On Apr 6, 2015 5:13 PM, "Sturla Molden" <[email protected]> wrote: > > On 07/04/15 01:49, Nathaniel Smith wrote: > > > Any opinions, objections? > > Accelerate does not break multiprocessing, quite the opposite. The bug > is in multiprocessing and has been fixed in Python 3.4.
I disagree, but it hardly matters: you can call it a bug in accelerate, or call it a bug in python, but either way it's an issue that affects our users and we need to either work around it or not. > ATLAS can easily reduce the speed of a matrix product or a linear > algebra call with a factor of 20 compared to Accelerate, MKL or > OpenBLAS. It would give us bad karma. Sure, but in some cases accelerate reduces speed by a factor of infinity by hanging, and OpenBLAS may or may not give wrong answers (but quickly!) since apparently they don't do regression tests, so we have to pick our poison. -n
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