Table 4 Parameters of different meshes for the sloped terrain models.
From: Hybrid mesh for magnetotelluric forward modeling based on the finite element method
Tilt angle | Mesh property | Horizontal size | Vertical size | NE | DoF | Time (min) | Memory (GB) | ||
|---|---|---|---|---|---|---|---|---|---|
TriMES (m) | TriGR | Thickness of the first layer (m) | PriGR/TetGR | ||||||
10 | Hybrid mesh | 120 | 1.5 | 15 | 1.0/1.5 | 39,112 | 402,554 | 6.7 | 40.9 |
General tetrahedral mesh | 120 | 1.5 | 120 | 1.5 | 53,403 | 414,966 | 6.483 | 41.62 | |
Dense tetrahedral mesh | 50 | 1.5 | 50 | 1.5 | 101,733 | 786,072 | 8.683 | 62.7 | |
20 | Hybrid mesh | 120 | 1.5 | 15 | 1.5 | 37,873 | 394,195 | 6.417 | 40.07 |
General tetrahedral mesh | 120 | 1.5 | 120 | 1.5 | 55,327 | 430,114 | 7.567 | 43.07 | |
Dense tetrahedral mesh | 50 | 1.5 | 50 | 1.5 | 112,294 | 867,347 | 10.483 | 71.2 | |
30 | Hybrid mesh | 120 | 1.5 | 15 | 1.5 | 35,659 | 350,706 | 4.467 | 32.63 |
General tetrahedral mesh | 120 | 1.5 | 120 | 1.5 | 65,500 | 508,124 | 9.867 | 55.29 | |
Dense tetrahedral mesh | 50 | 1.5 | 50 | 1.5 | 116,996 | 903,361 | 12.817 | 79.18 | |
