## Solver Square Comparison: Considers all models.

 Date / Time: 01/07/08 20:11:22

Solver comparison utility.

Compares all solver return outcomes (for example optimal, locally optimal, infeasible, unbounded, fail) of one solver with all return outcomes of another solver. Interrupt denotes resource or iteration limit has been reached. Solver GLPK424 is represented on the left (rows) and solver IPOPT on top (columns). See the solver return definitions for return codes.

Models having trace data only in one trace file are listed in the "no data" column of the other.

 Tracefile 1 : 5-GLPK-0.trc Tracefile 2 : 6-IPOPT-0.trc Solvers used : GLPK424 IPOPT Modeltype(s) LP

 IPOPT: optimal IPOPT: locally optimal IPOPT: feasible IPOPT: infeasible IPOPT: unbounded IPOPT: fail IPOPT: no data total GLPK424 GLPK424: optimal 83 - 7 - - 10 - 100 GLPK424: locally optimal - - - - - - - - GLPK424: feasible - - - - - - - - GLPK424: infeasible - - - 2 - 2 - 4 GLPK424: unbounded - - - - - - - - GLPK424: fail 3 - 1 - - 10 - 14 GLPK424: no data - - - - - - - - total IPOPT 86 - 8 2 - 22 - 118

### Solver return definitions:

 Outcome Model Status Solver Status optimal 1 or 15 1 locally optimal 2 any feasible 7 or 16 or 17 1 or 2 or 3 or 4 or 5 infeasible 4 or 5 or 19 1 unbounded 3 or 18 1 fail all other all other

### Solver Resource Times

• Models for each solver pair outcome. Listed are the solver resource times TIME(.) in seconds, as well as the ratio RATIO(./.) of resource times for the two solvers if both solved optimally.
• Also listed are the objective values OBJ(.) using both solvers. The better solution found is listed in boldface. A solution is considered better, if the relative objective function difference is greater than 1.00E-05. If both solutions are less than 1e-1, we use the absolute difference.
• Solver resource time ratios for a particular model are listed only if one solver has resource greater than 5.00E-02.

