## 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 CLP 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 : 2-CBC-0.trc Tracefile 2 : 4-IPOPT-1.trc Solvers used : CLP IPOPT Modeltype(s) LP

 IPOPT: optimal IPOPT: locally optimal IPOPT: feasible IPOPT: infeasible IPOPT: unbounded IPOPT: fail IPOPT: no data total CLP CLP: optimal 91 - 3 - - 15 - 109 CLP: locally optimal - - - - - - - - CLP: feasible - - - - - - - - CLP: infeasible - - - - - 4 - 4 CLP: unbounded - - - - - - - - CLP: fail 2 - - - - 3 - 5 CLP: 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 (CLP) Time (IPOPT) Ratio (CLP/IPOPT) Obj (CLP) Obj (IPOPT) aa01 1.9600 4.6500 0.422 55535.43638822 55535.43638838 aa03 1.1000 3.2600 0.337 49616.36363636 49616.36363651 air02 0.0600 1.5900 0.038 7640.00000000 7640.00000112 air06 1.1100 3.2600 0.340 49616.36363636 49616.36363651 baxter 1.0300 40.1900 0.026 56007255.67225311 56007255.68220491 car4 1.5900 1.2300 1.293 35.46037017 35.46038611 cari 0.3400 6.2300 0.055 581.89305779 581.89305779 co5 2.9400 5.3200 0.553 714469.55375105 714469.58102212 co9 13.9500 23.0600 0.605 946920.43028456 946920.49646302 cq5 1.3300 4.1800 0.318 400133.80747262 400133.80948837 cq9 6.5100 19.8700 0.328 505541.70980727 505541.70995496 crew1 0.1600 0.6400 0.250 20.55555556 20.55555577 ex3sta1 123.2200 40.6800 3.029 -63.07540325 -63.07540325 fit2d 3.5100 4.9100 0.715 -68464.29329383 -68464.29322924 fit2p 4.0700 0.9900 4.111 68464.29329383 68464.29329384 fome11 0.2400 171.3600 0.001 0.00000000 0.00257121 fome12 0.4800 347.7300 0.001 0.00000000 0.00514243 gen1 1.2100 4.6100 0.262 0.00000122 0.00000165 gen2 46.6100 7.0000 6.659 3.29279078 3.29279078 gen4 62.6100 12.9200 4.846 0.00000285 0.00000934 jendrec1 2.6900 3.2600 0.825 7028.46051135 7028.46051883 ken-11 0.4700 3.2900 0.143 -6972382262.51996900 -6972382262.51996900 ken-13 1.3000 6.9600 0.187 -1.0257394789482E+10 -1.0257394789482E+10 l30 17.8900 1.3300 13.451 0.95266142 0.94206073 lp22 34.1800 102.8600 0.332 458.94459411 458.94465074 maros-r7 2.9100 10.2600 0.284 1497185.16647964 1497185.16647965 mod2 5.6000 1184.6600 0.005 27737371.36444000 27737371.36747100 model10 27.4100 209.0000 0.131 -154599.62130064 -154599.62123990 model11 2.6500 2.0200 1.312 0.00000000 0.00016867 model5 3.9200 7.4900 0.523 -858440.72907343 -858440.71278465 model7 2.7100 32.9100 0.082 49380.08549287 49380.08553648 model9 1.6300 61.8900 0.026 -141123.09361336 -141123.09326554 nemspmm1 3.3600 2.0400 1.647 -327415.83567076 -327415.83567076 nemspmm2 3.4000 3.3600 1.012 -291794.83608908 -291794.82815276 nemswrld 50.8000 36.7600 1.382 260.30896600 260.30906290 nsir1 0.3200 24.2000 0.013 -28909033.00000000 -28909033.00000000 nsir2 0.5000 7.9200 0.063 -27175593.50000000 -27175593.49999990 osa-07 0.2600 18.6300 0.014 535722.51729935 535722.51730081 p010 0.9200 3.6500 0.252 1115047.91511082 1115047.91511083 p05 0.3400 1.5500 0.219 556000.27662588 556000.27662600 pcb3000 0.7500 1.7100 0.439 137416.41961282 137416.43123403 pilot87 