A Parameterized Splitting Preconditioner for Generalized Saddle Point Problems

Table 13

Size and number of non-nil elements of the coefficient matrix generalized by using Q2-Q1 FEM in steady Stokes problems.

Grid	dim(𝐴)	nnz(𝐴)	dim(𝐵)	nnz(𝐵)	nnz(𝐴+(1/𝛼)𝐵^𝑇𝐵)
16×16	578×578	6178	81×578	2318	36904
32×32	2178×2178	28418	289×2178	10460	193220
64×64	8450×8450	122206	1089×8450	44314	875966
128×128	33282×33282	506376	4225×33282	184316	3741110