[Numpy-discussion] Compiler change for Windows version between 1.0.3.1 and 1.0.4?

[Ryan Krauss]

Sounds like exactly the problem Jarrod Millman is working to solve.
The new binary uses SSE2 options which P3's and older Athlons don't
support.  It sounds like Jarrod has found a machine he can use to
create the new binaries and solve the problem.

On Dec 18, 2007 1:07 PM, Stuart Brorson <sdb at cloud9.net> wrote:
> Hi --
>
> I have found a bug in numpy-1.0.4.  The bug is a crash when doing
> linalg.inv() on a Windows machine.   The machine is an old Pentium 3
> machine.  The error report indicates an invalid op code.  Details
> about this bug are in the numpy tracker under ticket 635.
>
> Numpy-1.0.3.1 doesn't crash when running the same code.
>
> I installed the pre-built binaries available from numpy's SF site.
> Since the binaries were built by you, I can only suspect that the
> problem involves using a different compiler to build 1.0.4.  I suspect
> the new version was built with a compiler which emitted op codes the
> old P3 chip couldn't handle.
>
> Can the developers confirm or deny my hypothesis?
>
> Thanks,
>
> Stuart Brorson
> Interactive Supercomputing, inc.
> 135 Beaver Street | Waltham | MA | 02452 | USA
> http://www.interactivesupercomputing.com/
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