Table 2:
properties of ILUFF1, ILUFF2, ILUFF3, and ILUFF4 preconditioners.
Method
ILUFF1
ILUFF2
ILUFF3
ILUFF4
Density
𝑃
time
Density
𝑃
time
Density
𝑃
time
Density
𝑃
time
hor-131
0.984696
22.031
1.098996
43.86
0.990435
32.422
1.075562
32.64
sherman2
0.463237
466.531
0.682342
742.432
0.462847
637.203
0.687668
666.312
cavity05
0.272646
736.343
0.338992
1567.223
0.280553
1079.63
0.368013
1139.59
cavity06
0.291794
678.782
0.376243
1484.22
0.295636
993
0.407515
817.828
sherman4
1.243001
266.203
1.312467
804.922
1.243001
319.172
1.321447
574.328
epb0
1.575348
943.093
1.981968
2360.44
1.750386
1274.88
2.248583
1777.27
pde2961
1.234763
6996.83
1.327048
10863
1.248269
5879.3
1.334248
9262.47