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Obj (GLPK424) Obj (IPOPT) aa01 11.4300 12.3600 0.925 55535.43638822 55535.43638976 aa03 9.5000 9.7600 0.973 49616.36363636 49616.36363764 air02 0.1200 2.6400 0.045 7640.00000000 7640.00000649 air06 9.4700 9.7100 0.975 49616.36363636 49616.36363764 car4 0.8000 2.7900 0.287 35.46037017 35.46037049 cari 0.2000 6.8800 0.029 581.89305779 581.89305792 co5 8.9700 13.4400 0.667 714469.55375105 714469.73326788 co9 47.8600 33.0000 1.450 946920.43028456 946920.50625303 cq5 6.1500 12.8100 0.480 400133.80747262 400134.39901265 cq9 25.8300 50.5400 0.511 505541.70980727 505541.71044040 crew1 0.2700 1.3000 0.208 20.55555556 20.55556533 ex3sta1 5.0700 34.5600 0.147 -63.07540325 -63.07540325 fit2d 9.4900 5.7300 1.656 -68464.29329383 -68464.29328530 fit2p 6.4100 1.8900 3.392 68464.29329383 68464.29330257 fome11 0.1200 141.2700 0.001 0.00000000 0.02915743 fome12 0.3500 285.3700 0.001 0.00000000 0.05831487 gen2 41.2600 10.4500 3.948 3.29279078 3.29279078 jendrec1 9.6000 6.1500 1.561 7028.46051135 7028.46051765 ken-11 12.2500 6.8200 1.796 -6972382262.51996900 -6972382262.51996000 ken-13 73.1800 25.5600 2.863 -1.0257394789482E+10 -1.0257394789482E+10 lp22 118.7500 189.6500 0.626 458.94459411 459.00933769 maros-r7 5.9500 44.3000 0.134 1497185.16647964 1497185.16647971 mod2 218.1700 183.7800 1.187 27737371.36445520 27737371.36472430 model11 5.4100 16.2900 0.332 0.00000000 0.00102069 model5 3.0200 325.9300 0.009 -858440.72907343 -858440.72885225 model7 4.2100 6.7100 0.627 49380.08549287 49380.08570984 model9 2.6900 14.9600 0.180 -141123.09361331 -141123.01524906 nemspmm1 5.0000 5.6700 0.882 -327415.83567076 -327415.83567071 nemspmm2 5.9800 9.4600 0.632 -291794.83608908 -291794.77219164 nemswrld 160.5400 68.0800 2.358 260.30896600 260.30950771 nsir1 0.9900 9.1600 0.108 -28909033.00000000 -28909033.00000000 nsir2 0.4700 11.6700 0.040 -27175593.50000000 -27175593.49999990 osa-07 0.6300 52.1000 0.012 535722.51729935 535722.51966222 p010 15.0900 208.0300 0.073 1115047.91511082 1115047.91511092 p05 3.8100 102.9900 0.037 556000.27662588 556000.27662593 pcb3000 4.0900 3.6400 1.124 137416.41961282 137416.45014264 pds-06 3.7400 115.5100 0.032 27761037600.00000000 27761037600.00020000 pds-10 15.4100 1188.9500 0.013 26727094976.00000000 26727094976.00040000 pilot87 16.0000 48.7900 0.328 301.71034733 301.71036899 r05 4.1500 21.4800 0.193 557831.85904066 557831.85904074 rat1 3.5900 941.4600 0.004 1999531.66287928 1999531.66287934 rat5 4.6700 268.7100 0.017 3083707.01043841 3083707.01043848 rosen10 1.4500 1.5700 0.924 -174215.45613870 -174215.45613866 scfxm1-2b-64 31.0100 11.9400 2.597 2877.56386371 2877.56386502 scfxm1-2r-64 6.5900 4.8900 1.348 2877.56386371 2877.56397453 scfxm1-2r-96 14.7800 8.2300 1.796 2891.70611371 2891.70613527 scrs8-2r-512 13.6100 620.8200 0.022 1074.09934157 1074.09934613 scsd8-2b-64 19.2400 1.8100 10.630 15.99866803 15.99866838 scsd8-2c-64 20.3400 1.9600 10.378 14.99923200 14.99923234 scsd8-2r-108 3.2500 1.1700 2.778 23.69999434 23.69999901 scsd8-2r-216 12.7300 2.7700 4.596 23.39998416 23.40001016 sctap1-2b-64 5.2000 3.6300 1.433 484.56000000 484.56000007 slptsk 3.2200 19.7100 0.163 29.89536602 29.89536603 south31 105.3600 10.1300 10.401 1818940197.10106000 1818940197.10111000 stocfor3 6.4700 10.7400 0.602 -39976.78394365 -39976.78394355 testbig 8.1300 2.8100 2.893 -60.42296073 -59.71377151 wood1p 0.2100 2.7000 0.078 1.44290241 1.44290243 world 263.7200 207.3300 1.272 40364873.11417860 40364873.43040490 bas1lp 2.1900 337.6200 0.006 363.00000000 363.00000000 fome13 1.0200 610.7900 0.002 0.00000000 0.11662974 ken-18 1312.6400 219.6100 5.977 -5.2217025287397E+10 -5.2217025287397E+10 kl02 0.8700 17.3100 0.050 215.25000000 215.25001839 nsct1 8.6300 1006.0100 0.009 -38922436.00000000 -38922435.93294140 nsct2 1.8700 2581.9800 0.001 -37175082.00000000 -37175081.99999980 osa-14 2.9800 107.6000 0.028 1106462.84473626 1106462.97722514 osa-30 11.4300 340.9000 0.034 2142139.87320976 2142140.84747442 rail507 27.3400 45.3000 0.604 172.14556668 172.14556730 rail516 12.6200 49.8800 0.253 182.00000000 182.00000041 rail582 27.3200 52.9000 0.516 209.71223296 209.71223433 rat7a 42.9100 502.1800 0.085 2074371.41572798 2074371.41572835 rlfddd 45.7900 9.8200 4.663 -13.00000000 -12.99999327 rlfdual 2019.4600 52.9900 38.110 -1.00000000 -0.99999942 rlfprim 35.7600 70.9300 0.504 1.00000000 1.00001341 route 24.1100 15.2600 1.580 5941.65027667 5941.65028002 scfxm1-2r-256 122.3600 21.0100 5.824 2891.70611371 2892.02010444 scsd8-2r-432 61.9200 5.4300 11.403 25.79997076 25.80002199 sctap1-2r-480 16.1500 6.7800 2.382 248.50000000 248.50005301 t0331-4l 52.7500 49.2900 1.070 29730.03335194 29730.03339568 us04 1.4600 19.6100 0.074 17731.66666667 17731.66666807 dbir2 4.6300 287.1000 0.016 -6116916.50000000 -6116916.49999969 nemsemm1 10.5200 93.5200 0.112 512959.60078798 512961.33657851 nw14 2.8900 325.8000 0.009 61844.00000000 61844.00012271 osa-60 54.3000 2188.0000 0.025 4044072.50315743 4044072.78288264

