. Author manuscript; available in PMC: 2015 Feb 1.

Published in final edited form as: J Comput Appl Math. 2013 Sep 6;257:195–211. doi: 10.1016/j.cam.2013.09.001

Table 5.

Running times in seconds (global iteration number) for all meshes: S1 and S2 are the speedups of patchPCGAMG compared to Hypre-PCGAMG and CUSP-PCGAMG. S3 is the speedup of the CUSP-CG compared to the Hypre-CG.

meshes	patch PCGAMG	Hypre-PCGAMG	S1	CUSP-PCGAMG	S2	CUSP-CG	Hypre-CG	S3
Regular	0.139 (19)	3.86 (25)	28	0.175 (36)	1.3	0.680 (329)	3.73 (329)	5
Irregular	0.167 (31)	3.02 (29)	18	0.216 (56)	1.3	2.43 (1639)	14.8 (1639)	6
Heart	0.218 (20)	11.2 (31)	51	0.631 (46)	2.9	4.64 (1148)	33.8 (1131)	7
Brain	0.165 (19)	7.78 (27)	47	0.432 (45)	2.6	8.15 (1838)	60.4 (1810)	9
Blobs	0.172 (23)	5.70 (28)	33	0.409 (50)	2.4	3.34 (1048)	16.0 (1030)	5