Research Article

Accelerated Circulant and Skew Circulant Splitting Methods for Hermitian Positive Definite Toeplitz Systems

Table 4

Numerical results of Example 5.3 for , .

ITCPU
CGCSCS ACSCSCGCSCSACSCS

16 0.8963 −0.0771 8 12 0.00770.0082
32 0.5967 −0.2367 16 18 0.00820.0090
64 0.4444 0.1194 26 22 16 0.00900.00920.0093
128 0.3282 0.0025 36 20 0.01020.0105
256 0.2490 0.0473 47 27 0.01230.0130
512 0.1898 −0.0012 59 29 0.01700.0171
1024 0.1484 0.0125 68 31 0.02790.0297