On Dec 11, 2007 12:46 PM, Andrew Straw <strawman@astraw.com> wrote:
According to the QEMU website, QEMU does not (yet) emulate SSE on x86 target, so a Windows installation on a QEMU virtual machine may be a good way to build binaries free of these issues. http://fabrice.bellard.free.fr/qemu/qemu-tech.html I tried this, this does not work (it actually emulates SSE). I went further, and managed to disable SSE support in qemu...
But again, what's the point: it takes ages to compile (qemu without the hardware accelerator is slow, like ten times slower), and you will end up with a really bad atlas, since atlas optimizaton is entirely based on runtime timers, which do not make sense anymore. I mean, really, what's the point of doing all this compared to using blas/lapack from netlib ? In practice, is it really slower ? For what ? I know I don't care so much, and I am a heavy user of numpy. David