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Theory and Modern Applications

Table 12 Comparison of the time taken by Gauss elimination, BICGSTAB, and FAST-BICGSTAB methods when \(\beta =\gamma =0.8\) and \(\tau =h\)

From: The finite volume element method for the two-dimensional space-fractional convection–diffusion equation

h

Method

Time 1

Method

Time 2

Method

Time 3

1/24

Gauss

0.013328 s

BICGSTAB

0.015876 s

FAST-BICGSTAB

0.270941 s

1/25

0.857786 s

0.596994 s

1.933745 s

1/26

67.991373 s

25.279196 s

17.303392 s

1/27

7827.717809 s

1158.434168 s

123.636986 s

1/28

1683.692712 s

1/29

18272.333663 s