Convergence Analysis of the Preconditioned Group Splitting Methods in Boundary Value Problems

Table 2

Comparison of performances for the Preconditioned EDG SOR and MEDG SOR.

	Preconditioned methods
𝑁	Preconditioned EDG SOR				Preconditioned MEDG SOR
	𝑤	𝑘	𝑡 (secs)	𝑒	𝑤	𝑘	𝑡 (secs)	𝑒
34	1.679	41	0	3.85𝐸−06	1.442	16	0	3.47𝐸−06
86	1.757	88	0.034	3.87𝐸−06	1.5882	30	0.008	3.09𝐸−06
118	1.774	106	0.051	4.47𝐸−06	1.642	43	0.016	3.55𝐸−06
186	1.782	151	0.133	4.68𝐸−06	1.684	59	0.025	4.24𝐸−06
222	1.795	168	0.198	4.15𝐸−06	1.671	72	0.078	3.99𝐸−06