UF Sparse Matrix Collection

UF Sparse Matrix Collection: HB group.

Click here for a description of the HB group.

Click here for a list of all matrix groups.

matrix graph Group/Name id download # rows # cols nonzeros type sym spd?
HB/1138_bus 1 MAT, MM, RB 1,138 1,138 4,054 real symmetric yes yes

HB/494_bus 2 MAT, MM, RB 494 494 1,666 real symmetric yes yes

HB/662_bus 3 MAT, MM, RB 662 662 2,474 real symmetric yes yes

HB/685_bus 4 MAT, MM, RB 685 685 3,249 real symmetric yes yes

HB/abb313 5 MAT, MM, RB 313 176 1,557 binary rectangular - no

HB/arc130 6 MAT, MM, RB 130 130 1,037 real unsymmetric 0% no

HB/ash219 7 MAT, MM, RB 219 85 438 binary rectangular - no

HB/ash292 8 MAT, MM, RB 292 292 2,208 binary symmetric yes no

HB/ash331 9 MAT, MM, RB 331 104 662 binary rectangular - no

HB/ash608 10 MAT, MM, RB 608 188 1,216 binary rectangular - no

HB/ash85 11 MAT, MM, RB 85 85 523 binary symmetric yes no

HB/ash958 12 MAT, MM, RB 958 292 1,916 binary rectangular - no

HB/bcspwr01 13 MAT, MM, RB 39 39 131 binary symmetric yes no

HB/bcspwr02 14 MAT, MM, RB 49 49 167 binary symmetric yes no

HB/bcspwr03 15 MAT, MM, RB 118 118 476 binary symmetric yes no

HB/bcspwr04 16 MAT, MM, RB 274 274 1,612 binary symmetric yes no

HB/bcspwr05 17 MAT, MM, RB 443 443 1,623 binary symmetric yes no

HB/bcspwr06 18 MAT, MM, RB 1,454 1,454 5,300 binary symmetric yes no

HB/bcspwr07 19 MAT, MM, RB 1,612 1,612 5,824 binary symmetric yes no

HB/bcspwr08 20 MAT, MM, RB 1,624 1,624 6,050 binary symmetric yes no

HB/bcspwr09 21 MAT, MM, RB 1,723 1,723 6,511 binary symmetric yes no

HB/bcspwr10 22 MAT, MM, RB 5,300 5,300 21,842 binary symmetric yes no

HB/bcsstk01 23 MAT, MM, RB 48 48 400 real symmetric yes yes

HB/bcsstk02 24 MAT, MM, RB 66 66 4,356 real symmetric yes yes

HB/bcsstk03 25 MAT, MM, RB 112 112 640 real symmetric yes yes

HB/bcsstk04 26 MAT, MM, RB 132 132 3,648 real symmetric yes yes

HB/bcsstk05 27 MAT, MM, RB 153 153 2,423 real symmetric yes yes

HB/bcsstk06 28 MAT, MM, RB 420 420 7,860 real symmetric yes yes

HB/bcsstk07 29 MAT, MM, RB 420 420 7,860 real symmetric yes yes

HB/bcsstk08 30 MAT, MM, RB 1,074 1,074 12,960 real symmetric yes yes

HB/bcsstk09 31 MAT, MM, RB 1,083 1,083 18,437 real symmetric yes yes

HB/bcsstk10 32 MAT, MM, RB 1,086 1,086 22,070 real symmetric yes yes

HB/bcsstk11 33 MAT, MM, RB 1,473 1,473 34,241 real symmetric yes yes

HB/bcsstk12 34 MAT, MM, RB 1,473 1,473 34,241 real symmetric yes yes

HB/bcsstk13 35 MAT, MM, RB 2,003 2,003 83,883 real symmetric yes yes

HB/bcsstk14 36 MAT, MM, RB 1,806 1,806 63,454 real symmetric yes yes

HB/bcsstk15 37 MAT, MM, RB 3,948 3,948 117,816 real symmetric yes yes

HB/bcsstk16 38 MAT, MM, RB 4,884 4,884 290,378 real symmetric yes yes

HB/bcsstk17 39 MAT, MM, RB 10,974 10,974 428,650 real symmetric yes yes

HB/bcsstk18 40 MAT, MM, RB 11,948 11,948 149,090 real symmetric yes yes

HB/bcsstk19 41 MAT, MM, RB 817 817 6,853 real symmetric yes yes

HB/bcsstk20 42 MAT, MM, RB 485 485 3,135 real symmetric yes yes

HB/bcsstk21 43 MAT, MM, RB 3,600 3,600 26,600 real symmetric yes yes

HB/bcsstk22 44 MAT, MM, RB 138 138 696 real symmetric yes yes

HB/bcsstk23 45 MAT, MM, RB 3,134 3,134 45,178 real symmetric yes yes

HB/bcsstk24 46 MAT, MM, RB 3,562 3,562 159,910 real symmetric yes yes

HB/bcsstk25 47 MAT, MM, RB 15,439 15,439 252,241 real symmetric yes yes

HB/bcsstk26 48 MAT, MM, RB 1,922 1,922 30,336 real symmetric yes yes

HB/bcsstk27 49 MAT, MM, RB 1,224 1,224 56,126 real symmetric yes yes

HB/bcsstk28 50 MAT, MM, RB 4,410 4,410 219,024 real symmetric yes yes

HB/bcsstk29 51 MAT, MM, RB 13,992 13,992 619,488 binary symmetric yes no

HB/bcsstk30 52 MAT, MM, RB 28,924 28,924 2,043,492 binary symmetric yes no

HB/bcsstk31 53 MAT, MM, RB 35,588 35,588 1,181,416 binary symmetric yes no

HB/bcsstk32 54 MAT, MM, RB 44,609 44,609 2,014,701 binary symmetric yes no

HB/bcsstk33 55 MAT, MM, RB 8,738 8,738 591,904 binary symmetric yes no

HB/bcsstm01 56 MAT, MM, RB 48 48 24 integer symmetric yes no

HB/bcsstm02 57 MAT, MM, RB 66 66 66 real symmetric yes yes

HB/bcsstm03 58 MAT, MM, RB 112 112 72 real symmetric yes no

HB/bcsstm04 59 MAT, MM, RB 132 132 66 real symmetric yes no

HB/bcsstm05 60 MAT, MM, RB 153 153 153 real symmetric yes yes

HB/bcsstm06 61 MAT, MM, RB 420 420 420 real symmetric yes yes

HB/bcsstm07 62 MAT, MM, RB 420 420 7,252 real symmetric yes yes

HB/bcsstm08 63 MAT, MM, RB 1,074 1,074 1,074 real symmetric yes yes

HB/bcsstm09 64 MAT, MM, RB 1,083 1,083 1,083 real symmetric yes yes

HB/bcsstm10 65 MAT, MM, RB 1,086 1,086 22,092 real symmetric yes no

HB/bcsstm11 66 MAT, MM, RB 1,473 1,473 1,473 real symmetric yes yes

HB/bcsstm12 67 MAT, MM, RB 1,473 1,473 19,659 real symmetric yes yes

HB/bcsstm13 68 MAT, MM, RB 2,003 2,003 21,181 real symmetric yes no

HB/bcsstm19 69 MAT, MM, RB 817 817 817 real symmetric yes yes

HB/bcsstm20 70 MAT, MM, RB 485 485 485 real symmetric yes yes

