## 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-MEHROTRA 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 : 7-IPOPT-1.trc Solvers used : GLPK424 IPOPT-MEHROTRA Modeltype(s) LP

 IPOPT-MEHROTRA: optimal IPOPT-MEHROTRA: locally optimal IPOPT-MEHROTRA: feasible IPOPT-MEHROTRA: infeasible IPOPT-MEHROTRA: unbounded IPOPT-MEHROTRA: fail IPOPT-MEHROTRA: no data total GLPK424 GLPK424: optimal 91 - 1 - - 8 - 100 GLPK424: locally optimal - - - - - - - - GLPK424: feasible - - - - - - - - GLPK424: infeasible - - - - - 4 - 4 GLPK424: unbounded - - - - - - - - GLPK424: fail 3 - 1 - - 10 - 14 GLPK424: no data - - - - - - - - total IPOPT-MEHROTRA 94 - 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-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Obj (GLPK424) Obj (IPOPT-MEHROTRA) aa01 11.4300 4.6500 2.458 55535.43638822 55535.43638976 aa03 9.5000 3.2500 2.923 49616.36363636 49616.36363779 air02 0.1200 1.5700 0.076 7640.00000000 7640.00000685 air06 9.4700 3.2600 2.905 49616.36363636 49616.36363779 baxter 20.9900 40.2200 0.522 56007255.67225311 56007255.68220491 car4 0.8000 1.2100 0.661 35.46037017 35.46038611 cari 0.2000 6.2300 0.032 581.89305779 581.89305780 co5 8.9700 5.3400 1.680 714469.55375105 714469.58102212 co9 47.8600 22.8100 2.098 946920.43028456 946920.49646302 cq5 6.1500 4.1700 1.475 400133.80747262 400133.80948837 cq9 25.8300 19.9100 1.297 505541.70980727 505541.70995496 crew1 0.2700 0.6400 0.422 20.55555556 20.55555579 ex3sta1 5.0700 41.0600 0.123 -63.07540325 -63.07540325 fit2d 9.4900 4.8800 1.945 -68464.29329383 -68464.29322686 fit2p 6.4100 0.9800 6.541 68464.29329383 68464.29329394 fome11 0.1200 170.9700 0.001 0.00000000 0.02571471 fome12 0.3500 350.2200 0.001 0.00000000 0.05142942 gen2 41.2600 7.1200 5.795 3.29279078 3.29279078 jendrec1 9.6000 3.1700 3.028 7028.46051135 7028.46051883 ken-11 12.2500 3.2900 3.723 -6972382262.51996900 -6972382262.51996000 ken-13 73.1800 6.9000 10.606 -1.0257394789482E+10 -1.0257394789482E+10 lp22 118.7500 103.3100 1.149 458.94459411 458.94465074 maros-r7 5.9500 10.2000 0.583 1497185.16647964 1497185.16647971 mod2 218.1700 1183.6500 0.184 27737371.36445520 27737371.36747100 model10 19.0900 218.6100 0.087 -154599.62130064 -154599.62123266 model11 5.4100 2.0200 2.678 0.00000000 0.00102090 model5 3.0200 7.4700 0.404 -858440.72907343 -858440.71278465 model7 4.2100 25.3000 0.166 49380.08549287 49380.08549798 model9 2.6900 83.0200 0.032 -141123.09361331 -141123.09274295 nemspmm1 5.0000 2.0400 2.451 -327415.83567076 -327415.83567071 nemspmm2 5.9800 3.3700 1.774 -291794.83608908 -291794.82815276 nemswrld 160.5400 36.1000 4.447 260.30896600 260.30906290 nsir1 0.9900 24.4900 0.040 -28909033.00000000 -28909033.00000000 nsir2 0.4700 7.9100 0.059 -27175593.50000000 -27175593.49999990 nug15 3372.2200 2928.4300 1.152 1040.99404096 1040.99405336 osa-07 0.6300 19.4100 0.032 535722.51729935 535722.51731281 p010 15.0900 3.6300 4.157 1115047.91511082 1115047.91511097 p05 3.8100 1.5600 2.442 556000.27662588 556000.27662606 pcb3000 4.0900 1.7100 2.392 137416.41961282 137416.43123403 pilot87 16.0000 13.8600 1.154 301.71034733 