Re: [Pytables-users] PyTables 2.2rc1 released

[Francesc A. <fa...@py...>]

A Monday 07 June 2010 13:22:45 Ivan Vilata i Balaguer escrigué:
> Francesc Alted (2010-05-20 20:28:47 +0200) wrote:
> > [...]
> > I'm happy to announce the first candidate release for PyTables 2.2
> > series. Among the most exciting improvements of this release is the
> > support of threads in several parts of PyTables, namely Blosc and,
> > optionally, Numexpr (which is out of the main distribution now and
> > becomes a requisite).
> >
> > In particular, I'm quite happy of how performs the recent multi-threaded
> > implementation that undergone Blosc in 0.9.  It uses a pool of threads
> > technique in order to reduce thread management to a bare minimum.  When
> > all the tests would be finished, I expect to release Blosc 1.0 very soon
> > now (hopefully before PyTables 2.2 final).
> > [...]
> 
> I've run the heavy test suite from repository version r4463 on an Intel
>  Core 2 Duo running Debian unstable and all tests pass.  Here is the
>  sys-info::
> 
>   PyTables version:  2.2rc2.dev
>   HDF5 version:      1.8.4
>   NumPy version:     1.4.0
>   Numexpr version:   1.3.1 (not using Intel's VML/MKL)
>   Zlib version:      1.2.3.4 (in Python interpreter)
>   LZO version:       2.03 (Apr 30 2008)
>   BZIP2 version:     1.0.5 (10-Dec-2007)
>   Blosc version:     0.9.3 (2010-06-04)
>   Python version:    2.5.4 (r254:67916, Feb 18 2009, 03:00:47) [GCC 4.3.3]
>   Platform:          linux2-x86_64
>   Byte-ordering:     little
> 
> The heavy suite tests from the 2.2rc1 tarball also pass in a G4 running Mac
>  OS X Tiger, but I first had to apply r4453 to fix the issue with barriers
>  during build time.  Sys-info::
> 
>   PyTables version:  2.2rc1
>   HDF5 version:      1.8.4-patch1
>   NumPy version:     1.3.0
>   Numexpr version:   1.3.1 (not using Intel's VML/MKL)
>   Zlib version:      1.2.3
>   LZO version:       2.03 (Apr 30 2008)
>   BZIP2 version:     1.0.5 (10-Dec-2007)
>   Blosc version:     0.9.0 (2010-05-04)
>   Python version:    2.6.4 (r264:75821M, Oct 27 2009, 19:48:32) [GCC 4.0.1
>  (Apple Inc. build 5493)] Platform:          darwin-Power Macintosh
>   Byte-ordering:     big
> 
> Congrats for the new release!

Great Ivan! :-)

Provided that you have a big-endian machine, I'd ask you (or anybody else 
having such a platform) to help me testing the new capability in Blosc 0.9.4 
for being cross-compatible among little/big endian machines.

Could you please run the attached script (blosc_bigendian.py) and send the 
resulting file back to me?  I plan to add this file in the test suite.  Also, 
please send me the output of ``ptdump -vd`` against my attached little-endian 
file (blosc_bigendian.h5).  You will need to update your PyTables trunk local 
repository in your big-endian platform before doing this, of course.

Many thanks!

-- 
Francesc Alted