HB/bcsstm21 71 MAT, MM, RB 3,600 3,600 3,600 real symmetric yes yes

HB/bcsstm22 72 MAT, MM, RB 138 138 138 real symmetric yes yes

HB/bcsstm23 73 MAT, MM, RB 3,134 3,134 3,134 real symmetric yes yes

HB/bcsstm24 74 MAT, MM, RB 3,562 3,562 3,562 real symmetric yes yes

HB/bcsstm25 75 MAT, MM, RB 15,439 15,439 15,439 real symmetric yes yes

HB/bcsstm26 76 MAT, MM, RB 1,922 1,922 1,922 real symmetric yes yes

HB/bcsstm27 77 MAT, MM, RB 1,224 1,224 56,126 real symmetric yes no

HB/beacxc 78 MAT, MM, RB 497 506 50,409 real rectangular - no

HB/beaflw 79 MAT, MM, RB 497 507 53,403 real rectangular - no

HB/beause 80 MAT, MM, RB 497 507 44,551 real rectangular - no

HB/blckhole 81 MAT, MM, RB 2,132 2,132 14,872 binary symmetric yes no

HB/bp_0 82 MAT, MM, RB 822 822 3,276 real unsymmetric 0.12% no

HB/bp_1000 83 MAT, MM, RB 822 822 4,661 real unsymmetric 0.04% no

HB/bp_1200 84 MAT, MM, RB 822 822 4,726 real unsymmetric 0.04% no

HB/bp_1400 85 MAT, MM, RB 822 822 4,790 real unsymmetric 0.04% no

HB/bp_1600 86 MAT, MM, RB 822 822 4,841 real unsymmetric 0.04% no

HB/bp_200 87 MAT, MM, RB 822 822 3,802 real unsymmetric 0% no

HB/bp_400 88 MAT, MM, RB 822 822 4,028 real unsymmetric 0.05% no

HB/bp_600 89 MAT, MM, RB 822 822 4,172 real unsymmetric 0.05% no

HB/bp_800 90 MAT, MM, RB 822 822 4,534 real unsymmetric 0.04% no

HB/can_1054 91 MAT, MM, RB 1,054 1,054 12,196 binary symmetric yes no

HB/can_1072 92 MAT, MM, RB 1,072 1,072 12,444 binary symmetric yes no

HB/can_144 93 MAT, MM, RB 144 144 1,296 binary symmetric yes no

HB/can_161 94 MAT, MM, RB 161 161 1,377 binary symmetric yes no

HB/can_187 95 MAT, MM, RB 187 187 1,491 binary symmetric yes no

HB/can_229 96 MAT, MM, RB 229 229 1,777 binary symmetric yes no

HB/can_24 97 MAT, MM, RB 24 24 160 binary symmetric yes no

HB/can_256 98 MAT, MM, RB 256 256 2,916 binary symmetric yes no

HB/can_268 99 MAT, MM, RB 268 268 3,082 binary symmetric yes no

HB/can_292 100 MAT, MM, RB 292 292 2,540 binary symmetric yes no

HB/can_445 101 MAT, MM, RB 445 445 3,809 binary symmetric yes no

HB/can_61 102 MAT, MM, RB 61 61 557 binary symmetric yes no

HB/can_62 103 MAT, MM, RB 62 62 218 binary symmetric yes no

HB/can_634 104 MAT, MM, RB 634 634 7,228 binary symmetric yes no

HB/can_715 105 MAT, MM, RB 715 715 6,665 binary symmetric yes no

HB/can_73 106 MAT, MM, RB 73 73 377 binary symmetric yes no

HB/can_838 107 MAT, MM, RB 838 838 10,010 binary symmetric yes no

HB/can_96 108 MAT, MM, RB 96 96 768 binary symmetric yes no

HB/cegb2802 1173 MAT, MM, RB 2,802 2,802 277,362 binary symmetric yes no

HB/cegb2919 1174 MAT, MM, RB 2,919 2,919 321,543 binary symmetric yes no

HB/cegb3024 1175 MAT, MM, RB 3,024 3,024 79,848 binary symmetric yes no

HB/cegb3306 1176 MAT, MM, RB 3,306 3,306 74,916 binary symmetric yes no

HB/curtis54 109 MAT, MM, RB 54 54 291 binary unsymmetric 95% no

HB/dwt_1005 110 MAT, MM, RB 1,005 1,005 8,621 binary symmetric yes no

HB/dwt_1007 111 MAT, MM, RB 1,007 1,007 8,575 binary symmetric yes no

HB/dwt_1242 112 MAT, MM, RB 1,242 1,242 10,426 binary symmetric yes no

HB/dwt_162 113 MAT, MM, RB 162 162 1,182 binary symmetric yes no

HB/dwt_193 114 MAT, MM, RB 193 193 3,493 binary symmetric yes no

HB/dwt_198 115 MAT, MM, RB 198 198 1,392 binary symmetric yes no

HB/dwt_209 116 MAT, MM, RB 209 209 1,743 binary symmetric yes no

HB/dwt_221 117 MAT, MM, RB 221 221 1,629 binary symmetric yes no

HB/dwt_234 118 MAT, MM, RB 234 234 834 binary symmetric yes no

HB/dwt_245 119 MAT, MM, RB 245 245 1,461 binary symmetric yes no

HB/dwt_2680 120 MAT, MM, RB 2,680 2,680 25,026 binary symmetric yes no

HB/dwt_307 121 MAT, MM, RB 307 307 2,523 binary symmetric yes no

HB/dwt_310 122 MAT, MM, RB 310 310 2,448 binary symmetric yes no

HB/dwt_346 123 MAT, MM, RB 346 346 3,226 binary symmetric yes no

HB/dwt_361 124 MAT, MM, RB 361 361 2,953 binary symmetric yes no

HB/dwt_419 125 MAT, MM, RB 419 419 3,563 binary symmetric yes no

HB/dwt_492 126 MAT, MM, RB 492 492 3,156 binary symmetric yes no

HB/dwt_503 127 MAT, MM, RB 503 503 6,027 binary symmetric yes no

HB/dwt_512 128 MAT, MM, RB 512 512 3,502 binary symmetric yes no

HB/dwt_59 129 MAT, MM, RB 59 59 267 binary symmetric yes no

HB/dwt_592 130 MAT, MM, RB 592 592 5,104 binary symmetric yes no

HB/dwt_607 131 MAT, MM, RB 607 607 5,131 binary symmetric yes no

HB/dwt_66 132 MAT, MM, RB 66 66 320 binary symmetric yes no

HB/dwt_72 133 MAT, MM, RB 72 72 222 binary symmetric yes no

HB/dwt_758 134 MAT, MM, RB 758 758 5,994 binary symmetric yes no

HB/dwt_869 135 MAT, MM, RB 869 869 7,285 binary symmetric yes no

HB/dwt_87 136 MAT, MM, RB 87 87 541 binary symmetric yes no

HB/dwt_878 137 MAT, MM, RB 878 878 7,448 binary symmetric yes no

HB/dwt_918 138 MAT, MM, RB 918 918 7,384 binary symmetric yes no

HB/dwt_992 139 MAT, MM, RB 992 992 16,744 binary symmetric yes no

HB/eris1176 140 MAT, MM, RB 1,176 1,176 18,552 binary symmetric yes no