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Obj (GLPK424) Obj (IPOPT) lpl3 12.2500 4012.5000 0.003 27318.00000000 85862.06506435 model10 19.0900 3636.8400 0.005 -154599.62130064 -154596.55370901 nug15 3372.2200 3704.2200 0.910 1040.99404096 1040.99847639 qap15 3304.4400 3877.4700 0.852 1040.99404096 1040.99431703 fome20 348.7200 3754.2400 0.093 23821658640.00000000 23824323635.80390000 nemsemm2 8.3700 5386.9500 0.002 581079.57090469 590853.36666951 pds-20 348.8200 3763.9900 0.093 23821658640.00000000 23824323635.80390000

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Obj (GLPK424) Status (IPOPT) baxter 20.9900 NA --- 56007255.67225311 mstat(13) sstat(10) ulevimin 151.1300 3600.4600 --- -5191101861.43196900 mstat( 6) sstat( 3) cre-b 16.2700 4393.6500 --- 23129639.88683240 mstat( 6) sstat( 3) cre-d 10.9700 NA --- 24454969.76454920 mstat(13) sstat(10) fome21 2495.8900 3677.8200 --- 47346318912.00000000 mstat( 6) sstat( 3) pds-30 1170.4000 3690.6200 --- 21385445736.00000000 mstat( 6) sstat( 3) pds-40 3121.6700 3651.3200 --- 18855198824.00000000 mstat( 6) sstat( 3) dbic1 633.7900 NA --- -9768973.00000000 mstat(13) sstat(13) dbir1 15.3700 3603.5200 --- -8106707.00000000 mstat( 6) sstat( 3) self 10.1400 NA --- 0.00000000 mstat(13) sstat(10)

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Status (GLPK424) Status (IPOPT) bgindy 0.3000 6.3700 --- mstat(19) sstat( 1) mstat( 4) sstat( 1) gosh 1.5900 896.3200 --- mstat(19) sstat( 1) mstat( 4) sstat( 1)

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Status (GLPK424) Status (IPOPT) lpl1 419.0500 NA --- mstat(19) sstat( 1) mstat(13) sstat(10) sgpf5y6 0.4000 NA --- mstat(19) sstat( 1) mstat(13) sstat(10)

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Status (GLPK424) Obj (IPOPT) gen1 3597.3400 3.9500 --- mstat(14) sstat( 3) 0.00000797 gen4 3596.2600 13.8700 --- mstat(14) sstat( 3) 0.00001303 l30 NA 3.1200 --- mstat(13) sstat(13) 0.95213670

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Status (GLPK424) Obj (IPOPT) rail2586 3601.2500 3602.5400 --- mstat(14) sstat( 3) 1174.25360797

 Modelname Time (GLPK424) Time (IPOPT) Ratio (GLPK424/IPOPT) Status (GLPK424) Status (IPOPT) nug20 3628.0400 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-50 3594.4300 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-60 3599.9400 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) watson_1 3599.4000 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) nug30 3604.9300 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) pds-100 3600.5800 29813.5800 --- mstat(14) sstat( 3) mstat( 6) sstat( 3) pds-70 3600.0400 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-80 3600.1800 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) pds-90 3600.7800 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) rail4284 3610.9900 NA --- mstat(14) sstat( 3) mstat(13) sstat(10)