301.71579925 qap15 3304.4400 2520.9100 1.311 1040.99404096 1040.99405335 r05 4.1500 7.6100 0.545 557831.85904066 557831.85904078 rat1 3.5900 14.8900 0.241 1999531.66287928 1999531.66288582 rat5 4.6700 13.4200 0.348 3083707.01043841 3083707.01043848 rosen10 1.4500 0.7700 1.883 -174215.45613870 -174215.45613866 scfxm1-2b-64 31.0100 4.1500 7.472 2877.56386371 2877.56386391 scfxm1-2r-64 6.5900 1.6300 4.043 2877.56386371 2877.56386378 scfxm1-2r-96 14.7800 7.5800 1.950 2891.70611371 2891.70611381 scrs8-2r-512 13.6100 101.6800 0.134 1074.09934157 1074.09934625 scsd8-2b-64 19.2400 1.0100 19.050 15.99866803 15.99866840 scsd8-2c-64 20.3400 1.0100 20.139 14.99923200 14.99923237 scsd8-2r-108 3.2500 0.5600 5.804 23.69999434 23.69999449 scsd8-2r-216 12.7300 1.2600 10.103 23.39998416 23.39998427 sctap1-2b-64 5.2000 2.0700 2.512 484.56000000 484.56000007 slptsk 3.2200 10.9700 0.294 29.89536602 29.89536603 south31 105.3600 3.2900 32.024 1818940197.10106000 1818940197.10111000 stocfor3 6.4700 2.2700 2.850 -39976.78394365 -39976.78394145 testbig 8.1300 1.1700 6.949 -60.42296073 -60.42296055 ulevimin 151.1300 48.5300 3.114 -5191101861.43196900 -5191101861.43194000 wood1p 0.2100 2.0200 0.104 1.44290241 1.44290249 world 263.7200 317.8000 0.830 40364873.11417860 40364873.11464940 bas1lp 2.1900 39.3900 0.056 363.00000000 363.00000000 cre-b 16.2700 3461.4800 0.005 23129639.88683240 23129639.88775590 cre-d 10.9700 2397.6500 0.005 24454969.76454920 24454969.76567270 fome13 1.0200 746.8400 0.001 0.00000000 0.10285884 fome20 348.7200 3440.8100 0.101 23821658640.00000000 23821658640.00090000 ken-18 1312.6400 307.3200 4.271 -5.2217025287397E+10 -5.2217025287397E+10 kl02 0.8700 10.7300 0.081 215.25000000 215.25000045 nemsemm2 8.3700 5.8600 1.428 581079.57090469 581079.64415548 nsct2 1.8700 750.4900 0.002 -37175082.00000000 -37175081.99630610 osa-14 2.9800 91.1500 0.033 1106462.84473626 1106462.84478891 osa-30 11.4300 330.9300 0.035 2142139.87320976 2142139.87327632 pds-20 348.8200 3437.3600 0.101 23821658640.00000000 23821658640.00090000 rail507 27.3400 22.9600 1.191 172.14556668 172.14556730 rail516 12.6200 19.3900 0.651 182.00000000 182.00000081 rail582 27.3200 31.8800 0.857 209.71223296 209.71223351 rat7a 42.9100 37.5800 1.142 2074371.41572798 2074371.41572835 rlfddd 45.7900 12.2700 3.732 -13.00000000 -12.99999932 rlfdual 2019.4600 57.9300 34.860 -1.00000000 -0.99999942 rlfprim 35.7600 82.3500 0.434 1.00000000 1.00000074 route 24.1100 9.6300 2.504 5941.65027667 5941.65028001 scfxm1-2r-256 122.3600 11.1800 10.945 2891.70611371 2891.70611409 scsd8-2r-432 61.9200 2.9600 20.919 25.79997076 25.79997250 sctap1-2r-480 16.1500 4.7800 3.379 248.50000000 248.50000011 t0331-4l 52.7500 22.9500 2.298 29730.03335194 29730.03335564 us04 1.4600 18.0200 0.081 17731.66666667 17731.66667683 dbic1 633.7900 1590.9200 0.398 -9768973.00000000 -9768973.00014886 dbir2 4.6300 227.6700 0.020 -6116916.50000000 -6116916.49999329 nemsemm1 10.5200 44.1500 0.238 512959.60078798 512959.68358962 nw14 2.8900 295.5400 0.010 61844.00000000 61844.00014182 osa-60 54.3000 1977.1600 0.027 4044072.50315743 4044072.50396332

