From: On block diagonal-Schur complements of the block strictly doubly diagonally dominant matrices
l | 30 | 40 | 50 | 60 | 70 | 80 | 90 | |
---|---|---|---|---|---|---|---|---|
PGMRES(l) | CPU | 0.0021 | 0.0026 | 0.0016 | 0.0016 | 0.0033 | 0.0021 | 0.0016 |
IT | 4 | 4 | 4 | 4 | 4 | 4 | 4 | |
GMRES(l) | CPU | 0.0096 | 0.0159 | 0.0197 | 0.0141 | 0.0196 | 0.0186 | 0.0176 |
IT | 27 | 25 | 24 | 53 | 53 | 53 | 53 |