Research Article
Different Versions of ILU and IUL Factorizations Obtained from Forward and Backward Factored Approximate Inverse Processes—Part I
Table 5
Information of preconditioned GMRES(16) method by using different versions of IULBF preconditioner.
| Method | IULBF1 | IULBF2 | IULBF3 | IULBF4 |
| | | time | | time | | time | | time |
| hor-131 | 3 | 34.969 | 3 | 63.344 | 2 | 26.828 | 1 | 63.328 | sherman2 | + | + | + | + | + | + | 1 | 1265.38 | cavity05 | 3 | 1600.69 | 2 | 1891.52 | 3 | 808.703 | 1 | 2074.26 | cavity06 | 3 | 668.093 | 2 | 1872.95 | 3 | 795.438 | 1 | 1339.13 | sherman4 | 3 | 792.609 | 2 | 874.141 | 2 | 462.016 | 2 | 626.094 | epb0 | 24 | 1142.06 | 23 | 3673.17 | 22 | 1025.64 | 22 | 3010.25 | pde2961 | 3 | 7376.75 | 3 | 15940.3 | 2 | 4648.44 | 1 | 9449.7 |
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