[Numpy-discussion] Intel MKL on Core2 system
Wed Mar 11 13:41:41 CDT 2009
On Thu, Mar 12, 2009 at 3:15 AM, Ryan May <email@example.com> wrote:
> I noticed the following in numpy/distutils/system_info.py while trying to
> get numpy to build against MKL:
> if cpu.is_Itanium():
> plt = '64'
> #l = 'mkl_ipf'
> elif cpu.is_Xeon():
> plt = 'em64t'
> #l = 'mkl_em64t'
> plt = '32'
> #l = 'mkl_ia32'
> So in the autodetection for MKL, the only way to get plt (platform) set to
> 'em64t' is to test true for a Xeon. This function returns false on my Core2
> Duo system, even though the platform is very much 'em64t'. I think that
> check should instead read:
> elif cpu.is_Xeon() or cpu.is_Core2():
I think this whole code is inherently fragile. A much better solution
is to make the build process customization easier and more
straightforward. Auto-detection will never work well.
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