 Modelname Time (GLPK424) Time (IPOPT-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Obj (GLPK424) Obj (IPOPT-MEHROTRA) lpl3 12.2500 3853.7000 0.003 27318.00000000 30010.04036022

 Modelname Time (GLPK424) Time (IPOPT-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Obj (GLPK424) Status (IPOPT-MEHROTRA) pds-06 3.7400 3600.2300 --- 27761037600.00000000 mstat( 6) sstat( 3) pds-10 15.4100 3600.2300 --- 26727094976.00000000 mstat( 6) sstat( 3) fome21 2495.8900 3631.3600 --- 47346318912.00000000 mstat( 6) sstat( 3) nsct1 8.6300 3608.9800 --- -38922436.00000000 mstat( 6) sstat( 3) pds-30 1170.4000 3663.2600 --- 21385445736.00000000 mstat( 6) sstat( 3) pds-40 3121.6700 4005.3300 --- 18855198824.00000000 mstat( 6) sstat( 3) dbir1 15.3700 3614.5900 --- -8106707.00000000 mstat( 6) sstat( 3) self 10.1400 NA --- 0.00000000 mstat(13) sstat(10)

 Modelname Time (GLPK424) Time (IPOPT-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Status (GLPK424) Status (IPOPT-MEHROTRA) bgindy 0.3000 3604.1900 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) gosh 1.5900 3600.1600 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) lpl1 419.0500 3609.3600 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) sgpf5y6 0.4000 NA --- mstat(19) sstat( 1) mstat(13) sstat(10)

 Modelname Time (GLPK424) Time (IPOPT-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Status (GLPK424) Obj (IPOPT-MEHROTRA) gen1 3597.3400 4.5900 --- mstat(14) sstat( 3) 0.00000165 gen4 3596.2600 12.6000 --- mstat(14) sstat( 3) 0.00000934 l30 NA 1.3300 --- mstat(13) sstat(13) 0.94206073

 Modelname Time (GLPK424) Time (IPOPT-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Status (GLPK424) Obj (IPOPT-MEHROTRA) rail2586 3601.2500 3601.2100 --- mstat(14) sstat( 3) 940.56063377

