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. Author manuscript; available in PMC: 2020 Sep 15.
Published in final edited form as: Comput Mech. 2019 Feb 6;64:717–739. doi: 10.1007/s00466-019-01678-3

Table 3:

The number of iterations and the portion of compute time consumed by the linear solver for the pipe benchmark problem with deformable walls. The number of linear solver iterations is counted for 10 time step calculations. tT is the total compute time, tLS is the compute time consumed by solving the linear system.

BIPN-RPC /ϵ = 10−3
Nbipn tLS/tT Ngmres tgmres/tLS Ncg tCG/tLS
608 78.6% 117377 77% 64865 15.6%
BIPN-RPC /ϵ = 10−6
Nbipn tLS/tT Ngmres tgmres/tLS Ncg tCG/tLS
1580 83.9% 318272 79.4% 145183 13.4%
BIPN-RPC /ϵ = 10−9
Nbipn tLS/tT Ngmres tgmres/tLS Ncg tCG/tLS
14872 83.3% 4087258 79.6% 874018 11.0%
ϵ = 10−3 GMRES BICGS
PC Ngmres tLS/tT Nbicgs tLS/tT
Diag 11283 71.9% 12094 66.3%
Block-D 9127 65.1% 9438 59.9%
ILU 3900 61.2% 3655 64.2%
ILUT 3493 70.6% 3333 70.9%
IC 4089 17.2% 3873 20.02%
ML 3735 31.74% 3799 44.43%
ϵ = 10−6 GMRES BICGS
PC Ngmres tLS/tT Nbicgs tLS/tT
Diag 33455 86.2% 45623 85.3%
Block-D 26311 81.7% 29589 77.3%
ILU 7699 70.1% 7338 74.9%
ILUT 5904 75.1% 5537 77.1%
IC 8241 28.7% 7819 32.0%
ML 7109 49.9% 7610 63.9%
ϵ = 10−9 GMRES BICGS
PC Ngmres tLS/tT Nbicgs tLS/tT
Diag 71884 90.25% 100431 90.6%
Block-D 55392 88.2% 49695 82.1%
ILU 13801 75.1% 13093 80.0%
ILUT 9848 76.7% 9404 79.3%
IC 14615 42.2% 13858 43.4%
ML 12178 59.8% 9587 78.4%