[Numpy-discussion] Compiler change for Windows version between 220.127.116.11 and 1.0.4?
Travis E. Oliphant
Wed Dec 19 19:21:46 CST 2007
Stuart Brorson 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-18.104.22.168 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?
You are correct, and the problem is in the process of being rectified by
building on a different machine. There are several Trac tickets
already posted due to this problem.
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