[SciPy-dev] Reason for failures inscipy.test() ?

Nils Wagner wagner.nils at vdi.de
Mon Nov 24 08:58:52 CST 2003


Dear experts, 
 
Can someone reproduce these failures with latest cvs ? 
 
====================================================================== 
FAIL: check_random_complex 
(scipy.linalg.decomp.test_decomp.test_cholesky) 
---------------------------------------------------------------------- 
Traceback (most recent call last): 
  File "/usr/local/lib/python2.3/site-packages/scipy/linalg/tests/
test_decomp.py", line 276, in check_random_complex 
    assert_array_almost_equal(cholesky(a),c) 
  File "/usr/local/lib/python2.3/site-packages/scipy_test/testing.py", line 
592, in assert_array_almost_equal 
    assert alltrue(ravel(reduced)),\ 
AssertionError: 
Arrays are not almost equal: 
 
 
====================================================================== 
FAIL: check_simple_complex 
(scipy.linalg.decomp.test_decomp.test_cholesky) 
---------------------------------------------------------------------- 
Traceback (most recent call last): 
  File "/usr/local/lib/python2.3/site-packages/scipy/linalg/tests/
test_decomp.py", line 250, in check_simple_complex 
    assert_array_almost_equal(cholesky(a),c) 
  File "/usr/local/lib/python2.3/site-packages/scipy_test/testing.py", line 
592, in assert_array_almost_equal 
    assert alltrue(ravel(reduced)),\ 
AssertionError: 
Arrays are not almost equal: 
 
 
---------------------------------------------------------------------- 
Ran 1028 tests in 2.302s 
 
FAILED (failures=2) 
<unittest.TextTestRunner object at 0x41977bcc> 
>>> 
 
I guess these failures are related to ATLAS or gcc, since 
I was able to run scipy.test() on another system without 
any failures. They differ in ATLAS and gcc. 
 
Any idea or hint ? 
 
Nils 
 
ATLAS version 3.4.2 built by root on Fre Sep 12 22:56:10 UTC 2003: 
   UNAME    : Linux linux 2.4.20-4GB-athlon #1 Mon Mar 17 17:56:47 
UTC 2003 i686 unknown unknown GNU/Linux 
   INSTFLG  : 
   MMDEF    : /home/nwagner/mysoftware/ATLAS/CONFIG/ARCHS/
ATHLONSSE1/gcc/gemm 
   ARCHDEF  : /home/nwagner/mysoftware/ATLAS/CONFIG/ARCHS/
ATHLONSSE1/gcc/misc 
   F2CDEFS  : -DAdd__ -DStringSunStyle 
   CACHEEDGE: 131072 
   F77      : /usr/bin/g77, version GNU Fortran (GCC) 3.3 20030226 
(prerelease) (SuSE Linux) 
   F77FLAGS : -O 
   CC       : /usr/bin/gcc, version gcc (GCC) 3.3 20030226 (prerelease) 
(SuSE Linux) 
   CC FLAGS : -fomit-frame-pointer -O3 -funroll-all-loops 
   MCC      : /usr/bin/gcc, version gcc (GCC) 3.3 20030226 (prerelease) 
(SuSE Linux) 
   MCCFLAGS : -fomit-frame-pointer -O 
nwagner at jane:~/cvs/scipy/Lib/linalg> 


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