1 #500000 sparse full #50000 sparse full
2 #nb threads times nb iter times nb iter times nb iter times nb iter
3 1024 523 27 545 8.61 16
4 512 449.426 24 520 9.27 19
5 256 440.805 24 480 7.73 15
6 128 456.175 22 560 8.64 21
7 64 472.862 23 603 7.84 16
8 32 830.152 24 920 11.33 18
9 16 1234 24 1870 20.47 21
10 8 2632.78 23 3589 35.07 26