HB/fs_183_1 141 MAT, MM, RB 183 183 998 real unsymmetric 0% no

HB/fs_183_3 142 MAT, MM, RB 183 183 1,069 real unsymmetric 0% no

HB/fs_183_4 143 MAT, MM, RB 183 183 1,069 real unsymmetric 0% no

HB/fs_183_6 144 MAT, MM, RB 183 183 1,000 real unsymmetric 0% no

HB/fs_541_1 145 MAT, MM, RB 541 541 4,282 real unsymmetric 0% no

HB/fs_541_2 146 MAT, MM, RB 541 541 4,282 real unsymmetric 0% no

HB/fs_541_3 147 MAT, MM, RB 541 541 4,282 real unsymmetric 0% no

HB/fs_541_4 148 MAT, MM, RB 541 541 4,273 real unsymmetric 0% no

HB/fs_680_1 149 MAT, MM, RB 680 680 2,184 real unsymmetric 0% no

HB/fs_680_2 150 MAT, MM, RB 680 680 2,424 real unsymmetric 0% no

HB/fs_680_3 151 MAT, MM, RB 680 680 2,471 real unsymmetric 0% no

HB/fs_760_1 152 MAT, MM, RB 760 760 5,739 real unsymmetric 0% no

HB/fs_760_2 153 MAT, MM, RB 760 760 5,739 real unsymmetric 0% no

HB/fs_760_3 154 MAT, MM, RB 760 760 5,816 real unsymmetric 0% no

HB/gemat1 155 MAT, MM, RB 4,929 10,595 46,591 real rectangular - no

HB/gemat11 156 MAT, MM, RB 4,929 4,929 33,108 real unsymmetric 0% no

HB/gemat12 157 MAT, MM, RB 4,929 4,929 33,044 real unsymmetric 0% no

HB/gent113 158 MAT, MM, RB 113 113 655 binary unsymmetric 6% no

HB/gr_30_30 159 MAT, MM, RB 900 900 7,744 integer symmetric yes yes

HB/gre_1107 160 MAT, MM, RB 1,107 1,107 5,664 real unsymmetric 0% no

HB/gre_115 161 MAT, MM, RB 115 115 421 real unsymmetric 0% no

HB/gre_185 162 MAT, MM, RB 185 185 975 real unsymmetric 0% no

HB/gre_216a 163 MAT, MM, RB 216 216 812 real unsymmetric 0% no

HB/gre_216b 164 MAT, MM, RB 216 216 812 real unsymmetric 0% no

HB/gre_343 165 MAT, MM, RB 343 343 1,310 real unsymmetric 0% no

HB/gre_512 166 MAT, MM, RB 512 512 1,976 real unsymmetric 0% no

HB/hor_131 167 MAT, MM, RB 434 434 4,182 real unsymmetric 37% no

HB/ibm32 168 MAT, MM, RB 32 32 126 binary unsymmetric 9% no

HB/illc1033 169 MAT, MM, RB 1,033 320 4,719 real rectangular - no

HB/illc1850 170 MAT, MM, RB 1,850 712 8,636 real rectangular - no

HB/impcol_a 171 MAT, MM, RB 207 207 572 real unsymmetric 1% no

HB/impcol_b 172 MAT, MM, RB 59 59 271 real unsymmetric 0% no

HB/impcol_c 173 MAT, MM, RB 137 137 400 real unsymmetric 1% no

HB/impcol_d 174 MAT, MM, RB 425 425 1,255 real unsymmetric 2% no

HB/impcol_e 175 MAT, MM, RB 225 225 1,303 real unsymmetric 0.16% no

HB/jagmesh1 176 MAT, MM, RB 936 936 6,264 binary symmetric yes no

HB/jagmesh2 177 MAT, MM, RB 1,009 1,009 6,865 binary symmetric yes no

HB/jagmesh3 178 MAT, MM, RB 1,089 1,089 7,361 binary symmetric yes no

HB/jagmesh4 179 MAT, MM, RB 1,440 1,440 9,504 binary symmetric yes no

HB/jagmesh5 180 MAT, MM, RB 1,180 1,180 7,750 binary symmetric yes no

HB/jagmesh6 181 MAT, MM, RB 1,377 1,377 8,993 binary symmetric yes no

HB/jagmesh7 182 MAT, MM, RB 1,138 1,138 7,450 binary symmetric yes no

HB/jagmesh8 183 MAT, MM, RB 1,141 1,141 7,465 binary symmetric yes no

HB/jagmesh9 184 MAT, MM, RB 1,349 1,349 9,101 binary symmetric yes no

HB/jgl009 185 MAT, MM, RB 9 9 50 binary unsymmetric 48% no

HB/jgl011 186 MAT, MM, RB 11 11 76 binary unsymmetric 52% no

HB/jpwh_991 187 MAT, MM, RB 991 991 6,027 integer unsymmetric 94% no

HB/lap_25 1177 MAT, MM, RB 25 25 169 binary symmetric yes no

HB/lns_131 188 MAT, MM, RB 131 131 536 real unsymmetric 2% no

HB/lns_3937 189 MAT, MM, RB 3,937 3,937 25,407 real unsymmetric 0.14% no

HB/lns_511 190 MAT, MM, RB 511 511 2,796 real unsymmetric 2% no

HB/lnsp3937 191 MAT, MM, RB 3,937 3,937 25,407 real unsymmetric 0.14% no

HB/lnsp_131 192 MAT, MM, RB 131 131 536 real unsymmetric 2% no

HB/lnsp_511 193 MAT, MM, RB 511 511 2,796 real unsymmetric 2% no

HB/lock1074 1178 MAT, MM, RB 1,074 1,074 51,588 binary symmetric yes no

HB/lock2232 1179 MAT, MM, RB 2,232 2,232 80,352 binary symmetric yes no

HB/lock3491 1180 MAT, MM, RB 3,491 3,491 160,444 binary symmetric yes no

HB/lock_700 1181 MAT, MM, RB 700 700 22,175 binary symmetric yes no

HB/lshp1009 194 MAT, MM, RB 1,009 1,009 6,865 binary symmetric yes no

HB/lshp1270 195 MAT, MM, RB 1,270 1,270 8,668 binary symmetric yes no

HB/lshp1561 196 MAT, MM, RB 1,561 1,561 10,681 binary symmetric yes no

HB/lshp1882 197 MAT, MM, RB 1,882 1,882 12,904 binary symmetric yes no

HB/lshp2233 198 MAT, MM, RB 2,233 2,233 15,337 binary symmetric yes no

HB/lshp2614 199 MAT, MM, RB 2,614 2,614 17,980 binary symmetric yes no

HB/lshp3025 200 MAT, MM, RB 3,025 3,025 20,833 binary symmetric yes no

HB/lshp3466 201 MAT, MM, RB 3,466 3,466 23,896 binary symmetric yes no

HB/lshp_265 202 MAT, MM, RB 265 265 1,753 binary symmetric yes no

HB/lshp_406 203 MAT, MM, RB 406 406 2,716 binary symmetric yes no

HB/lshp_577 204 MAT, MM, RB 577 577 3,889 binary symmetric yes no

HB/lshp_778 205 MAT, MM, RB 778 778 5,272 binary symmetric yes no

HB/lund_a 206 MAT, MM, RB 147 147 2,449 real symmetric yes yes

HB/lund_b 207 MAT, MM, RB 147 147 2,441 real symmetric yes yes

