## Solver Square Comparison: Considers all models.

 Date / Time: 09/02/07 12:03:58

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 GLPK 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 : 3-GLPK-0.trc Tracefile 2 : 4-IPOPT-1.trc Solvers used : GLPK IPOPT Modeltype(s) LP

 IPOPT: optimal IPOPT: locally optimal IPOPT: feasible IPOPT: infeasible IPOPT: unbounded IPOPT: fail IPOPT: no data total GLPK GLPK: optimal 79 - 2 - - 5 - 86 GLPK: locally optimal - - - - - - - - GLPK: feasible - - - - - - - - GLPK: infeasible - - - - - 4 - 4 GLPK: unbounded - - - - - - - - GLPK: fail 14 - 1 - - 13 - 28 GLPK: no data - - - - - - - - total IPOPT 93 - 3 - - 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 (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Obj (GLPK) Obj (IPOPT) aa01 88.8300 4.6500 19.103 55535.43638822 55535.43638838 air02 0.0900 1.5900 0.057 7640.00000000 7640.00000112 baxter 14.4500 40.1900 0.360 56007255.67225311 56007255.68220491 car4 1.8700 1.2300 1.520 35.46037017 35.46038611 cari 0.1600 6.2300 0.026 581.89305779 581.89305779 co5 12.7800 5.3200 2.402 714469.55375105 714469.58102212 co9 67.2300 23.0600 2.915 946920.43028456 946920.49646302 cq5 10.3200 4.1800 2.469 400133.80747262 400133.80948837 cq9 63.5000 19.8700 3.196 505541.70980727 505541.70995496 crew1 0.2800 0.6400 0.438 20.55555556 20.55555577 ex3sta1 3.8700 40.6800 0.095 -63.07540325 -63.07540325 fit2d 7.7000 4.9100 1.568 -68464.29329383 -68464.29322924 fit2p 11.1500 0.9900 11.263 68464.29329383 68464.29329384 fome11 0.1000 171.3600 0.001 0.00000000 0.00257121 fome12 0.2700 347.7300 0.001 0.00000000 0.00514243 gen2 1192.2800 7.0000 170.326 3.29279079 3.29279078 jendrec1 6.9600 3.2600 2.135 7028.46051135 7028.46051883 ken-11 10.3400 3.2900 3.143 -6972382262.51996900 -6972382262.51996900 ken-13 67.3900 6.9600 9.682 -1.0257394789482E+10 -1.0257394789482E+10 maros-r7 2.3800 10.2600 0.232 1497185.16647964 1497185.16647965 mod2 488.1000 1184.6600 0.412 27737371.36445520 27737371.36747100 model10 35.1500 209.0000 0.168 -154599.62130064 -154599.62123990 model11 3.3000 2.0200 1.634 0.00000000 0.00016867 model5 3.2300 7.4900 0.431 -858440.72907343 -858440.71278465 model7 4.9200 32.9100 0.149 49380.08549293 49380.08553648 model9 2.7900 61.8900 0.045 -141123.09361330 -141123.09326554 nemspmm1 10.0400 2.0400 4.922 -327415.83567076 -327415.83567076 nemspmm2 10.2800 3.3600 3.060 -291794.83608908 -291794.82815276 nemswrld 340.3400 36.7600 9.258 260.30896600 260.30906290 nsir1 1.9800 24.2000 0.082 -28909033.00000000 -28909033.00000000 nsir2 0.9300 7.9200 0.117 -27175593.50000000 -27175593.49999990 osa-07 0.4300 18.6300 0.023 535722.51729935 535722.51730081 p010 21.1200 3.6500 5.786 1115047.91511082 1115047.91511083 p05 5.6000 1.5500 