12.5300 13.8700 0.903 301.71036566 301.71579925 r05 0.3800 7.6200 0.050 557831.85904066 557831.85904067 rat1 0.4100 14.9400 0.027 1999531.66287928 1999531.66288583 rat5 1.5200 13.4200 0.113 3083707.01043841 3083707.01043842 rosen10 0.1300 0.7800 0.167 -174215.45613870 -174215.45613870 scfxm1-2b-64 3.7000 4.1100 0.900 2877.56386371 2877.56386373 scfxm1-2r-64 1.1200 1.6200 0.691 2877.56386371 2877.56386371 scfxm1-2r-96 2.2800 8.0300 0.284 2891.70611371 2891.70611372 scrs8-2r-512 0.2100 126.9600 0.002 1074.09934157 1074.09934213 scsd8-2b-64 0.3700 0.9900 0.374 15.99866803 15.99866807 scsd8-2c-64 0.4000 1.0100 0.396 14.99923200 14.99923204 scsd8-2r-108 0.1200 0.5600 0.214 23.69999434 23.69999436 scsd8-2r-216 0.3000 1.2600 0.238 23.39998388 23.39998406 sctap1-2b-64 0.8800 2.0700 0.425 484.56000000 484.56000001 slptsk 2.0800 11.1600 0.186 29.89536602 29.89536602 south31 30.4900 3.2900 9.267 1818940197.10106000 1818940197.10107000 stocfor3 1.1100 2.2800 0.487 -39976.78394365 -39976.78394143 testbig 1.0100 1.1800 0.856 -60.42296073 -60.42296063 ulevimin 33.3700 68.9700 0.484 -5191101861.43196900 -5191101860.83442000 wood1p 0.1200 2.0400 0.059 1.44290241 1.44290249 world 6.3600 317.4900 0.020 40364873.11417430 40364873.11446890 bas1lp 2.0700 39.3100 0.053 363.00000000 363.00000000 cre-d 1.9600 2394.9500 0.001 24454969.76454920 24454969.76555750 fome13 1.0100 738.4000 0.001 0.00000000 0.01028485 fome20 4.3100 3468.3500 0.001 23821658640.00000000 23821658640.00010000 ken-18 8.4400 307.2900 0.027 -5.2217025287397E+10 -5.2217025287397E+10 kl02 0.5500 11.0100 0.050 215.25000000 215.25000010 nemsemm2 0.8700 5.8600 0.148 581079.57090469 581079.64415548 nsct2 2.0400 749.4100 0.003 -37175082.00000000 -37175081.99630621 osa-14 0.8200 87.0800 0.009 1106462.84473625 1106462.84474349 osa-30 1.6500 321.4500 0.005 2142139.87320976 2142139.87321565 pds-20 4.2100 3497.0400 0.001 23821658640.00000000 23821658640.00010000 rail507 11.0000 23.1700 0.475 172.14556668 172.14556691 rail516 3.6300 19.7300 0.184 182.00000000 182.00000071 rail582 7.8600 31.6400 0.248 209.71223296 209.71223301 rat7a 20.9300 38.3500 0.546 2074371.41572828 2074371.41572829 rlfddd 0.3200 12.3000 0.026 -13.00000000 -12.99999991 rlfdual 60.2200 56.7000 1.062 -1.00000000 -0.99999994 rlfprim 1.1900 81.7800 0.015 1.00000000 1.00000069 route 0.4000 9.6200 0.042 5941.65027667 5941.65027701 scfxm1-2r-256 16.2800 11.1500 1.460 2891.70611371 2891.70611386 scsd8-2r-432 0.8500 2.9500 0.288 25.79996945 25.79997250 sctap1-2r-480 2.0500 4.8200 0.425 248.50000000 248.50000001 t0331-4l 18.0500 23.0100 0.784 29730.03335194 29730.03335310 us04 6.4800 17.6800 0.367 17731.66666667 17731.66667227 dbic1 306.5800 1592.5100 0.193 -9768973.00000000 -9768973.00014886 dbir2 3.0800 229.4000 0.013 -6116916.50000000 -6116916.49999326 nemsemm1 2.8700 44.4600 0.065 512959.60078798 512959.68358962 nw14 2.7800 351.4600 0.008 61844.00000000 61844.00003897 osa-60 5.9400 2070.4700 0.003 4044072.50315751 4044072.50389521

