Research Article
A Polynomial Preconditioner for the CMRH Algorithm
| Algorithm | No. of restarts | Time (sec) | Residual norm | Convergence |
| GMRES(20) | 1000 | 368.0310 | 1.8110e − 6 | No | CMRH(20) | 883 | 100.2500 | 8.4761e − 11 | Yes | PCMRH(20) () | 481 | 57.2650 | 8.2944e − 11 | Yes |
|
|