HB/mahindas 208 MAT, MM, RB 1,258 1,258 7,682 real unsymmetric 0% no

HB/man_5976 1182 MAT, MM, RB 5,976 5,976 225,046 binary symmetric yes no

HB/mbeacxc 209 MAT, MM, RB 496 496 49,920 real unsymmetric 0% no

HB/mbeaflw 210 MAT, MM, RB 496 496 49,920 real unsymmetric 0% no

HB/mbeause 211 MAT, MM, RB 496 496 41,063 real unsymmetric 0.78% no

HB/mcca 212 MAT, MM, RB 180 180 2,659 real unsymmetric 0% no

HB/mcfe 213 MAT, MM, RB 765 765 24,382 real unsymmetric 0% no

HB/nnc1374 214 MAT, MM, RB 1,374 1,374 8,588 real unsymmetric 59% no

HB/nnc261 215 MAT, MM, RB 261 261 1,500 real unsymmetric 61% no

HB/nnc666 216 MAT, MM, RB 666 666 4,032 real unsymmetric 59% no

HB/nos1 217 MAT, MM, RB 237 237 1,017 real symmetric yes yes

HB/nos2 218 MAT, MM, RB 957 957 4,137 real symmetric yes yes

HB/nos3 219 MAT, MM, RB 960 960 15,844 real symmetric yes yes

HB/nos4 220 MAT, MM, RB 100 100 594 real symmetric yes yes

HB/nos5 221 MAT, MM, RB 468 468 5,172 real symmetric yes yes

HB/nos6 222 MAT, MM, RB 675 675 3,255 real symmetric yes yes

HB/nos7 223 MAT, MM, RB 729 729 4,617 real symmetric yes yes

HB/orani678 224 MAT, MM, RB 2,529 2,529 90,158 real unsymmetric 0.00% no

HB/orsirr_1 225 MAT, MM, RB 1,030 1,030 6,858 real unsymmetric 41% no

HB/orsirr_2 226 MAT, MM, RB 886 886 5,970 real unsymmetric 41% no

HB/orsreg_1 227 MAT, MM, RB 2,205 2,205 14,133 real unsymmetric 41% no

HB/plat1919 228 MAT, MM, RB 1,919 1,919 32,399 real symmetric yes yes

HB/plat362 229 MAT, MM, RB 362 362 5,786 real symmetric yes yes

HB/plsk1919 230 MAT, MM, RB 1,919 1,919 9,662 real skew-symmetric 0% no

HB/plskz362 231 MAT, MM, RB 362 362 1,760 real skew-symmetric 0% no

HB/pores_1 232 MAT, MM, RB 30 30 180 real unsymmetric 29% no

HB/pores_2 233 MAT, MM, RB 1,224 1,224 9,613 real unsymmetric 39% no

HB/pores_3 234 MAT, MM, RB 532 532 3,474 real unsymmetric 31% no

HB/psmigr_1 235 MAT, MM, RB 3,140 3,140 543,160 integer unsymmetric 1% no

HB/psmigr_2 236 MAT, MM, RB 3,140 3,140 540,022 real unsymmetric 0% no

HB/psmigr_3 237 MAT, MM, RB 3,140 3,140 543,160 real unsymmetric 0% no

HB/rgg010 238 MAT, MM, RB 10 10 76 binary unsymmetric 64% no

HB/saylr1 239 MAT, MM, RB 238 238 1,128 real unsymmetric 65% no

HB/saylr3 240 MAT, MM, RB 1,000 1,000 3,750 real symmetric yes no

HB/saylr4 241 MAT, MM, RB 3,564 3,564 22,316 real symmetric yes no

HB/sherman1 242 MAT, MM, RB 1,000 1,000 3,750 real symmetric yes no

HB/sherman2 243 MAT, MM, RB 1,080 1,080 23,094 real unsymmetric 0.49% no

HB/sherman3 244 MAT, MM, RB 5,005 5,005 20,033 real unsymmetric 45% no

HB/sherman4 245 MAT, MM, RB 1,104 1,104 3,786 real unsymmetric 0% no

HB/sherman5 246 MAT, MM, RB 3,312 3,312 20,793 real unsymmetric 15% no

HB/shl_0 247 MAT, MM, RB 663 663 1,687 integer unsymmetric 0% no

HB/shl_200 248 MAT, MM, RB 663 663 1,726 integer unsymmetric 0% no

HB/shl_400 249 MAT, MM, RB 663 663 1,712 integer unsymmetric 0% no

HB/sstmodel 250 MAT, MM, RB 3,345 3,345 22,749 binary symmetric yes no

HB/steam1 251 MAT, MM, RB 240 240 2,248 real unsymmetric 27% no

HB/steam2 252 MAT, MM, RB 600 600 5,660 real unsymmetric 19% no

HB/steam3 253 MAT, MM, RB 80 80 314 real unsymmetric 32% no

HB/str_0 254 MAT, MM, RB 363 363 2,454 real unsymmetric 0% no

HB/str_200 255 MAT, MM, RB 363 363 3,068 real unsymmetric 0% no

HB/str_400 256 MAT, MM, RB 363 363 3,157 real unsymmetric 0% no

HB/str_600 257 MAT, MM, RB 363 363 3,279 real unsymmetric 0% no

HB/watt_1 258 MAT, MM, RB 1,856 1,856 11,360 real unsymmetric 99% no

HB/watt_2 259 MAT, MM, RB 1,856 1,856 11,550 real unsymmetric 97% no

HB/well1033 260 MAT, MM, RB 1,033 320 4,732 real rectangular - no

HB/well1850 261 MAT, MM, RB 1,850 712 8,755 real rectangular - no

HB/west0067 262 MAT, MM, RB 67 67 294 real unsymmetric 0% no

HB/west0132 263 MAT, MM, RB 132 132 413 real unsymmetric 0.49% no

HB/west0156 264 MAT, MM, RB 156 156 362 real unsymmetric 0% no

HB/west0167 265 MAT, MM, RB 167 167 506 real unsymmetric 0% no

HB/west0381 266 MAT, MM, RB 381 381 2,134 real unsymmetric 0.09% no

HB/west0479 267 MAT, MM, RB 479 479 1,888 real unsymmetric 0% no

HB/west0497 268 MAT, MM, RB 497 497 1,721 real unsymmetric 0% no

HB/west0655 269 MAT, MM, RB 655 655 2,808 real unsymmetric 0% no

HB/west0989 270 MAT, MM, RB 989 989 3,518 real unsymmetric 0.40% no

HB/west1505 271 MAT, MM, RB 1,505 1,505 5,414 real unsymmetric 0% no

HB/west2021 272 MAT, MM, RB 2,021 2,021 7,310 real unsymmetric 0% no

HB/will199 273 MAT, MM, RB 199 199 701 binary unsymmetric 6% no

HB/will57 274 MAT, MM, RB 57 57 281 binary unsymmetric 87% no

HB/wm1 275 MAT, MM, RB 207 277 2,909 real rectangular - no

HB/wm2 276 MAT, MM, RB 207 260 2,942 real rectangular - no

HB/wm3 277 MAT, MM, RB 207 260 2,948 real rectangular - no

HB/young1c 278 MAT, MM, RB 841 841 4,089 complex unsymmetric 85% no

HB/young2c 279 MAT, MM, RB 841 841 4,089 complex unsymmetric 85% no

HB/young3c 280 MAT, MM, RB 841 841 3,988 real unsymmetric 81% no

