Different Versions of ILU and IUL Factorizations Obtained from Forward and Backward Factored Approximate Inverse Processes—Part I

Table 1

Information of GMRES(16) method without preconditioning and matrix properties.

Matrix	𝑛	𝑛𝑛𝑧	𝑃𝐷	𝐼time	𝑖𝑡
hor-131	434	4182	No	67.594	4273
sherman2	1080	23094	No	+	+
cavity05	1182	32632	No	0.875	27
cavity06	1182	29675	No	+	+
sherman4	1104	3786	No	0.531	23
epb0	1794	7764	No	+	+
pde2961	2961	14585	yes	0.734	18