Resource Times:

Date / Time: 09/21/08 19:53:35


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 1.00E-05 For objective values below 1e-1 we use absolute differences.

Tracefile 1 :IPOPT-1.trc
Tracefile 2 :IPOPT-2.trc
Solvers used : IPOPTMA27
IPOPTMUMPS
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed


Total Obj IPOPTMA27 better Obj same Obj IPOPTMUMPS better
Solver IPOPTMA27 infinitely faster : 1 1 - -
Solver IPOPTMA27 much faster : 35 - 35 -
Solver IPOPTMA27 faster : 25 - 25 -
Solvers perform the same : 8 1 7 -
Solver IPOPTMUMPS faster : 2 - 2 -
Solver IPOPTMUMPS much faster : 4 - 4 -
Solver IPOPTMUMPS infinitely faster : 2 - - 2
Both solvers failed to solve optimally : 4 - 4 -
Total models: : 812772




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




Resource Times:

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Solver IPOPTMA27 infinitely faster - Obj of IPOPTMA27 better:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
glider200193.3500infeasible -- -2.50000000E+02 0.00000000E+00

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Solver IPOPTMA27 much faster - Obj same for both solvers:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
arki00020.11000.50000.220 1.87252774E+00 1.87252774E+00
arki000320.1200110.05000.183 3.79520607E+03 3.79520607E+03
arki00153.91009.04000.433 -2.66940688E+02 -2.66940688E+02
arki00161.40004.45000.315 8.67973166E+02 8.67973166E+02
arki00171.03003.51000.293 -1.21833080E+02 -1.21833080E+02
arki00180.60001.22000.492 1.04566244E-02 1.04566244E-02
camshape4000.24000.92000.261 -4.27568847E+00 -4.27568847E+00
camshape8000.69001.67000.413 -4.27427413E+00 -4.27427413E+00
catmix1000.06000.16000.375 -4.80694133E-02 -4.80694133E-02
catmix2000.08000.18000.444 -4.80591358E-02 -4.80591358E-02
catmix4000.13000.49000.265 -4.80565435E-02 -4.80565435E-02
catmix8000.37000.80000.462 -4.80558974E-02 -4.80558974E-02
ex8_2_2a3.77008.38000.450 -5.52666259E+02 -5.52666259E+02
ex8_2_2b4.530012.95000.350 -5.52666260E+02 -5.52666260E+02
ex8_2_5a3.75007.82000.480 -8.30338067E+02 -8.30338067E+02
flowchan1000.08000.26000.308 0.00000000E+00 0.00000000E+00
flowchan2000.13000.42000.310 0.00000000E+00 0.00000000E+00
flowchan4000.26000.72000.361 0.00000000E+00 0.00000000E+00
gasoil1000.23001.01000.228 5.23659432E-03 5.23659432E-03
gasoil2000.52001.16000.448 5.23659587E-03 5.23659587E-03
gasoil500.10000.39000.256 5.23664002E-03 5.23664002E-03
lnts2000.07000.27000.259 5.54577016E-01 5.54577016E-01
lnts4000.13000.45000.289 5.54572414E-01 5.54572414E-01
methanol1000.43001.20000.358 9.02229108E-03 9.02229108E-03
methanol500.13000.29000.448 9.02228685E-03 9.02228685E-03
pinene1000.25001.03000.243 1.98721701E+01 1.98721701E+01
pinene2000.71002.09000.340 1.98721668E+01 1.98721668E+01
pinene250.12000.58000.207 1.98721655E+01 1.98721655E+01
pinene500.18000.38000.474 1.98721655E+01 1.98721655E+01
polygon250.06000.14000.429 -7.79740541E-01 -7.79740541E-01
popdynm2001.28003.63000.353 1.97465296E+04 1.97465296E+04
popdynm250.19000.49000.388 1.97522154E+04 1.97522154E+04
popdynm500.21000.76000.276 1.97465452E+04 1.97465452E+04
robot2000.50001.16000.431 9.14139687E+00 9.14139688E+00
robot4001.24003.01000.412 9.14102607E+00 9.14102607E+00

