testit Problem = name: 'Oberwolfach/LFAT5' title: 'Oberwolfach: linear 1D beam' A: [14x14 double] id: 1440 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2004' author: 'J. Lienemann, A. Greiner, J. Korvink' ed: 'E. Rudnyi' kind: 'model reduction problem' x=A\b time 0.0007 resid: 1.71e-21 CHOLMOD time 0.0007 resid: 2.56e-21 PCG time 0.0049 resid: 3.04e-21 flag: 0 iter: 12 PCG time 0.0049 resid: 3.04e-21 flag: 0 iter: 12 Problem = name: 'Oberwolfach/LF10' title: 'Oberwolfach: linear 1D beam' A: [18x18 double] id: 1438 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2004' author: 'J. Lienemann, A. Greiner, J. Korvink' ed: 'E. Rudnyi' kind: 'model reduction problem' x=A\b time 0.0001 resid: 1.87e-18 CHOLMOD time 0.0001 resid: 3.35e-18 PCG time 0.0064 resid: 1.96e-16 flag: 0 iter: 19 PCG time 0.0068 resid: 1.96e-16 flag: 0 iter: 19 Problem = title: 'SYMMETRIC MASS MATRIX, SMALL OIL RIG, STATICALLY CONDENSED' A: [66x66 double] name: 'HB/bcsstm02' id: 57 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0000 resid: 4.54e-15 CHOLMOD time 0.0001 resid: 1.95e-14 PCG time 0.0013 resid: 4.54e-15 flag: 0 iter: 2 PCG time 0.0012 resid: 4.54e-15 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX - TEXTILE LOOM FRAME' A: [138x138 double] name: 'HB/bcsstm22' id: 72 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0000 resid: 1.61e-13 CHOLMOD time 0.0002 resid: 6.90e-13 PCG time 0.0013 resid: 1.56e-12 flag: 0 iter: 2 PCG time 0.0012 resid: 1.56e-12 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX, TRANSMISSION TOWER, LUMPED MASSES' A: [153x153 double] name: 'HB/bcsstm05' id: 60 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0000 resid: 1.70e-15 CHOLMOD time 0.0002 resid: 9.08e-15 PCG time 0.0013 resid: 1.71e-14 flag: 0 iter: 2 PCG time 0.0012 resid: 1.71e-14 flag: 0 iter: 2 Problem = title: ' TEST MATRIX FROM FIDAP: EX5.MAT' A: [27x27 double] name: 'FIDAP/ex5' id: 436 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0001 resid: 3.09e-15 CHOLMOD time 0.0001 resid: 3.09e-15 PCG time 0.0076 resid: 2.00e-06 flag: 1 iter: 21 PCG time 0.0373 resid: 1.34e-12 flag: 0 iter: 108 Problem = A: [48x48 double] title: 'mesh1e1, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh1e1' id: 872 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0002 resid: 3.57e-16 CHOLMOD time 0.0002 resid: 3.57e-16 PCG time 0.0054 resid: 7.26e-07 flag: 0 iter: 14 PCG time 0.0056 resid: 7.26e-07 flag: 0 iter: 14 Problem = A: [48x48 double] title: 'mesh1em1, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh1em1' id: 873 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0002 resid: 1.69e-16 CHOLMOD time 0.0002 resid: 1.69e-16 PCG time 0.0077 resid: 1.27e-06 flag: 1 iter: 21 PCG time 0.0085 resid: 2.09e-07 flag: 0 iter: 23 Problem = A: [48x48 double] title: 'mesh1em6, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh1em6' id: 874 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0002 resid: 4.03e-16 CHOLMOD time 0.0002 resid: 4.03e-16 PCG time 0.0056 resid: 9.91e-07 flag: 0 iter: 15 PCG time 0.0057 resid: 9.91e-07 flag: 0 iter: 15 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, SMALL TEST STRUCTURE' A: [112x112 double] name: 'HB/bcsstk03' id: 25 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0002 resid: 1.58e-22 CHOLMOD time 0.0002 resid: 1.58e-22 PCG time 0.0084 resid: 2.76e-10 flag: 1 iter: 21 PCG time 0.0536 resid: 1.21e-16 flag: 0 iter: 146 Problem = title: 'SYMMETRIC MASS MATRIX, MEDIUM TEST PROBLEM, LUMPED MASSES' A: [420x420 double] name: 'HB/bcsstm06' id: 61 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0000 resid: 3.59e-19 CHOLMOD time 0.0003 resid: 2.80e-18 PCG time 0.0013 resid: 3.59e-19 flag: 0 iter: 2 PCG time 0.0013 resid: 3.59e-19 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX - FRAME WITHIN A SUSPENSION BRIDGE' A: [485x485 double] name: 'HB/bcsstm20' id: 70 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0000 resid: 9.13e-23 CHOLMOD time 0.0003 resid: 4.87e-22 PCG time 0.0013 resid: 9.13e-23 flag: 0 iter: 2 PCG time 0.0014 resid: 9.13e-23 flag: 0 iter: 2 Problem = title: 'SYMMETRIC STIFFNESS MATRIX SMALL GENERALIZED EIGENVALUE PROBLEM' A: [48x48 double] name: 'HB/bcsstk01' id: 23 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0009 resid: 3.05e-22 CHOLMOD time 0.0003 resid: 3.05e-22 PCG time 0.0075 resid: 7.00e-09 flag: 1 iter: 21 PCG time 0.0166 resid: 2.34e-15 flag: 0 iter: 48 Problem = title: 'SYMMETRIC MATRIX OF BEAM STRUCTURE, NOVEMBER 1982.' A: [100x100 double] name: 'HB/nos4' id: 220 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0005 resid: 1.39e-12 CHOLMOD time 0.0004 resid: 1.39e-12 PCG time 0.0082 resid: 5.60e+01 flag: 1 iter: 21 PCG time 0.0260 resid: 2.39e-05 flag: 0 iter: 71 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - TEXTILE LOOM FRAME' A: [138x138 double] name: 'HB/bcsstk22' id: 44 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0003 resid: 1.13e-18 CHOLMOD time 0.0004 resid: 1.13e-18 PCG time 0.0084 resid: 1.07e-05 flag: 1 iter: 21 PCG time 0.0471 resid: 2.13e-12 flag: 0 iter: 123 Problem = title: 'SYMMETRIC MATRIX, FE APPROXIMATION TO BIHARMONIC OPERATOR ON BEAM.' A: [237x237 double] name: 'HB/nos1' id: 217 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0003 resid: 1.91e-18 CHOLMOD time 0.0004 resid: 1.91e-18 PCG time 0.0090 resid: 4.63e-08 flag: 1 iter: 21 PCG time 0.0804 resid: 1.97e-08 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MASS MATRIX - PART OF A SUSPENSION BRIDGE' A: [817x817 double] name: 'HB/bcsstm19' id: 69 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 2.16e-22 CHOLMOD time 0.0006 resid: 9.24e-22 PCG time 0.0014 resid: 2.16e-22 flag: 0 iter: 2 PCG time 0.0014 resid: 2.16e-22 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX, FRAME BUILDING (TV STUDIO)' A: [1074x1074 double] name: 'HB/bcsstm08' id: 63 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 3.06e-21 CHOLMOD time 0.0007 resid: 2.43e-20 PCG time 0.0015 resid: 3.06e-21 flag: 0 iter: 2 PCG time 0.0017 resid: 3.06e-21 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX, SQUARE PLATE CLAMPED' A: [1083x1083 double] name: 'HB/bcsstm09' id: 64 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 2.84e-11 CHOLMOD time 0.0007 resid: 2.92e-10 PCG time 0.0015 resid: 2.84e-11 flag: 0 iter: 2 PCG time 0.0015 resid: 2.84e-11 flag: 0 iter: 2 Problem = title: 'MAGNETO-HYDRO-DYNAMICS ALFVEN SPECTRAL PROBLEM' A: [416x416 double] name: 'Bai/mhdb416' id: 315 date: '1994' author: 'A. Booten, M. Kooper, H. van der Vorst, S. Poedts, J. Goedbloed' ed: 'Z. Bai, D. Day, J. Demmel, J. Dongarra' kind: 'electromagnetics problem' x=A\b time 0.0006 resid: 7.53e-13 CHOLMOD time 0.0007 resid: 7.53e-13 PCG time 0.0101 resid: 6.01e-01 flag: 1 iter: 21 PCG time 0.0181 resid: 4.02e-05 flag: 0 iter: 36 Problem = title: 'S ADMITTANCE MATRIX 494 BUS POWER SYSTEM, D.J.TYLAVSKY, JULY 1985.' A: [494x494 double] name: 'HB/494_bus' id: 2 date: '1985' author: 'D. Tylavsky' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'power network problem' x=A\b time 0.0008 resid: 2.62e-14 CHOLMOD time 0.0010 resid: 2.62e-14 PCG time 0.0103 resid: 6.26e-03 flag: 1 iter: 21 PCG time 0.0933 resid: 6.26e-03 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MASS MATRIX, ORE CAR (LUMPED MASSES)' A: [1473x1473 double] name: 'HB/bcsstm11' id: 66 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 4.89e-16 CHOLMOD time 0.0009 resid: 2.03e-15 PCG time 0.0018 resid: 4.89e-16 flag: 0 iter: 2 PCG time 0.0016 resid: 4.89e-16 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX - REACTOR CONTAINMENT FLOOR -- SECTION' A: [1922x1922 double] name: 'HB/bcsstm26' id: 76 date: '1984' author: 'A. Mera, R. Cigel, J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 1.16e-14 CHOLMOD time 0.0011 resid: 5.69e-14 PCG time 0.0019 resid: 1.16e-14 flag: 0 iter: 2 PCG time 0.0017 resid: 1.16e-14 flag: 0 iter: 2 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, SMALL OIL RIG, STATICALLY CONDENSED' A: [66x66 double] name: 'HB/bcsstk02' id: 24 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0004 resid: 1.50e-16 CHOLMOD time 0.0007 resid: 1.69e-16 PCG time 0.0101 resid: 1.11e-03 flag: 1 iter: 21 PCG time 0.0316 resid: 3.62e-12 flag: 0 iter: 72 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, TRANSMISSION TOWER, LUMPED MASSES' A: [153x153 double] name: 'HB/bcsstk05' id: 27 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0007 resid: 1.16e-18 CHOLMOD time 0.0008 resid: 1.16e-18 PCG time 0.0093 resid: 9.27e-06 flag: 1 iter: 21 PCG time 0.0529 resid: 5.67e-12 flag: 0 iter: 128 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - FRAME WITHIN A SUSPENSION BRIDGE' A: [485x485 double] name: 'HB/bcsstk20' id: 42 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0008 resid: 3.27e-22 CHOLMOD time 0.0009 resid: 3.27e-22 PCG time 0.0111 resid: 1.69e-14 flag: 1 iter: 21 PCG time 0.1005 resid: 1.69e-14 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MATRIX A OF LUND EIGENVALUE PROBLEM, MAY 1974' A: [147x147 double] name: 'HB/lund_a' id: 206 date: '1974' author: 'T. Johansson' ed: 'A. Curtis, I. Duff, J. Reid' kind: 'structural problem' x=A\b time 0.0008 resid: 9.94e-19 CHOLMOD time 0.0007 resid: 9.94e-19 PCG time 0.0091 resid: 2.72e-07 flag: 