Open Access
Table 2.
Number of PCG iterations and matrix-vector products (MatVecs) for different choices of k and dimp for the first ten systems in the sequence.
| dimp | k | #iterations | #MatVecs |
|
|---|---|---|---|---|
| Deflation | Total | |||
| 20 | 6 | 933 | 54 | 987 |
| 50 | 6 | 783 | 54 | 837 |
| 100 | 6 | 708 | 54 | 762 |
| 20 | 10 | 867 | 90 | 957 |
| 50 | 10 | 775 | 90 | 865 |
| 100 | 10 | 612 | 90 | 702 |
Notes. The initial guess is the same as in Eq. (37).
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