Table 1
CPU time requirements for the SEM approach proposed in this paper and the perturbation method of Nagendra et al. (2002) for different values of optical thickness T.
| Optical | SEM approach | Perturbation method |
| thickness T | (CPU time in min) | (CPU time in min) |
|
|
||
| 1 | 10 | 36 |
| 10 | 95 | 275 |
| 100 | 110 | 413 |
| 103 | 101 | 448 |
| 104 | 112 | 532 |
Notes. The PRD function computation times are excluded from the CPU time given in this table, because they are common to both the methods. The model parameters and the grid specifications are the same as those discussed in Sect. 6.1. The computations were performed on a Sun Fire V20z Server, 2385 MHz, with a single-core AMD Opteron processor.
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