 Modelname Time (GLPK424) Time (IPOPT-MEHROTRA) Ratio (GLPK424/IPOPT-MEHROTRA) Status (GLPK424) Status (IPOPT-MEHROTRA) 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(10) pds-100 3600.5800 29393.0100 --- 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-MEHROTRA) Obj (IPOPT-MEHROTRA) aa01 4.6500 55535.43638976 aa03 3.2500 49616.36363779 air02 1.5700 7640.00000685 air06 3.2600 49616.36363779 baxter 40.2200 56007255.68220491 car4 1.2100 35.46038611 cari 6.2300 581.89305780 co5 5.3400 714469.58102212 co9 22.8100 946920.49646302 cq5 4.1700 400133.80948837 cq9 19.9100 505541.70995496 crew1 0.6400 20.55555579 ex3sta1 41.0600 -63.07540325 fit2d 4.8800 -68464.29322686 fit2p 0.9800 68464.29329394 fome11 170.9700 0.02571471 fome12 350.2200 0.05142942 gen1 4.5900 0.00000165 gen2 7.1200 3.29279078 gen4 12.6000 0.00000934 jendrec1 3.1700 7028.46051883 ken-11 3.2900 -6972382262.51996000 ken-13 6.9000 -1.0257394789482E+10 l30 1.3300 0.94206073 lp22 103.3100 458.94465074 maros-r7 10.2000 1497185.16647971 mod2 1183.6500 27737371.36747100 model10 218.6100 -154599.62123266 model11 2.0200 0.00102090 model5 7.4700 -858440.71278465 model7 25.3000 49380.08549798 model9 83.0200 -141123.09274295 nemspmm1 2.0400 -327415.83567071 nemspmm2 3.3700 -291794.82815276 nemswrld 36.1000 260.30906290 nsir1 24.4900 -28909033.00000000 nsir2 7.9100 -27175593.49999990 nug15 2928.4300 1040.99405336 osa-07 19.4100 535722.51731281 p010 3.6300 1115047.91511097 p05 1.5600 556000.27662606 pcb3000 1.7100 137416.43123403 pilot87 13.8600 301.71579925 qap15 2520.9100 1040.99405335 r05 7.6100 557831.85904078 rat1 14.8900 1999531.66288582 rat5 13.4200 3083707.01043848 rosen10 0.7700 -174215.45613866 scfxm1-2b-64 4.1500 2877.56386391 scfxm1-2r-64 1.6300 2877.56386378 scfxm1-2r-96 7.5800 2891.70611381 scrs8-2r-512 101.6800 1074.09934625 scsd8-2b-64 1.0100 15.99866840 scsd8-2c-64 1.0100 14.99923237 scsd8-2r-108 0.5600 23.69999449 scsd8-2r-216 1.2600 23.39998427 sctap1-2b-64 2.0700 484.56000007 slptsk 10.9700 29.89536603 south31 3.2900 1818940197.10111000 stocfor3 2.2700 -39976.78394145 testbig 1.1700 -60.42296055 ulevimin 48.5300 -5191101861.43194000 wood1p 2.0200 1.44290249 world 317.8000 40364873.11464940 bas1lp 39.3900 363.00000000 cre-b 3461.4800 23129639.88775590 cre-d 2397.6500 24454969.76567270 fome13 746.8400 0.10285884 fome20 3440.8100 23821658640.00090000 ken-18 307.3200 -5.2217025287397E+10 kl02 10.7300 215.25000045 nemsemm2 5.8600 581079.64415548 nsct2 750.4900 -37175081.99630610 osa-14 91.1500 1106462.84478891 osa-30 330.9300 2142139.87327632 pds-20 3437.3600 23821658640.00090000 rail507 22.9600 172.14556730 rail516 19.3900 182.00000081 rail582 31.8800 209.71223351 rat7a 37.5800 2074371.41572835 rlfddd 12.2700 -12.99999932 rlfdual 57.9300 -0.99999942 rlfprim 82.3500 1.00000074 route 9.6300 5941.65028001 scfxm1-2r-256 11.1800 2891.70611409 scsd8-2r-432 2.9600 25.79997250 sctap1-2r-480 4.7800 248.50000011 t0331-4l 22.9500 29730.03335564 us04 18.0200 17731.66667683 dbic1 1590.9200 -9768973.00014886 dbir2 227.6700 -6116916.49999329 nemsemm1 44.1500 512959.68358962 nw14 295.5400 61844.00014182 osa-60 1977.1600 4044072.50396332

 Modelname Time (IPOPT-MEHROTRA) Obj (IPOPT-MEHROTRA) lpl3 3853.7000 30010.04036022 rail2586 3601.2100 940.56063377