## Solver Square Comparison: Considers all models.

 Date / Time: 01/07/08 20:11:19

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 CPLEX11 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 : 1-CPLEX-0.trc Tracefile 2 : 6-IPOPT-0.trc Solvers used : CPLEX11 IPOPT Modeltype(s) LP

 IPOPT: optimal IPOPT: locally optimal IPOPT: feasible IPOPT: infeasible IPOPT: unbounded IPOPT: fail IPOPT: no data total CPLEX11 CPLEX11: optimal 86 - 8 - - 18 - 112 CPLEX11: locally optimal - - - - - - - - CPLEX11: feasible - - - - - - - - CPLEX11: infeasible - - - 2 - 2 - 4 CPLEX11: unbounded - - - - - - - - CPLEX11: fail - - - - - 2 - 2 CPLEX11: 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 (CPLEX11) Time (IPOPT) Ratio (CPLEX11/IPOPT) Obj (CPLEX11) Obj (IPOPT) aa01 1.5800 12.3600 0.128 55535.43638822 55535.43638976 aa03 0.8400 9.7600 0.086 49616.36363636 49616.36363764 air02 0.0600 2.6400 0.023 7640.00000000 7640.00000649 air06 0.8400 9.7100 0.087 49616.36363636 49616.36363764 car4 0.4200 2.7900 0.151 35.46037017 35.46037049 cari 0.1000 6.8800 0.015 581.89305779 581.89305792 co5 1.5300 13.4400 0.114 714469.55375105 714469.73326788 co9 6.4400 33.0000 0.195 946920.43028456 946920.50625303 cq5 1.1800 12.8100 0.092 400133.80747262 400134.39901265 cq9 3.5500 50.5400 0.070 505541.70980727 505541.71044040 crew1 0.2100 1.3000 0.162 20.55555556 20.55556533 ex3sta1 19.1400 34.5600 0.554 -63.07540325 -63.07540325 fit2d 0.4100 5.7300 0.072 -68464.29329383 -68464.29328530 fit2p 2.1300 1.8900 1.127 68464.29329383 68464.29330257 fome11 0.1800 141.2700 0.001 0.00000000 0.02915743 fome12 0.3400 285.3700 0.001 0.00000000 0.05831487 gen1 0.1200 3.9500 0.030 0.00000000 0.00000797 gen2 9.6300 10.4500 0.922 3.29279078 3.29279078 gen4 0.8600 13.8700 0.062 0.00000000 0.00001303 jendrec1 0.9600 6.1500 0.156 7028.46051135 7028.46051765 ken-11 0.2700 6.8200 0.040 -6972382262.51996900 -6972382262.51996000 ken-13 0.7800 25.5600 0.031 -1.0257394789482E+10 -1.0257394789482E+10 l30 12.7500 3.1200 4.087 0.95266138 0.95213670 lp22 17.3600 189.6500 0.092 458.94459411 459.00933769 maros-r7 1.3800 44.3000 0.031 1497185.16647964 1497185.16647971 mod2 3.1200 183.7800 0.017 27737371.36444540 27737371.36472430 model11 0.4600 16.2900 0.028 0.00000000 0.00102069 model5 2.2600 325.9300 0.007 -858440.72907282 -858440.72885225 model7 1.8900 6.7100 0.282 49380.08549287 49380.08570984 model9 0.7200 14.9600 0.048 -141123.09361307 -141123.01524906 nemspmm1 2.3200 5.6700 0.409 -327415.83567076 -327415.83567071 nemspmm2 2.2400 9.4600 0.237 -291794.83608908 -291794.77219164 nemswrld 23.5500 68.0800 0.346 260.30896600 260.30950771 nsir1 0.1000 9.1600 0.011 -28909033.00000000 -28909033.00000000 nsir2 0.2600 11.6700 0.022 -27175593.50000000 -27175593.49999990 osa-07 0.2000 52.1000 0.004 535722.51729935 535722.51966222 p010 0.5000 208.0300 0.002 1115047.91511082 1115047.91511092 p05 0.2400 102.9900 