## Solver Square Comparison: Considers all models.

Results created on 03/04/11 12:14:18 using the PAVER Server/Performance tools available at http://www.gamsworld.eu/performance/paver

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 KNITRO is represented on the left (rows) and solver SNOPT 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.

Input File Number Filename
Tracefile 1: KNITRO-1.trc
Tracefile 2: SNOPT-1.trc
Solvers used : KNITRO
SNOPT
Modeltype(s)   NLP

 SNOPT: optimal SNOPT: locally optimal SNOPT: feasible SNOPT: infeasible SNOPT: unbounded SNOPT: fail SNOPT: no data total KNITRO KNITRO: optimal - - - - - - - - KNITRO: locally optimal - 64 3 2 - 1 - 70 KNITRO: feasible - 2 - - - 1 - 3 KNITRO: infeasible - 2 - 1 - - - 3 KNITRO: unbounded - - - - - - - - KNITRO: fail - 2 2 - - 1 - 5 KNITRO: no data - - - - - - - - total SNOPT - 70 5 3 - 3 - 81

### 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.

### KNITRO: locally optimal -- SNOPT: locally optimal

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Obj (KNITRO) Obj (SNOPT)
arki0002 0.4550 155.9220 0.003 1.87252774 1.09249984
arki0004 0.2270 0.4440 0.511 323.46703884 323.46703883
arki0015 3.0810 3.7150 0.829 -263.62699897 -272.29977820
arki0020 0.1060 25.4230 0.004 -41.07495436 -41.07495436
arki0021 0.2890 75.6490 0.004 -72.58210091 -72.58210091
arki0022 0.4560 103.7290 0.004 -87.09909127 -87.09909127
camshape400 0.2280 0.0960 2.375 -4.27568844 -4.27568692
camshape800 0.5100 0.4180 1.220 -4.27427406 -4.27427301
catmix100 0.1000 0.1660 0.602 -0.04806942 -0.04806940
catmix200 0.1440 0.6780 0.212 -0.04805913 -0.04805914
catmix400 0.0940 2.5770 0.036 -0.04805653 -0.04805655
catmix800 0.2150 10.9170 0.020 -0.04805587 -0.04805590
chain400 0.9940 7.1580 0.139 5.06862169 5.06862169
elec200 10.4650 11.0000 0.951 18439.29863902 18438.99267601
ex8_2_2a 1.1780 118.9230 0.010 -552.66625615 -552.66024730
ex8_2_2b 1.4780 6.6280 0.223 -552.66625869 -551.76977066
ex8_2_3a 2.5510 64.3650 0.040 -3731.07929545 -3731.07808948
ex8_2_3b 2.9060 22.1670 0.131 -3731.07929545 -3730.72924771
ex8_2_5a 0.9030 183.9390 0.005 -830.33805402 -830.33802819
ex8_2_5b 1.2260 6.7640 0.181 -830.33806623 -830.07940808
flowchan100 0.0600 0.3330 0.180 0.00000000 0.00000000
flowchan200 0.1160 1.0650 0.109 0.00000000 0.00000000
flowchan400 0.2340 3.3790 0.069 0.00000000 0.00000000
gasoil100 0.0990 0.4980 0.199 0.00523659 0.00523659
gasoil200 0.1990 1.4750 0.135 0.00523660 0.00523660
gasoil400 0.4120 7.0000 0.059 0.00523660 0.00523660
gasoil50 0.0530 0.2010 0.264 0.00523664 0.00523664
glider100 20.4410 1618.6330 0.013 -1255.05860055 -1255.05860055
jbearing100 0.5000 40.0780 0.012 -0.15504173 -0.15504196
jbearing25 0.1200 7.0120 0.017 -0.15401538 -0.15401554
jbearing50 0.2430 30.7210 0.008 -0.15482405 -0.15482422
jbearing75 0.3710 24.6340 0.015 -0.15498434 -0.15498453
lnts100 0.0300 0.3100 0.097 0.55459540 0.55459540
lnts200 0.0530 1.4820 0.036 0.55457702 0.55457702
lnts400 0.1270 6.4850 0.020 0.55457241 0.55457241
methanol100 0.1840 0.8190 0.225 0.00902229 0.00902229
methanol200 0.4270 2.5090 0.170 0.00902229 0.00902229
methanol400 1.1180 8.4200 0.133 0.00902229 0.00902229
methanol50 0.0900 1.2120 0.074 0.00902229 0.00902229
minsurf100 0.8020 307.3960 0.003 2.50694937 2.50694926
minsurf25 0.1280 5.7500 0.022 2.51948776 2.51948768
minsurf50 1.0390 67.6010 0.015 2.51488927 2.51488916
minsurf75 1.5330 155.1750 0.010 2.50568659 2.50568648
pinene100 0.2260 2.3520 0.096 19.87217015 19.87217014
pinene200 0.5150 10.7530 0.048 19.87216684 19.87216684
pinene25 0.1220 1.1890 0.103 19.87216552 19.87216552
pinene50 0.1220 1.0510 0.116 19.87216552 19.87216552
polygon100 2.0450 21.3800 0.096 -0.76681127 -0.78503127
polygon25 0.0410 0.0360 --- -0.77866123 -0.77973670
polygon50 1.5110 1.6020 0.943 -0.75755497 -0.78401305
polygon75 3.8940 5.3170 0.732 -0.77435383 -0.78478846
popdynm100 0.2320 1.9540 0.119 19746.52860217 19746.52860217
popdynm200 0.5410 6.1400 0.088 19746.52964660 19746.52964660
popdynm25 0.0790 0.3130 0.252 19752.21541511 19752.21541511
popdynm50 0.1270 1.0690 0.119 19746.54515628 19746.54515628
robot400 1.4650 73.1190 0.020 9.14102651 9.14102603
robot50 0.1560 0.1410 1.106 9.14687852 9.14687850
rocket100 2.1160 0.7420 2.852 -1.01283201 -1.01283202
rocket200 0.9550 4.6100 0.207 -1.01283566 -1.01283569
rocket400 22.3050 40.4500 0.551 -1.01283656 -1.01283661
torsion100 1.1140 19.8940 0.056 -0.41823906 -0.41823921
torsion25 0.1490 1.5050 0.099 -0.41751069 -0.41751073
torsion50 0.3360 14.2930 0.024 -0.41808756 -0.41808763
torsion75 0.6900 12.4500 0.055 -0.41819929 -0.41819940