HB/young4c 281 MAT, MM, RB 841 841 4,089 complex unsymmetric 80% no

HB/zenios 282 MAT, MM, RB 2,873 2,873 1,314 real symmetric yes no

Group/Name	id	download	# rows	# cols	nonzeros	type	sym	spd?
HB/1138_bus	1	MAT, MM, RB	1,138	1,138	4,054	real symmetric	yes	yes
HB/494_bus	2	MAT, MM, RB	494	494	1,666	real symmetric	yes	yes
HB/662_bus	3	MAT, MM, RB	662	662	2,474	real symmetric	yes	yes
HB/685_bus	4	MAT, MM, RB	685	685	3,249	real symmetric	yes	yes
HB/abb313	5	MAT, MM, RB	313	176	1,557	binary rectangular	-	no
HB/arc130	6	MAT, MM, RB	130	130	1,037	real unsymmetric	0%	no
HB/ash219	7	MAT, MM, RB	219	85	438	binary rectangular	-	no
HB/ash292	8	MAT, MM, RB	292	292	2,208	binary symmetric	yes	no
HB/ash331	9	MAT, MM, RB	331	104	662	binary rectangular	-	no
HB/ash608	10	MAT, MM, RB	608	188	1,216	binary rectangular	-	no
HB/ash85	11	MAT, MM, RB	85	85	523	binary symmetric	yes	no
HB/ash958	12	MAT, MM, RB	958	292	1,916	binary rectangular	-	no
HB/bcspwr01	13	MAT, MM, RB	39	39	131	binary symmetric	yes	no
HB/bcspwr02	14	MAT, MM, RB	49	49	167	binary symmetric	yes	no
HB/bcspwr03	15	MAT, MM, RB	118	118	476	binary symmetric	yes	no
HB/bcspwr04	16	MAT, MM, RB	274	274	1,612	binary symmetric	yes	no
HB/bcspwr05	17	MAT, MM, RB	443	443	1,623	binary symmetric	yes	no
HB/bcspwr06	18	MAT, MM, RB	1,454	1,454	5,300	binary symmetric	yes	no
HB/bcspwr07	19	MAT, MM, RB	1,612	1,612	5,824	binary symmetric	yes	no
HB/bcspwr08	20	MAT, MM, RB	1,624	1,624	6,050	binary symmetric	yes	no
HB/bcspwr09	21	MAT, MM, RB	1,723	1,723	6,511	binary symmetric	yes	no
HB/bcspwr10	22	MAT, MM, RB	5,300	5,300	21,842	binary symmetric	yes	no
HB/bcsstk01	23	MAT, MM, RB	48	48	400	real symmetric	yes	yes
HB/bcsstk02	24	MAT, MM, RB	66	66	4,356	real symmetric	yes	yes
HB/bcsstk03	25	MAT, MM, RB	112	112	640	real symmetric	yes	yes
HB/bcsstk04	26	MAT, MM, RB	132	132	3,648	real symmetric	yes	yes
HB/bcsstk05	27	MAT, MM, RB	153	153	2,423	real symmetric	yes	yes
HB/bcsstk06	28	MAT, MM, RB	420	420	7,860	real symmetric	yes	yes
HB/bcsstk07	29	MAT, MM, RB	420	420	7,860	real symmetric	yes	yes
HB/bcsstk08	30	MAT, MM, RB	1,074	1,074	12,960	real symmetric	yes	yes
HB/bcsstk09	31	MAT, MM, RB	1,083	1,083	18,437	real symmetric	yes	yes
HB/bcsstk10	32	MAT, MM, RB	1,086	1,086	22,070	real symmetric	yes	yes
HB/bcsstk11	33	MAT, MM, RB	1,473	1,473	34,241	real symmetric	yes	yes
HB/bcsstk12	34	MAT, MM, RB	1,473	1,473	34,241	real symmetric	yes	yes
HB/bcsstk13	35	MAT, MM, RB	2,003	2,003	83,883	real symmetric	yes	yes
HB/bcsstk14	36	MAT, MM, RB	1,806	1,806	63,454	real symmetric	yes	yes
HB/bcsstk15	37	MAT, MM, RB	3,948	3,948	117,816	real symmetric	yes	yes
HB/bcsstk16	38	MAT, MM, RB	4,884	4,884	290,378	real symmetric	yes	yes
HB/bcsstk17	39	MAT, MM, RB	10,974	10,974	428,650	real symmetric	yes	yes
HB/bcsstk18	40	MAT, MM, RB	11,948	11,948	149,090	real symmetric	yes	yes
HB/bcsstk19	41	MAT, MM, RB	817	817	6,853	real symmetric	yes	yes
HB/bcsstk20	42	MAT, MM, RB	485	485	3,135	real symmetric	yes	yes
HB/bcsstk21	43	MAT, MM, RB	3,600	3,600	26,600	real symmetric	yes	yes
HB/bcsstk22	44	MAT, MM, RB	138	138	696	real symmetric	yes	yes
HB/bcsstk23	45	MAT, MM, RB	3,134	3,134	45,178	real symmetric	yes	yes
HB/bcsstk24	46	MAT, MM, RB	3,562	3,562	159,910	real symmetric	yes	yes
HB/bcsstk25	47	MAT, MM, RB	15,439	15,439	252,241	real symmetric	yes	yes
HB/bcsstk26	48	MAT, MM, RB	1,922	1,922	30,336	real symmetric	yes	yes
HB/bcsstk27	49	MAT, MM, RB	1,224	1,224	56,126	real symmetric	yes	yes
HB/bcsstk28	50	MAT, MM, RB	4,410	4,410	219,024	real symmetric	yes	yes
HB/bcsstk29	51	MAT, MM, RB	13,992	13,992	619,488	binary symmetric	yes	no
HB/bcsstk30	52	MAT, MM, RB	28,924	28,924	2,043,492	binary symmetric	yes	no
HB/bcsstk31	53	MAT, MM, RB	35,588	35,588	1,181,416	binary symmetric	yes	no
HB/bcsstk32	54	MAT, MM, RB	44,609	44,609	2,014,701	binary symmetric	yes	no
HB/bcsstk33	55	MAT, MM, RB	8,738	8,738	591,904	binary symmetric	yes	no
HB/bcsstm01	56	MAT, MM, RB	48	48	24	integer symmetric	yes	no
HB/bcsstm02	57	MAT, MM, RB	66	66	66	real symmetric	yes	yes
HB/bcsstm03	58	MAT, MM, RB	112	112	72	real symmetric	yes	no
HB/bcsstm04	59	MAT, MM, RB	132	132	66	real symmetric	yes	no
HB/bcsstm05	60	MAT, MM, RB	153	153	153	real symmetric	yes	yes
HB/bcsstm06	61	MAT, MM, RB	420	420	420	real symmetric	yes	yes
HB/bcsstm07	62	MAT, MM, RB	420	420	7,252	real symmetric	yes	yes
HB/bcsstm08	63	MAT, MM, RB	1,074	1,074	1,074	real symmetric	yes	yes
HB/bcsstm09	64	MAT, MM, RB	1,083	1,083	1,083	real symmetric	yes	yes
HB/bcsstm10	65	MAT, MM, RB	1,086	1,086	22,092	real symmetric	yes	no
HB/bcsstm11	66	MAT, MM, RB	1,473	1,473	1,473	real symmetric	yes	yes
HB/bcsstm12	67	MAT, MM, RB	1,473	1,473	19,659	real symmetric	yes	yes
HB/bcsstm13	68	MAT, MM, RB	2,003	2,003	21,181	real symmetric	yes	no
HB/bcsstm19	69	MAT, MM, RB	817	817	817	real symmetric	yes	yes
HB/bcsstm20	70	MAT, MM, RB	485	485	485	real symmetric	yes	yes
HB/bcsstm21	71	MAT, MM, RB	3,600	3,600	3,600	real symmetric	yes	yes
