It's not able to vectorize the loop, at least on my computer when I tested it.
On Thursday, April 10, 2014 10:44:44 AM UTC-4, Mike Innes wrote: > > Ah, nice > On 10 Apr 2014 15:39, "Isaiah Norton" <isaiah...@gmail.com <javascript:>> > wrote: > >> See @simd: https://github.com/JuliaLang/julia/pull/5355 >> >> >> On Thu, Apr 10, 2014 at 10:26 AM, Mike Innes >> <mike.j...@gmail.com<javascript:> >> > wrote: >> >>> To be fair, the simplest implementation being the fastest isn't >>> *necessarily* to Julia's credit, since it may also mean that Julia can >>> only optimise the simplest code. Not saying that's the case here, but it's >>> worth looking at it from that angle. >>> >>> Chris' point gives me an idea for an @unroll macro – it could unroll a >>> generic for loop to do n at a time, or even take the loop out entirely >>> when the iterator is a compile-time constant. >>> >> >>