3.613 556000.27662588 556000.27662600 pcb3000 3.8100 1.7100 2.228 137416.41961282 137416.43123403 pilot87 54.4100 13.8700 3.923 301.71034744 301.71579925 r05 6.7700 7.6200 0.888 557831.85904066 557831.85904067 rat1 1.9600 14.9400 0.131 1999531.66287928 1999531.66288583 rat5 2.1500 13.4200 0.160 3083707.01043841 3083707.01043842 rosen10 2.8900 0.7800 3.705 -174215.45613870 -174215.45613870 scrs8-2r-512 10.0900 126.9600 0.079 1074.09934157 1074.09934213 scsd8-2b-64 10.5400 0.9900 10.646 15.99866803 15.99866807 scsd8-2c-64 9.6400 1.0100 9.545 14.99923200 14.99923204 scsd8-2r-108 2.5800 0.5600 4.607 23.69999434 23.69999436 scsd8-2r-216 11.0900 1.2600 8.802 23.39998423 23.39998406 sctap1-2b-64 4.1800 2.0700 2.019 484.56000000 484.56000001 slptsk 4.2900 11.1600 0.384 29.89536602 29.89536602 south31 108.1700 3.2900 32.878 1818940197.10106000 1818940197.10107000 stocfor3 6.1300 2.2800 2.689 -39976.78394365 -39976.78394143 testbig 6.2000 1.1800 5.254 -60.42296073 -60.42296063 wood1p 0.1300 2.0400 0.064 1.44290241 1.44290249 world 575.9200 317.4900 1.814 40364873.11417860 40364873.11446890 bas1lp 5.1500 39.3100 0.131 363.00000000 363.00000000 cre-d 13.1300 2394.9500 0.005 24454969.76454920 24454969.76555750 fome13 0.7800 738.4000 0.001 0.00000000 0.01028485 fome20 2210.8600 3468.3500 0.637 23821658640.00000000 23821658640.00010000 ken-18 1168.4900 307.2900 3.803 -5.2217025287397E+10 -5.2217025287397E+10 kl02 1.1500 11.0100 0.104 215.25000000 215.25000010 nemsemm2 7.2100 5.8600 1.230 581079.57090469 581079.64415548 nsct2 2.9600 749.4100 0.004 -37175082.00000000 -37175081.99630621 osa-14 1.8100 87.0800 0.021 1106462.84473626 1106462.84474349 osa-30 6.7200 321.4500 0.021 2142139.87320976 2142139.87321565 pds-20 2255.5100 3497.0400 0.645 23821658640.00000000 23821658640.00010000 rail507 90.4300 23.1700 3.903 172.14556668 172.14556691 rail516 46.3900 19.7300 2.351 182.00000000 182.00000071 rail582 128.1500 31.6400 4.050 209.71223296 209.71223301 rat7a 16.8700 38.3500 0.440 2074371.41573149 2074371.41572829 rlfddd 17.8400 12.3000 1.450 -13.00000000 -12.99999991 rlfprim 575.4100 81.7800 7.036 1.00000000 1.00000069 route 388.8300 9.6200 40.419 5941.65027667 5941.65027701 scsd8-2r-432 49.6700 2.9500 16.837 25.79997080 25.79997250 sctap1-2r-480 16.1900 4.8200 3.359 248.50000000 248.50000001 t0331-4l 282.9800 23.0100 12.298 29730.03335194 29730.03335310 us04 4.7600 17.6800 0.269 17731.66666667 17731.66667227 dbic1 1392.6700 1592.5100 0.875 -9768973.00000000 -9768973.00014886 dbir2 38.7500 229.4000 0.169 -6116916.50000000 -6116916.49999326 nemsemm1 5.9600 44.4600 0.134 512959.60078798 512959.68358962 nw14 3.6600 351.4600 0.010 61844.00000000 61844.00003897 osa-60 33.7400 2070.4700 0.016 4044072.50315742 4044072.50389521

