[SciPy-user] lpmn - python crash with AMD processor

Andres Corrada-Emmanuel corrada@cs.umass....
Mon Jan 7 07:43:19 CST 2008


I think he was referring to the binary version of the ATLAS library that 
you have installed on your system. Google for ATLAS pre-built binaries 
to find the place to go.

ennesnospam1@aeroakustik.de wrote:
>>> I tried on eight different machines with different scipy versions <=
>>> 0.6.0, all under WinXP SP 2 (32 bit). Two had Intel processors ->
>>> everything fine. Six had AMDs (Athlon, Duron) -> segmentation fault.
>>> From your post it seems that it works fine under Linux. Unfortunately
>>> Linux is no option for me (at least in this case).
>>>
> 
>> What are the kind of processor you have and which binary did you take ?
>> For Athlon XP processors, you cannot take the usual binary bacause it
> uses
>> SSE2 instructions which are not supported by Athlon XP processors. You
>> should take the binary for Pentium II (which does not support the SSE2
>> instruction set).
> 
> On my present machine it is an AMD Sempron, but I had the same problem
> with other AMDs like AlthonXP and Duron. It is not very clear for me
> _what_ binary you mean. The specfun.pyd? I have no means of determining
> what version it has (I found version "0.0" in the crash report, but I
> guess that would be of no help) . Python itself and any function in
> scipy/numpy/ETS etc. works fine on all processors.
> My scipy install is from the scipy-0.6.0.0004_s-py2.5-win32.egg (which
> is not marked as exclusively built for Intel), but I found the same
> behaviour in earlier versions.
> 
> Where do I find this PII version you mentioned?
> 
> Ennes
> 
> 
> 
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-- 
Andres Corrada-Emmanuel
Research Fellow
Aerial Imaging and Remote Sensing Lab
Computer Science Department
University of Massachusetts at Amherst
Blog: www.corrada.com/blog



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