Research Article
Parallel RFSAI-BFGS Preconditioners for Large Symmetric Eigenproblems
Table 6
Iterations, timings, and pseudo efficiencies for problem FLOW3D-663.
| | precond | DACG | Newton | Total | | CPU | CPU | MVP | CPU | MVP | CPU | MVP |
| 8 | 42.43 | 238.34 | 4291 | 704.78 | 11112 | 985.55 | 15403 | ā | 16 | 27.00 | 131.29 | 4291 | 408.05 | 11681 | 566.33 | 15972 | 0.87 | 32 | 18.17 | 79.85 | 4292 | 241.79 | 11275 | 339.81 | 15567 | 0.73 | 64 | 89.32 | 54.57 | 4291 | 166.77 | 11542 | 230.67 | 15833 | 0.53 | 128 | 84.89 | 40.68 | 4292 | 119.82 | 11177 | 165.39 | 15469 | 0.37 |
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