Numerical Solution of Diffusion Models in Biomedical Imaging on Multicore Processors

Table 5

Convergence history of Algorithm SI. Δ𝜏_SI=0.016. On the first column, we denote the scale step number, and the symbol 𝑝−𝑞 is used to denote the steps ranging from the 𝑝-th until to the 𝑞-th. Second column reports the number of GMRES iterations at each scale step, third column reports the maximum number of AMG levels at each GMRES iteration.

𝑖	𝑘^𝑖gmres	𝑙𝑣^𝑖
1	5	6
2-3	5	5
4	5	4
5–7	4	4
8-8	4	3
10–13	3	3
14–20	3	2
21-22	3	1
23–25	2	1