Table 9.

Computational time (in s) and efficiency (eff) according to (58) for a nonlinear elastic problem on the carotid artery mesh using a varying number of processing units P. The time is measured for 1 time steps with 5 Newton steps for classical FETI and the lumped preconditioner.

P	local time	eff	global CG time	eff	total time	eff
16	726.0 s	1.000	4725.8 s	1.000	6519.7 s	1.000
32	351.3 s	1.033	2368.2 s	0.998	3497.0 s	0.932
64	170.5 s	1.065	1262.9 s	0.936	1991.2 s	0.819
128	90.7 s	1.001	694.5 s	0.851	1194.1 s	0.682
256	47.3 s	0.960	443.6 s	0.666	914.4 s	0.446
512	23.9 s	0.949	297.2 s	0.497	667.4 s	0.305