Resource Times:

Date / Time: 10/19/08 15:15:39


See the solver return definitions for optimal/feasible model and solve statuses. Solutions are not checked for how close they are to eachother. Resource times are considered the same, if they are within 10% of eachother. A solver is considered faster than another, if it is less than 50% faster than the other. A solver is considered much faster than another, if it is more than 50% faster than the other.

If a model was not solved optimal/feasible by both solvers, the resource time is considered the same. If a model was solved optimal/feasible by solver A but not by solver B, then solver A is considered infinitely faster than solver B. Similarly, if one solver has trace data and the other has no data, then the first solver is consideredinfinitely faster.

A solver is considered to have a better objective function value, if the relative objective value difference is greater than 5.00E-03 For objective values below 1e-1 we use absolute differences.

Tracefile 1 :CONOPT-1.trc
Tracefile 2 :SNOPT-1.trc
Solvers used : CONOPT
SNOPT
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed


Total Obj CONOPT better Obj same Obj SNOPT better
Solver CONOPT infinitely faster : 2 2 - -
Solver CONOPT much faster : 43 - 42 1
Solver CONOPT faster : 15 1 14 -
Solvers perform the same : 1 - 1 -
Solver SNOPT faster : 9 - 9 -
Solver SNOPT much faster : 4 - 4 -
Solver SNOPT infinitely faster : 4 - - 4
Both solvers failed to solve optimally : 3 - 3 -
Total models: : 813735




Solver return definition:

OutcomeModel StatusSolver Status
globally optimal 1 or 15 1
locally optimal/feasible 2 or 7 or 16 or 17 1 or 2 or 3 or 4 or 5 or 8




Resource Times:

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Solver CONOPT infinitely faster - Obj of CONOPT better:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki0016843.3200fail -- 8.67973166E+02 NA
infeas10.3600infeasible -- 1.36855965E+04 -1.26241169E+04

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Solver CONOPT much faster - Obj same for both solvers:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki00117.8000622.20000.013 -2.24086460E+05 -2.24086459E+05
arki00121016.21003600.46000.282 -2.24252446E+05 -2.24120690E+05
arki00151.06004.48000.237 -2.71735724E+02 -2.72299778E+02
arki001799.64002696.22000.037 -1.21833080E+02 -1.21833080E+02
arki00181.540048.41000.032 1.04566244E-02 1.19800186E-02
arki00203.210032.51000.099 -4.10749544E+01 -4.10749544E+01
arki002314.200097.35000.146 -1.53660078E+02 -1.53417323E+02
catmix1000.08000.20000.400 -4.80693949E-02 -4.80693970E-02
catmix2000.09000.94000.096 -4.80591353E-02 -4.80591364E-02
catmix4000.23003.24000.071 -4.80565447E-02 -4.80565453E-02
catmix8000.730013.80000.053 -4.80558959E-02 -4.80559005E-02
chain4000.20009.10000.022 5.06862169E+00 5.06862169E+00
ex8_2_2a8.770069.58000.126 -5.52666259E+02 -5.52660705E+02
ex8_2_3a17.760063.41000.280 -3.73107930E+03 -3.73107718E+03
ex8_2_5a4.4100186.88000.024 -8.30338067E+02 -8.30337822E+02
ex8_2_5b3.21008.13000.395 -8.30338067E+02 -8.30079408E+02
flowchan1000.06000.43000.140 0.00000000E+00 0.00000000E+00
flowchan2000.13001.38000.094 0.00000000E+00 0.00000000E+00
flowchan4000.70004.62000.152 0.00000000E+00 0.00000000E+00
gasoil2000.50002.14000.234 5.23659587E-03 5.23659587E-03
gasoil4001.50008.35000.180 5.23659583E-03 5.23659583E-03
glider5012.2400102.53000.119 -1.28697737E+03 -1.28697737E+03
jbearing252.37009.39000.252 -1.54015540E-01 -1.54015540E-01
jbearing5014.010039.71000.353 -1.54824222E-01 -1.54824222E-01
lnts2000.74001.61000.460 5.54577016E-01 5.54577016E-01
lnts4001.91008.08000.236 5.54572414E-01 5.54572414E-01
methanol1000.32001.15000.278 9.02229107E-03 9.02229107E-03
methanol2000.66003.10000.213 9.02228980E-03 9.02228980E-03
methanol4001.480012.48000.119 9.02228986E-03 9.02228985E-03
methanol500.16001.30000.123 9.02228684E-03 9.02228683E-03
minsurf10078.2400400.91000.195 2.50694926E+00 2.50694926E+00
minsurf251.370012.46000.110 2.51948768E+00 2.51948768E+00
minsurf5012.020081.28000.148 2.51488916E+00 2.51488916E+00
minsurf7537.2700189.17000.197 2.50568648E+00 2.50568648E+00
pinene1000.44002.90000.152 1.98721701E+01 1.98721701E+01
pinene2001.44009.97000.144 1.98721668E+01 1.98721668E+01
pinene250.28000.74000.378 1.98721655E+01 1.98721655E+01
pinene500.27000.70000.386 1.98721655E+01 1.98721655E+01
polygon500.88001.86000.473 -7.82813451E-01 -7.84013049E-01
robot1000.28000.98000.286 9.14268538E+00 9.14268538E+00
robot2001.140010.17000.112 9.14139550E+00 9.14139550E+00
robot4002.830026.70000.106 9.14102603E+00 9.14102603E+00

