A Parallel Wavelet-Based Algebraic Multigrid Black-Box Solver and Preconditioner

Table 7

Solver phase speedup using a relative time(p): example for matrix 2cubes_sphere.

	𝑝=1	𝑝=2	𝑝=3	𝑝=4	𝑝=5	𝑝=6
(A) wtime(𝑝)	2.02	2.99	3.47	3.26	3.32	3.27
(B) π-time(𝑝)	0.0000885	0.0002926	0.0003222	0.000997	0.001011	0.0009938
(C) time(𝑝) = A/B	22824.86	10218.73	10769.71	3269.81	3283.88	3290.40
(D) speedup(𝑝)	1.00	2.23	2.12	6.98	6.95	6.94