System Size

Sylvester

GS

Sylvester

GS

$M\times N$

V(2,1)-cycles

V(2,1)-cycles

$q_{\text{sylvester}}^{\text{mg}}$

$q_{\text{gs}}^{\text{mg}}$

CPU Time

CPU Time

$16\times 16$

12

14

0.055

0.067

1.53

1.66

$32\times 32$

13

15

0.062

0.078

2.07

2.16

$64\times 64$

13

15

0.066

0.082

3.29

2.94

$128\times 128$

13

15

0.068

0.083

6.34

4.87

$256\times 256$

13

15

0.068

0.083

24.1

15.4

$512\times 512$

13

15

0.069

0.083

151.8

102.3