0.002 556000.27662588 556000.27662593 pcb3000 0.4900 3.6400 0.135 137416.41961282 137416.45014264 pds-06 0.3000 115.5100 0.003 27761037600.00000000 27761037600.00020000 pds-10 0.6200 1188.9500 0.001 26727094976.00000000 26727094976.00040000 pilot87 8.0600 48.7900 0.165 301.71061586 301.71036899 r05 0.2600 21.4800 0.012 557831.85904066 557831.85904074 rat1 0.3200 941.4600 0.000 1999531.66287928 1999531.66287934 rat5 0.9000 268.7100 0.003 3083707.01043842 3083707.01043848 rosen10 0.2800 1.5700 0.178 -174215.45613870 -174215.45613866 scfxm1-2b-64 1.4000 11.9400 0.117 2877.56386371 2877.56386502 scfxm1-2r-64 0.9500 4.8900 0.194 2877.56386371 2877.56397453 scfxm1-2r-96 1.1200 8.2300 0.136 2891.70611371 2891.70613527 scrs8-2r-512 0.1600 620.8200 0.000 1074.09934157 1074.09934613 scsd8-2b-64 0.2600 1.8100 0.144 15.99866803 15.99866838 scsd8-2c-64 0.2800 1.9600 0.143 14.99923200 14.99923234 scsd8-2r-108 0.1100 1.1700 0.094 23.69999446 23.69999901 scsd8-2r-216 0.2300 2.7700 0.083 23.39998388 23.40001016 sctap1-2b-64 0.2800 3.6300 0.077 484.56000000 484.56000007 slptsk 0.8000 19.7100 0.041 29.89536602 29.89536603 south31 36.1200 10.1300 3.566 1818940197.10106000 1818940197.10111000 stocfor3 0.7200 10.7400 0.067 -39976.78394365 -39976.78394355 testbig 0.2400 2.8100 0.085 -60.42296073 -59.71377151 wood1p 0.0600 2.7000 0.022 1.44290241 1.44290243 world 2.6200 207.3300 0.013 40364873.11413520 40364873.43040490 bas1lp 8.1100 337.6200 0.024 363.00000000 363.00000000 fome13 0.6300 610.7900 0.001 0.00000000 0.11662974 ken-18 5.0500 219.6100 0.023 -5.2217025287397E+10 -5.2217025287397E+10 kl02 0.3000 17.3100 0.017 215.25000000 215.25001839 nsct1 0.4900 1006.0100 0.000 -38922436.00000000 -38922435.93294140 nsct2 0.8700 2581.9800 0.000 -37175082.00000000 -37175081.99999980 osa-14 0.4500 107.6000 0.004 1106462.84473625 1106462.97722514 osa-30 1.0600 340.9000 0.003 2142139.87320976 2142140.84747442 rail507 5.3500 45.3000 0.118 172.14556668 172.14556730 rail516 2.4300 49.8800 0.049 182.00000000 182.00000041 rail582 3.3600 52.9000 0.064 209.71223296 209.71223433 rat7a 6.6500 502.1800 0.013 2074371.41572829 2074371.41572835 rlfddd 0.3600 9.8200 0.037 -13.00000000 -12.99999327 rlfdual 5.1500 52.9900 0.097 -1.00000000 -0.99999942 rlfprim 0.7800 70.9300 0.011 1.00000000 1.00001341 route 0.3200 15.2600 0.021 5941.65027667 5941.65028002 scfxm1-2r-256 5.9200 21.0100 0.282 2891.70611371 2892.02010444 scsd8-2r-432 0.5400 5.4300 0.099 25.79996956 25.80002199 sctap1-2r-480 0.8400 6.7800 0.124 248.50000000 248.50005301 t0331-4l 11.7100 49.2900 0.238 29730.03335194 29730.03339568 us04 0.3200 19.6100 0.016 17731.66666667 17731.66666807 dbir2 1.2800 287.1000 0.004 -6116916.50000000 -6116916.49999969 nemsemm1 1.0200 93.5200 0.011 512959.60078798 512961.33657851 nw14 1.0000 325.8000 0.003 61844.00000000 61844.00012271 osa-60 2.6900 2188.0000 0.001 4044072.50315742 4044072.78288264

