Howdy - this is my first foray into Julia so I started with Gary Feierbach “Learning Julia 1.0” O’Reilly video. I am on Julia 1.5 (installed a while ago but never started). And on Win10 machine.
After first lecture I wanted to time some code and it seems that Distributed does not seem to work - what am I doing wrong? Code is below:
julia> using Distributed julia> function head_count_parallel(count) heads = @distributed (+) for i=1:count Int(floor(rand()+0.5)) end return heads end head_count_parallel (generic function with 1 method) julia> function head_count(count) heads = 0 for i=1:count heads += Int(floor(rand()+0.5)) end return heads end head_count (generic function with 1 method) julia> using BenchmarkTools julia> @btime head_count(200000000) 826.122 ms (0 allocations: 0 bytes) 100015574 julia> @btime head_count_parallel(200000000) 831.377 ms (29 allocations: 1.84 KiB) 99991249