9 May 2025 8:57:22.073 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 0.369714E-02 Loo error is 0.181107E-04 I X(I) X_EXACT(I) B(I) 1 0.923019 0.923003 -4.53220 2 0.480828 0.480816 49.5297 3 0.310348 0.310366 -37.9406 4 0.670204 0.670208 86.3870 5 0.140971 0.140976 -34.5847 6 0.533853 0.533849 46.7327 7 0.985170 0.985170 -1.08342 8 0.543666 0.543670 27.2695 9 0.771923 0.771931 -22.1099 10 0.979009 0.979007 94.8531 11 0.994189 0.994206 -15.9742 12 0.847812 0.847820 61.3660 13 0.180048 0.180053 110.146 14 0.605873 0.605875 136.650 15 0.152301 0.152306 49.7648 16 0.188252 0.188254 92.9839 17 0.662314 0.662314 87.9287 18 0.712993 0.712982 -32.3953 19 0.209328 0.209322 121.600 20 0.487539 0.487537 -97.1020 21 0.762424 0.762422 217.875 22 0.485187 0.485187 -70.5482 23 0.106597 0.106597 64.9743 24 0.285541 0.285535 -46.6615 25 0.450471 0.450471 76.4361 26 0.789757 0.789753 -47.1617 27 0.724501 0.724504 163.192 28 0.416196E-01 0.416153E-01 -47.6458 29 0.609913 0.609905 87.6553 30 0.999744 0.999745 233.088 31 0.967646 0.967649 187.944 32 0.964522E-01 0.964450E-01 75.7334 33 0.454973 0.454957 134.681 34 0.750429 0.750425 80.7175 35 0.165764E-01 0.165674E-01 -49.8181 36 0.684449 0.684447 164.917 37 0.708225 0.708219 -87.6385 38 0.550029 0.550026 202.836 39 0.549006 0.549015 -88.0424 40 0.226726 0.226729 105.920 41 0.443571 0.443574 -75.2614 42 0.818468 0.818467 177.095 43 0.444815 0.444807 -88.7525 44 0.275519 0.275535 143.574 45 0.807441 0.807438 -37.5813 46 0.211167 0.211179 52.6205 47 0.858043 0.858052 175.832 48 0.288295 0.288305 143.342 49 0.702682 0.702684 188.949 50 0.844972 0.844971 198.166 51 0.902099 0.902090 92.9511 52 0.964069 0.964076 -36.4586 53 0.389455 0.389445 153.409 54 0.841941 0.841940 -67.1764 55 0.843359 0.843345 175.632 56 0.286066 0.286079 -73.6546 57 0.984481 0.984480 151.362 58 0.629995 0.629986 -54.6338 59 0.506594 0.506600 133.213 60 0.710087 0.710094 -52.8322 61 0.655714 0.655716 142.403 62 0.849918 0.849936 -24.9967 63 0.817257 0.817259 97.4064 64 0.789361 0.789374 176.474 65 0.156867 0.156874 89.8048 66 0.197464 0.197471 63.5020 67 0.410958 0.410961 65.8102 68 0.467332 0.467317 44.7765 69 0.115972 0.115971 -27.5849 70 0.609535 0.609523 92.0886 71 0.214131 0.214116 -46.5960 72 0.870527E-01 0.870457E-01 52.5257 73 0.209758 0.209755 -34.4059 74 0.135036 0.135025 29.6438 75 0.872097 0.872104 -8.64789 76 0.132960 0.132942 17.9624 77 0.820015E-01 0.820032E-01 -20.5229 78 0.124475 0.124493 30.0459 79 0.924657 0.924645 -5.64942 cg_rc_test(): Normal end of execution. 9 May 2025 8:57:22.073 PM