On Fri, 2016-10-21 at 09:51, Alexey Cherkaev <alexey.cherk...@gmail.com> wrote: > Ay, how many times I've done it! Still forget about global variables! > > OK, I see now about `.+` and friends.
As a work-around until 0.6: If you use the functional form of binary operators then they get fused too: x .= (+).(y,z) > Thanks! > > On Friday, October 21, 2016 at 3:59:59 AM UTC+2, Steven G. Johnson wrote: >> >> Putting things into a function to avoid benchmarking in global scope: >> >> >> foo!(x,y) = x .= cos.(sin.(y)) >> >> y = rand(1000); x = similar(y); >> >> @time foo!(x, y); >> >> >> gives (after running @time twice to eliminate the compilation time): >> >> >> 0.000035 seconds (5 allocations: 176 bytes) >> >> >> i.e. it is not allocating any arrays, and all the loops are fused. >> >> >> Binary operations like .+ will not be fused until Julia 0.6, however. >> (This is documented in the manual.) >>
