[Numpy-discussion] problem with scipy's test

Ralf Gommers ralf.gommers@gmail....
Sat Sep 8 11:37:35 CDT 2012


On Wed, Sep 5, 2012 at 6:57 PM, 心如烛光 <275438859@qq.com> wrote:

> Hi,every body.
>     I encounter the error while the scipy is testing .
>     I wanna know why and how to fix it.(OSX lion 10.7.4)
>     here is part of the respond:
>

See
http://thread.gmane.org/gmane.comp.python.scientific.devel/15289/focus=15297
Seems hard to fix. Using gfortran 4.4 is a workaround.

Ralf


>
> AssertionError:
> Not equal to tolerance rtol=4.44089e-13, atol=4.44089e-13
> error for eigsh:general, typ=d, which=SA, sigma=0.5, mattype=asarray,
> OPpart=None, mode=buckling
> (mismatch 100.0%)
>  x: array([[ 15.86892331,   0.0549568 ],
>        [ 14.15864153,   0.31381369],
>        [ 10.99691307,   0.37543458],...
>  y: array([[ 3.19549052,  0.0549568 ],
>        [ 2.79856422,  0.31381369],
>        [ 1.67526354,  0.37543458],...
>
> ======================================================================
> FAIL: test_arpack.test_symmetric_modes(True, <gen-symmetric>, 'd', 2,
> 'SA', None, 0.5, <function asarray at 0x10f5c2b90>, None, 'cayley')
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File
> "/Library/Python/2.7/site-packages/nose-1.1.2-py2.7.egg/nose/case.py", line
> 197, in runTest
>     self.test(*self.arg)
>   File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py",
> line 249, in eval_evec
>     assert_allclose(LHS, RHS, rtol=rtol, atol=atol, err_msg=err)
>   File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
> line 1178, in assert_allclose
>     verbose=verbose, header=header)
>   File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/testing/utils.py",
> line 644, in assert_array_compare
>     raise AssertionError(msg)
> AssertionError:
> Not equal to tolerance rtol=4.44089e-13, atol=4.44089e-13
> error for eigsh:general, typ=d, which=SA, sigma=0.5, mattype=asarray,
> OPpart=None, mode=cayley
> (mismatch 100.0%)
>  x: array([[-0.36892684, -0.01935691],
>        [-0.26850996, -0.11053158],
>        [-0.40976156, -0.13223572],...
>  y: array([[-0.43633077, -0.01935691],
>        [-0.25161386, -0.11053158],
>        [-0.36756684, -0.13223572],...
>
> ----------------------------------------------------------------------
> Ran 5501 tests in 56.993s
>
> FAILED (KNOWNFAIL=13, SKIP=42, failures=76)
> <nose.result.TextTestResult run=5501 errors=0 failures=76>
>
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