HB/bcsstm22	72	MAT, MM, RB	138	138	138	real symmetric	yes	yes
HB/bcsstm23	73	MAT, MM, RB	3,134	3,134	3,134	real symmetric	yes	yes
HB/bcsstm24	74	MAT, MM, RB	3,562	3,562	3,562	real symmetric	yes	yes
HB/bcsstm25	75	MAT, MM, RB	15,439	15,439	15,439	real symmetric	yes	yes
HB/bcsstm26	76	MAT, MM, RB	1,922	1,922	1,922	real symmetric	yes	yes
HB/bcsstm27	77	MAT, MM, RB	1,224	1,224	56,126	real symmetric	yes	no
HB/beacxc	78	MAT, MM, RB	497	506	50,409	real rectangular	-	no
HB/beaflw	79	MAT, MM, RB	497	507	53,403	real rectangular	-	no
HB/beause	80	MAT, MM, RB	497	507	44,551	real rectangular	-	no
HB/blckhole	81	MAT, MM, RB	2,132	2,132	14,872	binary symmetric	yes	no
HB/bp_0	82	MAT, MM, RB	822	822	3,276	real unsymmetric	0.12%	no
HB/bp_1000	83	MAT, MM, RB	822	822	4,661	real unsymmetric	0.04%	no
HB/bp_1200	84	MAT, MM, RB	822	822	4,726	real unsymmetric	0.04%	no
HB/bp_1400	85	MAT, MM, RB	822	822	4,790	real unsymmetric	0.04%	no
HB/bp_1600	86	MAT, MM, RB	822	822	4,841	real unsymmetric	0.04%	no
HB/bp_200	87	MAT, MM, RB	822	822	3,802	real unsymmetric	0%	no
HB/bp_400	88	MAT, MM, RB	822	822	4,028	real unsymmetric	0.05%	no
HB/bp_600	89	MAT, MM, RB	822	822	4,172	real unsymmetric	0.05%	no
HB/bp_800	90	MAT, MM, RB	822	822	4,534	real unsymmetric	0.04%	no
HB/can_1054	91	MAT, MM, RB	1,054	1,054	12,196	binary symmetric	yes	no
HB/can_1072	92	MAT, MM, RB	1,072	1,072	12,444	binary symmetric	yes	no
HB/can_144	93	MAT, MM, RB	144	144	1,296	binary symmetric	yes	no
HB/can_161	94	MAT, MM, RB	161	161	1,377	binary symmetric	yes	no
HB/can_187	95	MAT, MM, RB	187	187	1,491	binary symmetric	yes	no
HB/can_229	96	MAT, MM, RB	229	229	1,777	binary symmetric	yes	no
HB/can_24	97	MAT, MM, RB	24	24	160	binary symmetric	yes	no
HB/can_256	98	MAT, MM, RB	256	256	2,916	binary symmetric	yes	no
HB/can_268	99	MAT, MM, RB	268	268	3,082	binary symmetric	yes	no
HB/can_292	100	MAT, MM, RB	292	292	2,540	binary symmetric	yes	no
HB/can_445	101	MAT, MM, RB	445	445	3,809	binary symmetric	yes	no
HB/can_61	102	MAT, MM, RB	61	61	557	binary symmetric	yes	no
HB/can_62	103	MAT, MM, RB	62	62	218	binary symmetric	yes	no
HB/can_634	104	MAT, MM, RB	634	634	7,228	binary symmetric	yes	no
HB/can_715	105	MAT, MM, RB	715	715	6,665	binary symmetric	yes	no
HB/can_73	106	MAT, MM, RB	73	73	377	binary symmetric	yes	no
HB/can_838	107	MAT, MM, RB	838	838	10,010	binary symmetric	yes	no
HB/can_96	108	MAT, MM, RB	96	96	768	binary symmetric	yes	no
HB/cegb2802	1173	MAT, MM, RB	2,802	2,802	277,362	binary symmetric	yes	no
HB/cegb2919	1174	MAT, MM, RB	2,919	2,919	321,543	binary symmetric	yes	no
HB/cegb3024	1175	MAT, MM, RB	3,024	3,024	79,848	binary symmetric	yes	no
HB/cegb3306	1176	MAT, MM, RB	3,306	3,306	74,916	binary symmetric	yes	no
HB/curtis54	109	MAT, MM, RB	54	54	291	binary unsymmetric	95%	no
HB/dwt_1005	110	MAT, MM, RB	1,005	1,005	8,621	binary symmetric	yes	no
HB/dwt_1007	111	MAT, MM, RB	1,007	1,007	8,575	binary symmetric	yes	no
HB/dwt_1242	112	MAT, MM, RB	1,242	1,242	10,426	binary symmetric	yes	no
HB/dwt_162	113	MAT, MM, RB	162	162	1,182	binary symmetric	yes	no
HB/dwt_193	114	MAT, MM, RB	193	193	3,493	binary symmetric	yes	no
HB/dwt_198	115	MAT, MM, RB	198	198	1,392	binary symmetric	yes	no
HB/dwt_209	116	MAT, MM, RB	209	209	1,743	binary symmetric	yes	no
HB/dwt_221	117	MAT, MM, RB	221	221	1,629	binary symmetric	yes	no
HB/dwt_234	118	MAT, MM, RB	234	234	834	binary symmetric	yes	no
HB/dwt_245	119	MAT, MM, RB	245	245	1,461	binary symmetric	yes	no
HB/dwt_2680	120	MAT, MM, RB	2,680	2,680	25,026	binary symmetric	yes	no
HB/dwt_307	121	MAT, MM, RB	307	307	2,523	binary symmetric	yes	no
HB/dwt_310	122	MAT, MM, RB	310	310	2,448	binary symmetric	yes	no
HB/dwt_346	123	MAT, MM, RB	346	346	3,226	binary symmetric	yes	no
HB/dwt_361	124	MAT, MM, RB	361	361	2,953	binary symmetric	yes	no
HB/dwt_419	125	MAT, MM, RB	419	419	3,563	binary symmetric	yes	no
HB/dwt_492	126	MAT, MM, RB	492	492	3,156	binary symmetric	yes	no
HB/dwt_503	127	MAT, MM, RB	503	503	6,027	binary symmetric	yes	no
HB/dwt_512	128	MAT, MM, RB	512	512	3,502	binary symmetric	yes	no
HB/dwt_59	129	MAT, MM, RB	59	59	267	binary symmetric	yes	no
HB/dwt_592	130	MAT, MM, RB	592	592	5,104	binary symmetric	yes	no
HB/dwt_607	131	MAT, MM, RB	607	607	5,131	binary symmetric	yes	no
HB/dwt_66	132	MAT, MM, RB	66	66	320	binary symmetric	yes	no
HB/dwt_72	133	MAT, MM, RB	72	72	222	binary symmetric	yes	no
HB/dwt_758	134	MAT, MM, RB	758	758	5,994	binary symmetric	yes	no
HB/dwt_869	135	MAT, MM, RB	869	869	7,285	binary symmetric	yes	no
HB/dwt_87	136	MAT, MM, RB	87	87	541	binary symmetric	yes	no
HB/dwt_878	137	MAT, MM, RB	878	878	7,448	binary symmetric	yes	no
HB/dwt_918	138	MAT, MM, RB	918	918	7,384	binary symmetric	yes	no
HB/dwt_992	139	MAT, MM, RB	992	992	16,744	binary symmetric	yes	no
HB/eris1176	140	MAT, MM, RB	1,176	1,176	18,552	binary symmetric	yes	no
HB/fs_183_1	141	MAT, MM, RB	183	183	998	real unsymmetric	0%	no
HB/fs_183_3	142	MAT, MM, RB	183	183	1,069	real unsymmetric	0%	no