 Modelname Time (CLP) Time (IPOPT) Ratio (CLP/IPOPT) Obj (CLP) Obj (IPOPT) lpl3 0.8100 3706.6500 0.000 27318.00000000 34530.67856900 cre-b 3.1700 3644.3600 0.001 23129639.88683240 23129639.88704360 rail2586 2059.1800 3607.5800 0.571 935.92182057 6557.33662890

 Modelname Time (CLP) Time (IPOPT) Ratio (CLP/IPOPT) Obj (CLP) Status (IPOPT) pds-06 0.4400 3600.2400 --- 27761037600.00000000 mstat( 6) sstat( 3) pds-10 1.0000 3600.0600 --- 26727094976.00000000 mstat( 6) sstat( 3) fome21 9.1500 3609.3300 --- 47346318912.00000000 mstat( 6) sstat( 3) nsct1 1.2100 3606.6400 --- -38922436.00000000 mstat( 6) sstat( 3) pds-30 10.0100 3630.3700 --- 21385445736.00000000 mstat( 6) sstat( 3) pds-40 18.3800 4024.9000 --- 18855198824.00000000 mstat( 6) sstat( 3) pds-50 26.3100 NA --- 16603525724.00000000 mstat(13) sstat(10) pds-60 39.7900 NA --- 14265904407.00000000 mstat(13) sstat(13) watson_1 104.6500 NA --- -1609.28071548 mstat(13) sstat(10) dbir1 3.9100 3614.7600 --- -8106707.00000000 mstat( 6) sstat( 3) pds-100 90.0600 35438.4600 --- 10928229968.00000000 mstat( 6) sstat( 3) pds-70 53.7600 NA --- 12241162812.00000000 mstat(13) sstat(10) pds-80 71.0200 NA --- 11469077462.00000000 mstat(13) sstat(13) pds-90 76.1900 NA --- 11087561635.00000000 mstat(13) sstat(13) self 6.5600 NA --- 0.00000000 mstat(13) sstat(10)

 Modelname Time (CLP) Time (IPOPT) Ratio (CLP/IPOPT) Status (CLP) Status (IPOPT) bgindy 0.0500 3603.5700 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) gosh 0.8800 3600.2300 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) lpl1 0.5200 3606.3000 --- mstat(19) sstat( 1) mstat( 6) sstat( 3) sgpf5y6 14.7300 NA --- mstat(19) sstat( 1) mstat(13) sstat(10)

 Modelname Time (CLP) Time (IPOPT) Ratio (CLP/IPOPT) Status (CLP) Obj (IPOPT) nug15 3600.3300 2944.4900 --- mstat(14) sstat( 3) 1040.99405336 qap15 3600.4300 2537.0500 --- mstat(14) sstat( 3) 1040.99405335

 Modelname Time (CLP) Time (IPOPT) Ratio (CLP/IPOPT) Status (CLP) Status (IPOPT) nug20 3600.1600 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) nug30 3606.7000 NA --- mstat(14) sstat( 3) mstat(13) sstat(10) rail4284 3602.7800 NA --- mstat(14) sstat( 3) mstat(13) sstat(10)