### KNITRO: locally optimal -- SNOPT: feasible

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Obj (KNITRO) Obj (SNOPT)
arki0017 0.4400 1715.7910 0.000 -121.83308004 -121.83308010
arki0018 0.8450 42.2100 0.020 0.01045662 0.01198069
arki0023 1.2170 82.4830 0.015 -153.66007775 -153.41732339

### KNITRO: locally optimal -- SNOPT: infeasible

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Obj (KNITRO) Status (SNOPT)
glider200 9.1170 1.8010 --- -249.99882310 mstat( 5)sstat( 1)
infeas1 0.2770 0.0160 --- 13685.59646064 mstat( 4)sstat( 1)

### KNITRO: locally optimal -- SNOPT: fail

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Obj (KNITRO) Status (SNOPT)
arki0016 3.7380 NA --- 867.97316601 mstat(13)sstat(13)

### KNITRO: feasible -- SNOPT: locally optimal

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Obj (KNITRO) Obj (SNOPT)
arki0011 3600.0630 417.8620 8.615 -224030.30400485 -224086.46000828
robot100 13.8240 0.8920 15.498 -2.0836462971935E+16 9.14268538

### KNITRO: feasible -- SNOPT: fail

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Obj (KNITRO) Status (SNOPT)
ex8_2_2 1375.4550 82.6420 --- -27671.65361246 mstat( 6)sstat( 4)

### KNITRO: infeasible -- SNOPT: locally optimal

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Status (KNITRO) Obj (SNOPT)
glider50 3332.9840 76.3770 --- mstat( 5)sstat( 1) -1286.97737315
robot200 43.4290 7.1720 --- mstat( 5)sstat( 1) 9.14139550

### KNITRO: infeasible -- SNOPT: infeasible

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Status (KNITRO) Status (SNOPT)
arki0008 128.8140 8.9820 --- mstat( 5)sstat( 1) mstat( 5)sstat( 1)

### KNITRO: fail -- SNOPT: locally optimal

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Status (KNITRO) Obj (SNOPT)
arki0012 3600.1350 3241.7210 --- mstat( 6)sstat( 3) -224252.44559875
arki0013 3600.0690 1487.5470 --- mstat( 6)sstat( 3) -224253.08921843

