[Numpy-discussion] Segmentation Fault with Numeric 24.2 on Mac OS X 10.4 Tiger (8.7.0)

Hanno Klemm klemm at phys.ethz.ch
Thu Aug 10 09:12:50 CDT 2006


Daran,

I had a similar behaviour when I tried to use module compield with an
older f2py with a newer version of numpy. So is it maybe possible that
some *.so files are used from an earlier build?


Hanno

"Daran L. Rife" <drife at ucar.edu> said:

> Hi group,
> 
> Sorry, but there was an error on my previous message,
> 2nd paragraph, 2nd setence. It should read:
> 
> Unfortunately, I am experiencing a problem that I cannot sort
> out. I am running Python 2.4.3 on a Mac G5 running OS X 10.4
> Tiger (8.7.0), using gcc version 4.0.1, and the Apple
> vecLib.framework which has an optimized BLAS and LAPACK.
> When building Numeric 24.0, 24.1, or 24.2 everything seems
> to go AOK. But when I run code which makes use of the Numeric
> package (maksed arrays, dot product, LinearAlgebra, etc.) my
> code crashes hard and unpredictably. When it crashes I simply
> get a "Segmentation Fault". I'm sorry that I can't be more
> specific about what seems to happen just before the crash...
> I've tried to trace it but to no avail.
> 
> Thanks again for your help.
> 
> 
> Daran
> 
> --
> 
> > I recently switched from a Debian Linux box to a Mac G5
> > PowerPC, running Mac OS X 10.4 Tiger (8.7.0). I use the
> > Python Numeric package extensively, and have come to
> > depend upon it. In my view, this piece of software is
> > truly first rate, and it has greatly improved my
> > productivity in the area of scientific analysis.
> >
> > Unfortunately, I am experiencing a problem that I cannot sort
> > out. I am running Python 2.4.3 on a Debian box (V3.1), using
> > gcc version 4.0.1, and the Apple vecLib.framework which has
> > an optimized BLAS and LAPACK. When building Numeric 24.0,
> > 24.1, or 24.2 everything seems to go AOK. But when I run
> > code which makes use of the Numeric package (maksed arrays,
> > dot product, LinearAlgebra, etc.) my code crashes hard and
> > unpredictably. When it crashes I simply get a "Segmentation
> > Fault". I'm sorry that I can't be more specific about what
> > seems to happen just before the crash...I've tried to trace
> > it but to no avail.
> >
> > Interestingly, I can get Numeric version 23.8 to build and
> > run just fine, but it appears that the dotblas (BLAS
> > optimized matrixmultiply/dot/innerproduct) does not properly
> > get built in. Thus, all my matrix operations are -very- slow.
> >
> > Has anyone seen this problem, or know where I might look
> > to solve it? Perhaps I have overlooked a crucial step in
> > the build/install of Numeric 24.x on the Mac.
> >
> > I searched round the Net with google, and have sifted through
> > the numpy/scipy/numeric Web pages, various mailing lists, user
> > groups, etc., and can't seem to find any relevant info.
> >
> > Alternatively, can someone explain how to get Numeric 23.8
> > to compile on OS X 10.4 Tiger, with the dotblas module?
> >
> >
> > Thanks very much for your help,
> >
> >
> > Daran
> >
> >
> >
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> 
> 
>
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-- 
Hanno Klemm
klemm at phys.ethz.ch






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