u=4 n=1024 h=16.0 B=16: mean J/B = 4.753, max J/B = 5.875
u=4 n=4096 h=32.0 B=16: mean J/B = 5.173, max J/B = 6.312
u=4 n=16384 h=64.0 B=16: mean J/B = 5.534, max J/B = 7.000
u=16 n=1024 h=8.0 B=64: mean J/B = 3.868, max J/B = 4.406
u=16 n=4096 h=16.0 B=64: mean J/B = 4.783, max J/B = 5.484
u=16 n=16384 h=32.0 B=64: mean J/B = 5.278, max J/B = 5.797