### KNITRO: fail -- SNOPT: feasible

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Status (KNITRO) Obj (SNOPT)
arki0014 3600.0960 3600.0370 --- mstat( 6)sstat( 3) -223972.99474775
glider400 3600.0230 3599.9900 --- mstat( 6)sstat( 3) -252.52559804

### KNITRO: fail -- SNOPT: fail

Modelname Time (KNITRO) Time (SNOPT) Ratio (KNITRO/SNOPT) Status (KNITRO) Status (SNOPT)
arki0003 3600.0300 1.1860 --- mstat( 6)sstat( 3) mstat( 6)sstat( 4)

### KNITRO: locally optimal:

Modelname Time (KNITRO) Obj (KNITRO)
arki0002 0.4550 1.87252774
arki0004 0.2270 323.46703884
arki0015 3.0810 -263.62699897
arki0016 3.7380 867.97316601
arki0017 0.4400 -121.83308004
arki0018 0.8450 0.01045662
arki0020 0.1060 -41.07495436
arki0021 0.2890 -72.58210091
arki0022 0.4560 -87.09909127
arki0023 1.2170 -153.66007775
camshape400 0.2280 -4.27568844
camshape800 0.5100 -4.27427406
catmix100 0.1000 -0.04806942
catmix200 0.1440 -0.04805913
catmix400 0.0940 -0.04805653
catmix800 0.2150 -0.04805587
chain400 0.9940 5.06862169
elec200 10.4650 18439.29863902
ex8_2_2a 1.1780 -552.66625615
ex8_2_2b 1.4780 -552.66625869
ex8_2_3a 2.5510 -3731.07929545
ex8_2_3b 2.9060 -3731.07929545
ex8_2_5a 0.9030 -830.33805402
ex8_2_5b 1.2260 -830.33806623
flowchan100 0.0600 0.00000000
flowchan200 0.1160 0.00000000
flowchan400 0.2340 0.00000000
gasoil100 0.0990 0.00523659
gasoil200 0.1990 0.00523660
gasoil400 0.4120 0.00523660
gasoil50 0.0530 0.00523664
glider100 20.4410 -1255.05860055
glider200 9.1170 -249.99882310
infeas1 0.2770 13685.59646064
jbearing100 0.5000 -0.15504173
jbearing25 0.1200 -0.15401538
jbearing50 0.2430 -0.15482405
jbearing75 0.3710 -0.15498434
lnts100 0.0300 0.55459540
lnts200 0.0530 0.55457702
lnts400 0.1270 0.55457241
methanol100 0.1840 0.00902229
methanol200 0.4270 0.00902229
methanol400 1.1180 0.00902229
methanol50 0.0900 0.00902229
minsurf100 0.8020 2.50694937
minsurf25 0.1280 2.51948776
minsurf50 1.0390 2.51488927
minsurf75 1.5330 2.50568659
pinene100 0.2260 19.87217015
pinene200 0.5150 19.87216684
pinene25 0.1220 19.87216552
pinene50 0.1220 19.87216552
polygon100 2.0450 -0.76681127
polygon25 0.0410 -0.77866123
polygon50 1.5110 -0.75755497
polygon75 3.8940 -0.77435383
popdynm100 0.2320 19746.52860217
popdynm200 0.5410 19746.52964660
popdynm25 0.0790 19752.21541511
popdynm50 0.1270 19746.54515628
robot400 1.4650 9.14102651
robot50 0.1560 9.14687852
rocket100 2.1160 -1.01283201
rocket200 0.9550 -1.01283566
rocket400 22.3050 -1.01283656
torsion100 1.1140 -0.41823906
torsion25 0.1490 -0.41751069
torsion50 0.3360 -0.41808756
torsion75 0.6900 -0.41819929

### KNITRO: feasible:

Modelname Time (KNITRO) Obj (KNITRO)
arki0011 3600.0630 -224030.30400485
ex8_2_2 1375.4550 -27671.65361246
robot100 13.8240 -2.0836462971935E+16

### KNITRO: infeasible:

Modelname Time (KNITRO) Status (KNITRO)
arki0008 -- mstat( 5) sstat( 1)
glider50 -- mstat( 5) sstat( 1)
robot200 -- mstat( 5) sstat( 1)