HB/fs_183_4	143	MAT, MM, RB	183	183	1,069	real unsymmetric	0%	no
HB/fs_183_6	144	MAT, MM, RB	183	183	1,000	real unsymmetric	0%	no
HB/fs_541_1	145	MAT, MM, RB	541	541	4,282	real unsymmetric	0%	no
HB/fs_541_2	146	MAT, MM, RB	541	541	4,282	real unsymmetric	0%	no
HB/fs_541_3	147	MAT, MM, RB	541	541	4,282	real unsymmetric	0%	no
HB/fs_541_4	148	MAT, MM, RB	541	541	4,273	real unsymmetric	0%	no
HB/fs_680_1	149	MAT, MM, RB	680	680	2,184	real unsymmetric	0%	no
HB/fs_680_2	150	MAT, MM, RB	680	680	2,424	real unsymmetric	0%	no
HB/fs_680_3	151	MAT, MM, RB	680	680	2,471	real unsymmetric	0%	no
HB/fs_760_1	152	MAT, MM, RB	760	760	5,739	real unsymmetric	0%	no
HB/fs_760_2	153	MAT, MM, RB	760	760	5,739	real unsymmetric	0%	no
HB/fs_760_3	154	MAT, MM, RB	760	760	5,816	real unsymmetric	0%	no
HB/gemat1	155	MAT, MM, RB	4,929	10,595	46,591	real rectangular	-	no
HB/gemat11	156	MAT, MM, RB	4,929	4,929	33,108	real unsymmetric	0%	no
HB/gemat12	157	MAT, MM, RB	4,929	4,929	33,044	real unsymmetric	0%	no
HB/gent113	158	MAT, MM, RB	113	113	655	binary unsymmetric	6%	no
HB/gr_30_30	159	MAT, MM, RB	900	900	7,744	integer symmetric	yes	yes
HB/gre_1107	160	MAT, MM, RB	1,107	1,107	5,664	real unsymmetric	0%	no
HB/gre_115	161	MAT, MM, RB	115	115	421	real unsymmetric	0%	no
HB/gre_185	162	MAT, MM, RB	185	185	975	real unsymmetric	0%	no
HB/gre_216a	163	MAT, MM, RB	216	216	812	real unsymmetric	0%	no
HB/gre_216b	164	MAT, MM, RB	216	216	812	real unsymmetric	0%	no
HB/gre_343	165	MAT, MM, RB	343	343	1,310	real unsymmetric	0%	no
HB/gre_512	166	MAT, MM, RB	512	512	1,976	real unsymmetric	0%	no
HB/hor_131	167	MAT, MM, RB	434	434	4,182	real unsymmetric	37%	no
HB/ibm32	168	MAT, MM, RB	32	32	126	binary unsymmetric	9%	no
HB/illc1033	169	MAT, MM, RB	1,033	320	4,719	real rectangular	-	no
HB/illc1850	170	MAT, MM, RB	1,850	712	8,636	real rectangular	-	no
HB/impcol_a	171	MAT, MM, RB	207	207	572	real unsymmetric	1%	no
HB/impcol_b	172	MAT, MM, RB	59	59	271	real unsymmetric	0%	no
HB/impcol_c	173	MAT, MM, RB	137	137	400	real unsymmetric	1%	no
HB/impcol_d	174	MAT, MM, RB	425	425	1,255	real unsymmetric	2%	no
HB/impcol_e	175	MAT, MM, RB	225	225	1,303	real unsymmetric	0.16%	no
HB/jagmesh1	176	MAT, MM, RB	936	936	6,264	binary symmetric	yes	no
HB/jagmesh2	177	MAT, MM, RB	1,009	1,009	6,865	binary symmetric	yes	no
HB/jagmesh3	178	MAT, MM, RB	1,089	1,089	7,361	binary symmetric	yes	no
HB/jagmesh4	179	MAT, MM, RB	1,440	1,440	9,504	binary symmetric	yes	no
HB/jagmesh5	180	MAT, MM, RB	1,180	1,180	7,750	binary symmetric	yes	no
HB/jagmesh6	181	MAT, MM, RB	1,377	1,377	8,993	binary symmetric	yes	no
HB/jagmesh7	182	MAT, MM, RB	1,138	1,138	7,450	binary symmetric	yes	no
HB/jagmesh8	183	MAT, MM, RB	1,141	1,141	7,465	binary symmetric	yes	no
HB/jagmesh9	184	MAT, MM, RB	1,349	1,349	9,101	binary symmetric	yes	no
HB/jgl009	185	MAT, MM, RB	9	9	50	binary unsymmetric	48%	no
HB/jgl011	186	MAT, MM, RB	11	11	76	binary unsymmetric	52%	no
HB/jpwh_991	187	MAT, MM, RB	991	991	6,027	integer unsymmetric	94%	no
HB/lap_25	1177	MAT, MM, RB	25	25	169	binary symmetric	yes	no
HB/lns_131	188	MAT, MM, RB	131	131	536	real unsymmetric	2%	no
HB/lns_3937	189	MAT, MM, RB	3,937	3,937	25,407	real unsymmetric	0.14%	no
HB/lns_511	190	MAT, MM, RB	511	511	2,796	real unsymmetric	2%	no
HB/lnsp3937	191	MAT, MM, RB	3,937	3,937	25,407	real unsymmetric	0.14%	no
HB/lnsp_131	192	MAT, MM, RB	131	131	536	real unsymmetric	2%	no
HB/lnsp_511	193	MAT, MM, RB	511	511	2,796	real unsymmetric	2%	no
HB/lock1074	1178	MAT, MM, RB	1,074	1,074	51,588	binary symmetric	yes	no
HB/lock2232	1179	MAT, MM, RB	2,232	2,232	80,352	binary symmetric	yes	no
HB/lock3491	1180	MAT, MM, RB	3,491	3,491	160,444	binary symmetric	yes	no
HB/lock_700	1181	MAT, MM, RB	700	700	22,175	binary symmetric	yes	no
HB/lshp1009	194	MAT, MM, RB	1,009	1,009	6,865	binary symmetric	yes	no
HB/lshp1270	195	MAT, MM, RB	1,270	1,270	8,668	binary symmetric	yes	no
HB/lshp1561	196	MAT, MM, RB	1,561	1,561	10,681	binary symmetric	yes	no
HB/lshp1882	197	MAT, MM, RB	1,882	1,882	12,904	binary symmetric	yes	no
HB/lshp2233	198	MAT, MM, RB	2,233	2,233	15,337	binary symmetric	yes	no
HB/lshp2614	199	MAT, MM, RB	2,614	2,614	17,980	binary symmetric	yes	no
HB/lshp3025	200	MAT, MM, RB	3,025	3,025	20,833	binary symmetric	yes	no
HB/lshp3466	201	MAT, MM, RB	3,466	3,466	23,896	binary symmetric	yes	no
HB/lshp_265	202	MAT, MM, RB	265	265	1,753	binary symmetric	yes	no
HB/lshp_406	203	MAT, MM, RB	406	406	2,716	binary symmetric	yes	no
HB/lshp_577	204	MAT, MM, RB	577	577	3,889	binary symmetric	yes	no
HB/lshp_778	205	MAT, MM, RB	778	778	5,272	binary symmetric	yes	no
HB/lund_a	206	MAT, MM, RB	147	147	2,449	real symmetric	yes	yes
HB/lund_b	207	MAT, MM, RB	147	147	2,441	real symmetric	yes	yes
HB/mahindas	208	MAT, MM, RB	1,258	1,258	7,682	real unsymmetric	0%	no
HB/man_5976	1182	MAT, MM, RB	5,976	5,976	225,046	binary symmetric	yes	no
HB/mbeacxc	209	MAT, MM, RB	496	496	49,920	real unsymmetric	0%	no
HB/mbeaflw	210	MAT, MM, RB	496	496	49,920	real unsymmetric	0%	no
