Table 2 Required memory space (KB), elapsed time ( ms ) and required iterations to reach the error of 10 −3 for a 250000×250000 matrix
From: Weighted gradient domain image processing problems and their iterative solutions
| Â | CG | ILU0 | MILU | MILUC | Proposed |
|---|---|---|---|---|---|
mem | 32,6842 | 62,624 | 46,984 | 81,228 | 25,444 |
time | 2.9661 | 0.8661 | 0.3201 | 872.56 | 0.2110 |
iters | 62 | 20 | 7 | 4(2.33) | 3 |