### KNITRO: fail:

Modelname Time (KNITRO) Status (KNITRO)
arki0003 -- mstat( 6) sstat( 3)
arki0012 -- mstat( 6) sstat( 3)
arki0013 -- mstat( 6) sstat( 3)
arki0014 -- mstat( 6) sstat( 3)
glider400 -- mstat( 6) sstat( 3)

### SNOPT: locally optimal:

Modelname Time (SNOPT) Obj (SNOPT)
arki0002 155.9220 1.09249984
arki0004 0.4440 323.46703883
arki0011 417.8620 -224086.46000828
arki0012 3241.7210 -224252.44559875
arki0013 1487.5470 -224253.08921843
arki0015 3.7150 -272.29977820
arki0020 25.4230 -41.07495436
arki0021 75.6490 -72.58210091
arki0022 103.7290 -87.09909127
camshape400 0.0960 -4.27568692
camshape800 0.4180 -4.27427301
catmix100 0.1660 -0.04806940
catmix200 0.6780 -0.04805914
catmix400 2.5770 -0.04805655
catmix800 10.9170 -0.04805590
chain400 7.1580 5.06862169
elec200 11.0000 18438.99267601
ex8_2_2a 118.9230 -552.66024730
ex8_2_2b 6.6280 -551.76977066
ex8_2_3a 64.3650 -3731.07808948
ex8_2_3b 22.1670 -3730.72924771
ex8_2_5a 183.9390 -830.33802819
ex8_2_5b 6.7640 -830.07940808
flowchan100 0.3330 0.00000000
flowchan200 1.0650 0.00000000
flowchan400 3.3790 0.00000000
gasoil100 0.4980 0.00523659
gasoil200 1.4750 0.00523660
gasoil400 7.0000 0.00523660
gasoil50 0.2010 0.00523664
glider100 1618.6330 -1255.05860055
glider50 76.3770 -1286.97737315
jbearing100 40.0780 -0.15504196
jbearing25 7.0120 -0.15401554
jbearing50 30.7210 -0.15482422
jbearing75 24.6340 -0.15498453
lnts100 0.3100 0.55459540
lnts200 1.4820 0.55457702
lnts400 6.4850 0.55457241
methanol100 0.8190 0.00902229
methanol200 2.5090 0.00902229
methanol400 8.4200 0.00902229
methanol50 1.2120 0.00902229
minsurf100 307.3960 2.50694926
minsurf25 5.7500 2.51948768
minsurf50 67.6010 2.51488916
minsurf75 155.1750 2.50568648
pinene100 2.3520 19.87217014
pinene200 10.7530 19.87216684
pinene25 1.1890 19.87216552
pinene50 1.0510 19.87216552
polygon100 21.3800 -0.78503127
polygon25 0.0360 -0.77973670
polygon50 1.6020 -0.78401305
polygon75 5.3170 -0.78478846
popdynm100 1.9540 19746.52860217
popdynm200 6.1400 19746.52964660
popdynm25 0.3130 19752.21541511
popdynm50 1.0690 19746.54515628
robot100 0.8920 9.14268538
robot200 7.1720 9.14139550
robot400 73.1190 9.14102603
robot50 0.1410 9.14687850
rocket100 0.7420 -1.01283202
rocket200 4.6100 -1.01283569
rocket400 40.4500 -1.01283661
torsion100 19.8940 -0.41823921
torsion25 1.5050 -0.41751073
torsion50 14.2930 -0.41808763
torsion75 12.4500 -0.41819940

### SNOPT: feasible:

Modelname Time (SNOPT) Obj (SNOPT)
arki0014 3600.0370 -223972.99474775
arki0017 1715.7910 -121.83308010
arki0018 42.2100 0.01198069
arki0023 82.4830 -153.41732339
glider400 3599.9900 -252.52559804

### SNOPT: infeasible:

Modelname Time (SNOPT) Status (SNOPT)
arki0008 -- mstat( 5)sstat( 1)
glider200 -- mstat( 5)sstat( 1)
infeas1 -- mstat( 4)sstat( 1)

### SNOPT: fail:

Modelname Time (SNOPT) Status (SNOPT)
arki0003 -- mstat( 6)sstat( 4)
arki0016 -- mstat(13)sstat(13)
ex8_2_2 -- mstat( 6)sstat( 4)