MRILDU: An Improvement to ILUT Based on Incomplete LDU Factorization and Dropping in Multiple Rows

Table 1

Dimension () and number of nonzero (NNZ) test matrices.

Matrix		NNZ	Application field
af_shell10	1508065	27090195	Sheet metal forming
bone010	986703	36326514	Model reduction
ldoor	952203	42493817	Structural problem
thermal2	1228045	4904179	Thermal problem
airfoil_2d	14214	259688	CFD problem
cvxbqp1	50000	349968	Optimization problem
sparsine	50000	1548988	Structural problem
orsirr_1	1030	6858	CFD problem
pores_2	1224	9613	CFD problem
saylr3	1000	3750	CFD problem
sherman3	5005	20033	CFD problem