 Modelname Time (GLPK424) Obj (GLPK424) aa01 11.4300 55535.43638822 aa03 9.5000 49616.36363636 air02 0.1200 7640.00000000 air06 9.4700 49616.36363636 baxter 20.9900 56007255.67225311 car4 0.8000 35.46037017 cari 0.2000 581.89305779 co5 8.9700 714469.55375105 co9 47.8600 946920.43028456 cq5 6.1500 400133.80747262 cq9 25.8300 505541.70980727 crew1 0.2700 20.55555556 ex3sta1 5.0700 -63.07540325 fit2d 9.4900 -68464.29329383 fit2p 6.4100 68464.29329383 fome11 0.1200 0.00000000 fome12 0.3500 0.00000000 gen2 41.2600 3.29279078 jendrec1 9.6000 7028.46051135 ken-11 12.2500 -6972382262.51996900 ken-13 73.1800 -1.0257394789482E+10 lp22 118.7500 458.94459411 lpl3 12.2500 27318.00000000 maros-r7 5.9500 1497185.16647964 mod2 218.1700 27737371.36445520 model10 19.0900 -154599.62130064 model11 5.4100 0.00000000 model5 3.0200 -858440.72907343 model7 4.2100 49380.08549287 model9 2.6900 -141123.09361331 nemspmm1 5.0000 -327415.83567076 nemspmm2 5.9800 -291794.83608908 nemswrld 160.5400 260.30896600 nsir1 0.9900 -28909033.00000000 nsir2 0.4700 -27175593.50000000 nug15 3372.2200 1040.99404096 osa-07 0.6300 535722.51729935 p010 15.0900 1115047.91511082 p05 3.8100 556000.27662588 pcb3000 4.0900 137416.41961282 pds-06 3.7400 27761037600.00000000 pds-10 15.4100 26727094976.00000000 pilot87 16.0000 301.71034733 qap15 3304.4400 1040.99404096 r05 4.1500 557831.85904066 rat1 3.5900 1999531.66287928 rat5 4.6700 3083707.01043841 rosen10 1.4500 -174215.45613870 scfxm1-2b-64 31.0100 2877.56386371 scfxm1-2r-64 6.5900 2877.56386371 scfxm1-2r-96 14.7800 2891.70611371 scrs8-2r-512 13.6100 1074.09934157 scsd8-2b-64 19.2400 15.99866803 scsd8-2c-64 20.3400 14.99923200 scsd8-2r-108 3.2500 23.69999434 scsd8-2r-216 12.7300 23.39998416 sctap1-2b-64 5.2000 484.56000000 slptsk 3.2200 29.89536602 south31 105.3600 1818940197.10106000 stocfor3 6.4700 -39976.78394365 testbig 8.1300 -60.42296073 ulevimin 151.1300 -5191101861.43196900 wood1p 0.2100 1.44290241 world 263.7200 40364873.11417860 bas1lp 2.1900 363.00000000 cre-b 16.2700 23129639.88683240 cre-d 10.9700 24454969.76454920 fome13 1.0200 0.00000000 fome20 348.7200 23821658640.00000000 fome21 2495.8900 47346318912.00000000 ken-18 1312.6400 -5.2217025287397E+10 kl02 0.8700 215.25000000 nemsemm2 8.3700 581079.57090469 nsct1 8.6300 -38922436.00000000 nsct2 1.8700 -37175082.00000000 osa-14 2.9800 1106462.84473626 osa-30 11.4300 2142139.87320976 pds-20 348.8200 23821658640.00000000 pds-30 1170.4000 21385445736.00000000 pds-40 3121.6700 18855198824.00000000 rail507 27.3400 172.14556668 rail516 12.6200 182.00000000 rail582 27.3200 209.71223296 rat7a 42.9100 2074371.41572798 rlfddd 45.7900 -13.00000000 rlfdual 2019.4600 -1.00000000 rlfprim 35.7600 1.00000000 route 24.1100 5941.65027667 scfxm1-2r-256 122.3600 2891.70611371 scsd8-2r-432 61.9200 25.79997076 sctap1-2r-480 16.1500 248.50000000 t0331-4l 52.7500 29730.03335194 us04 1.4600 17731.66666667 dbic1 633.7900 -9768973.00000000 dbir1 15.3700 -8106707.00000000 dbir2 4.6300 -6116916.50000000 nemsemm1 10.5200 512959.60078798 nw14 2.8900 61844.00000000 osa-60 54.3000 4044072.50315743 self 10.1400 0.00000000

 Modelname Time (GLPK424) Status (GLPK424) bgindy -- mstat(19) sstat( 1) gosh -- mstat(19) sstat( 1) lpl1 -- mstat(19) sstat( 1) sgpf5y6 -- mstat(19) sstat( 1)

 Modelname Time (GLPK424) Status (GLPK424) gen1 -- mstat(14) sstat( 3) gen4 -- mstat(14) sstat( 3) l30 -- mstat(13) sstat(13) nug20 -- mstat(14) sstat( 3) pds-50 -- mstat(14) sstat( 3) pds-60 -- mstat(14) sstat( 3) watson_1 -- mstat(14) sstat( 3) nug30 -- mstat(14) sstat( 3) pds-100 -- mstat(14) sstat( 3) pds-70 -- mstat(14) sstat( 3) pds-80 -- mstat(14) sstat( 3) pds-90 -- mstat(14) sstat( 3) rail2586 -- mstat(14) sstat( 3) rail4284 -- mstat(14) sstat( 3)

