Research Article
Combination of MLFMA and ACA to Accelerate Computation of Scattering from Underground Targets
Table 4
Computation consumption of scattering from a pipe under a rough surface with different distances.
| Distance (m) | | MoM-MLFMA | MoM-MLFMA-ACA | Filling time (s) | Memory for nondiagonal block matrices | Iteration time (s) | Filling time (s) | Memory for nondiagonal block matrices | Iteration time (s) |
| 1 | 20524 | 110 | 2.53 GB | 298 | 90 | 466 | 153 | 2 | 20524 | 116 | 2.53 GB | 303 | 87 | 452 | 144 | 3 | 20524 | 117 | 2.53 GB | 311 | 86 | 441 | 182 |
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