Research Article
Different Versions of ILU and IUL Factorizations Obtained from Forward and Backward Factored Approximate Inverse Processes—Part I
Table 4
Information of preconditioned GMRES(16) method by using different versions of ILUFF preconditioner.
| Method | ILUFF1 | ILUFF2 | ILUFF3 | ILUFF4 |
| | | time | | time | | time | | time |
| hor-131 | 4 | 23.031 | 3 | 45.4868 | 2 | 32.922 | 2 | 32.984 | sherman2 | + | + | + | + | + | + | + | + | cavity05 | + | + | + | + | + | + | 191 | 2324.7 | cavity06 | + | + | + | + | + | + | 96 | 926.188 | sherman4 | 3 | 270.324 | 3 | 810.734 | 3 | 322.687 | 3 | 577.485 | epb0 | 12 | 978.405 | 8 | 2385.63 | 13 | 1335.89 | 8 | 1795.58 | pde2961 | 4 | 7027.38 | 4 | 10894.7 | 4 | 5928.36 | 3 | 9294.05 |
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