1 iter: 21 PCG time 0.0382 resid: 1.27e-13 flag: 0 iter: 93 Problem = title: 'SYMMETRIC MATRIX B OF LUND EIGENVALUE PROBLEM, MAY 1974' A: [147x147 double] name: 'HB/lund_b' id: 207 date: '1974' author: 'T. Johansson' ed: 'A. Curtis, I. Duff, J. Reid' kind: 'structural problem' x=A\b time 0.0006 resid: 1.05e-16 CHOLMOD time 0.0007 resid: 1.05e-16 PCG time 0.0093 resid: 6.13e-04 flag: 1 iter: 21 PCG time 0.0276 resid: 3.44e-09 flag: 0 iter: 64 Problem = A: [289x289 double] title: 'mesh3e1, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh3e1' Zeros: [289x289 double] id: 877 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0008 resid: 2.60e-15 CHOLMOD time 0.0011 resid: 2.60e-15 PCG time 0.0087 resid: 8.10e-06 flag: 0 iter: 20 PCG time 0.0091 resid: 8.10e-06 flag: 0 iter: 20 Problem = A: [289x289 double] title: 'mesh3em5, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh3em5' Zeros: [289x289 double] id: 878 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0008 resid: 5.16e-15 CHOLMOD time 0.0009 resid: 5.16e-15 PCG time 0.0070 resid: 2.19e-05 flag: 0 iter: 15 PCG time 0.0069 resid: 2.19e-05 flag: 0 iter: 15 Problem = title: 'S ADMITTANCE MATRIX 662 BUS POWER SYSTEM, D.J.TYLAVSKY, JULY 1985.' A: [662x662 double] name: 'HB/662_bus' id: 3 date: '1985' author: 'D. Tylavsky' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'power network problem' x=A\b time 0.0012 resid: 2.09e-13 CHOLMOD time 0.0016 resid: 2.09e-13 PCG time 0.0117 resid: 8.27e-02 flag: 1 iter: 21 PCG time 0.1069 resid: 2.64e-07 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MATRIX, FE APPROXIMATION TO BIHARMONIC OPERATOR ON BEAM.' A: [957x957 double] name: 'HB/nos2' id: 218 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0014 resid: 2.88e-17 CHOLMOD time 0.0013 resid: 2.88e-17 PCG time 0.0139 resid: 3.02e-09 flag: 1 iter: 21 PCG time 0.1260 resid: 3.02e-09 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MASS MATRIX - PORTION OF A 3D GLOBALLY TRIANGLULAR BLDG' A: [3134x3134 double] name: 'HB/bcsstm23' id: 73 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 3.47e-21 CHOLMOD time 0.0018 resid: 1.74e-20 PCG time 0.0021 resid: 3.47e-21 flag: 0 iter: 2 PCG time 0.0022 resid: 3.47e-21 flag: 0 iter: 2 Problem = A: [306x306 double] title: 'mesh2e1, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh2e1' id: 875 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0010 resid: 2.22e-16 CHOLMOD time 0.0013 resid: 2.22e-16 PCG time 0.0098 resid: 3.43e-03 flag: 1 iter: 21 PCG time 0.0323 resid: 2.33e-07 flag: 0 iter: 72 Problem = A: [306x306 double] title: 'mesh2em5, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/mesh2em5' id: 876 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0010 resid: 1.80e-16 CHOLMOD time 0.0011 resid: 1.80e-16 PCG time 0.0110 resid: 3.64e-03 flag: 1 iter: 21 PCG time 0.0316 resid: 2.47e-07 flag: 0 iter: 70 Problem = title: 'S ADMITTANCE MATRIX 1138 BUS POWER SYSTEM, D.J.TYLAVSKY, JULY 1985.' A: [1138x1138 double] name: 'HB/1138_bus' id: 1 date: '1985' author: 'D. Tylavsky' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'power network problem' x=A\b time 0.0018 resid: 4.05e-13 CHOLMOD time 0.0021 resid: 4.05e-13 PCG time 0.0160 resid: 1.41e-02 flag: 1 iter: 21 PCG time 0.1375 resid: 1.41e-02 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, OIL RIG, NOT CONDENSED (SAME MODEL AS X02)' A: [132x132 double] name: 'HB/bcsstk04' id: 26 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0010 resid: 1.26e-18 CHOLMOD time 0.0013 resid: 1.26e-18 PCG time 0.0095 resid: 5.07e-06 flag: 1 iter: 21 PCG time 0.0362 resid: 1.55e-12 flag: 0 iter: 82 Problem = title: 'SYMMETRIC MASS MATRIX - WINTER SPORTS ARENA' A: [3562x3562 double] name: 'HB/bcsstm24' id: 74 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 2.76e-20 CHOLMOD time 0.0019 resid: 1.49e-19 PCG time 0.0022 resid: 2.76e-20 flag: 0 iter: 2 PCG time 0.0024 resid: 2.76e-20 flag: 0 iter: 2 Problem = title: 'SYMMETRIC MASS MATRIX - CLAMPED SQUARE PLATE' A: [3600x3600 double] name: 'HB/bcsstm21' id: 71 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0001 resid: 2.53e-10 CHOLMOD time 0.0020 resid: 1.02e-09 PCG time 0.0022 resid: 2.53e-10 flag: 0 iter: 2 PCG time 0.0023 resid: 2.53e-10 flag: 0 iter: 2 Problem = title: 'S ADMITTANCE MATRIX 685 BUS POWER SYSTEM, D.J.TYLAVSKY, JULY 1985.' A: [685x685 double] name: 'HB/685_bus' id: 4 date: '1985' author: 'D. Tylavsky' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'power network problem' x=A\b time 0.0017 resid: 6.49e-15 CHOLMOD time 0.0018 resid: 6.49e-15 PCG time 0.0118 resid: 1.30e-02 flag: 1 iter: 21 PCG time 0.1096 resid: 9.12e-07 flag: 1 iter: 201 Problem = name: 'Oberwolfach/t2dal_e' title: 'Oberwolfach: micropyros thruster, E matrix' A: [4257x4257 double] id: 1207 kind: 'duplicate model reduction problem' date: '2004' author: 'E. Rudnyi' ed: 'E. Rudnyi' x=A\b time 0.0002 resid: 1.70e-09 CHOLMOD time 0.0025 resid: 8.87e-09 PCG time 0.0027 resid: 1.70e-09 flag: 0 iter: 2 PCG time 0.0027 resid: 1.70e-09 flag: 0 iter: 2 Problem = name: 'Bates/Chem97ZtZ' title: 'Mixed-effects model from D. Bates, Univ. Wisc.' A: [2541x2541 double] id: 1401 date: '2006' author: 'D. Bates' ed: 'T. Davis' kind: 'statistical/mathematical problem' x=A\b time 0.0029 resid: 2.38e-16 CHOLMOD time 0.0034 resid: 2.38e-16 PCG time 0.0238 resid: 1.38e-07 flag: 0 iter: 21 PCG time 0.0234 resid: 1.38e-07 flag: 0 iter: 21 Problem = title: 'SYMMETRIC MATRIX, POISSON'S EQUATION IN L SHAPE, MIXED BC.' A: [675x675 double] name: 'HB/nos6' id: 222 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: '2D/3D problem' x=A\b time 0.0020 resid: 3.32e-15 CHOLMOD time 0.0021 resid: 3.32e-15 PCG time 0.0119 resid: 1.65e-05 flag: 1 iter: 21 PCG time 0.0539 resid: 1.11e-11 flag: 0 iter: 97 Problem = name: 'Pajek/Journals' title: 'Pajek network: Slovenian journals 1999-2000' A: [124x124 double] id: 1506 kind: 'undirected weighted graph' notes: [14x78 char] aux: [1x1 struct] date: '2000' author: 'CATI Center Ljubljana' ed: 'V. Batagelj' x=A\b time 0.0011 resid: 3.01e-19 CHOLMOD time 0.0024 resid: 3.69e-19 PCG time 0.0110 resid: 1.78e-10 flag: 0 iter: 16 PCG time 0.0117 resid: 1.78e-10 flag: 0 iter: 16 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - PART OF A SUSPENSION BRIDGE' A: [817x817 double] name: 'HB/bcsstk19' id: 41 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0023 resid: 3.49e-20 CHOLMOD time 0.0027 resid: 3.49e-20 PCG time 0.0154 resid: 1.83e-12 flag: 1 iter: 21 PCG time 0.1336 resid: 1.83e-12 flag: 1 iter: 201 Problem = title: 'SPLATZMAN FINITE DIFFERENCE MODEL OF ATLANTICOCEAN' A: [362x362 double] name: 'HB/plat362' id: 229 date: '1975' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: '2D/3D problem' x=A\b time 0.0021 resid: 4.20e-05 CHOLMOD time 0.0025 resid: 4.20e-05 PCG time 0.0120 resid: 1.90e+02 flag: 1 iter: 21 PCG time 0.1075 resid: 1.90e+02 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MASS MATRIX, MEDIUM TEST PROBLEM, CONSISTENT MASSES' A: [420x420 double] name: 'HB/bcsstm07' id: 62 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0028 resid: 1.80e-16 CHOLMOD time 0.0031 resid: 1.80e-16 PCG time 0.0128 resid: 1.38e-04 flag: 1 iter: 21 PCG time 0.0246 resid: 3.83e-08 flag: 0 iter: 41 Problem = name: 'Bai/mhd3200b' title: 'ALFVEN SPECTRA IN MAGNETOHYDRODYNAMICS' A: [3200x3200 double] id: 1623 date: '1994' author: 'A. Booten, M. Kooper, H. van der Vorst, S. Poedts, J. Goedbloed' ed: 'Z. Bai, D. Day, J. Demmel, J. Dongarra' kind: 'electromagnetics problem' x=A\b time 0.0045 resid: 2.75e-11 CHOLMOD time 0.0049 resid: 2.75e-11 PCG time 0.0322 resid: 1.85e+01 flag: 1 iter: 21 PCG time 0.0597 resid: 2.50e-04 flag: 0 iter: 38 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, MEDIUM TEST PROBLEM, LUMPED MASSES' A: [420x420 double] name: 'HB/bcsstk06' id: 28 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0033 resid: 4.21e-20 CHOLMOD time 0.0033 resid: 4.20e-20 PCG time 0.0133 resid: 4.99e-08 flag: 1 iter: 21 PCG time 0.1188 resid: 2.70e-09 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, MEDIUM TEST PROBLEM, CONSISTENT MASSES' A: [420x420 double] name: 'HB/bcsstk07' id: 29 kind: 'duplicate structural problem' notes: 'duplicate of HB/bcsstk06' date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' x=A\b time 0.0028 resid: 4.21e-20 CHOLMOD time 0.0032 resid: 4.20e-20 PCG time 0.0133 resid: 4.99e-08 flag: 1 iter: 21 PCG time 0.1214 resid: 2.70e-09 flag: 1 iter: 201 Problem = name: 'Bai/mhd1280b' title: 'ALFVEN SPECTRA IN MAGNETOHYDRODYNAMIC' A: [1280x1280 double] id: 1621 date: '1994' author: 'A. Booten, M. Kooper, H. van der Vorst, S. Poedts, J. Goedbloed' ed: 'Z. Bai, D. Day, J. Demmel, J. Dongarra' kind: 'electromagnetics problem' x=A\b time 0.0054 resid: 1.66e-13 CHOLMOD time 0.0057 resid: 1.66e-13 PCG time 0.0458 resid: 8.03e+00 flag: 1 iter: 21 PCG time 0.1423 resid: 3.13e-06 flag: 0 iter: 65 Problem = title: 'SYMMETRIC MASS MATRIX - 76 STORY SKYSCRAPER' A: [15439x15439 double] name: 'HB/bcsstm25' id: 75 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0008 resid: 1.89e-22 CHOLMOD time 0.0102 resid: 1.00e-21 PCG time 0.0073 resid: 1.89e-22 flag: 0 iter: 2 PCG time 0.0070 resid: 1.89e-22 flag: 0 iter: 2 Problem = name: 