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Solver CONOPT much faster - Obj of SNOPT better:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki00021.4000204.73000.007 1.09905910E+00 1.05777733E+00

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Solver CONOPT faster - Obj of CONOPT better:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
glider400528.6400640.73000.825 -1.24797432E+03 -2.56611246E+02

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Solver CONOPT faster - Obj same for both solvers:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki002181.880091.96000.890 -7.25821009E+01 -7.25821009E+01
arki002273.4400133.24000.551 -8.70990913E+01 -8.70990913E+01
camshape4000.08000.12000.667 -4.27568848E+00 -4.27568692E+00
camshape8000.32000.54000.593 -4.27427414E+00 -4.27427301E+00
ex8_2_2b7.79009.83000.792 -5.52666259E+02 -5.51769771E+02
ex8_2_3b16.080025.60000.628 -3.73107930E+03 -3.73072925E+03
gasoil1000.34000.64000.531 5.23659432E-03 5.23659432E-03
gasoil500.17000.26000.654 5.23664002E-03 5.23664002E-03
lnts1000.19000.34000.559 5.54595401E-01 5.54595401E-01
polygon1009.960013.65000.730 -7.84893292E-01 -7.85015522E-01
polygon754.57007.73000.591 -7.83678025E-01 -7.84788457E-01
rocket2004.19006.59000.636 -1.01283569E+00 -1.01283569E+00
torsion251.47002.18000.674 -4.17510730E-01 -4.17510730E-01
torsion5010.150016.47000.616 -4.18087632E-01 -4.18087632E-01

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Solvers perform the same - Obj same for both solvers:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
robot500.17000.16001.063 9.14687850E+00 9.14687850E+00

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Solver SNOPT faster - Obj same for both solvers:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki00041.38000.72001.917 3.23467039E+02 3.23467039E+02
elec20029.030015.24001.905 1.84389995E+04 1.84389927E+04
jbearing10076.100053.02001.435 -1.55041962E-01 -1.55041962E-01
jbearing7536.230028.05001.292 -1.54984535E-01 -1.54984535E-01
polygon250.31000.0400--- -7.79146001E-01 -7.79736699E-01
popdynm1005.01002.51001.996 1.97465286E+04 1.97465286E+04
popdynm20010.37007.50001.383 1.97465296E+04 1.97465296E+04
popdynm250.78000.39002.000 1.97522154E+04 1.97522154E+04
popdynm502.14001.25001.712 1.97465452E+04 1.97465452E+04

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Solver SNOPT much faster - Obj same for both solvers:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki000312.11001.31009.244 3.79520606E+03 3.79520607E+03
rocket1000.95000.46002.065 -1.01283202E+00 -1.01283202E+00
torsion10068.040024.45002.783 -4.18239213E-01 -4.18239213E-01
torsion7537.240014.60002.551 -4.18199401E-01 -4.18199401E-01

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Solver SNOPT infinitely faster - Obj of SNOPT better:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki0013fail 2230.8800 -- -2.01839185E+05 -2.24253089E+05
arki0014fail 3600.4500 -- -2.10613515E+05 -2.23911588E+05
glider100infeasible 1190.9000 -- 0.00000000E+00 -1.25505860E+03
rocket400fail 18.7300 -- -1.06915483E+00 -1.01283661E+00

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Both solvers failed to solve optimally - Obj same for both solvers:

Modelname Time (CONOPT) Time (SNOPT) Ratio (CONOPT / SNOPT) Obj (CONOPT) Obj (SNOPT)
arki0008infeasible infeasible -- 3.26663214E+05 3.26691419E+05
ex8_2_2unbounded fail -- -1.00000000E+10 -3.13379671E+04
glider200infeasible infeasible -- 0.00000000E+00 0.00000000E+00

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