HB/mbeause	211	MAT, MM, RB	496	496	41,063	real unsymmetric	0.78%	no
HB/mcca	212	MAT, MM, RB	180	180	2,659	real unsymmetric	0%	no
HB/mcfe	213	MAT, MM, RB	765	765	24,382	real unsymmetric	0%	no
HB/nnc1374	214	MAT, MM, RB	1,374	1,374	8,588	real unsymmetric	59%	no
HB/nnc261	215	MAT, MM, RB	261	261	1,500	real unsymmetric	61%	no
HB/nnc666	216	MAT, MM, RB	666	666	4,032	real unsymmetric	59%	no
HB/nos1	217	MAT, MM, RB	237	237	1,017	real symmetric	yes	yes
HB/nos2	218	MAT, MM, RB	957	957	4,137	real symmetric	yes	yes
HB/nos3	219	MAT, MM, RB	960	960	15,844	real symmetric	yes	yes
HB/nos4	220	MAT, MM, RB	100	100	594	real symmetric	yes	yes
HB/nos5	221	MAT, MM, RB	468	468	5,172	real symmetric	yes	yes
HB/nos6	222	MAT, MM, RB	675	675	3,255	real symmetric	yes	yes
HB/nos7	223	MAT, MM, RB	729	729	4,617	real symmetric	yes	yes
HB/orani678	224	MAT, MM, RB	2,529	2,529	90,158	real unsymmetric	0.00%	no
HB/orsirr_1	225	MAT, MM, RB	1,030	1,030	6,858	real unsymmetric	41%	no
HB/orsirr_2	226	MAT, MM, RB	886	886	5,970	real unsymmetric	41%	no
HB/orsreg_1	227	MAT, MM, RB	2,205	2,205	14,133	real unsymmetric	41%	no
HB/plat1919	228	MAT, MM, RB	1,919	1,919	32,399	real symmetric	yes	yes
HB/plat362	229	MAT, MM, RB	362	362	5,786	real symmetric	yes	yes
HB/plsk1919	230	MAT, MM, RB	1,919	1,919	9,662	real skew-symmetric	0%	no
HB/plskz362	231	MAT, MM, RB	362	362	1,760	real skew-symmetric	0%	no
HB/pores_1	232	MAT, MM, RB	30	30	180	real unsymmetric	29%	no
HB/pores_2	233	MAT, MM, RB	1,224	1,224	9,613	real unsymmetric	39%	no
HB/pores_3	234	MAT, MM, RB	532	532	3,474	real unsymmetric	31%	no
HB/psmigr_1	235	MAT, MM, RB	3,140	3,140	543,160	integer unsymmetric	1%	no
HB/psmigr_2	236	MAT, MM, RB	3,140	3,140	540,022	real unsymmetric	0%	no
HB/psmigr_3	237	MAT, MM, RB	3,140	3,140	543,160	real unsymmetric	0%	no
HB/rgg010	238	MAT, MM, RB	10	10	76	binary unsymmetric	64%	no
HB/saylr1	239	MAT, MM, RB	238	238	1,128	real unsymmetric	65%	no
HB/saylr3	240	MAT, MM, RB	1,000	1,000	3,750	real symmetric	yes	no
HB/saylr4	241	MAT, MM, RB	3,564	3,564	22,316	real symmetric	yes	no
HB/sherman1	242	MAT, MM, RB	1,000	1,000	3,750	real symmetric	yes	no
HB/sherman2	243	MAT, MM, RB	1,080	1,080	23,094	real unsymmetric	0.49%	no
HB/sherman3	244	MAT, MM, RB	5,005	5,005	20,033	real unsymmetric	45%	no
HB/sherman4	245	MAT, MM, RB	1,104	1,104	3,786	real unsymmetric	0%	no
HB/sherman5	246	MAT, MM, RB	3,312	3,312	20,793	real unsymmetric	15%	no
HB/shl_0	247	MAT, MM, RB	663	663	1,687	integer unsymmetric	0%	no
HB/shl_200	248	MAT, MM, RB	663	663	1,726	integer unsymmetric	0%	no
HB/shl_400	249	MAT, MM, RB	663	663	1,712	integer unsymmetric	0%	no
HB/sstmodel	250	MAT, MM, RB	3,345	3,345	22,749	binary symmetric	yes	no
HB/steam1	251	MAT, MM, RB	240	240	2,248	real unsymmetric	27%	no
HB/steam2	252	MAT, MM, RB	600	600	5,660	real unsymmetric	19%	no
HB/steam3	253	MAT, MM, RB	80	80	314	real unsymmetric	32%	no
HB/str_0	254	MAT, MM, RB	363	363	2,454	real unsymmetric	0%	no
HB/str_200	255	MAT, MM, RB	363	363	3,068	real unsymmetric	0%	no
HB/str_400	256	MAT, MM, RB	363	363	3,157	real unsymmetric	0%	no
HB/str_600	257	MAT, MM, RB	363	363	3,279	real unsymmetric	0%	no
HB/watt_1	258	MAT, MM, RB	1,856	1,856	11,360	real unsymmetric	99%	no
HB/watt_2	259	MAT, MM, RB	1,856	1,856	11,550	real unsymmetric	97%	no
HB/well1033	260	MAT, MM, RB	1,033	320	4,732	real rectangular	-	no
HB/well1850	261	MAT, MM, RB	1,850	712	8,755	real rectangular	-	no
HB/west0067	262	MAT, MM, RB	67	67	294	real unsymmetric	0%	no
HB/west0132	263	MAT, MM, RB	132	132	413	real unsymmetric	0.49%	no
HB/west0156	264	MAT, MM, RB	156	156	362	real unsymmetric	0%	no
HB/west0167	265	MAT, MM, RB	167	167	506	real unsymmetric	0%	no
HB/west0381	266	MAT, MM, RB	381	381	2,134	real unsymmetric	0.09%	no
HB/west0479	267	MAT, MM, RB	479	479	1,888	real unsymmetric	0%	no
HB/west0497	268	MAT, MM, RB	497	497	1,721	real unsymmetric	0%	no
HB/west0655	269	MAT, MM, RB	655	655	2,808	real unsymmetric	0%	no
HB/west0989	270	MAT, MM, RB	989	989	3,518	real unsymmetric	0.40%	no
HB/west1505	271	MAT, MM, RB	1,505	1,505	5,414	real unsymmetric	0%	no
HB/west2021	272	MAT, MM, RB	2,021	2,021	7,310	real unsymmetric	0%	no
HB/will199	273	MAT, MM, RB	199	199	701	binary unsymmetric	6%	no
HB/will57	274	MAT, MM, RB	57	57	281	binary unsymmetric	87%	no
HB/wm1	275	MAT, MM, RB	207	277	2,909	real rectangular	-	no
HB/wm2	276	MAT, MM, RB	207	260	2,942	real rectangular	-	no
HB/wm3	277	MAT, MM, RB	207	260	2,948	real rectangular	-	no
HB/young1c	278	MAT, MM, RB	841	841	4,089	complex unsymmetric	85%	no
HB/young2c	279	MAT, MM, RB	841	841	4,089	complex unsymmetric	85%	no
HB/young3c	280	MAT, MM, RB	841	841	3,988	real unsymmetric	81%	no
HB/young4c	281	MAT, MM, RB	841	841	4,089	complex unsymmetric	80%	no
HB/zenios	282	MAT, MM, RB	2,873	2,873	1,314	real symmetric	yes	no

Maintained by Tim Davis, last updated 10-Jun-2015.
Matrix pictures by cspy, a MATLAB function in the CSparse package.
See UFget to download directly into MATLAB.