[SciPy-Dev] More scipy.test() failures

Nils Wagner nwagner@iam.uni-stuttgart...
Tue Sep 6 16:51:56 CDT 2011


On Tue, 6 Sep 2011 20:19:10 +0000 (UTC)
  Pauli Virtanen <pav@iki.fi> wrote:
> On Tue, 06 Sep 2011 21:14:28 +0200, Ralf Gommers wrote:
> [clip]
>> The second one I don't see, but it looks like the test 
>>tolerance being
>> slightly too high.
> 
> One would need to bump the tolerance for 'F' by a factor 
>of 5 to make 
> the test pass.
> 
> I'm not sure I'm fully comfortable doing that without 
>looking, as I'm
> not sure whether it's supposed to be more accurate or 
>not. It's single
> precision ok, but the error is ~ 15000*eps; or 
>5*sqrt(eps).
> 
> Maybe it's nevertheless best to just bump the tolerance 
>--- it's not
> probable that this is due to a real bug anywhere in the 
>codebase.
> 
>    ***
> 
> Another BTW: what's the platform, and which BLAS/LAPACK 
>libraries
> are used?
> 
>>> show_config()
atlas_threads_info:
     libraries = ['lapack', 'ptf77blas', 'ptcblas', 
'atlas']
     library_dirs = 
['/home/nwagner/src/ATLAS3.8.2/mybuild/lib']
     define_macros = [('ATLAS_INFO', '"\\"3.8.2\\""')]
     language = f77
     include_dirs = 
['/home/nwagner/src/ATLAS3.8.2/include']
blas_opt_info:
     libraries = ['ptf77blas', 'ptcblas', 'atlas']
     library_dirs = 
['/home/nwagner/src/ATLAS3.8.2/mybuild/lib']
     define_macros = [('ATLAS_INFO', '"\\"3.8.2\\""')]
     language = c
     include_dirs = 
['/home/nwagner/src/ATLAS3.8.2/include']
atlas_blas_threads_info:
     libraries = ['ptf77blas', 'ptcblas', 'atlas']
     library_dirs = 
['/home/nwagner/src/ATLAS3.8.2/mybuild/lib']
     define_macros = [('ATLAS_INFO', '"\\"3.8.2\\""')]
     language = c
     include_dirs = 
['/home/nwagner/src/ATLAS3.8.2/include']
lapack_opt_info:
     libraries = ['lapack', 'ptf77blas', 'ptcblas', 
'atlas']
     library_dirs = 
['/home/nwagner/src/ATLAS3.8.2/mybuild/lib']
     define_macros = [('ATLAS_INFO', '"\\"3.8.2\\""')]
     language = f77
     include_dirs = 
['/home/nwagner/src/ATLAS3.8.2/include']
lapack_mkl_info:
   NOT AVAILABLE
blas_mkl_info:
   NOT AVAILABLE
mkl_info:
   NOT AVAILABLE


Linux linux-mogv 2.6.34.10-0.2-desktop #1 SMP PREEMPT 
2011-07-20 18:48:56 +0200 x86_64 x86_64 x86_64 GNU/Linux

Nils


More information about the SciPy-Dev mailing list