Table 2: Performance of different iterative methods.

TFOCS ADMM PPA-CM SPDRPPAG1-I
It./CPU Err. It./CPU Err. It./CPU Err. It./CPU Err.

1681/4.16 492/0.67 1027/1.41 391/0.10
406/1.68 274/0.53 848/0.76 214/0.28
507/4.01 607/3.93 804/3.65 239/1.49
933/19.50 1070/27.47 845/15.09 422/9.84
461/9.91 916/25.48 868/16.27 391/9.44
451/9.74 464/20.37 884/16.91 429/10.54
505/12.37 2155/56.45 863/18.95 425/11.89
801/20.15 1517/45.37 1102/34.27 425/14.20
407/13.64 —/— 546/20.13 308/12.40
1257/56.11 —/—508/26.48 308/17.22
801/81.42 —/—1313/813.52 522/69.52
842/107.18 —/— 724/100.36 542/83.07