'Bai/mhd4800b' title: 'ALFVEN SPECTRA IN MAGNETOHYDRODYNAMICS' A: [4800x4800 double] id: 1625 date: '1994' author: 'A. Booten, M. Kooper, H. van der Vorst, S. Poedts, J. Goedbloed' ed: 'Z. Bai, D. Day, J. Demmel, J. Dongarra' kind: 'electromagnetics problem' x=A\b time 0.0068 resid: 6.22e-11 CHOLMOD time 0.0079 resid: 6.22e-11 PCG time 0.0464 resid: 3.73e+01 flag: 1 iter: 21 PCG time 0.0824 resid: 5.48e-04 flag: 0 iter: 38 Problem = title: 'SYMMETRIC MATRIX FROM NINE POINT START ON A 30 X 30 GRID.' A: [900x900 double] name: 'HB/gr_30_30' id: 159 date: '1983' author: 'R. Grimes' ed: 'I. Duff, R. Grimes, J. Lewis' kind: '2D/3D problem' x=A\b time 0.0040 resid: 5.70e-13 CHOLMOD time 0.0044 resid: 5.70e-13 PCG time 0.0160 resid: 6.10e-01 flag: 1 iter: 21 PCG time 0.0417 resid: 2.55e-05 flag: 0 iter: 56 Problem = title: 'SYMMETRIC MATRIX, FE APPROXIMATION OF BUILDING.' A: [468x468 double] name: 'HB/nos5' id: 221 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0047 resid: 1.68e-17 CHOLMOD time 0.0050 resid: 1.68e-17 PCG time 0.0130 resid: 3.51e-04 flag: 1 iter: 21 PCG time 0.1202 resid: 1.58e-08 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MATRIX, POISSON'S EQUATION IN UNIT CUBE.' A: [729x729 double] name: 'HB/nos7' id: 223 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: '2D/3D problem' x=A\b time 0.0054 resid: 2.31e-13 CHOLMOD time 0.0059 resid: 2.31e-13 PCG time 0.0131 resid: 3.06e-05 flag: 1 iter: 21 PCG time 0.0537 resid: 4.68e-12 flag: 0 iter: 90 Problem = name: 'Oberwolfach/t3dl_e' title: 'Oberwolfach: micropyros thruster, E matrix' A: [20360x20360 double] id: 1211 kind: 'duplicate model reduction problem' date: '2004' author: 'E. Rudnyi' ed: 'E. Rudnyi' x=A\b time 0.0008 resid: 7.58e-08 CHOLMOD time 0.0147 resid: 4.25e-07 PCG time 0.0107 resid: 7.58e-08 flag: 0 iter: 2 PCG time 0.0105 resid: 7.58e-08 flag: 0 iter: 2 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, BUCKLING OF HOT WASHER' A: [1086x1086 double] name: 'HB/bcsstk10' id: 32 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0058 resid: 3.15e-18 CHOLMOD time 0.0065 resid: 3.15e-18 PCG time 0.0252 resid: 1.04e-05 flag: 1 iter: 21 PCG time 0.2288 resid: 6.94e-07 flag: 1 iter: 201 Problem = title: 'SYMMETRIC TEST MATRIX FROM MSC/NASTRAN STARF8.OUT2' A: [1050x1050 double] Zeros: [1050x1050 double] name: 'Boeing/msc01050' id: 358 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0095 resid: 4.79e-08 CHOLMOD time 0.0105 resid: 4.79e-08 PCG time 0.0262 resid: 2.04e-05 flag: 1 iter: 21 PCG time 0.2476 resid: 2.04e-05 flag: 1 iter: 201 Problem = title: 'SYMMETRIC MASS MATRIX, ORE CAR (CONSISTENT MASSES)' A: [1473x1473 double] name: 'HB/bcsstm12' id: 67 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0083 resid: 1.00e-12 CHOLMOD time 0.0085 resid: 1.00e-12 PCG time 0.0250 resid: 4.98e+01 flag: 1 iter: 21 PCG time 0.2339 resid: 5.15e-02 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, FRAME BUILDING (TV STUDIO)' A: [1074x1074 double] name: 'HB/bcsstk08' id: 30 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0124 resid: 3.79e-22 CHOLMOD time 0.0130 resid: 3.79e-22 PCG time 0.0195 resid: 6.00e-09 flag: 1 iter: 21 PCG time 0.1442 resid: 1.20e-15 flag: 0 iter: 161 Problem = title: 'SYMMETRIC MATRIX, FE APPROXIMATION TO BIHARMONIC OPERATOR ON PLATE' A: [960x960 double] name: 'HB/nos3' id: 219 date: '1982' author: 'H. Simon' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0071 resid: 5.17e-13 CHOLMOD time 0.0074 resid: 5.17e-13 PCG time 0.0207 resid: 6.27e-01 flag: 1 iter: 21 PCG time 0.1925 resid: 1.75e-06 flag: 1 iter: 201 Problem = title: ' TEST MATRIX FROM FIDAP: EX33.MAT' A: [1733x1733 double] name: 'FIDAP/ex33' id: 430 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0087 resid: 4.15e-16 CHOLMOD time 0.0099 resid: 4.15e-16 PCG time 0.0275 resid: 5.40e-09 flag: 1 iter: 21 PCG time 0.2607 resid: 5.40e-09 flag: 1 iter: 201 Problem = name: 'GHS_indef/bloweybq' title: 'MATRIX FOR WHICH EARLY VERSION OF MA57 FAILS' A: [10001x10001 double] Zeros: [10001x10001 double] id: 1425 date: '1992' author: 'J. Blowey' ed: 'N. Gould' kind: 'materials problem' x=A\b time 0.0181 resid: 1.28e-01 CHOLMOD time 0.0217 resid: 1.28e-01 PCG time 0.0953 resid: 1.01e+00 flag: 1 iter: 21 PCG time 0.9127 resid: 1.01e+00 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - REACTOR CONTAINMENT FLOOR -- SECTION' A: [1922x1922 double] name: 'HB/bcsstk26' id: 48 date: '1984' author: 'A. Mera, R. Cigel, J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0125 resid: 5.42e-21 CHOLMOD time 0.0137 resid: 5.44e-21 PCG time 0.0325 resid: 4.21e-09 flag: 1 iter: 21 PCG time 0.3108 resid: 4.21e-09 flag: 1 iter: 201 Problem = title: 'NASTRAN BUCKLING PROBLEM STIFFNESS MATRIX' A: [588x588 double] name: 'Boeing/bcsstk34' id: 339 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0093 resid: 2.34e-20 CHOLMOD time 0.0092 resid: 2.34e-20 PCG time 0.0215 resid: 8.75e-07 flag: 1 iter: 21 PCG time 0.1283 resid: 4.19e-12 flag: 0 iter: 126 Problem = title: 'SHUTTLE SOLID ROCKET BOOSTER, MASS MATRIX , E. PRAMONO, NASA AMES' A: [46772x46772 double] name: 'Boeing/bcsstm39' id: 349 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0023 resid: 1.71e-14 CHOLMOD time 0.0376 resid: 7.14e-14 PCG time 0.0262 resid: 1.71e-14 flag: 0 iter: 2 PCG time 0.0268 resid: 1.71e-14 flag: 0 iter: 2 Problem = title: ' TEST MATRIX FROM FIDAP: EX10.MAT' A: [2410x2410 double] name: 'FIDAP/ex10' id: 407 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0158 resid: 2.96e-13 CHOLMOD time 0.0169 resid: 2.96e-13 PCG time 0.0475 resid: 1.07e-05 flag: 1 iter: 21 PCG time 0.4413 resid: 1.07e-05 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, ORE CAR (LUMPED MASSES)' A: [1473x1473 double] name: 'HB/bcsstk11' id: 33 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0132 resid: 5.76e-18 CHOLMOD time 0.0130 resid: 5.76e-18 PCG time 0.0333 resid: 1.00e-06 flag: 1 iter: 21 PCG time 0.3099 resid: 1.00e-06 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, ORE CAR (CONSISTENT MASSES)' A: [1473x1473 double] name: 'HB/bcsstk12' id: 34 kind: 'duplicate structural problem' notes: 'duplicate of HB/bcsstk11' date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' x=A\b time 0.0158 resid: 5.76e-18 CHOLMOD time 0.0140 resid: 5.76e-18 PCG time 0.0334 resid: 1.00e-06 flag: 1 iter: 21 PCG time 0.3094 resid: 1.00e-06 flag: 1 iter: 201 Problem = title: 'TEST MATRIX FROM FIDAP: EX10hs.MAT' A: [2548x2548 double] name: 'FIDAP/ex10hs' id: 408 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0171 resid: 3.94e-13 CHOLMOD time 0.0182 resid: 3.94e-13 PCG time 0.0498 resid: 1.54e-05 flag: 1 iter: 21 PCG time 0.4598 resid: 1.54e-05 flag: 1 iter: 201 Problem = name: 'Oberwolfach/LFAT5000' title: 'Oberwolfach: linear 1D beam' A: [19994x19994 double] id: 1439 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2004' author: 'J. Lienemann, A. Greiner, J. Korvink' ed: 'E. Rudnyi' kind: 'model reduction problem' x=A\b time 0.0314 resid: 4.61e-13 CHOLMOD time 0.0340 resid: 4.61e-13 PCG time 0.1892 resid: 1.71e-10 flag: 1 iter: 21 PCG time 1.8749 resid: 1.71e-10 flag: 1 iter: 201 Problem = title: 'STIFFNESS MATRIX BUCKLING PROBLEM (ANDY MERA)' A: [1224x1224 double] name: 'HB/bcsstk27' id: 49 date: '1984' author: 'A. Mera, R. Cigel, J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0154 resid: 1.31e-18 CHOLMOD time 0.0149 resid: 1.31e-18 PCG time 0.0423 resid: 4.33e-05 flag: 1 iter: 21 PCG time 0.3904 resid: 2.96e-09 flag: 1 iter: 201 Problem = title: ' TEST MATRIX FROM FIDAP: EX3.MAT' A: [1821x1821 double] name: 'FIDAP/ex3' id: 427 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0180 resid: 1.37e-12 CHOLMOD time 0.0182 resid: 1.37e-12 PCG time 0.0523 resid: 2.65e-05 flag: 1 iter: 21 PCG time 0.4767 resid: 2.65e-05 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, SQUARE PLATE CLAMPED' A: [1083x1083 double] name: 'HB/bcsstk09' id: 31 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0132 resid: 1.27e-18 CHOLMOD time 0.0135 resid: 1.27e-18 PCG time 0.0226 resid: 2.62e-06 flag: 1 iter: 21 PCG time 0.2168 resid: 1.32e-10 flag: 1 iter: 201 Problem = title: 'SPLATZMAN SYMMETRIC FINITE DIFFERENCE THREE OCEAN MODEL' A: [1919x1919 double] name: 'HB/plat1919' id: 228 date: '1975' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: '2D/3D problem' x=A\b time 0.0181 resid: 1.40e+03 CHOLMOD time 0.0191 resid: 1.40e+03 PCG time 0.0349 resid: 2.67e+02 flag: 1 iter: 21 PCG time 0.3253 resid: 2.67e+02 flag: 1 iter: 201 Problem = title: 'STRUCTURE FROM NASA LANGLEY, 1824 DEGREES OF FREEDOM' A: [1824x1824 double] b: [1824x1 double] name: 'Nasa/nasa1824' id: 757 date: '1995' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0181 resid: 1.65e-17 CHOLMOD time 0.0180 resid: 1.65e-17 PCG time 0.0369 resid: 2.84e-05 flag: 1 iter: 21 PCG time 0.3463 resid: 2.84e-05 flag: 1 iter: 201 Problem = name: 'Oberwolfach/LF10000' title: 'Oberwolfach: linear 1D beam' A: [19998x19998 double] id: 1437 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2004' author: 'J. Lienemann, A. Greiner, J. Korvink' ed: 'E. Rudnyi' kind: 'model reduction problem' x=A\b time 0.0182 resid: 5.93e-13 CHOLMOD time 0.0344 resid: 2.22e-12 PCG time 0.2022 resid: 2.13e-11 flag: 1 iter: 21 PCG time 1.9125 resid: 