Hard to say, but you could try creating an FFT plan. https://groups.google.com/d/msg/julia-users/ww-57NucHKA/Sc3RZFpFY9UJ http://docs.julialang.org/en/release-0.4/stdlib/math/#Base.plan_fft
On Sat, Dec 19, 2015 at 8:13 AM, 博陈 <[email protected]> wrote: > > <https://lh3.googleusercontent.com/-9paHdkUPBA4/VnVWcUZqSxI/AAAAAAAAAA0/fPuVTg1k0UI/s1600/QQ%25E6%2588%25AA%25E5%259B%25BE20151219210640.png> > As can be seen, all the 8 cores of my pc is being used by the julia > program, however, only 35% of the system resource is covered. My julia code > mainly does the fft operates in a loop. I use fftw.set_num_threads(8) > outside the loop. In my opinion, the top command should exhibit nearly > 100% use of the system resource, but that's not true. >
