[SciPy-dev] testresults current trunk

Anne Archibald peridot.faceted@gmail....
Tue Nov 17 15:18:16 CST 2009


2009/11/17  <josef.pktd@gmail.com>:
> On Tue, Nov 17, 2009 at 4:01 PM, Anne Archibald
> <peridot.faceted@gmail.com> wrote:
>> 2009/11/17  <josef.pktd@gmail.com>:
>>> 2 errors 1 failure: anything new or just a consequence of my numpy
>>> test failures ?
>>
>>> ERROR: test_decomp.test_lapack_misaligned(<function solve at 0x01C55AF0>, (array
>>> ([[  1.734e-255,   8.189e-217,   4.025e-178,   1.903e-139,   9.344e-101,
>>> ----------------------------------------------------------------------
>>> Traceback (most recent call last):
>>>  File "c:\programs\python25\lib\site-packages\nose-0.11.1-py2.5.egg\nose\case.p
>>> y", line 183, in runTest
>>>    self.test(*self.arg)
>>>  File "C:\Josef\_progs\Subversion\scipy-trunk_after\trunk\dist\scipy-0.8.0.dev6
>>> 118.win32\Programs\Python25\Lib\site-packages\scipy\linalg\tests\test_decomp.py"
>>> , line 1106, in check_lapack_misaligned
>>>    func(*a,**kwargs)
>>>  File "\Programs\Python25\Lib\site-packages\scipy\linalg\basic.py", line 127, i
>>> n solve
>>>  File "\programs\python25\Lib\site-packages\numpy\lib\function_base.py", line 5
>>> 86, in asarray_chkfinite
>>>    raise ValueError, "array must not contain infs or NaNs"
>>> ValueError: array must not contain infs or NaNs
>>
>> That's weird - what architecture are you running the tests on? On my
>> machine I don't get any NaNs or  infs, but the array is made by
>> reinterpreting a byte array.
>>
>> I'm not quite sure what the best way around this is, since the bug is
>> not always triggered if I supply sensible values.
>
> Windows XP notebook, Intel

64-bit or 32?

> I have several nan errors with the numpy test suite. So this might not
> be a scipy problem if it doesn't happen on other machines. I never had
> any problems with linalg and lapack, so it might be something that the
> test uses.

The test does feed in outrageous values. What LAPACK are you using?

Anne

> Josef
>
>
>>
>> Anne
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