2.13e-11 flag: 1 iter: 201 Problem = title: ' TEST MATRIX FROM FIDAP: EX13.MAT' A: [2568x2568 double] name: 'FIDAP/ex13' id: 411 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0260 resid: 1.17e-11 CHOLMOD time 0.0276 resid: 1.17e-11 PCG time 0.0673 resid: 6.50e-08 flag: 1 iter: 21 PCG time 0.6266 resid: 6.50e-08 flag: 1 iter: 201 Problem = name: 'Bindel/ted_B' title: 'FEM, coupled linear thermoeslasticity eqns on a bar. D Bindel, UC Berkeley' A: [10605x10605 double] id: 1406 date: '2006' author: 'D. Bindel' ed: 'T. Davis' kind: 'thermal problem' x=A\b time 0.0361 resid: 7.90e-13 CHOLMOD time 0.0364 resid: 7.90e-13 PCG time 0.1507 resid: 3.18e-03 flag: 0 iter: 21 PCG time 0.1526 resid: 3.18e-03 flag: 0 iter: 21 Problem = name: 'Bindel/ted_B_unscaled' title: 'FEM, coupled linear thermoeslasticity eqns on a bar. D Bindel, UC Berkeley' A: [10605x10605 double] id: 1409 date: '2006' author: 'D. Bindel' ed: 'T. Davis' kind: 'thermal problem' x=A\b time 0.0363 resid: 8.15e-13 CHOLMOD time 0.0372 resid: 8.15e-13 PCG time 0.1518 resid: 3.39e-03 flag: 0 iter: 21 PCG time 0.1499 resid: 3.39e-03 flag: 0 iter: 21 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - CLAMPED SQUARE PLATE' A: [3600x3600 double] name: 'HB/bcsstk21' id: 43 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0287 resid: 3.27e-18 CHOLMOD time 0.0319 resid: 3.27e-18 PCG time 0.0387 resid: 7.10e-06 flag: 1 iter: 21 PCG time 0.3741 resid: 6.75e-07 flag: 1 iter: 201 Problem = title: 'S STIFFNESS MATRIX - ROOF OF OMNI COLISEUM, ATLANTA' A: [1806x1806 double] name: 'HB/bcsstk14' id: 36 date: '1985' author: 'M. Will' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0254 resid: 1.50e-20 CHOLMOD time 0.0241 resid: 1.50e-20 PCG time 0.0493 resid: 6.89e-08 flag: 1 iter: 21 PCG time 0.4528 resid: 5.45e-10 flag: 1 iter: 201 Problem = title: 'SYMMETRIC TEST MATRIX FROM MSC/NASTRAN BC4F8.OUT2' A: [726x726 double] name: 'Boeing/msc00726' id: 357 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0282 resid: 1.81e-21 CHOLMOD time 0.0281 resid: 1.81e-21 PCG time 0.0303 resid: 1.81e-08 flag: 1 iter: 21 PCG time 0.1495 resid: 2.12e-14 flag: 0 iter: 107 Problem = title: 'SYMMETRIC TEST MATRIX FROM MSC/NASTRAN CYLF8.OUT2' A: [1440x1440 double] Zeros: [1440x1440 double] name: 'Boeing/msc01440' id: 359 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0235 resid: 9.39e-17 CHOLMOD time 0.0237 resid: 9.39e-17 PCG time 0.0385 resid: 5.14e-04 flag: 1 iter: 21 PCG time 0.3627 resid: 6.01e-05 flag: 1 iter: 201 Problem = title: ' TEST MATRIX FROM FIDAP: EX9.MAT' A: [3363x3363 double] name: 'FIDAP/ex9' id: 440 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0351 resid: 7.56e-14 CHOLMOD time 0.0364 resid: 7.56e-14 PCG time 0.0852 resid: 2.91e-07 flag: 1 iter: 21 PCG time 0.7803 resid: 2.91e-07 flag: 1 iter: 201 Problem = name: 'Cannizzo/sts4098' title: 'Structural engineering matrix (finite-element), Fabio Cannizzo' A: [4098x4098 double] b: [4098x1 double] id: 1214 date: '2004' author: 'F. Cannizzo' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0467 resid: 2.74e-19 CHOLMOD time 0.0488 resid: 2.74e-19 PCG time 0.0755 resid: 5.62e-06 flag: 1 iter: 21 PCG time 0.6868 resid: 2.56e-08 flag: 1 iter: 201 Problem = title: 'STRUCTURE FROM NASA LANGLEY, 2146 DEGREES OF FREEDOM' A: [2146x2146 double] b: [2146x1 double] name: 'Nasa/nasa2146' id: 758 date: '1995' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0292 resid: 4.07e-19 CHOLMOD time 0.0337 resid: 4.07e-19 PCG time 0.0553 resid: 1.16e-05 flag: 1 iter: 21 PCG time 0.5068 resid: 3.38e-11 flag: 1 iter: 201 Problem = name: 'MathWorks/Muu' title: 'The MathWorks, Inc: symmetric positive definite matrix' A: [7102x7102 double] id: 1331 date: '2006' author: 'B. Cheng' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0652 resid: 8.14e-10 CHOLMOD time 0.0653 resid: 8.14e-10 PCG time 0.1431 resid: 1.64e+00 flag: 0 iter: 21 PCG time 0.1421 resid: 1.64e+00 flag: 0 iter: 21 Problem = title: 'STRUCTURE FROM NASA LANGLEY, 2910 DEGREES OF FREEDOM' A: [2910x2910 double] b: [2910x1 double] name: 'Nasa/nasa2910' id: 759 date: '1995' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0592 resid: 1.01e-17 CHOLMOD time 0.0578 resid: 1.01e-17 PCG time 0.1224 resid: 7.38e-06 flag: 1 iter: 21 PCG time 1.1225 resid: 7.38e-06 flag: 1 iter: 201 Problem = title: 'SYMMETRIC TEST MATRIX FROM MSC/NASTRAN B30F8.OUT2' A: [4515x4515 double] name: 'Boeing/msc04515' id: 360 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.0521 resid: 1.11e-18 CHOLMOD time 0.0519 resid: 1.11e-18 PCG time 0.0907 resid: 6.16e-08 flag: 1 iter: 21 PCG time 0.8367 resid: 6.16e-08 flag: 1 iter: 201 Problem = title: ' TEST MATRIX FROM FIDAP: EX15.MAT' A: [6867x6867 double] name: 'FIDAP/ex15' id: 413 date: '1994' author: 'A. Baggag, Y. Saad' ed: 'A. Baggag, Y. Saad' kind: 'computational fluid dynamics problem' x=A\b time 0.0640 resid: 8.20e-14 CHOLMOD time 0.0616 resid: 8.20e-14 PCG time 0.1044 resid: 2.83e-07 flag: 1 iter: 21 PCG time 0.9767 resid: 2.83e-07 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX, FLUID FLOW GENERALIZED EIGENVALUES' A: [2003x2003 double] name: 'HB/bcsstk13' id: 35 date: '1982' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'computational fluid dynamics problem' x=A\b time 0.0675 resid: 3.25e-21 CHOLMOD time 0.0964 resid: 3.25e-21 PCG time 0.0694 resid: 1.95e-10 flag: 1 iter: 21 PCG time 0.6364 resid: 1.95e-10 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - WINTER SPORTS ARENA' A: [3562x3562 double] name: 'HB/bcsstk24' id: 46 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0627 resid: 3.72e-20 CHOLMOD time 0.0602 resid: 3.72e-20 PCG time 0.1201 resid: 3.82e-11 flag: 1 iter: 21 PCG time 1.0903 resid: 3.82e-11 flag: 1 iter: 201 Problem = title: 'STRUCTURE FROM NASA LANGLEY, 4704 DEGREES OF FREEDOM' A: [4704x4704 double] b: [4704x1 double] name: 'Nasa/nasa4704' id: 760 date: '1995' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.0697 resid: 1.07e-16 CHOLMOD time 0.0684 resid: 1.07e-16 PCG time 0.0960 resid: 7.00e-06 flag: 1 iter: 21 PCG time 0.8782 resid: 7.00e-06 flag: 1 iter: 201 Problem = title: 'Acoustic Radiation around aft duct fan. D. Okunbor, Univ Missouri-Rolla' A: [8205x8205 double] name: 'Okunbor/aft01' id: 791 date: '2001' author: 'W. Eversman, D. Okunbor' ed: 'T. Davis' kind: 'acoustics problem' x=A\b time 0.0762 resid: 3.44e-23 Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 1.75589e-17. CHOLMOD time 0.0781 resid: 3.44e-23 PCG time 0.1288 resid: 4.14e-12 flag: 1 iter: 21 PCG time 1.1946 resid: 4.14e-12 flag: 1 iter: 201 Problem = title: 'S.Norris, Univ. Auckland. FEM, Laplace eqn 2D 100x100 mesh' A: [9604x9604 double] name: 'Norris/fv1' id: 887 date: '2003' author: 'S. Norris' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 0.0791 resid: 7.61e-13 CHOLMOD time 0.0828 resid: 7.61e-13 PCG time 0.1141 resid: 5.70e-04 flag: 0 iter: 21 PCG time 0.1122 resid: 5.70e-04 flag: 0 iter: 21 Problem = title: 'S.Norris, Univ. Auckland. FEM, Laplace eqn 2D 101x101 mesh' A: [9801x9801 double] name: 'Norris/fv2' id: 888 date: '2003' author: 'S. Norris' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 0.0817 resid: 7.87e-13 CHOLMOD time 0.0852 resid: 7.87e-13 PCG time 0.1176 resid: 5.88e-04 flag: 0 iter: 21 PCG time 0.1152 resid: 5.88e-04 flag: 0 iter: 21 Problem = title: 'S.Norris, Univ. Auckland. FEM, Laplace eqn 2D 101x101 mesh' A: [9801x9801 double] name: 'Norris/fv3' id: 889 date: '2003' author: 'S. Norris' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 0.0826 resid: 1.50e-10 CHOLMOD time 0.0847 resid: 1.50e-10 PCG time 0.1152 resid: 8.25e+02 flag: 1 iter: 21 PCG time 0.9760 resid: 6.40e-04 flag: 0 iter: 178 Problem = title: 'FEM CRYSTAL FREE VIBRATION MASS MATRIX' A: [4875x4875 double] name: 'Boeing/crystm01' id: 353 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'materials problem' x=A\b time 0.0773 resid: 1.10e-01 CHOLMOD time 0.0765 resid: 1.10e-01 PCG time 0.0959 resid: 9.89e+10 flag: 1 iter: 21 PCG time 0.1608 resid: 2.79e+08 flag: 0 iter: 36 Problem = title: 'SOLID ELEMENT MODEL (MSC NASTRAN)' A: [4410x4410 double] name: 'HB/bcsstk28' id: 50 date: '1984' author: 'A. Mera, R. Cigel, J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.0778 resid: 2.89e-16 CHOLMOD time 0.0756 resid: 2.89e-16 PCG time 0.1525 resid: 2.55e-06 flag: 1 iter: 21 PCG time 1.4186 resid: 2.55e-06 flag: 1 iter: 201 Problem = name: 'MathWorks/Kuu' title: 'The MathWorks, Inc: symmetric positive definite matrix' A: [7102x7102 double] id: 1330 date: '2006' author: 'B. Cheng' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.1079 resid: 1.76e-11 CHOLMOD time 0.1038 resid: 1.76e-11 PCG time 0.2303 resid: 4.99e+01 flag: 1 iter: 21 PCG time 2.1252 resid: 4.55e+00 flag: 1 iter: 201 Problem = name: 'Oberwolfach/gyro_m' title: 'Oberwolfach: butterfly gyro, M matrix' A: [17361x17361 double] id: 1203 kind: 'duplicate model reduction problem' date: '2004' author: 'D. Billger' ed: 'E. Rudnyi' x=A\b time 0.1755 resid: 1.02e-01 CHOLMOD time 0.1841 resid: 1.02e-01 PCG time 0.3255 resid: 2.28e+10 flag: 1 iter: 21 PCG time 2.9671 resid: 2.42e+09 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - PORTION OF A 3D GLOBALLY TRIANGLULAR BLDG' A: [3134x3134 double] name: 'HB/bcsstk23' id: 