 Modelname Time (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Obj (GLPK) Obj (IPOPT) lpl3 11.2500 3706.6500 0.003 27318.00000000 34530.67856900 cre-b 23.9600 3644.3600 0.007 23129639.88683240 23129639.88704360

 Modelname Time (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Obj (GLPK) Status (IPOPT) pds-06 17.0400 3600.2400 --- 27761037600.00000000 mstat( 6) sstat( 3) pds-10 116.4800 3600.0600 --- 26727094976.00000000 mstat( 6) sstat( 3) nsct1 9.5800 3606.6400 --- -38922436.00000000 mstat( 6) sstat( 3) dbir1 34.4500 3614.7600 --- -8106707.00000000 mstat( 6) sstat( 3) self 14.4700 NA --- 0.00000000 mstat(13) sstat(10)

 Modelname Time (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Status (GLPK) Status (IPOPT) bgindy 0.2200 3603.5700 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) gosh 1.4500 3600.2300 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) lpl1 1185.1000 3606.3000 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) sgpf5y6 0.3700 NA --- mstat(19) sstat( 1) mstat(13) sstat(10)

 Modelname Time (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Status (GLPK) Obj (IPOPT) gen1 3594.1200 4.6100 --- mstat(14) sstat( 3) 0.00000165 gen4 NA 12.9200 --- mstat(13) sstat(13) 0.00000934 lp22 3597.2800 102.8600 --- mstat(14) sstat( 3) 458.94465074 nug15 3595.5900 2944.4900 --- mstat(14) sstat( 3) 1040.99405336 qap15 3598.2700 2537.0500 --- mstat(14) sstat( 3) 1040.99405335 rlfdual 1931.4800 56.7000 --- mstat(13) sstat(13) -0.99999994 scfxm1-2r-256 3596.6300 11.1500 --- mstat(14) sstat( 3) 2891.70611386 aa03 3593.7200 3.2600 --- mstat(14) sstat( 3) 49616.36363651 air06 3594.3400 3.2600 --- mstat(14) sstat( 3) 49616.36363651 l30 3595.8100 1.3300 --- mstat(14) sstat( 3) 0.94206073 scfxm1-2b-64 3596.3200 4.1100 --- mstat(14) sstat( 3) 2877.56386373 scfxm1-2r-64 3594.9500 1.6200 --- mstat(14) sstat( 3) 2877.56386371 scfxm1-2r-96 3596.3800 8.0300 --- mstat(14) sstat( 3) 2891.70611372 ulevimin 3594.6800 68.9700 --- mstat(14) sstat( 3) -5191101860.83442000

 Modelname Time (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Status (GLPK) Obj (IPOPT) rail2586 3606.5700 3607.5800 --- mstat(14) sstat( 3) 6557.33662890

 Modelname Time (GLPK) Time (IPOPT) Ratio (GLPK/IPOPT) Status (GLPK) Status (IPOPT) fome21 3597.5600 3609.3300 --- mstat(14) sstat( 3) mstat( 6) sstat( 3) nug20 3622.4300 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-30 3598.1200 3630.3700 --- mstat(14) sstat( 3) mstat( 6) sstat( 3) pds-40 3597.6300 4024.9000 --- mstat(14) sstat( 3) mstat( 6) sstat( 3) pds-50 3598.9600 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-60 3599.0900 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) watson_1 3597.5800 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) nug30 3630.1700 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-100 3570.4900 35438.4600 --- mstat(14) sstat( 3) mstat( 6) sstat( 3) pds-70 3599.3300 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) pds-80 3599.9400 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) pds-90 3598.8000 NA --- mstat(14) sstat( 3) mstat(13) sstat(13) rail4284 3610.3300 NA --- mstat(14) sstat( 3) mstat(13) sstat(10)

