Research Article
Parallel Solvers for Finite-Difference Modeling of Large-Scale, High-Resolution Electromagnetic Problems in MRI
Table 2
Computing performance.
| | Property of coefficient matrix | Problem resolution | | 8 mm | 6 mm | 4 mm | 2 mm |
| | Scale | 153699 × 153699 | 350786 ×
350786 | 1134416 × 1134416 | 8670828 × 8670828 | | Nonzero elements | 884439 | 2109038 | 7150900 | 57488850 |
| | Convergence performance | | | | |
| | Parallelized SOR | 2.5 minutes | 14 minutes | 36 minutes | 31 hours | | Single-CPU BiCG | 10 seconds | 39 seconds | 3 minutes | 1.8 hours | | Parallelized BiCG | 7 seconds | 23 seconds | 1.5 minutes | 50 minutes |
|
|