45 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.1125 resid: 8.63e-22 CHOLMOD time 0.1118 resid: 8.63e-22 PCG time 0.0477 resid: 5.07e-14 flag: 1 iter: 21 PCG time 0.4400 resid: 5.07e-14 flag: 1 iter: 201 Problem = name: 'Cylshell/s3rmt3m3' title: 'FEM, cylindrical shell, graded tri. mesh w/ 1666 triangles. , R/t=1000' date: '1997' author: 'R. Kouhia' A: [5357x5357 double] Zeros: [5357x5357 double] notes: [34x79 char] id: 1611 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.0945 resid: 1.48e-08 CHOLMOD time 0.0920 resid: 1.48e-08 PCG time 0.1526 resid: 2.32e-01 flag: 1 iter: 21 PCG time 1.4047 resid: 2.32e-01 flag: 1 iter: 201 Problem = name: 'Lourakis/bundle1' title: 'Sparse bundle adjustment, 3D vision, M. Lourakis, Greece' A: [10581x10581 double] Zeros: [10581x10581 double] id: 1347 date: '2006' author: 'M. Lourakis' ed: 'T. Davis' kind: 'computer graphics/vision problem' x=A\b time 0.2090 resid: 8.10e-25 CHOLMOD time 0.1910 resid: 8.10e-25 PCG time 0.4730 resid: 4.51e-13 flag: 1 iter: 21 PCG time 0.9890 resid: 7.10e-17 flag: 0 iter: 45 Problem = name: 'Oberwolfach/t2dah_e' title: 'Oberwolfach: micropyros thruster, E matrix' A: [11445x11445 double] id: 1205 kind: 'duplicate model reduction problem' date: '2004' author: 'E. Rudnyi' ed: 'E. Rudnyi' x=A\b time 0.1249 resid: 1.19e-07 CHOLMOD time 0.1260 resid: 1.19e-07 PCG time 0.1710 resid: 1.83e+05 flag: 1 iter: 21 PCG time 0.3085 resid: 1.57e+02 flag: 0 iter: 38 Problem = name: 'Cylshell/s3rmt3m1' title: 'FEM, cylindrical shell, 30x30 tri. mesh, stabilized MITC3 elements, R/t=1000' date: '1997' author: 'R. Kouhia' A: [5489x5489 double] Zeros: [5489x5489 double] notes: [34x79 char] id: 1610 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.1103 resid: 2.95e-08 CHOLMOD time 0.1055 resid: 2.95e-08 PCG time 0.1583 resid: 2.37e-01 flag: 1 iter: 21 PCG time 1.4698 resid: 2.37e-01 flag: 1 iter: 201 Problem = name: 'Cylshell/s1rmt3m1' title: 'FEM, cylindrical shell, 30x30 tri. mesh, stabilized MITC3 elements, R/t=10' date: '1997' author: 'R. Kouhia' A: [5489x5489 double] Zeros: [5489x5489 double] notes: [34x79 char] id: 1608 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.1150 resid: 4.19e-14 CHOLMOD time 0.1128 resid: 4.19e-14 PCG time 0.1585 resid: 2.31e-03 flag: 1 iter: 21 PCG time 1.4612 resid: 2.31e-03 flag: 1 iter: 201 Problem = name: 'Cylshell/s2rmt3m1' title: 'FEM, cylindrical shell, 30x30 tri. mesh, stabilized MITC3 elements, R/t=100' date: '1997' author: 'R. Kouhia' A: [5489x5489 double] Zeros: [5489x5489 double] notes: [34x79 char] id: 1609 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.1156 resid: 2.82e-11 CHOLMOD time 0.1138 resid: 2.82e-11 PCG time 0.1585 resid: 2.32e-02 flag: 1 iter: 21 PCG time 1.4652 resid: 2.32e-02 flag: 1 iter: 201 Problem = A: [17546x17546 double] title: 'bodyy4, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/bodyy4' Zeros: [17546x17546 double] id: 868 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.1655 resid: 4.93e-15 CHOLMOD time 0.1712 resid: 4.93e-15 PCG time 0.1980 resid: 1.76e-01 flag: 1 iter: 21 PCG time 1.2353 resid: 5.04e-06 flag: 0 iter: 130 Problem = name: 'UTEP/Dubcova1' title: 'Univ. Texas at El Paso, from a PDE solver' id: 1847 A: [16129x16129 double] date: '2007' author: 'L. Dubcova, J. Cerveny, and P. Solin' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 0.1795 resid: 2.47e-11 CHOLMOD time 0.1798 resid: 2.47e-11 PCG time 0.2497 resid: 5.41e+02 flag: 1 iter: 21 PCG time 1.4470 resid: 7.84e-04 flag: 0 iter: 122 Problem = title: 'S STIFFNESS MATRIX - MODULE OF AN OFFSHORE PLATFORM' A: [3948x3948 double] name: 'HB/bcsstk15' id: 37 date: '1985' author: 'M. Will' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.1426 resid: 1.31e-18 CHOLMOD time 0.1412 resid: 1.31e-18 PCG time 0.0980 resid: 2.49e-07 flag: 1 iter: 21 PCG time 0.9024 resid: 2.49e-07 flag: 1 iter: 201 Problem = A: [18589x18589 double] title: 'bodyy5, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/bodyy5' Zeros: [18589x18589 double] id: 869 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.1796 resid: 2.48e-15 CHOLMOD time 0.1863 resid: 2.48e-15 PCG time 0.2070 resid: 6.43e-02 flag: 1 iter: 21 PCG time 1.9895 resid: 5.90e-05 flag: 1 iter: 201 Problem = title: 'S STIFFNESS MATRIX - R.E.GINNA NUCLEAR POWER STATION' A: [11948x11948 double] name: 'HB/bcsstk18' id: 40 date: '1985' author: 'M. Will' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.1999 resid: 7.52e-20 CHOLMOD time 0.1993 resid: 7.52e-20 PCG time 0.1597 resid: 1.18e-07 flag: 1 iter: 21 PCG time 1.5040 resid: 1.18e-07 flag: 1 iter: 201 Problem = A: [19366x19366 double] title: 'bodyy6, with coordinates. From NASA, collected by Alex Pothen' name: 'Pothen/bodyy6' Zeros: [19366x19366 double] id: 870 aux: [1x1 struct] date: '2003' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 0.1972 resid: 1.71e-15 CHOLMOD time 0.1983 resid: 1.71e-15 PCG time 0.2155 resid: 9.73e-03 flag: 1 iter: 21 PCG time 2.0619 resid: 6.51e-04 flag: 1 iter: 201 Problem = title: 'STIFFNESS MATRIX, AIRPLANE ENGINE COMPONENT' A: [8032x8032 double] name: 'Boeing/bcsstk38' id: 343 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.1867 resid: 2.04e-19 CHOLMOD time 0.1808 resid: 2.04e-19 PCG time 0.2423 resid: 8.97e-09 flag: 1 iter: 21 PCG time 2.2402 resid: 8.97e-09 flag: 1 iter: 201 Problem = title: 'S STIFFNESS MATRIX - CORP. OF ENGINEERS DAM' A: [4884x4884 double] name: 'HB/bcsstk16' id: 38 date: '1985' author: 'M. Will' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.1928 resid: 8.54e-21 CHOLMOD time 0.1870 resid: 8.54e-21 PCG time 0.1957 resid: 3.22e-07 flag: 1 iter: 21 PCG time 1.5522 resid: 2.65e-13 flag: 0 iter: 176 Problem = name: 'Cylshell/s1rmq4m1' title: 'FEM, cylindrical shell, 30x30 quad. mesh, stabilized MITC4 elements, R/t=10' date: '1997' author: 'R. Kouhia' A: [5489x5489 double] Zeros: [5489x5489 double] notes: [38x79 char] id: 1605 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.1913 resid: 4.83e-14 CHOLMOD time 0.1856 resid: 4.83e-14 PCG time 0.1824 resid: 3.48e-03 flag: 1 iter: 21 PCG time 1.6675 resid: 3.48e-03 flag: 1 iter: 201 Problem = name: 'Cylshell/s3rmq4m1' title: 'FEM, cylindrical shell, 30x30 quad. mesh, stabilized MITC4 elements, R/t=1000' date: '1997' author: 'R. Kouhia' A: [5489x5489 double] Zeros: [5489x5489 double] notes: [38x79 char] id: 1607 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.1922 resid: 3.15e-08 CHOLMOD time 0.1857 resid: 3.15e-08 PCG time 0.1825 resid: 3.54e-01 flag: 1 iter: 21 PCG time 1.6680 resid: 3.54e-01 flag: 1 iter: 201 Problem = name: 'Cylshell/s2rmq4m1' title: 'FEM, cylindrical shell, 30x30 quad. mesh, stabilized MITC4 elements, R/t=100' date: '1997' author: 'R. Kouhia' A: [5489x5489 double] Zeros: [5489x5489 double] notes: [38x79 char] id: 1606 ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 0.2137 resid: 3.18e-11 CHOLMOD time 0.2065 resid: 3.18e-11 PCG time 0.1802 resid: 3.48e-02 flag: 1 iter: 21 PCG time 1.6758 resid: 3.48e-02 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - ELEVATED PRESSURE VESSEL' A: [10974x10974 double] name: 'HB/bcsstk17' id: 39 date: '1985' author: 'M. Will' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.2421 resid: 2.93e-18 CHOLMOD time 0.2343 resid: 2.93e-18 PCG time 0.3039 resid: 2.84e-07 flag: 1 iter: 21 PCG time 2.7943 resid: 2.84e-07 flag: 1 iter: 201 Problem = name: 'GHS_psdef/obstclae' title: 'Gould, Hu, & Scott: quadratic obstacle problem (CUTEr)' A: [40000x40000 double] id: 1314 date: '1983' author: 'R. Dembo, U. Tulowitzki' ed: 'P. Toint' kind: 'optimization problem' x=A\b time 0.3372 resid: 7.03e-12 CHOLMOD time 0.3537 resid: 7.03e-12 PCG time 0.4187 resid: 4.37e+00 flag: 1 iter: 21 PCG time 0.9146 resid: 1.67e-03 flag: 0 iter: 46 Problem = name: 'GHS_psdef/torsion1' title: 'Gould, Hu, & Scott: optimization problem (CUTEr)' A: [40000x40000 double] id: 1315 kind: 'duplicate optimization problem' notes: 'duplicate of GHS_psdef/obstclae' date: '1983' author: 'R. Dembo, U. Tulowitzki' ed: 'P. Toint' x=A\b time 0.3367 resid: 7.03e-12 CHOLMOD time 0.3474 resid: 7.03e-12 PCG time 0.4194 resid: 4.37e+00 flag: 1 iter: 21 PCG time 0.9184 resid: 1.67e-03 flag: 0 iter: 46 Problem = name: 'GHS_psdef/jnlbrng1' title: 'Gould, Hu, & Scott: quadratic journal bearing problem (CUTEr)' A: [40000x40000 double] id: 1312 date: '1991' author: 'J. More', G. Toraldo' ed: 'N. Gould, Y. Hu, J. Scott' kind: 'optimization problem' x=A\b time 0.3440 resid: 9.72e-12 CHOLMOD time 0.3576 resid: 9.72e-12 PCG time 0.4180 resid: 1.06e+02 flag: 1 iter: 21 PCG time 1.8716 resid: 8.13e-04 flag: 0 iter: 94 Problem = name: 'GHS_psdef/minsurfo' title: 'Gould, Hu, & Scott: minimum surface problem (CUTEr)' A: [40806x40806 double] id: 1313 date: '2000' author: 'E. Dolan, J. More'' ed: 'N. Gould' kind: 'optimization problem' x=A\b time 0.3496 resid: 7.55e-12 CHOLMOD time 0.3618 resid: 7.55e-12 PCG time 0.4285 resid: 4.26e+01 flag: 1 iter: 21 PCG time 1.3217 resid: 1.95e-03 flag: 0 iter: 65 Problem = name: 'Oberwolfach/gyro_k' title: 'Oberwolfach: butterfly gyro, K matrix' A: [17361x17361 double] id: 1202 kind: 'duplicate model reduction problem' date: '2004' author: 'D. Billger' ed: 'E. Rudnyi' x=A\b time 0.3481 resid: 2.63e-16 CHOLMOD time 