In addition to what Fred said, `addprocs()` adds new workers, i.e. processes, which are not necessary bound to your CPU cores.
On Friday, May 20, 2016 at 6:05:05 AM UTC+3, SHORE SHEN wrote: > > Hi > > Im doing a loop and need parallel computing. > > from the doc, it is said to "julia -p n" command to start n processor in > local mashine > > however here's the result: > > julia> julia -p 2 > ERROR: syntax: extra token "2" after end of expression > > also I tried addprocs(n), my computer is 4 core 8 threads, but I can add 9 > processors......... > > > so if anyone can tell me how i should start all 4 core in my computer and > what is the difference between julia -p n and addprocs(n). > > thanks a lot >