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Solver IPOPTMA27 faster - Obj same for both solvers:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
arki001180.1400105.39000.760 -2.24086460E+05 -2.24086460E+05
arki0012144.1600172.91000.834 -2.24252427E+05 -2.24252442E+05
arki001398.6000148.00000.666 -2.24253086E+05 -2.24253088E+05
arki001489.0400109.55000.813 -2.23977085E+05 -2.23976861E+05
arki00200.27000.51000.529 -4.10749544E+01 -4.10749544E+01
arki00211.73002.11000.820 -7.25821009E+01 -7.25821009E+01
arki00223.18005.26000.605 -8.70990913E+01 -8.70990913E+01
arki002312.240013.61000.899 -1.53660078E+02 -1.53660078E+02
chain4000.04000.1500--- 5.06862169E+00 5.06862169E+00
ex8_2_3a9.970017.81000.560 -3.73107930E+03 -3.73107930E+03
ex8_2_3b13.340020.03000.666 -3.73107930E+03 -3.73107930E+03
ex8_2_5b11.310015.41000.734 -8.30338067E+02 -8.30338067E+02
gasoil4002.23002.73000.817 5.23659583E-03 5.23659583E-03
infeas10.60001.10000.545 1.36855965E+04 1.36855965E+04
jbearing250.71001.13000.628 -1.54015506E-01 -1.54015506E-01
jbearing502.10002.38000.882 -1.54823813E-01 -1.54823813E-01
lnts1000.04000.1900--- 5.54595401E-01 5.54595401E-01
methanol2004.50007.59000.593 9.02228981E-03 9.02228981E-03
methanol4006.480010.30000.629 9.02228986E-03 9.02228993E-03
minsurf250.79001.24000.637 2.51948798E+00 2.51948798E+00
polygon1005.41007.77000.696 -7.85056137E-01 -7.85056137E-01
polygon501.48002.11000.701 -7.82132559E-01 -7.82132559E-01
polygon754.89007.33000.667 -7.84463757E-01 -7.84463757E-01
popdynm1000.51000.91000.560 1.97465286E+04 1.97465286E+04
torsion505.55006.94000.800 -4.18087625E-01 -4.18087625E-01

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Solvers perform the same - Obj of IPOPTMA27 better:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
arki00045.46005.83000.937 3.23467039E+02 3.27733013E+02

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Solvers perform the same - Obj same for both solvers:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
elec2001520.09001473.19001.032 1.84392677E+04 1.84392677E+04
jbearing755.45005.54000.984 -1.54984461E-01 -1.54984461E-01
minsurf10011.080011.54000.960 2.50694962E+00 2.50694962E+00
minsurf503.35003.41000.982 2.51489003E+00 2.51489003E+00
minsurf7517.590019.06000.923 2.50568696E+00 2.50568704E+00
torsion10016.980017.39000.976 -4.18239198E-01 -4.18239198E-01
torsion251.10001.22000.902 -4.17510726E-01 -4.17510726E-01

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Solver IPOPTMUMPS faster - Obj same for both solvers:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
jbearing10010.46009.19001.138 -1.55041943E-01 -1.55041943E-01
torsion7513.490010.18001.325 -4.18199389E-01 -4.18199389E-01

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Solver IPOPTMUMPS much faster - Obj same for both solvers:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
glider4003424.570043.490078.744 -2.50000000E+02 -2.50000000E+02
rocket1003.74000.70005.343 -1.01283200E+00 -1.01283201E+00
rocket20022.44002.41009.311 -1.01283568E+00 -1.01283568E+00
rocket400161.49003.080052.432 -1.01283661E+00 -1.01283661E+00

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Solver IPOPTMUMPS infinitely faster - Obj of IPOPTMUMPS better:

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
glider100infeasible 8.7200 -- -6.54011151E+01 -2.50000000E+02
robot100unbounded 3600.0400 -- -7.40029416E+22 -2.27094614E+16

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

Modelname Time (IPOPTMA27) Time (IPOPTMUMPS) Ratio (IPOPTMA27 / IPOPTMUMPS) Obj (IPOPTMA27) Obj (IPOPTMUMPS)
arki0008fail fail -- NA 0.00000000E+00
ex8_2_2fail fail -- -1.47816968E+03 -1.48433782E+03
glider50infeasible infeasible -- 0.00000000E+00 0.00000000E+00
robot50unbounded fail -- -2.50065393E+23 -3.35784684E+16

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