0.3392 resid: 2.63e-16 PCG time 0.6722 resid: 1.27e-06 flag: 1 iter: 21 PCG time 6.1713 resid: 1.27e-06 flag: 1 iter: 201 Problem = name: 'Oberwolfach/gyro' title: 'Oberwolfach: butterfly gyro' A: [17361x17361 double] id: 1435 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2004' author: 'D. Billger' ed: 'E. Rudnyi' kind: 'model reduction problem' x=A\b time 0.3507 resid: 2.63e-16 CHOLMOD time 0.3394 resid: 2.63e-16 PCG time 0.6715 resid: 1.27e-06 flag: 1 iter: 21 PCG time 6.2168 resid: 1.27e-06 flag: 1 iter: 201 Problem = title: 'SYMMETRIC STIFFNESS MATRIX - 76 STORY SKYSCRAPER' A: [15439x15439 double] name: 'HB/bcsstk25' id: 47 date: '1984' author: 'J. Lewis' ed: 'I. Duff, R. Grimes, J. Lewis' kind: 'structural problem' x=A\b time 0.3689 resid: 3.78e-21 CHOLMOD time 0.3657 resid: 3.78e-21 PCG time 0.2395 resid: 6.75e-12 flag: 1 iter: 21 PCG time 2.2385 resid: 6.75e-12 flag: 1 iter: 201 Problem = name: 'GHS_psdef/wathen100' title: 'Gould,Higham,Scott: matrix from Andy Wathen, Oxford Univ.' A: [30401x30401 double] id: 1288 date: '2004' author: 'A. Wathen' ed: 'N. Gould, Y. Hu, J. Scott' kind: 'random 2D/3D problem' notes: 'rand('state',0); A = gallery('wathen',100,100) ; % (in MATLAB)' x=A\b time 0.3788 resid: 1.55e-14 CHOLMOD time 0.3785 resid: 1.55e-14 PCG time 0.4664 resid: 1.80e-03 flag: 1 iter: 21 PCG time 0.6599 resid: 2.37e-05 flag: 0 iter: 30 Problem = name: 'GHS_psdef/wathen120' title: 'Gould,Higham,Scott: matrix from Andy Wathen, Oxford Univ.' A: [36441x36441 double] id: 1289 date: '2004' author: 'A. Wathen' ed: 'N. Gould, Y. Hu, J. Scott' kind: 'random 2D/3D problem' notes: [5x64 char] x=A\b time 0.4676 resid: 1.87e-14 CHOLMOD time 0.4716 resid: 1.87e-14 PCG time 0.5866 resid: 2.17e-03 flag: 1 iter: 21 PCG time 0.8344 resid: 2.85e-05 flag: 0 iter: 30 Problem = title: 'SYMMETRIC TEST MATRIX FROM MSC/NASTRAN KNUCKLEF8.OUT2' A: [10848x10848 double] Zeros: [10848x10848 double] name: 'Boeing/msc10848' id: 361 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.5565 resid: 3.58e-19 CHOLMOD time 0.5306 resid: 3.58e-19 PCG time 0.7363 resid: 7.79e-09 flag: 1 iter: 21 PCG time 6.8354 resid: 7.79e-09 flag: 1 iter: 201 Problem = title: 'FEM CRYSTAL FREE VIBRATION MASS MATRIX' A: [13965x13965 double] name: 'Boeing/crystm02' id: 354 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'materials problem' x=A\b time 0.5924 resid: 1.12e+00 CHOLMOD time 0.5880 resid: 1.12e+00 PCG time 0.2662 resid: 8.53e+11 flag: 1 iter: 21 PCG time 0.4547 resid: 2.29e+09 flag: 0 iter: 36 Problem = A: [14822x14822 double] name: 'ACUSIM/Pres_Poisson' title: 'ACUSIM, Inc: computational fluid dynamics problem' b: [14822x1 double] id: 1184 date: '2004' author: 'F. Shakib' ed: 'T. Davis' kind: 'computational fluid dynamics problem' x=A\b time 0.5576 resid: 1.92e-09 CHOLMOD time 0.5435 resid: 1.92e-09 PCG time 0.4723 resid: 2.24e+02 flag: 1 iter: 21 PCG time 4.3963 resid: 2.24e+02 flag: 1 iter: 201 Problem = name: 'Schmid/thermal1' title: 'unstructured FEM, steady state thermal problem. Dani Schmid, Univ. Oslo' A: [82654x82654 double] b: [82654x1 double] id: 1402 date: '2006' author: 'D. Schmid' ed: 'T. Davis' kind: 'thermal problem' x=A\b time 0.9572 resid: 7.84e-08 CHOLMOD time 0.9609 resid: 7.84e-08 PCG time 0.9399 resid: 4.31e+03 flag: 1 iter: 21 PCG time 9.0897 resid: 4.31e+03 flag: 1 iter: 201 Problem = title: 'STIFFNESS MATRIX, AUTOMOBILE SHOCK ABSORBER ASSEMBLY' A: [23052x23052 double] name: 'Boeing/bcsstk36' id: 341 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.6613 resid: 9.12e-15 CHOLMOD time 0.6387 resid: 9.12e-15 PCG time 0.7699 resid: 4.02e-05 flag: 1 iter: 21 PCG time 7.1611 resid: 4.02e-05 flag: 1 iter: 201 Problem = name: 'GHS_psdef/gridgena' title: 'Gould, Hu, & Scott: grid generation optimization (CUTEr)' A: [48962x48962 double] id: 1311 date: '1991' author: 'P. Barrera, A. Perez, L. Castellanos' ed: 'P. Toint' kind: 'optimization problem' x=A\b time 0.7025 resid: 6.78e-12 CHOLMOD time 0.7050 resid: 6.78e-12 PCG time 0.6209 resid: 7.19e-01 flag: 1 iter: 21 PCG time 5.9478 resid: 2.34e-01 flag: 1 iter: 201 Problem = title: 'SYMMETRIC TEST MATRIX FROM MSC/NASTRAN SHOCKF8.OUT2' A: [23052x23052 double] Zeros: [23052x23052 double] name: 'Boeing/msc23052' id: 362 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 0.6902 resid: 2.18e-15 CHOLMOD time 0.6608 resid: 2.18e-15 PCG time 0.8241 resid: 1.00e-05 flag: 1 iter: 21 PCG time 7.6866 resid: 1.00e-05 flag: 1 iter: 201 Problem = title: 'Portfolio optim, 512 scenarios, Ed Rothberg, SGI, John Mulvey,Princeton' A: [74752x74752 double] name: 'Mulvey/finan512' id: 752 date: '1997' author: 'A. Berger, J. Mulvey, E. Rothberg, R. Vanderbei' ed: 'E. Rothberg' kind: 'economic problem' x=A\b time 0.9980 resid: 1.37e-13 CHOLMOD time 1.0102 resid: 1.37e-13 PCG time 0.6847 resid: 4.09e-04 flag: 0 iter: 16 PCG time 0.6854 resid: 4.09e-04 flag: 0 iter: 16 Problem = name: 'UTEP/Dubcova2' title: 'Univ. Texas at El Paso, from a PDE solver' id: 1848 A: [65025x65025 double] date: '2007' author: 'L. Dubcova, J. Cerveny, and P. Solin' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 0.9586 resid: 4.04e-10 CHOLMOD time 0.9295 resid: 4.04e-10 PCG time 1.1668 resid: 2.30e+03 flag: 1 iter: 21 PCG time 11.1716 resid: 8.74e-02 flag: 1 iter: 201 Problem = title: 'STRUCTURE FROM NASA LANGLEY, ACCURACY PROBLEM ON Y-MP' A: [16146x16146 double] b: [16146x1 double] name: 'Simon/olafu' id: 813 date: '1993' author: 'H. Simon' ed: 'H. Simon' kind: 'structural problem' x=A\b time 0.8298 resid: 2.52e-18 CHOLMOD time 0.8088 resid: 2.52e-18 PCG time 0.6417 resid: 5.93e-09 flag: 1 iter: 21 PCG time 5.9237 resid: 5.93e-09 flag: 1 iter: 201 Problem = name: 'GHS_psdef/cvxbqp1' title: 'Gould, Hu, & Scott: barrier Hessian from convex QP (CUTEr)' A: [50000x50000 double] id: 1310 date: '1995' author: 'N. Gould' ed: 'N. Gould' kind: 'optimization problem' x=A\b time 1.9815 resid: 8.73e-14 CHOLMOD time 1.5587 resid: 8.93e-14 PCG time 0.6516 resid: 1.66e-02 flag: 1 iter: 21 PCG time 6.2747 resid: 1.66e-02 flag: 1 iter: 201 Problem = title: 'FEM CRYSTAL FREE VIBRATION MASS MATRIX' A: [24696x24696 double] name: 'Boeing/crystm03' id: 355 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'materials problem' x=A\b time 1.3558 resid: 3.65e+00 CHOLMOD time 1.3421 resid: 3.65e+00 PCG time 0.4886 resid: 2.84e+12 flag: 1 iter: 21 PCG time 0.8282 resid: 8.40e+09 flag: 0 iter: 36 Problem = name: 'GHS_psdef/vanbody' title: 'stiffness matrix' A: [47072x47072 double] Zeros: [47072x47072 double] id: 1287 date: '2004' author: 'S. Mayer' ed: 'J. Koster' kind: 'structural problem' x=A\b time 1.4138 resid: 2.58e-15 CHOLMOD time 1.4764 resid: 2.58e-15 PCG time 1.5531 resid: 6.11e-08 flag: 1 iter: 21 PCG time 14.4151 resid: 6.11e-08 flag: 1 iter: 201 Problem = name: 'GHS_psdef/oilpan' title: ' 1. TEST MATRIX FROM INPRO FOR PARASOL (OIL-PAN)' A: [73752x73752 double] Zeros: [73752x73752 double] id: 1270 date: '2004' author: 'J. Weiher' ed: 'J. Koster' kind: 'structural problem' x=A\b time 1.6189 resid: 1.73e-13 CHOLMOD time 1.5737 resid: 1.73e-13 PCG time 1.6578 resid: 3.06e-04 flag: 1 iter: 21 PCG time 15.5051 resid: 3.06e-04 flag: 1 iter: 201 Problem = name: 'UTEP/Dubcova3' title: 'Univ. Texas at El Paso, from a PDE solver' id: 1849 A: [146689x146689 double] date: '2007' author: 'L. Dubcova, J. Cerveny, and P. Solin' ed: 'T. Davis' kind: '2D/3D problem' Zeros: [146689x146689 double] x=A\b time 2.2688 resid: 4.62e-10 CHOLMOD time 2.1859 resid: 4.62e-10 PCG time 3.1845 resid: 2.85e+03 flag: 1 iter: 21 PCG time 30.1833 resid: 1.65e-01 flag: 1 iter: 201 Problem = title: 'BUCKLING PROBLEM FOR CONTAINER MODEL, ARTHUR RAEFSKY, CENTRIC ENG.' A: [19779x19779 double] Zeros: [19779x19779 double] b: [19779x1 double] name: 'Simon/raefsky4' id: 817 date: '1993' author: 'A. Raefsky' ed: 'H. Simon' kind: 'structural problem' x=A\b time 2.4162 resid: 6.31e-14 CHOLMOD time 1.7545 resid: 4.87e-14 PCG time 0.8386 resid: 1.60e-08 flag: 1 iter: 21 PCG time 7.7723 resid: 1.60e-08 flag: 1 iter: 201 Problem = name: 'AMD/G2_circuit' title: 'circuit simulation problem, Ufuk Okuyucu, AMD, Inc.' A: [150102x150102 double] id: 1412 date: '2006' author: 'U. Okuyucu' ed: 'T. Davis' kind: 'circuit simulation problem' x=A\b time 3.4994 resid: 4.64e-11 CHOLMOD time 4.2847 resid: 4.75e-11 PCG time 1.4692 resid: 3.30e+00 flag: 1 iter: 21 PCG time 14.2033 resid: 3.30e+00 flag: 1 iter: 201 Problem = title: 'CT20 ENGINE BLOCK -- STIFFNESS MATRIX' A: [52329x52329 double] Zeros: [52329x52329 double] name: 'Boeing/ct20stif' id: 356 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 3.5311 resid: 4.75e-16 CHOLMOD time 3.6723 resid: 5.26e-16 PCG time 1.7469 resid: 2.92e-08 flag: 1 iter: 21 PCG time 16.2299 resid: 2.92e-08 flag: 1 iter: 201 Problem = title: 'STRUCTURE FROM NASA LANGLEY, SHUTTLE ROCKET BOOSTER' A: [54870x54870 double] b: [54870x1 double] name: 'Nasa/nasasrb' id: 761 date: '1995' author: 'NASA' ed: 'G. Kumfert, A. Pothen' kind: 'structural problem' x=A\b time 3.0770 resid: 2.23e-15 CHOLMOD time 3.0104 resid: 2.23e-15 PCG time 1.8076 resid: 6.77e-06 flag: 1 iter: 21 PCG time 16.7241 resid: 6.77e-06 flag: 1 iter: 201 Problem = name: 'GHS_psdef/apache1' title: 'SPD matrix (finite difference 3D) from APACHE small' A: [80800x80800 double] id: 1422 date: '2006' author: '' ed: 'N. Gould, Y. Hu, J. Scott' kind: 'structural problem' x=A\b time 4.2426 resid: 9.28e-12 CHOLMOD time 5.5804 resid: 9.88e-12 PCG time 0.8835 resid: 1.12e-01 flag: 1 iter: 21 PCG time 8.4978 resid: 1.12e-01 flag: 1 iter: 201 Problem = A: [9000x9000 double] name: 'ND/nd3k' title: 'ND problem set, matrix nd3k' id: 936 date: '2003' author: 'author unknown' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 11.7310 resid: 3.63e-08 CHOLMOD time 9.1562 resid: 5.02e-08 PCG time 1.7557 resid: 2.31e+01 flag: 1 iter: 21 PCG time 16.0008 resid: 2.31e+01 flag: 1 iter: 201 Problem = title: 'DNV-Ex 2 : Ship structure, predesign model-1999-01-17' A: [34920x34920 double] Zeros: [34920x34920 double] name: 'DNVS/ship_001' id: 1277 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 5.7420 resid: 4.26e-19 CHOLMOD time 6.3672 resid: 4.51e-19 PCG time 2.3047 resid: 7.94e-09 flag: 1 iter: 21 PCG time 21.2352 resid: 7.94e-09 flag: 1 iter: 201 Problem = name: 'GHS_psdef/s3dkt3m2' title: 'FEM, cylindrical shell, 150x100 tri. mesh, R/t=1000' A: [90449x90449 double] Zeros: [90449x90449 double] id: 1276 date: '1997' author: 'R. Kouhia' notes: [34x79 char] ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 5.0321 resid: 1.06e-05 CHOLMOD time 5.1203 resid: 1.11e-05 PCG time 2.5384 resid: 4.55e+00 flag: 1 iter: 21 PCG time 23.6219 resid: 4.55e+00 flag: 1 iter: 201 Problem = name: 'DNVS/x104' title: 'DNV-Ex 8 : SESAM test example no 104-1999-01-17' A: [108384x108384 double] Zeros: [108384x108384 double] id: 1290 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 6.3138 resid: 6.58e-09 CHOLMOD time 6.1523 resid: 6.58e-09 PCG time 5.4258 resid: 1.09e-01 flag: 1 iter: 21 PCG time 50.0736 resid: 1.09e-01 flag: 1 iter: 201 Problem = name: 'GHS_psdef/hood' title: ' INDEED Test Matrix (DC-mh)' A: [220542x220542 double] Zeros: [220542x220542 double] id: 1266 date: '2004' author: 'J. Weiher' ed: 'J. Koster' kind: 'structural problem' x=A\b time 6.5596 resid: 7.21e-17 CHOLMOD time 6.2978 resid: 7.21e-17 PCG time 7.0876 resid: 3.14e-04 flag: 1 iter: 21 PCG time 66.1514 resid: 3.14e-04 flag: 1 iter: 201 Problem = name: 'GHS_psdef/bmw7st_1' title: 'stiffness matrix' A: [141347x141347 double] Zeros: [141347x141347 double] id: 1253 date: '2004' author: 'S. Mayer' ed: 'J. Koster' kind: 'structural problem' x=A\b time 7.9990 resid: 1.27e-16 CHOLMOD time 8.0698 resid: 7.75e-17 PCG time 4.9142 resid: 1.32e-11 flag: 1 iter: 21 PCG time 45.6650 resid: 1.32e-11 flag: 1 iter: 201 Problem = name: 'GHS_psdef/s3dkq4m2' title: 'FEM, cylindrical shell, 150x100 quad. mesh, R/t=1000' A: [90449x90449 double] Zeros: [90449x90449 double] id: 1275 date: '1997' author: 'R. Kouhia' notes: [38x79 char] ed: 'R. Boisvert, R. Pozo, K. Remington, B. Miller, R. Lipman, R. Barrett, J. Dongarra' kind: 'structural problem' x=A\b time 8.3216 resid: 1.35e-05 CHOLMOD time 7.7521 resid: 1.26e-05 PCG time 2.9131 resid: 8.04e+00 flag: 1 iter: 21 PCG time 27.0454 resid: 8.04e+00 flag: 1 iter: 201 Problem = name: 'DNVS/thread' title: 'DNV-Ex 7 : Threaded connector/contact problem-1999-01-17' A: [29736x29736 double] Zeros: [29736x29736 double] id: 1283 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 15.7415 resid: 1.20e-22 CHOLMOD time 13.6197 resid: 1.24e-22 PCG time 2.5279 resid: 7.56e-16 flag: 1 iter: 21 PCG time 23.0220 resid: 7.56e-16 flag: 1 iter: 201 Problem = name: 'DNVS/m_t1' title: 'DNV-Ex 1 : Tubular joint-1999-01-17' A: [97578x97578 double] id: 1269 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 11.0452 resid: 9.54e-17 CHOLMOD time 12.0871 resid: 9.54e-17 PCG time 5.9870 resid: 2.19e-08 flag: 1 iter: 21 PCG time 54.6072 resid: 2.19e-08 flag: 1 iter: 201 Problem = title: 'CFD, symmetric pressure matrix, from Ed Rothberg, Silicon Graphics, Inc.' A: [70656x70656 double] Zeros: [70656x70656 double] name: 'Rothberg/cfd1' id: 804 date: '1997' author: 'E. Rothberg' ed: 'T. Davis' kind: 'computational fluid dynamics problem' x=A\b time 14.9956 resid: 4.76e-08 CHOLMOD time 8.3156 resid: 4.52e-08 PCG time 1.5006 resid: 3.96e+03 flag: 1 iter: 21 PCG time 14.0921 resid: 3.96e+03 flag: 1 iter: 201 Problem = name: 'Wissgott/parabolic_fem' title: 'Parabolic FEM, diffusion-convection reaction, constant homogenous diffusion' A: [525825x525825 double] id: 1853 date: '2007' author: 'P. Wissgott' ed: 'T. Davis' kind: 'computational fluid dynamics problem' b: [525825x1 double] x=A\b time 12.5373 resid: 5.43e-06 CHOLMOD time 12.4814 resid: 5.43e-06 PCG time 6.7115 resid: 3.29e+05 flag: 1 iter: 21 PCG time 64.0899 resid: 7.20e+04 flag: 1 iter: 201 Problem = name: 'GHS_psdef/crankseg_1' title: 'OUTPUT4-Matrix' A: [52804x52804 double] id: 1257 date: '2004' author: 'S. Mayer' ed: 'J. Koster' kind: 'structural problem' x=A\b time 17.6549 resid: 6.32e-20 CHOLMOD time 14.6550 resid: 6.08e-20 PCG time 6.1898 resid: 4.21e-07 flag: 1 iter: 21 PCG time 85.2838 resid: 1.20e-07 flag: 1 iter: 201 Problem = A: [66127x66127 double] title: '3D acoustic FE mass matrix. A. Cunningham, Vibro-Acoustic Sciences Inc' name: 'Cunningham/qa8fm' id: 845 aux: [1x1 struct] date: '2002' author: 'A. Cunningham' ed: 'T. Davis' kind: 'acoustics problem' x=A\b time 20.8030 resid: 1.00e-08 CHOLMOD time 9.4980 resid: 9.41e-09 PCG time 1.3737 resid: 6.77e+03 flag: 1 iter: 21 PCG time 2.2428 resid: 2.89e+01 flag: 0 iter: 35 Problem = name: 'DNVS/shipsec1' title: 'DNV-Ex 4 : Ship section/detail from production run-1999-01-17' A: [140874x140874 double] Zeros: [140874x140874 double] id: 1279 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 19.3979 resid: 2.84e-19 CHOLMOD time 22.1690 resid: 3.10e-19 PCG time 2.9051 resid: 2.24e-09 flag: 1 iter: 21 PCG time 27.2997 resid: 2.24e-09 flag: 1 iter: 201 Problem = name: 'DNVS/shipsec8' title: 'DNV-Ex 6 : Ship section/detail from production run-1999-01-17' A: [114919x114919 double] Zeros: [114919x114919 double] id: 1281 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 30.4874 resid: 6.56e-19 CHOLMOD time 20.8832 resid: 7.37e-19 PCG time 2.5757 resid: 1.70e-08 flag: 1 iter: 21 PCG time 24.0367 resid: 1.70e-08 flag: 1 iter: 201 Problem = name: 'INPRO/msdoor' title: 'medium size door' A: [415863x415863 double] Zeros: [415863x415863 double] id: 1644 notes: 'from Parasol, http://www.parallab.uib.no/projects/parasol/data' date: '2005' author: 'J. Weiher' ed: 'J. Koster' kind: 'structural problem' x=A\b time 14.0317 resid: 2.30e-13 CHOLMOD time 13.5262 resid: 2.30e-13 PCG time 14.5899 resid: 6.96e-04 flag: 1 iter: 21 PCG time 132.7805 resid: 6.96e-04 flag: 1 iter: 201 Problem = A: [18000x18000 double] name: 'ND/nd6k' title: 'ND problem set, matrix nd6k' id: 937 date: '2003' author: 'author unknown' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time 55.4656 resid: 6.91e-08 CHOLMOD time 38.5838 resid: 9.63e-08 PCG time 3.7849 resid: 4.46e+01 flag: 1 iter: 21 PCG time 34.7158 resid: 4.46e+01 flag: 1 iter: 201 Problem = name: 'BenElechi/BenElechi1' title: 'problem with many sparse right-hand sides, S. Ben Elechi' A: [245874x245874 double] id: 1850 date: '2007' author: 'S. Ben Elechi' ed: 'T. Davis' kind: '2D/3D problem' b: [245874x40543 double] x=A\b time 15.9155 resid: 2.85e-07 CHOLMOD time 14.8383 resid: 2.86e-07 PCG time 8.5899 resid: 2.97e+01 flag: 1 iter: 21 PCG time 79.7850 resid: 2.97e+01 flag: 1 iter: 201 Problem = name: 'GHS_psdef/crankseg_2' title: 'OUTPUT4-Matrix' A: [63838x63838 double] id: 1258 date: '2004' author: 'S. Mayer' ed: 'J. Koster' kind: 'structural problem' x=A\b time 30.2322 resid: 7.46e-20 CHOLMOD time 20.1360 resid: 6.83e-20 PCG time 8.0622 resid: 4.90e-07 flag: 1 iter: 21 PCG time 74.4840 resid: 1.65e-07 flag: 1 iter: 201 Problem = name: 'Oberwolfach/boneS01' title: 'Oberwolfach: 3D trabecular bone' A: [127224x127224 double] Zeros: [127224x127224 double] id: 1454 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2006' author: 'B. van Rietbergen, E. Rudnyi, J. Korvink' ed: 'E. Rudnyi' kind: 'model reduction problem' x=A\b time 37.5090 resid: 2.88e-11 CHOLMOD time 22.2832 resid: 2.77e-11 PCG time 3.8868 resid: 8.62e-01 flag: 1 iter: 21 PCG time 36.1085 resid: 8.62e-01 flag: 1 iter: 201 Problem = title: 'PRESSURIZED WIND TUNNEL -- STIFFNESS MATRIX' A: [217918x217918 double] Zeros: [217918x217918 double] name: 'Boeing/pwtk' id: 369 date: '1995' author: 'R. Grimes' ed: 'T. Davis' kind: 'structural problem' x=A\b time 19.4880 resid: 2.34e-14 CHOLMOD time 13.9999 resid: 2.30e-14 PCG time 7.5524 resid: 5.99e-04 flag: 1 iter: 21 PCG time 69.7983 resid: 5.99e-04 flag: 1 iter: 201 Problem = name: 'DNVS/shipsec5' title: 'DNV-PARASOL Ship section 5-1999-01-15' A: [179860x179860 double] Zeros: [179860x179860 double] id: 1280 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 32.1748 resid: 7.26e-19 Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 1.74751e-16. CHOLMOD time 31.0125 resid: 7.61e-19 PCG time 3.7657 resid: 1.85e-08 flag: 1 iter: 21 PCG time 35.7135 resid: 1.85e-08 flag: 1 iter: 201 Problem = name: 'Schmid/thermal2' title: 'unstructured FEM, steady state thermal problem. Dani Schmid, Univ. Oslo' A: [1228045x1228045 double] b: [1228045x1 double] id: 1403 date: '2006' author: 'D. Schmid' ed: 'T. Davis' kind: 'thermal problem' x=A\b time 29.7424 resid: 1.74e-05 