Table 2
Computational times and memory usage for single-frequency runs of the radial (1.5D), axisymmetric (2.5D), and 3D methods for concentric shells with constant background coefficients and for the solar model.
| Simulation | Radial | Axisymmetric | 3D | |
|
|
||||
| Concentric shells (Sect. 6.6) | ||||
| Number of degrees of freedom | 41 | 4101 | 453 001 | |
| Number of modes | 1369 | 75 | – | |
| CPU time | 6.5 s | 42.4 s | 1753.2 s | |
| Memory usage | 128 MB | 173 MB | 26.3 GB | |
|
|
||||
| Solar model (Sect. 7) | ||||
| Number of degrees of freedom | 381 | 1 072 900 | ||
| Number of modes | 1 | 1 | ||
| CPU time | 0.48 s | 141 s | ||
| Memory usage | 744 kB | 6.6 GB | ||
Notes. The number of modes (number of l times number of m for the radial case and number of m for the axisymmetric case) is chosen such that the error is smaller than 10-4. Computational costs are also given for a single-mode run of the solar case in 1.5D and 2.5D. All computational times are given for single-core computations.
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