6 September 2021 10:53:18.828 PM cg_rc_test(): FORTRAN90 version Test cg_rc(). TEST01 Use CG_RC on the 1, -2, 1 matrix. Number of iterations was 9 Estimated error is 0.421596E-15 Loo error is 0.666134E-15 I X(I) X_EXACT(I) B(I) 1 0.780626E-16 0.00000 0.309017 2 0.309017 0.309017 -0.302487E-01 3 0.587785 0.587785 -0.575365E-01 4 0.809017 0.809017 -0.791922E-01 5 0.951057 0.951057 -0.930960E-01 6 1.00000 1.00000 -0.978870E-01 7 0.951057 0.951057 -0.930960E-01 8 0.809017 0.809017 -0.791922E-01 9 0.587785 0.587785 -0.575365E-01 10 0.309017 0.309017 -0.302487E-01 11 -0.479828E-16 0.122465E-15 0.388578E-15 12 -0.309017 -0.309017 0.302487E-01 13 -0.587785 -0.587785 0.575365E-01 14 -0.809017 -0.809017 0.791922E-01 15 -0.951057 -0.951057 0.930960E-01 16 -1.00000 -1.00000 0.978870E-01 17 -0.951057 -0.951057 0.930960E-01 18 -0.809017 -0.809017 0.791922E-01 19 -0.587785 -0.587785 0.575365E-01 20 -0.309017 -0.309017 0.302487E-01 21 -0.410262E-15 -0.244929E-15 -0.309017 TEST02 Use CG_RC to solve a linear system involving the Wathen matrix. NX = 5 NY = 4 N = 79 Number of iterations was 19 Estimated error is 0.438473E-02 Loo error is 0.278313E-04 I X(I) X_EXACT(I) B(I) 1 0.827683 0.827681 -18.3158 2 0.389370 0.389388 78.8431 3 0.738954 0.738944 -18.9791 4 0.784689E-01 0.784674E-01 24.1028 5 0.591390 0.591390 -19.7408 6 0.427763 0.427770 52.3717 7 0.697165 0.697147 -18.7129 8 0.829841 0.829826 62.8694 9 0.871030 0.871021 -19.8778 10 0.553014E-01 0.552804E-01 44.7565 11 0.460394 0.460382 -16.4417 12 0.770150 0.770160 81.8912 13 0.883125 0.883124 130.623 14 0.123252E-01 0.123152E-01 57.7886 15 0.319930 0.319941 96.2332 16 0.567823 0.567835 115.184 17 0.754421 0.754438 65.7451 18 0.356029 0.356048 -43.3684 19 0.275186 0.275175 140.343 20 0.275170 0.275174 -59.6427 21 0.160174 0.160177 47.7096 22 0.244107 0.244115 -46.0949 23 0.859481 0.859474 127.926 24 0.104246 0.104242 -47.0761 25 0.623935E-01 0.623881E-01 29.3696 26 0.846746 0.846751 -24.3229 27 0.842578 0.842560 152.097 28 0.849077 0.849070 -24.4723 29 0.982509 0.982508 96.2437 30 0.997326E-01 0.997402E-01 90.1487 31 0.280488 0.280492 94.6453 32 0.691416E-01 0.691480E-01 43.7021 33 0.427154 0.427160 73.3147 34 0.449896 0.449916 69.2075 35 0.642314 0.642309 -32.0874 36 0.778296 0.778290 160.042 37 0.325520 0.325525 -60.6796 38 0.730851 0.730854 101.668 39 0.970774 0.970781 -30.3453 40 0.702946 0.702934 154.825 41 0.864226 0.864231 -34.5040 42 0.100340 0.100329 52.1597 43 0.308692 0.308697 -61.1640 44 0.632384 0.632376 170.641 45 0.874862 0.874872 -35.5317 46 0.262368 0.262376 65.5564 47 0.509697E-01 0.509720E-01 84.2557 48 0.833345 0.833354 144.978 49 0.765263 0.765277 149.316 50 0.867675 0.867685 167.231 51 0.971234 0.971226 103.233 52 0.437175 0.437161 -42.7138 53 0.937318 0.937315 172.649 54 0.617784 0.617781 -64.0718 55 0.349463E-01 0.349402E-01 79.2597 56 0.598141 0.598139 -72.8847 57 0.299934 0.299926 165.512 58 0.405026 0.405027 -85.1640 59 0.198909 0.198910 112.240 60 0.599018 0.599009 -59.4966 61 0.685039E-01 0.685041E-01 112.846 62 0.235041E-02 0.234369E-02 -46.2703 63 0.913911E-01 0.914001E-01 76.7825 64 0.466628 0.466633 147.976 65 0.889899 0.889913 182.262 66 0.797773 0.797768 171.429 67 0.732240 0.732235 120.333 68 0.144952 0.144953 30.3707 69 0.498345 0.498350 -24.4316 70 0.939484 0.939472 94.8372 71 0.352400 0.352402 -40.5279 72 0.500066 0.500038 65.2759 73 0.412550 0.412537 -42.0152 74 0.733597 0.733591 108.825 75 0.425895 0.425903 -43.3841 76 0.144793 0.144807 54.2339 77 0.570579 0.570582 -21.2189 78 0.363614 0.363613 44.6269 79 0.326500 0.326501 -10.1232 cg_rc_test(): Normal end of execution. 6 September 2021 10:53:18.828 PM