 Modelname Time (CPLEX11) Time (IPOPT) Ratio (CPLEX11/IPOPT) Obj (CPLEX11) Obj (IPOPT) lpl3 1.0100 4012.5000 0.000 27318.00000000 85862.06506435 model10 7.2500 3636.8400 0.002 -154599.62127674 -154596.55370901 nug15 1338.4500 3704.2200 0.361 1040.99404096 1040.99847639 qap15 1304.2100 3877.4700 0.336 1040.99404096 1040.99431703 fome20 2.9600 3754.2400 0.001 23821658640.00000000 23824323635.80390000 nemsemm2 0.4900 5386.9500 0.000 581079.57090469 590853.36666951 pds-20 2.9800 3763.9900 0.001 23821658640.00000000 23824323635.80390000 rail2586 974.3800 3602.5400 0.270 935.92182057 1174.25360797

 Modelname Time (CPLEX11) Time (IPOPT) Ratio (CPLEX11/IPOPT) Obj (CPLEX11) Status (IPOPT) baxter 0.8400 NA --- 56007255.67225311 mstat(13) sstat(10) ulevimin 11.4800 3600.4600 --- -5191101861.43196900 mstat( 6) sstat( 3) cre-b 1.6800 4393.6500 --- 23129639.88683240 mstat( 6) sstat( 3) cre-d 0.9400 NA --- 24454969.76454920 mstat(13) sstat(10) fome21 7.8200 3677.8200 --- 47346318912.00000000 mstat( 6) sstat( 3) pds-30 6.5800 3690.6200 --- 21385445736.00000000 mstat( 6) sstat( 3) pds-40 11.1400 3651.3200 --- 18855198824.00000000 mstat( 6) sstat( 3) pds-50 18.1700 NA --- 16603525724.00000000 mstat(13) sstat(10) pds-60 26.6000 NA --- 14265904407.00000000 mstat(13) sstat(13) watson_1 15.4400 NA --- -1609.28079835 mstat(13) sstat(10) dbic1 63.0600 NA --- -9768973.00000000 mstat(13) sstat(13) dbir1 0.7800 3603.5200 --- -8106707.00000000 mstat( 6) sstat( 3) pds-100 53.8100 29813.5800 --- 10928229968.00000000 mstat( 6) sstat( 3) pds-70 34.4900 NA --- 12241162812.00000000 mstat(13) sstat(10) pds-80 44.2700 NA --- 11469077462.00000000 mstat(13) sstat(13) pds-90 52.9900 NA --- 11087561635.00000000 mstat(13) sstat(13) rail4284 2431.5700 NA --- 1054.05449127 mstat(13) sstat(10) self 5.4800 NA --- 0.00000000 mstat(13) sstat(10)

 Modelname Time (CPLEX11) Time (IPOPT) Ratio (CPLEX11/IPOPT) Status (CPLEX11) Status (IPOPT) bgindy 0.1300 6.3700 --- mstat( 4) sstat( 1) mstat( 4) sstat( 1) gosh 1.0000 896.3200 --- mstat( 4) sstat( 1) mstat( 4) sstat( 1)

 Modelname Time (CPLEX11) Time (IPOPT) Ratio (CPLEX11/IPOPT) Status (CPLEX11) Status (IPOPT) lpl1 35.5700 NA --- mstat( 4) sstat( 1) mstat(13) sstat(10) sgpf5y6 24.3500 NA --- mstat( 4) sstat( 1) mstat(13) sstat(10)

 Modelname Time (CPLEX11) Time (IPOPT) Ratio (CPLEX11/IPOPT) Status (CPLEX11) Status (IPOPT) nug20 3604.0600 NA --- mstat( 6) sstat( 3) mstat(13) sstat(10) nug30 3678.4000 NA --- mstat( 6) sstat( 3) mstat(13) sstat(13)

