Francesc Alted (el 2010-02-26 a les 13:00:45 +0100) va dir:: > http://pytables.org/moin/ComputingKernel > > On it, I'm using an updated version of the poly.py script that I've attached > on my previous message. So, if anyone is willing to run the script on its > own > machine, please fetch the version attached to the page above instead.
I'm attaching the results for my iBook G4 1.2 GHz 1.25 GiB RAM running Mac OS X 10.4.11 Tiger. :: Ivan Vilata i Balaguer -- http://ivan.lovesgazpacho.net/
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PyTables version: 2.2rc1
HDF5 version: 1.8.4-patch1
NumPy version: 1.3.0
Zlib version: 1.2.3
LZO version: 2.03 (Apr 30 2008)
BZIP2 version: 1.0.5 (10-Dec-2007)
Blosc version: 0.8.0 (2010-02-24)
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
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Total size for datasets: 152.6 MB
Populating x using numpy with 10000000 points...
*** Time elapsed populating: 1.65
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using numpy
**** Time elapsed computing: 9.637
Populating x using numexpr with 10000000 points...
*** Time elapsed populating: 1.743
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using numexpr
**** Time elapsed computing: 1.101
Populating x using numpy.memmap with 10000000 points...
*** Time elapsed populating: 5.503
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using numpy.memmap
Total file sizes: 160000000 -- (152.6 MB)
**** Time elapsed computing: 13.463
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 16.898
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 160137296 -- (152.7 MB)
**** Time elapsed computing: 3.679
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 11.975
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 43015908 -- (41.0 MB) (using zlib lvl1)
**** Time elapsed computing: 13.606
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 23.887
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 39389561 -- (37.6 MB) (using zlib lvl5)
**** Time elapsed computing: 15.95
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 26.648
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 39232563 -- (37.4 MB) (using zlib lvl9)
**** Time elapsed computing: 16.688
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 22.482
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 46769301 -- (44.6 MB) (using lzo lvl1)
**** Time elapsed computing: 7.849
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 13.018
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 46769301 -- (44.6 MB) (using lzo lvl5)
**** Time elapsed computing: 7.405
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 12.706
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 46769301 -- (44.6 MB) (using lzo lvl9)
**** Time elapsed computing: 7.689
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 46.875
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 35431445 -- (33.8 MB) (using bzip2 lvl1)
**** Time elapsed computing: 51.35
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 91.027
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 35431445 -- (33.8 MB) (using bzip2 lvl5)
**** Time elapsed computing: 51.24
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 90.568
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 35431445 -- (33.8 MB) (using bzip2 lvl9)
**** Time elapsed computing: 51.27
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 56.0
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 103591654 -- (98.8 MB) (using blosc lvl1)
**** Time elapsed computing: 5.673
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 10.791
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 64574012 -- (61.6 MB) (using blosc lvl5)
**** Time elapsed computing: 7.019
Populating x using tables.Expr with 10000000 points...
*** Time elapsed populating: 13.269
Computing: '.25*x**3 + .75*x**2 - 1.5*x - 2' using tables.Expr
Total file sizes: 48148116 -- (45.9 MB) (using blosc lvl9)
**** Time elapsed computing: 8.293
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