[SciPy-User] [ANN] Bottleneck 0.5.0 released

[Keith Goodman]

On Sat, Aug 13, 2011 at 12:05 PM, Stef Mientki <stef.mientki at gmail.com> wrote:
> thanks Cristoph,
>
> found the problem,
> I used a too old version of numpy,
> ( wouldn't it be an idea to replace line 17 in __init__.py with "print 'requires at least numpy 1.5.1"

Sounds like a good idea but unfortunately there are other reasons,
besides an old version of numpy, why the cython functions might fail
to load. For example, the compilation may have failed.

> now the fast routines are working ...

Yay!

> ... at least sometimes

Oh :(

> ... at least on some computers
>
> What I've seen until now:
> Computer 1: numpy 1.4, so it uses slow routines: functional ok
> Computer 2: exactly the same python + libs: screen starts to "blink" to black a few times (for about
> half a second, with an interval about 2 seconds),
> after 10 times, the screen is filled with a repeating part of the screen and computer hangs totally.

Oh, my goodness! That is odd.

> Computer 2: numpy 1.6.1 : first program run, screen "blinks" black once, the fast bottleneck
> routines are use, and they function ok.
> Second run of the same program: screen blinks blank once, after a few seconds, the screen is again
> filled with a smaal repating part of the screen and the computer hangs totally.
> Any ideas ?

That is terrible. I have no clue as to the cause.

> Is the GPU used with these routines ?

No.

> cheers,
> Stef
>
> On 13-08-2011 17:09, Christoph Gohlke wrote:
>>
>> On 8/13/2011 6:54 AM, Stef Mientki wrote:
>>> hello,
>>>
>>> is it possible to create a windows executable
>>> (a lot of windows users can't compile C-code).
>>>
>>> I tried the prebuild versions from:
>>> http://www.lfd.uci.edu/~gohlke/pythonlibs/#bottleneck
>>>
>>> but the fast routines are all missing there.
>> I don't see anything missing. Tests and benchmarks yield expected
>> results using numpy 1.6.1.
>>
>> What's the output of `import bottleneck as bn;bn.test()` (requires nose
>> 1.x)?
>>
>> Christoph
>>
>>> thanks,
>>> Stef
>>>
>>> On 13-06-2011 23:35, Keith Goodman wrote:
>>>> Bottleneck is a collection of fast NumPy array functions written in
>>>> Cython. It contains functions like median, nanmedian, nanargmax,
>>>> move_max, rankdata.
>>>>
>>>> The fifth release of bottleneck adds four new functions, comes in a
>>>> single source distribution instead of separate 32 and 64 bit versions,
>>>> and contains bug fixes.
>>>>
>>>> J. David Lee wrote the C-code implementation of the double heap moving
>>>> window median.
>>>>
>>>> New functions:
>>>> - move_median(), moving window median
>>>> - partsort(), partial sort
>>>> - argpartsort()
>>>> - ss(), sum of squares, faster version of scipy.stats.ss
>>>>
>>>> Changes:
>>>> - Single source distribution instead of separate 32 and 64 bit versions
>>>> - nanmax and nanmin now follow Numpy 1.6 (not 1.5.1) when input is all NaN
>>>>
>>>> Bug fixes:
>>>> - #14 Support python 2.5 by importing `with` statement
>>>> - #22 nanmedian wrong for particular ordering of NaN and non-NaN elements
>>>> - #26 argpartsort, nanargmin, nanargmax returned wrong dtype on 64-bit Windows
>>>> - #29 rankdata and nanrankdata crashed on 64-bit Windows
>>>>
>>>> download
>>>>      http://pypi.python.org/pypi/Bottleneck
>>>> docs
>>>>      http://berkeleyanalytics.com/bottleneck
>>>> code
>>>>      http://github.com/kwgoodman/bottleneck
>>>> mailing list
>>>>      http://groups.google.com/group/bottle-neck
>>>> mailing list 2
>>>>      http://mail.scipy.org/mailman/listinfo/scipy-user
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