 Modelname Time (GLPK) Obj (GLPK) aa01 88.8300 55535.43638822 air02 0.0900 7640.00000000 baxter 14.4500 56007255.67225311 car4 1.8700 35.46037017 cari 0.1600 581.89305779 co5 12.7800 714469.55375105 co9 67.2300 946920.43028456 cq5 10.3200 400133.80747262 cq9 63.5000 505541.70980727 crew1 0.2800 20.55555556 ex3sta1 3.8700 -63.07540325 fit2d 7.7000 -68464.29329383 fit2p 11.1500 68464.29329383 fome11 0.1000 0.00000000 fome12 0.2700 0.00000000 gen2 1192.2800 3.29279079 jendrec1 6.9600 7028.46051135 ken-11 10.3400 -6972382262.51996900 ken-13 67.3900 -1.0257394789482E+10 lpl3 11.2500 27318.00000000 maros-r7 2.3800 1497185.16647964 mod2 488.1000 27737371.36445520 model10 35.1500 -154599.62130064 model11 3.3000 0.00000000 model5 3.2300 -858440.72907343 model7 4.9200 49380.08549293 model9 2.7900 -141123.09361330 nemspmm1 10.0400 -327415.83567076 nemspmm2 10.2800 -291794.83608908 nemswrld 340.3400 260.30896600 nsir1 1.9800 -28909033.00000000 nsir2 0.9300 -27175593.50000000 osa-07 0.4300 535722.51729935 p010 21.1200 1115047.91511082 p05 5.6000 556000.27662588 pcb3000 3.8100 137416.41961282 pds-06 17.0400 27761037600.00000000 pds-10 116.4800 26727094976.00000000 pilot87 54.4100 301.71034744 r05 6.7700 557831.85904066 rat1 1.9600 1999531.66287928 rat5 2.1500 3083707.01043841 rosen10 2.8900 -174215.45613870 scrs8-2r-512 10.0900 1074.09934157 scsd8-2b-64 10.5400 15.99866803 scsd8-2c-64 9.6400 14.99923200 scsd8-2r-108 2.5800 23.69999434 scsd8-2r-216 11.0900 23.39998423 sctap1-2b-64 4.1800 484.56000000 slptsk 4.2900 29.89536602 south31 108.1700 1818940197.10106000 stocfor3 6.1300 -39976.78394365 testbig 6.2000 -60.42296073 wood1p 0.1300 1.44290241 world 575.9200 40364873.11417860 bas1lp 5.1500 363.00000000 cre-b 23.9600 23129639.88683240 cre-d 13.1300 24454969.76454920 fome13 0.7800 0.00000000 fome20 2210.8600 23821658640.00000000 ken-18 1168.4900 -5.2217025287397E+10 kl02 1.1500 215.25000000 nemsemm2 7.2100 581079.57090469 nsct1 9.5800 -38922436.00000000 nsct2 2.9600 -37175082.00000000 osa-14 1.8100 1106462.84473626 osa-30 6.7200 2142139.87320976 pds-20 2255.5100 23821658640.00000000 rail507 90.4300 172.14556668 rail516 46.3900 182.00000000 rail582 128.1500 209.71223296 rat7a 16.8700 2074371.41573149 rlfddd 17.8400 -13.00000000 rlfprim 575.4100 1.00000000 route 388.8300 5941.65027667 scsd8-2r-432 49.6700 25.79997080 sctap1-2r-480 16.1900 248.50000000 t0331-4l 282.9800 29730.03335194 us04 4.7600 17731.66666667 dbic1 1392.6700 -9768973.00000000 dbir1 34.4500 -8106707.00000000 dbir2 38.7500 -6116916.50000000 nemsemm1 5.9600 512959.60078798 nw14 3.6600 61844.00000000 osa-60 33.7400 4044072.50315742 self 14.4700 0.00000000

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

 Modelname Time (GLPK) Status (GLPK) gen1 -- mstat(14) sstat( 3) gen4 -- mstat(13) sstat(13) lp22 -- mstat(14) sstat( 3) nug15 -- mstat(14) sstat( 3) qap15 -- mstat(14) sstat( 3) fome21 -- mstat(14) sstat( 3) nug20 -- mstat(14) sstat( 3) pds-30 -- mstat(14) sstat( 3) pds-40 -- mstat(14) sstat( 3) pds-50 -- mstat(14) sstat( 3) pds-60 -- mstat(14) sstat( 3) rlfdual -- mstat(13) sstat(13) scfxm1-2r-256 -- 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) aa03 -- mstat(14) sstat( 3) air06 -- mstat(14) sstat( 3) l30 -- mstat(14) sstat( 3) scfxm1-2b-64 -- mstat(14) sstat( 3) scfxm1-2r-64 -- mstat(14) sstat( 3) scfxm1-2r-96 -- mstat(14) sstat( 3) ulevimin -- mstat(14) sstat( 3)

