[SciPy-dev] Reason for failures inscipy.test() ?
Nils Wagner
wagner.nils at vdi.de
Tue Nov 25 08:21:41 EST 2003
-------------------
On Mon, 24 Nov 2003, Nils Wagner wrote:
> Dear experts,
>
> Can someone reproduce these failures with latest cvs ?
>
>
======================================================================
> FAIL: check_random_complex
> (scipy.linalg.decomp.test_decomp.test_cholesky)
> ----------------------------------------------------------------------
>
======================================================================
> FAIL: check_simple_complex
> (scipy.linalg.decomp.test_decomp.test_cholesky)
> ----------------------------------------------------------------------
No, I cannot reproduce these errors under Python 2.1.3, 2.2.3, 2.3.2
when using the recent cvs (only under 2.1 I get few
fitpack,stats,special related errors that you have already reported).
I am currently using
atlas2-sse2 3.2.1ln-11 from sid
Numeric 23.1
gcc 3.3.2
> 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.
This could be the case. What gcc are you using?
> 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
I am not sure but using sse1 might cause less accurate results.
Make sure that your are using the current CVS version of scipy_distutils
that disables sse1 flag when sse2 is available (do your machine have sse2
Run `python scipy_distutils/command/cpuinfo.py`).
I'll later try the other versions of atlas as well.
Pearu
What is the meaning of sse2 ?
nwagner at jane:~/cvs/scipy/scipy_core> python scipy_distutils/command/
cpuinfo.py
CPU information: getNCPUs has_3dnow has_3dnowext has_mmx has_sse
is_AMD is_singleCPU
_________________wagner at jane:~/myoffice> gcc -v
Reading specs from /usr/lib/gcc-lib/i586-suse-linux/3.3.1/specs
Konfiguriert mit: ../configure --enable-threads=posix --prefix=/usr
--with-local-prefix=/usr/local --infodir=/usr/share/info --mandir=/usr/share/man
--libdir=/usr/lib --enable-languages=c,c++,f77,objc,java,ada --disable-checking
--enable-libgcj --with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib
--with-system-zlib --enable-shared --enable-__cxa_atexit i586-suse-linux
Thread model: posix
gcc-Version 3.3.1 (SuSE Linux)
nwagner at jane:~/myoffice>
Nils
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