 Modelname Time (CLP) Obj (CLP) aa01 1.9600 55535.43638822 aa03 1.1000 49616.36363636 air02 0.0600 7640.00000000 air06 1.1100 49616.36363636 baxter 1.0300 56007255.67225311 car4 1.5900 35.46037017 cari 0.3400 581.89305779 co5 2.9400 714469.55375105 co9 13.9500 946920.43028456 cq5 1.3300 400133.80747262 cq9 6.5100 505541.70980727 crew1 0.1600 20.55555556 ex3sta1 123.2200 -63.07540325 fit2d 3.5100 -68464.29329383 fit2p 4.0700 68464.29329383 fome11 0.2400 0.00000000 fome12 0.4800 0.00000000 gen1 1.2100 0.00000122 gen2 46.6100 3.29279078 gen4 62.6100 0.00000285 jendrec1 2.6900 7028.46051135 ken-11 0.4700 -6972382262.51996900 ken-13 1.3000 -1.0257394789482E+10 l30 17.8900 0.95266142 lp22 34.1800 458.94459411 lpl3 0.8100 27318.00000000 maros-r7 2.9100 1497185.16647964 mod2 5.6000 27737371.36444000 model10 27.4100 -154599.62130064 model11 2.6500 0.00000000 model5 3.9200 -858440.72907343 model7 2.7100 49380.08549287 model9 1.6300 -141123.09361336 nemspmm1 3.3600 -327415.83567076 nemspmm2 3.4000 -291794.83608908 nemswrld 50.8000 260.30896600 nsir1 0.3200 -28909033.00000000 nsir2 0.5000 -27175593.50000000 osa-07 0.2600 535722.51729935 p010 0.9200 1115047.91511082 p05 0.3400 556000.27662588 pcb3000 0.7500 137416.41961282 pds-06 0.4400 27761037600.00000000 pds-10 1.0000 26727094976.00000000 pilot87 12.5300 301.71036566 r05 0.3800 557831.85904066 rat1 0.4100 1999531.66287928 rat5 1.5200 3083707.01043841 rosen10 0.1300 -174215.45613870 scfxm1-2b-64 3.7000 2877.56386371 scfxm1-2r-64 1.1200 2877.56386371 scfxm1-2r-96 2.2800 2891.70611371 scrs8-2r-512 0.2100 1074.09934157 scsd8-2b-64 0.3700 15.99866803 scsd8-2c-64 0.4000 14.99923200 scsd8-2r-108 0.1200 23.69999434 scsd8-2r-216 0.3000 23.39998388 sctap1-2b-64 0.8800 484.56000000 slptsk 2.0800 29.89536602 south31 30.4900 1818940197.10106000 stocfor3 1.1100 -39976.78394365 testbig 1.0100 -60.42296073 ulevimin 33.3700 -5191101861.43196900 wood1p 0.1200 1.44290241 world 6.3600 40364873.11417430 bas1lp 2.0700 363.00000000 cre-b 3.1700 23129639.88683240 cre-d 1.9600 24454969.76454920 fome13 1.0100 0.00000000 fome20 4.3100 23821658640.00000000 fome21 9.1500 47346318912.00000000 ken-18 8.4400 -5.2217025287397E+10 kl02 0.5500 215.25000000 nemsemm2 0.8700 581079.57090469 nsct1 1.2100 -38922436.00000000 nsct2 2.0400 -37175082.00000000 osa-14 0.8200 1106462.84473625 osa-30 1.6500 2142139.87320976 pds-20 4.2100 23821658640.00000000 pds-30 10.0100 21385445736.00000000 pds-40 18.3800 18855198824.00000000 pds-50 26.3100 16603525724.00000000 pds-60 39.7900 14265904407.00000000 rail507 11.0000 172.14556668 rail516 3.6300 182.00000000 rail582 7.8600 209.71223296 rat7a 20.9300 2074371.41572828 rlfddd 0.3200 -13.00000000 rlfdual 60.2200 -1.00000000 rlfprim 1.1900 1.00000000 route 0.4000 5941.65027667 scfxm1-2r-256 16.2800 2891.70611371 scsd8-2r-432 0.8500 25.79996945 sctap1-2r-480 2.0500 248.50000000 t0331-4l 18.0500 29730.03335194 us04 6.4800 17731.66666667 watson_1 104.6500 -1609.28071548 dbic1 306.5800 -9768973.00000000 dbir1 3.9100 -8106707.00000000 dbir2 3.0800 -6116916.50000000 nemsemm1 2.8700 512959.60078798 nw14 2.7800 61844.00000000 osa-60 5.9400 4044072.50315751 pds-100 90.0600 10928229968.00000000 pds-70 53.7600 12241162812.00000000 pds-80 71.0200 11469077462.00000000 pds-90 76.1900 11087561635.00000000 rail2586 2059.1800 935.92182057 self 6.5600 0.00000000

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

 Modelname Time (CLP) Status (CLP) nug15 -- mstat(14) sstat( 3) qap15 -- mstat(14) sstat( 3) nug20 -- mstat(14) sstat( 3) nug30 -- mstat(14) sstat( 3) rail4284 -- mstat(14) sstat( 3)

 Modelname Time (IPOPT) Obj (IPOPT) aa01 4.6500 55535.43638838 aa03 3.2600 49616.36363651 air02 1.5900 7640.00000112 air06 3.2600 49616.36363651 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 l30 1.3300 0.94206073 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 scfxm1-2b-64 4.1100 2877.56386373 scfxm1-2r-64 1.6200 2877.56386371 scfxm1-2r-96 8.0300 2891.70611372 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 ulevimin 68.9700 -5191101860.83442000 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

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