 Modelname Time (IPOPT) Obj (IPOPT) aa01 4.6500 55535.43638838 air02 1.5900 7640.00000112 baxter 40.1900 56007255.68220491 car4 1.2300 35.46038611 cari 6.2300 581.89305779 co5 5.3200 714469.58102212 co9 23.0600 946920.49646302 cq5 4.1800 400133.80948837 cq9 19.8700 505541.70995496 crew1 0.6400 20.55555577 ex3sta1 40.6800 -63.07540325 fit2d 4.9100 -68464.29322924 fit2p 0.9900 68464.29329384 fome11 171.3600 0.00257121 fome12 347.7300 0.00514243 gen1 4.6100 0.00000165 gen2 7.0000 3.29279078 gen4 12.9200 0.00000934 jendrec1 3.2600 7028.46051883 ken-11 3.2900 -6972382262.51996900 ken-13 6.9600 -1.0257394789482E+10 lp22 102.8600 458.94465074 maros-r7 10.2600 1497185.16647965 mod2 1184.6600 27737371.36747100 model10 209.0000 -154599.62123990 model11 2.0200 0.00016867 model5 7.4900 -858440.71278465 model7 32.9100 49380.08553648 model9 61.8900 -141123.09326554 nemspmm1 2.0400 -327415.83567076 nemspmm2 3.3600 -291794.82815276 nemswrld 36.7600 260.30906290 nsir1 24.2000 -28909033.00000000 nsir2 7.9200 -27175593.49999990 nug15 2944.4900 1040.99405336 osa-07 18.6300 535722.51730081 p010 3.6500 1115047.91511083 p05 1.5500 556000.27662600 pcb3000 1.7100 137416.43123403 pilot87 13.8700 301.71579925 qap15 2537.0500 1040.99405335 r05 7.6200 557831.85904067 rat1 14.9400 1999531.66288583 rat5 13.4200 3083707.01043842 rosen10 0.7800 -174215.45613870 scrs8-2r-512 126.9600 1074.09934213 scsd8-2b-64 0.9900 15.99866807 scsd8-2c-64 1.0100 14.99923204 scsd8-2r-108 0.5600 23.69999436 scsd8-2r-216 1.2600 23.39998406 sctap1-2b-64 2.0700 484.56000001 slptsk 11.1600 29.89536602 south31 3.2900 1818940197.10107000 stocfor3 2.2800 -39976.78394143 testbig 1.1800 -60.42296063 wood1p 2.0400 1.44290249 world 317.4900 40364873.11446890 bas1lp 39.3100 363.00000000 cre-d 2394.9500 24454969.76555750 fome13 738.4000 0.01028485 fome20 3468.3500 23821658640.00010000 ken-18 307.2900 -5.2217025287397E+10 kl02 11.0100 215.25000010 nemsemm2 5.8600 581079.64415548 nsct2 749.4100 -37175081.99630621 osa-14 87.0800 1106462.84474349 osa-30 321.4500 2142139.87321565 pds-20 3497.0400 23821658640.00010000 rail507 23.1700 172.14556691 rail516 19.7300 182.00000071 rail582 31.6400 209.71223301 rat7a 38.3500 2074371.41572829 rlfddd 12.3000 -12.99999991 rlfdual 56.7000 -0.99999994 rlfprim 81.7800 1.00000069 route 9.6200 5941.65027701 scfxm1-2r-256 11.1500 2891.70611386 scsd8-2r-432 2.9500 25.79997250 sctap1-2r-480 4.8200 248.50000001 t0331-4l 23.0100 29730.03335310 us04 17.6800 17731.66667227 dbic1 1592.5100 -9768973.00014886 dbir2 229.4000 -6116916.49999326 nemsemm1 44.4600 512959.68358962 nw14 351.4600 61844.00003897 osa-60 2070.4700 4044072.50389521 aa03 3.2600 49616.36363651 air06 3.2600 49616.36363651 l30 1.3300 0.94206073 scfxm1-2b-64 4.1100 2877.56386373 scfxm1-2r-64 1.6200 2877.56386371 scfxm1-2r-96 8.0300 2891.70611372 ulevimin 68.9700 -5191101860.83442000

 Modelname Time (IPOPT) Obj (IPOPT) lpl3 3706.6500 34530.67856900 cre-b 3644.3600 23129639.88704360 rail2586 3607.5800 6557.33662890