[SciPy-user] Issues building from source on windows (SVN)

[Robert Kern]

Ryan Krauss wrote:
> I've got failures in linalg and weave.  I can live without weave, but
> linalg is pretty important (though I don't need all of its
> capabilities).
> 
> Linalg:
> 
> ======================================================================
> FAIL: check_bicgstab (scipy.linalg.tests.test_iterative.test_iterative_solvers)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "C:\Python25\Lib\site-packages\scipy\linalg\tests\test_iterative.py", lin
> e 61, in check_bicgstab
>     assert norm(dot(self.A, x) - self.b) < 5*self.tol
> AssertionError
> 
> ======================================================================
> FAIL: check_qmr (scipy.linalg.tests.test_iterative.test_iterative_solvers)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "C:\Python25\Lib\site-packages\scipy\linalg\tests\test_iterative.py", lin
> e 69, in check_qmr
>     assert norm(dot(self.A, x) - self.b) < 5*self.tol
> AssertionError
> 
> ----------------------------------------------------------------------
> Ran 253 tests in 0.761s
> 
> FAILED (failures=2)
> Out[18]: <unittest.TextTestRunner object at 0x00363FF0>

If you don't use the iterative solvers, then there is no problem for you.

> Are the older processors not very well supported? 

I don't know where the problem lies, so I couldn't say if this is the case. If
you would like to help us with debugging on your machine after your class, we
might be able to pin it down.

-- 
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