from scipy import linalg
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: test_common.test_pade_4term_exp
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File
"/usr/lib64/python2.6/site-packages/scipy/misc/tests/test_common.py", line
18, in test_pade_4term_exp
    nump, denomp = pade(an, 0)
  File "/usr/lib64/python2.6/site-packages/scipy/misc/common.py", line 371,
in pade
    from scipy import linalg
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so: undefined
symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/usr/lib64/python2.6/site-packages/scipy/optimize/__init__.py",
line 146, in <module>
    from _root import *
  File "/usr/lib64/python2.6/site-packages/scipy/optimize/_root.py", line
17, in <module>
    import nonlin
  File "/usr/lib64/python2.6/site-packages/scipy/optimize/nonlin.py", line
116, in <module>
    from scipy.linalg import norm, solve, inv, qr, svd, lstsq, LinAlgError
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so: undefined
symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/usr/lib64/python2.6/site-packages/scipy/signal/__init__.py", line
218, in <module>
    from cont2discrete import *
  File "/usr/lib64/python2.6/site-packages/scipy/signal/cont2discrete.py",
line 9, in <module>
    from scipy import linalg
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/_iterative.so:
undefined symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/__init__.py", line
90, in <module>
    from isolve import *
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/__init__.py",
line 4, in <module>
    from iterative import *
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/iterative.py",
line 5, in <module>
    import _iterative
ImportError:
/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/_iterative.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/_iterative.so:
undefined symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/tests/test_base.py", line
34, in <module>
    from scipy.sparse.linalg import splu
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/__init__.py", line
90, in <module>
    from isolve import *
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/__init__.py",
line 4, in <module>
    from iterative import *
  File
"/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/iterative.py",
line 5, in <module>
    import _iterative
ImportError:
/usr/lib64/python2.6/site-packages/scipy/sparse/linalg/isolve/_iterative.so:
undefined symbol: s_stop

======================================================================
ERROR: Failure: ImportError
(/usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so: undefined
symbol: s_stop)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "nose/loader.py", line 390, in loadTestsFromName
    addr.filename, addr.module)
  File "nose/importer.py", line 39, in importFromPath
    return self.importFromDir(dir_path, fqname)
  File "nose/importer.py", line 86, in importFromDir
    mod = load_module(part_fqname, fh, filename, desc)
  File "/usr/lib64/python2.6/site-packages/scipy/stats/__init__.py", line
321, in <module>
    from stats import *
  File "/usr/lib64/python2.6/site-packages/scipy/stats/stats.py", line 194,
in <module>
    import scipy.linalg as linalg
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/__init__.py", line
132, in <module>
    from misc import *
  File "/usr/lib64/python2.6/site-packages/scipy/linalg/misc.py", line 3,
in <module>
    import fblas
ImportError: /usr/lib64/python2.6/site-packages/scipy/linalg/fblas.so:
undefined symbol: s_stop

======================================================================
FAIL: test_ssyev (test_esv.TestEsv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/numpy/testing/decorators.py",
line 146, in skipper_func
    return f(*args, **kwargs)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 84, in test_ssyev
    self._test_base('ssyev', 'F')
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 26, in _test_base
    assert_array_almost_equal(w, SYEV_REF, decimal=PREC[tp])
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 5 decimals

(mismatch 100.0%)
 x: array([-1.1349628 ,  2.38857079,  7.74639225], dtype=float32)
 y: array([-0.66992434,  0.48769389,  9.18223045])

======================================================================
FAIL: test_ssyevr (test_esv.TestEsv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/numpy/testing/decorators.py",
line 146, in skipper_func
    return f(*args, **kwargs)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 92, in test_ssyevr
    self._test_base('ssyevr', 'F')
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 26, in _test_base
    assert_array_almost_equal(w, SYEV_REF, decimal=PREC[tp])
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 5 decimals

(mismatch 100.0%)
 x: array([-1.13496113,  2.38857222,  7.74639177], dtype=float32)
 y: array([-0.66992434,  0.48769389,  9.18223045])

======================================================================
FAIL: test_ssyevr_ranges (test_esv.TestEsv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/numpy/testing/decorators.py",
line 146, in skipper_func
    return f(*args, **kwargs)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 100, in test_ssyevr_ranges
    self._test_syevr_ranges('ssyevr', 'F')
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 76, in _test_syevr_ranges
    self._test_base_irange(func, irange, lang)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_esv.py",
line 47, in _test_base_irange
    assert_array_almost_equal(w, SYEV_REF[rslice], decimal=PREC[tp])
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 5 decimals

(mismatch 100.0%)
 x: array([-1.13496113,  2.38857222,  7.74639177], dtype=float32)
 y: array([-0.66992434,  0.48769389,  9.18223045])

======================================================================
FAIL: test_ssygv_1 (test_gesv.TestSygv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/numpy/testing/decorators.py",
line 146, in skipper_func
    return f(*args, **kwargs)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_gesv.py",
line 41, in test_ssygv_1
    self._test_base('ssygv', 'F', 1)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_gesv.py",
line 29, in _test_base
    decimal=PREC[tp])
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 5 decimals

(mismatch 100.0%)
 x: array([ 0.98113459,  0.95912313,  1.87169743], dtype=float32)
 y: array([ -0.00000000e+00,   2.52944849e+17,  -5.80304557e+19],
dtype=float32)

======================================================================
FAIL: test_ssygv_2 (test_gesv.TestSygv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/numpy/testing/decorators.py",
line 146, in skipper_func
    return f(*args, **kwargs)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_gesv.py",
line 45, in test_ssygv_2
    self._test_base('ssygv', 'F', 2)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_gesv.py",
line 32, in _test_base
    decimal=PREC[tp])
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 5 decimals

(mismatch 100.0%)
 x: array([ 0.58952832,  2.39465809,  5.379776  ], dtype=float32)
 y: array([-0.60370338,  1.07345402, -0.36409575], dtype=float32)

======================================================================
FAIL: test_ssygv_3 (test_gesv.TestSygv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib64/python2.6/site-packages/numpy/testing/decorators.py",
line 146, in skipper_func
    return f(*args, **kwargs)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_gesv.py",
line 49, in test_ssygv_3
    self._test_base('ssygv', 'F', 3)
  File
"/usr/lib64/python2.6/site-packages/scipy/lib/lapack/tests/test_gesv.py",
line 35, in _test_base
    w[i]*v[:,i], decimal=PREC[tp] - 1)
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
800, in assert_array_almost_equal
    header=('Arrays are not almost equal to %d decimals' % decimal))
  File "/usr/lib64/python2.6/site-packages/numpy/testing/utils.py", line
636, in assert_array_compare
    raise AssertionError(msg)
AssertionError:
Arrays are not almost equal to 4 decimals

(mismatch 100.0%)
 x: array([  9.9355526 ,   8.03703594,  29.26363754], dtype=float32)
 y: array([ -7.47458363,  10.02687263,  -5.13589382], dtype=float32)

----------------------------------------------------------------------
Ran 2334 tests in 27.363s

FAILED (KNOWNFAIL=7, SKIP=29, errors=10, failures=6)
<nose.result.TextTestResult run=2334 errors=10 failures=6>
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