Answer:
Which method leads more quickly to results depends on the complexity of the model and the size of the available main memory (RAM):
- For small and medium-sized systems, the direct method is more efficient.
- For very large and complex systems, the iterative method leads to results more quickly.
Once the matrices can no longer be located in the main memory using the direct method, Windows begins to store parts of the main memory to the hard disk. Hard disk activities increase and the processor load is reduced, which is visible in the Windows Task Manager. Using the iterative ICG (
Incomplete Conjugate Gradient) calculation method, you can avoid this storage problem.
