A Parameterized Splitting Preconditioner for Generalized Saddle Point Problems

Table 1

Preconditioned GMRES(20) on Stokes problems with different grid sizes (uniform grids).

Grid	𝛼	its	LU time	its time	Total time
16×16	0.0001	4	0.0457	0.0267	0.0724
32×32	0.0001	6	0.3912	0.0813	0.4725
64×64	0.0001	9	5.4472	0.5519	5.9991
128×128	0.0001	14	91.4698	5.7732	97.2430