Table 8 Time to convergence on ill-posed problems
From: Newton–Raphson preconditioner for Krylov type solvers on GPU devices
DIAG | SSOR | BFGS–DIAG | BFGS–SSOR | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
m = 3 | m = 5 | m = 7 | m = 10 | m = 3 | m = 5 | m = 7 | m = 10 | |||
\(40 \times 40 \times 125\) | 2.91E+02 | 3.62E+01 | 7.43E+01 | 8.57E+01 | 1.02E+02 | 1.08E+02 | 1.87E+01 | 2.58E+01 | 3.28E+01 | 3.81E+01 |
\(20 \times 20 \times 500\) | NA | 1.87E+02 | 6.25E+02 | 4.58E+02 | 7.87E+02 | NA | 1.34E+02 | 1.46E+02 | 1.24E+02 | 1.84E+02 |
\(10 \times 10 \times 2000\) | NA | 2.43E+03 | NA | NA | NA | NA | 9.32E+02 | 1.18E+03 | 9.09E+02 | NA |