CHOLMOD time 25.0315 resid: 1.74e-05 PCG time 14.7659 resid: 6.30e+04 flag: 1 iter: 21 PCG time 144.8764 resid: 6.30e+04 flag: 1 iter: 201 Problem = title: 'CFD, symmetric pressure matrix, from Ed Rothberg, Silicon Graphics, Inc.' A: [123440x123440 double] Zeros: [123440x123440 double] name: 'Rothberg/cfd2' id: 805 date: '1997' author: 'E. Rothberg' ed: 'T. Davis' kind: 'computational fluid dynamics problem' x=A\b time 39.0543 resid: 1.06e-07 CHOLMOD time 17.1909 resid: 1.01e-07 PCG time 2.5345 resid: 7.02e+03 flag: 1 iter: 21 PCG time 23.9128 resid: 7.02e+03 flag: 1 iter: 201 Problem = name: 'DNVS/ship_003' title: 'DNV-Ex 3 : Ship structure from production run-1999-01-17' A: [121728x121728 double] Zeros: [121728x121728 double] id: 1278 date: '1999' author: 'C. Damhaug' ed: 'J. Koster' kind: 'structural problem' x=A\b time 56.5480 resid: 8.98e-24 Warning: Matrix is close to singular or badly scaled. Results may be inaccurate. RCOND = 1.05634e-16. CHOLMOD time 36.5652 resid: 9.22e-24 PCG time 2.9034 resid: 1.75e-14 flag: 1 iter: 21 PCG time 27.2362 resid: 1.75e-14 flag: 1 iter: 201 Problem = name: 'GHS_psdef/bmwcra_1' title: 'stiffness matrix' A: [148770x148770 double] Zeros: [148770x148770 double] id: 1254 date: '2004' author: 'S. Mayer' ed: 'J. Koster' kind: 'structural problem' x=A\b time 40.2940 resid: 3.33e-12 CHOLMOD time 28.6618 resid: 3.37e-12 PCG time 6.6601 resid: 1.60e-03 flag: 1 iter: 21 PCG time 61.6862 resid: 1.60e-03 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_shell7' title: 'Olaf Schenk, Univ. Basel: AutoForm Eng. GmbH, Zurich. sheet metal forming. positive definite' A: [504855x504855 double] Zeros: [504855x504855 double] b: [504855x1 double] id: 946 kind: 'subsequent structural problem' notes: 'next: Schenk_AFE/af_shell8 first: Schenk_AFE/af_shell1' date: '2003' author: 'AutoForm Eng.' ed: 'O. Schenk' x=A\b time 31.0400 resid: 8.88e-13 CHOLMOD time 29.6084 resid: 8.93e-13 PCG time 12.7714 resid: 5.27e-02 flag: 1 iter: 21 PCG time 119.6129 resid: 9.51e-03 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_shell8' title: 'Olaf Schenk, Univ. Basel: AutoForm Eng. GmbH, Zurich. sheet metal forming. positive definite' A: [504855x504855 double] Zeros: [504855x504855 double] b: [504855x1 double] id: 947 kind: 'subsequent structural problem' notes: 'next: Schenk_AFE/af_shell9 first: Schenk_AFE/af_shell1' date: '2003' author: 'AutoForm Eng.' ed: 'O. Schenk' x=A\b time 31.0059 resid: 8.88e-13 CHOLMOD time 28.8942 resid: 8.93e-13 PCG time 12.7972 resid: 5.27e-02 flag: 1 iter: 21 PCG time 119.6618 resid: 9.51e-03 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_shell3' title: 'Olaf Schenk, Univ. Basel: AutoForm Eng. GmbH, Zurich. sheet metal forming. positive definite' A: [504855x504855 double] Zeros: [504855x504855 double] b: [504855x1 double] id: 942 kind: 'subsequent structural problem' notes: 'next: Schenk_AFE/af_shell4 first: Schenk_AFE/af_shell1' date: '2003' author: 'AutoForm Eng.' ed: 'O. Schenk' x=A\b time 34.6635 resid: 8.84e-13 CHOLMOD time 28.8432 resid: 8.96e-13 PCG time 13.2308 resid: 5.27e-02 flag: 1 iter: 21 PCG time 119.5848 resid: 9.34e-03 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_shell4' title: 'Olaf Schenk, Univ. Basel: AutoForm Eng. GmbH, Zurich. sheet metal forming. positive definite' A: [504855x504855 double] Zeros: [504855x504855 double] b: [504855x1 double] id: 943 kind: 'subsequent structural problem' notes: 'next: Schenk_AFE/af_shell5 first: Schenk_AFE/af_shell1' date: '2003' author: 'AutoForm Eng.' ed: 'O. Schenk' x=A\b time 34.5952 resid: 8.84e-13 CHOLMOD time 28.7922 resid: 8.96e-13 PCG time 12.7664 resid: 5.27e-02 flag: 1 iter: 21 PCG time 119.5535 resid: 9.34e-03 flag: 1 iter: 201 Problem = A: [60000x60000 double] name: 'Andrews/Andrews' title: 'Eigenvalue problem, Stuart Andrews, Brown Univ. stu@cs.brown.edu' id: 924 date: '2003' author: 'S. Andrews' ed: 'T. Davis' kind: 'computer graphics/vision problem' x=A\b time 168.4201 resid: 9.11e+03 CHOLMOD time 24.4550 resid: 5.57e+04 PCG time 1.6177 resid: 4.30e+02 flag: 1 iter: 21 PCG time 9.3150 resid: 4.30e+02 flag: 4 iter: 122 Problem = name: 'Schenk_AFE/af_0_k101' title: 'AutoForm Eng, Zurich. pos. def. sheet metal forming' author: 'AutoForm Eng.' date: '2006' A: [503625x503625 double] b: [503625x1 double] id: 1580 ed: 'O. Schenk' kind: 'structural problem' x=A\b time 41.7731 resid: 5.51e-11 CHOLMOD time 31.4304 resid: 5.58e-11 PCG time 12.7255 resid: 7.25e-02 flag: 1 iter: 21 PCG time 118.3319 resid: 7.25e-02 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_1_k101' title: 'AutoForm Eng, Zurich. pos. def. sheet metal forming' author: 'AutoForm Eng.' date: '2006' A: [503625x503625 double] b: [503625x1 double] id: 1581 ed: 'O. Schenk' kind: 'structural problem' x=A\b time 41.8334 resid: 4.85e-11 CHOLMOD time 31.4828 resid: 4.93e-11 PCG time 12.6893 resid: 7.18e-02 flag: 1 iter: 21 PCG time 118.5623 resid: 7.18e-02 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_2_k101' title: 'AutoForm Eng, Zurich. pos. def. sheet metal forming' author: 'AutoForm Eng.' date: '2006' A: [503625x503625 double] b: [503625x1 double] id: 1582 ed: 'O. Schenk' kind: 'structural problem' x=A\b time 41.7654 resid: 5.45e-11 CHOLMOD time 31.4469 resid: 5.51e-11 PCG time 12.6876 resid: 7.47e-02 flag: 1 iter: 21 PCG time 118.5353 resid: 7.47e-02 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_3_k101' title: 'AutoForm Eng, Zurich. pos. def. sheet metal forming' author: 'AutoForm Eng.' date: '2006' A: [503625x503625 double] b: [503625x1 double] id: 1583 ed: 'O. Schenk' kind: 'structural problem' x=A\b time 41.7682 resid: 2.67e-11 CHOLMOD time 31.4669 resid: 2.69e-11 PCG time 12.6773 resid: 7.43e-02 flag: 1 iter: 21 PCG time 118.6486 resid: 7.43e-02 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_4_k101' title: 'AutoForm Eng, Zurich. pos. def. sheet metal forming' author: 'AutoForm Eng.' date: '2006' A: [503625x503625 double] b: [503625x1 double] id: 1584 ed: 'O. Schenk' kind: 'structural problem' x=A\b time 41.6585 resid: 4.39e-11 CHOLMOD time 31.6005 resid: 4.45e-11 PCG time 12.6686 resid: 7.44e-02 flag: 1 iter: 21 PCG time 118.2160 resid: 7.44e-02 flag: 1 iter: 201 Problem = name: 'Schenk_AFE/af_5_k101' title: 'AutoForm Eng, Zurich. pos. def. sheet metal forming' author: 'AutoForm Eng.' date: '2006' A: [503625x503625 double] b: [503625x1 double] id: 1585 ed: 'O. Schenk' kind: 'structural problem' x=A\b time 41.7028 resid: 4.31e-11 CHOLMOD time 31.5467 resid: 4.36e-11 PCG time 12.6880 resid: 7.44e-02 flag: 1 iter: 21 PCG time 118.4182 resid: 7.44e-02 flag: 1 iter: 201 Problem = name: 'GHS_psdef/ldoor' title: ' INDEED Test Matrix' A: [952203x952203 double] Zeros: [952203x952203 double] id: 1268 date: '2004' author: 'J. Weiher' ed: 'J. Koster' kind: 'structural problem' x=A\b time Inf resid: Inf CHOLMOD time Inf resid: Inf PCG time 30.7950 resid: 1.94e-03 flag: 1 iter: 21 PCG time 287.2244 resid: 1.94e-03 flag: 1 iter: 201 Problem = A: [36000x36000 double] name: 'ND/nd12k' title: 'ND problem set, matrix nd12k' id: 938 date: '2003' author: 'author unknown' ed: 'T. Davis' kind: '2D/3D problem' x=A\b time Inf resid: Inf CHOLMOD time 145.4055 resid: 1.60e-07 PCG time 7.8370 resid: 8.53e+01 flag: 1 iter: 21 PCG time 71.7241 resid: 8.53e+01 flag: 1 iter: 201 Problem = name: 'GHS_psdef/apache2' title: 'SPD matrix (finite difference 3D) from APACHE small' A: [715176x715176 double] id: 1423 date: '2006' author: '' ed: 'N. Gould, Y. Hu, J. Scott' kind: 'structural problem' x=A\b time 91.5219 resid: 3.16e-10 CHOLMOD time 82.0454 resid: 3.23e-10 PCG time 7.5707 resid: 2.98e+00 flag: 1 iter: 21 PCG time 72.8271 resid: 2.98e+00 flag: 1 iter: 201 Problem = name: 'AMD/G3_circuit' title: 'circuit simulation problem, Ufuk Okuyucu, AMD, Inc.' A: [1585478x1585478 double] id: 1421 date: '2006' author: 'U. Okuyucu' ed: 'T. Davis' kind: 'circuit simulation problem' x=A\b time 104.7279 resid: 4.79e-10 CHOLMOD time 75.8203 resid: 4.84e-10 PCG time 21.6422 resid: 3.26e+01 flag: 1 iter: 21 PCG time 152.0681 resid: 3.26e+01 flag: 1 iter: 201 Problem = name: 'GHS_psdef/inline_1' title: 'stiffness matrix' A: [503712x503712 double] Zeros: [503712x503712 double] id: 1267 date: '2004' author: 'S. Mayer' ed: 'J. Koster' kind: 'structural problem' x=A\b time Inf resid: Inf CHOLMOD time Inf resid: Inf PCG time 24.3035 resid: 1.31e-03 flag: 1 iter: 21 PCG time 223.7735 resid: 1.31e-03 flag: 1 iter: 201 Problem = name: 'Koutsovasilis/F1' title: 'Matrix from Panagiotis Koutsovasilis, Technische Universita(")t Dresden' A: [343791x343791 double] b: [343791x33 double] id: 1411 date: '2006' author: 'P. Koutsovasilis' ed: 'T. Davis' kind: 'structural problem' notes: 'Stiffness matrix from an AUDI engine crankshaft' x=A\b time Inf resid: Inf CHOLMOD time Inf resid: Inf PCG time 20.0007 resid: 1.33e-03 flag: 1 iter: 21 PCG time 187.3489 resid: 1.33e-03 flag: 1 iter: 201 Problem = name: 'Oberwolfach/boneS10' title: 'Oberwolfach: 3D trabecular bone' A: [914898x914898 double] Zeros: [914898x914898 double] id: 1455 notes: 'Primary matrix in this model reduction problem is the Oberwolfach K matrix' aux: [1x1 struct] date: '2006' author: 'B. van Rietbergen, E. Rudnyi, J. Korvink' ed: 'E. Rudnyi' kind: 'model reduction problem'