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. Author manuscript; available in PMC: 2016 Jan 6.
Published in final edited form as: Int J Numer Methods Eng. 2014 Jul 27;99(4):290–312. doi: 10.1002/nme.4674

Table 5.

Iteration numbers (it.) per Newton step and computational time (in s) per Newton step for the all-floating and the classical FETI approach with linear ansatz functions comparing the three considered preconditioners. The penalty parameter κ was set to 1000 kPa. Mesh: mesh of the carotid artery with two layers (adventitia and media) subdivided in 512 subdomains, computed with 512 cores.

type identity preconditioner lumped preconditioner Dirichlet preconditioner
all-floating > 10000 it. − s 1084 it. 100.6 s 497 it. 85.5 s
classical 5130 it. 357 s 1794 it. 200.2 s 588 it. 97.7 s