Research Article
Parallel Rayleigh Quotient Optimization with FSAI-Based Preconditioning
Table 5
Iterations and CPU time for the iterative solver of LOBPCG-hypre preconditioned by Parasails with different values of bl and processors.
| | Matrix | bl = 10 | bl = 11 | bl = 12 | bl = 15 | | iter | | iter | | iter | | iter | |
| | FAULT-639 | 156 | 79.5 | 157 | 85.3 | 157 | 96.1 | 160 | 128.1 | | PO-878 | 45 | 117.0 | 41 | 131.6 | 38 | 151.3 | 35 | 192.6 | | GEO-1438 | 23 | 123.7 | 72 | 173.7 | 30 | 152.5 | 121 | 291.1 | | CUBE-6091 | 101 | 1670.5 | 143 | 2414.0 | 38 | 1536.7 | 35 | 1680.9 |
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