Table 3 Parameters of different meshes for DTM1 model.
From: Hybrid mesh for magnetotelluric forward modeling based on the finite element method
Mesh property | Relationship with hybrid grid | Horizontal size | Vertical size | NE | DoF | Time (min) | Memory (GB) | ||
|---|---|---|---|---|---|---|---|---|---|
TriMES (m) | TriGR | Thickness of the first layer (m) | PriGR/TetGR | ||||||
Hybrid mesh | Â | 2000 | 1.5 | 318 | 1.5 | 34,489 | 350,809 | 11.833 | 33.04 |
Tetrahedral mesh | Similar horizontal size with that in hybrid mesh | 2000 | 1.5 | 2000 | 1.5 | 22,083 | 170,129 | 3.467 | 15.383 |
Similar DoF with that in hybrid mesh | 1000 | 1.5 | 1000 | 1.5 | 46,340 | 356,659 | 8.933 | 29.27 | |
Much denser than other meshes | 500 | 1.5 | 500 | 1.5 | 153,754 | 1,180,702 | 55.833 | 109.87 | |