 Modelname Time (IPOPT) Obj (IPOPT) aa01 12.3600 55535.43638976 aa03 9.7600 49616.36363764 air02 2.6400 7640.00000649 air06 9.7100 49616.36363764 car4 2.7900 35.46037049 cari 6.8800 581.89305792 co5 13.4400 714469.73326788 co9 33.0000 946920.50625303 cq5 12.8100 400134.39901265 cq9 50.5400 505541.71044040 crew1 1.3000 20.55556533 ex3sta1 34.5600 -63.07540325 fit2d 5.7300 -68464.29328530 fit2p 1.8900 68464.29330257 fome11 141.2700 0.02915743 fome12 285.3700 0.05831487 gen1 3.9500 0.00000797 gen2 10.4500 3.29279078 gen4 13.8700 0.00001303 jendrec1 6.1500 7028.46051765 ken-11 6.8200 -6972382262.51996000 ken-13 25.5600 -1.0257394789482E+10 l30 3.1200 0.95213670 lp22 189.6500 459.00933769 maros-r7 44.3000 1497185.16647971 mod2 183.7800 27737371.36472430 model11 16.2900 0.00102069 model5 325.9300 -858440.72885225 model7 6.7100 49380.08570984 model9 14.9600 -141123.01524906 nemspmm1 5.6700 -327415.83567071 nemspmm2 9.4600 -291794.77219164 nemswrld 68.0800 260.30950771 nsir1 9.1600 -28909033.00000000 nsir2 11.6700 -27175593.49999990 osa-07 52.1000 535722.51966222 p010 208.0300 1115047.91511092 p05 102.9900 556000.27662593 pcb3000 3.6400 137416.45014264 pds-06 115.5100 27761037600.00020000 pds-10 1188.9500 26727094976.00040000 pilot87 48.7900 301.71036899 r05 21.4800 557831.85904074 rat1 941.4600 1999531.66287934 rat5 268.7100 3083707.01043848 rosen10 1.5700 -174215.45613866 scfxm1-2b-64 11.9400 2877.56386502 scfxm1-2r-64 4.8900 2877.56397453 scfxm1-2r-96 8.2300 2891.70613527 scrs8-2r-512 620.8200 1074.09934613 scsd8-2b-64 1.8100 15.99866838 scsd8-2c-64 1.9600 14.99923234 scsd8-2r-108 1.1700 23.69999901 scsd8-2r-216 2.7700 23.40001016 sctap1-2b-64 3.6300 484.56000007 slptsk 19.7100 29.89536603 south31 10.1300 1818940197.10111000 stocfor3 10.7400 -39976.78394355 testbig 2.8100 -59.71377151 wood1p 2.7000 1.44290243 world 207.3300 40364873.43040490 bas1lp 337.6200 363.00000000 fome13 610.7900 0.11662974 ken-18 219.6100 -5.2217025287397E+10 kl02 17.3100 215.25001839 nsct1 1006.0100 -38922435.93294140 nsct2 2581.9800 -37175081.99999980 osa-14 107.6000 1106462.97722514 osa-30 340.9000 2142140.84747442 rail507 45.3000 172.14556730 rail516 49.8800 182.00000041 rail582 52.9000 209.71223433 rat7a 502.1800 2074371.41572835 rlfddd 9.8200 -12.99999327 rlfdual 52.9900 -0.99999942 rlfprim 70.9300 1.00001341 route 15.2600 5941.65028002 scfxm1-2r-256 21.0100 2892.02010444 scsd8-2r-432 5.4300 25.80002199 sctap1-2r-480 6.7800 248.50005301 t0331-4l 49.2900 29730.03339568 us04 19.6100 17731.66666807 dbir2 287.1000 -6116916.49999969 nemsemm1 93.5200 512961.33657851 nw14 325.8000 61844.00012271 osa-60 2188.0000 4044072.78288264

 Modelname Time (IPOPT) Obj (IPOPT) lpl3 4012.5000 85862.06506435 model10 3636.8400 -154596.55370901 nug15 3704.2200 1040.99847639 qap15 3877.4700 1040.99431703 fome20 3754.2400 23824323635.80390000 nemsemm2 5386.9500 590853.36666951 pds-20 3763.9900 23824323635.80390000 rail2586 3602.5400 1174.25360797

 Modelname Time (IPOPT) Status (IPOPT) bgindy -- mstat( 4) sstat( 1) gosh -- mstat( 4) sstat( 1)