 Modelname Time (CPLEX11) Obj (CPLEX11) aa01 1.5800 55535.43638822 aa03 0.8400 49616.36363636 air02 0.0600 7640.00000000 air06 0.8400 49616.36363636 baxter 0.8400 56007255.67225311 car4 0.4200 35.46037017 cari 0.1000 581.89305779 co5 1.5300 714469.55375105 co9 6.4400 946920.43028456 cq5 1.1800 400133.80747262 cq9 3.5500 505541.70980727 crew1 0.2100 20.55555556 ex3sta1 19.1400 -63.07540325 fit2d 0.4100 -68464.29329383 fit2p 2.1300 68464.29329383 fome11 0.1800 0.00000000 fome12 0.3400 0.00000000 gen1 0.1200 0.00000000 gen2 9.6300 3.29279078 gen4 0.8600 0.00000000 jendrec1 0.9600 7028.46051135 ken-11 0.2700 -6972382262.51996900 ken-13 0.7800 -1.0257394789482E+10 l30 12.7500 0.95266138 lp22 17.3600 458.94459411 lpl3 1.0100 27318.00000000 maros-r7 1.3800 1497185.16647964 mod2 3.1200 27737371.36444540 model10 7.2500 -154599.62127674 model11 0.4600 0.00000000 model5 2.2600 -858440.72907282 model7 1.8900 49380.08549287 model9 0.7200 -141123.09361307 nemspmm1 2.3200 -327415.83567076 nemspmm2 2.2400 -291794.83608908 nemswrld 23.5500 260.30896600 nsir1 0.1000 -28909033.00000000 nsir2 0.2600 -27175593.50000000 nug15 1338.4500 1040.99404096 osa-07 0.2000 535722.51729935 p010 0.5000 1115047.91511082 p05 0.2400 556000.27662588 pcb3000 0.4900 137416.41961282 pds-06 0.3000 27761037600.00000000 pds-10 0.6200 26727094976.00000000 pilot87 8.0600 301.71061586 qap15 1304.2100 1040.99404096 r05 0.2600 557831.85904066 rat1 0.3200 1999531.66287928 rat5 0.9000 3083707.01043842 rosen10 0.2800 -174215.45613870 scfxm1-2b-64 1.4000 2877.56386371 scfxm1-2r-64 0.9500 2877.56386371 scfxm1-2r-96 1.1200 2891.70611371 scrs8-2r-512 0.1600 1074.09934157 scsd8-2b-64 0.2600 15.99866803 scsd8-2c-64 0.2800 14.99923200 scsd8-2r-108 0.1100 23.69999446 scsd8-2r-216 0.2300 23.39998388 sctap1-2b-64 0.2800 484.56000000 slptsk 0.8000 29.89536602 south31 36.1200 1818940197.10106000 stocfor3 0.7200 -39976.78394365 testbig 0.2400 -60.42296073 ulevimin 11.4800 -5191101861.43196900 wood1p 0.0600 1.44290241 world 2.6200 40364873.11413520 bas1lp 8.1100 363.00000000 cre-b 1.6800 23129639.88683240 cre-d 0.9400 24454969.76454920 fome13 0.6300 0.00000000 fome20 2.9600 23821658640.00000000 fome21 7.8200 47346318912.00000000 ken-18 5.0500 -5.2217025287397E+10 kl02 0.3000 215.25000000 nemsemm2 0.4900 581079.57090469 nsct1 0.4900 -38922436.00000000 nsct2 0.8700 -37175082.00000000 osa-14 0.4500 1106462.84473625 osa-30 1.0600 2142139.87320976 pds-20 2.9800 23821658640.00000000 pds-30 6.5800 21385445736.00000000 pds-40 11.1400 18855198824.00000000 pds-50 18.1700 16603525724.00000000 pds-60 26.6000 14265904407.00000000 rail507 5.3500 172.14556668 rail516 2.4300 182.00000000 rail582 3.3600 209.71223296 rat7a 6.6500 2074371.41572829 rlfddd 0.3600 -13.00000000 rlfdual 5.1500 -1.00000000 rlfprim 0.7800 1.00000000 route 0.3200 5941.65027667 scfxm1-2r-256 5.9200 2891.70611371 scsd8-2r-432 0.5400 25.79996956 sctap1-2r-480 0.8400 248.50000000 t0331-4l 11.7100 29730.03335194 us04 0.3200 17731.66666667 watson_1 15.4400 -1609.28079835 dbic1 63.0600 -9768973.00000000 dbir1 0.7800 -8106707.00000000 dbir2 1.2800 -6116916.50000000 nemsemm1 1.0200 512959.60078798 nw14 1.0000 61844.00000000 osa-60 2.6900 4044072.50315742 pds-100 53.8100 10928229968.00000000 pds-70 34.4900 12241162812.00000000 pds-80 44.2700 11469077462.00000000 pds-90 52.9900 11087561635.00000000 rail2586 974.3800 935.92182057 rail4284 2431.5700 1054.05449127 self 5.4800 0.00000000

 Modelname Time (CPLEX11) Status (CPLEX11) bgindy -- mstat( 4) sstat( 1) gosh -- mstat( 4) sstat( 1) lpl1 -- mstat( 4) sstat( 1) sgpf5y6 -- mstat( 4) sstat( 1)

 Modelname Time (CPLEX11) Status (CPLEX11) nug20 -- mstat( 6) sstat( 3) nug30 -- mstat( 6) 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)