Resource Times:

Results created on 11/09/09 18:57:38 using the PAVER Server/Performance tools available at

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.

Input File Number Filename
Tracefile 1: COINIPOPTD-2.trc
Tracefile 2: IPOPT-2.trc
Solvers used : COINIPOPTDmumps
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed

Total Obj COINIPOPTDmumps better Obj same Obj IPOPTmumps better
Solver COINIPOPTDmumps infinitely faster : 2 2 - -
Solver COINIPOPTDmumps much faster : 16 - 16 -
Solver COINIPOPTDmumps faster : 7 - 7 -
Solvers perform the same : 35 - 35 -
Solver IPOPTmumps faster : 13 - 13 -
Solver IPOPTmumps much faster : 1 - 1 -
Solver IPOPTmumps infinitely faster :- - - -
Both solvers failed to solve optimally : 7 - 7 -
Total models: : 812790

Solver return definition:

Outcome Model Status Solver 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:

Solver COINIPOPTDmumps infinitely faster - Obj of COINIPOPTDmumps better:

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
glider2001821.6560infeasible -- -1.24889636E+03 -5.89894471E+01
robot5041.6870unbounded -- -1.55760109E+16 -5.03900774E+21

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Solver COINIPOPTDmumps much faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
arki00210.44401.37000.324 -7.25821009E+01 -7.25821009E+01
arki00220.68902.49000.277 -8.70990913E+01 -8.70990913E+01
arki00231.40309.06000.155 -1.53660078E+02 -1.53660078E+02
elec20051.87201213.61000.043 1.84392677E+04 1.84392677E+04
jbearing1000.66507.21000.092 -1.55041943E-01 -1.55041943E-01
jbearing250.15700.58000.271 -1.54015507E-01 -1.54015507E-01
jbearing500.31401.77000.177 -1.54823813E-01 -1.54823813E-01
jbearing750.46403.98000.117 -1.54984461E-01 -1.54984461E-01
minsurf1000.68109.17000.074 2.50694962E+00 2.50694962E+00
minsurf250.15000.65000.231 2.51948798E+00 2.51948798E+00
minsurf500.31402.29000.137 2.51489003E+00 2.51489003E+00
minsurf752.108014.74000.143 2.50568721E+00 2.50568709E+00
torsion1000.727013.69000.053 -4.18239199E-01 -4.18239199E-01
torsion250.16200.86000.188 -4.17510726E-01 -4.17510726E-01
torsion500.35603.68000.097 -4.18087625E-01 -4.18087625E-01
torsion750.53507.96000.067 -4.18199390E-01 -4.18199390E-01

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Solver COINIPOPTDmumps faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
arki00043.58004.92000.728 3.27733013E+02 3.27733013E+02
arki001191.9100115.07000.799 -2.24086460E+05 -2.24086460E+05
arki001289.9340152.71000.589 -2.24252273E+05 -2.24252443E+05
arki00200.14100.26000.542 -4.10749544E+01 -4.10749544E+01
chain4000.06000.07000.857 5.06862169E+00 5.06862169E+00
methanol2005.27007.55000.698 9.02228981E-03 9.02228981E-03
popdynm250.28500.32000.891 1.97522154E+04 1.97522154E+04

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Solvers perform the same - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
arki0014135.2720122.79001.102 -2.23977069E+05 -2.23977074E+05
arki00155.79905.47001.060 -2.66940688E+02 -2.66940688E+02
arki001615.885015.75001.009 8.67973166E+02 8.67973166E+02
arki00171.41401.43000.989 -1.21833080E+02 -1.21833080E+02
camshape4001.29201.32000.979 -4.27569663E+00 -4.27569663E+00
camshape800150.9280167.68000.900 -4.27430687E+00 -4.27430687E+00
catmix2000.08400.09000.933 -4.80591358E-02 -4.80591358E-02
catmix4000.15400.14001.100 -4.80565435E-02 -4.80565435E-02
catmix8000.26600.28000.950 -4.80558974E-02 -4.80558974E-02
ex8_2_3b13.810012.46001.108 -3.73107930E+03 -3.73107930E+03
ex8_2_5a3.52503.48001.013 -8.30338068E+02 -8.30338068E+02
ex8_2_5b10.136010.79000.939 -8.30338068E+02 -8.30338068E+02
flowchan1000.10600.10001.060 0.00000000E+00 0.00000000E+00
gasoil4001.77101.61001.100 5.23659583E-03 5.23659583E-03
infeas10.76900.70001.099 1.36855965E+04 1.36855965E+04
lnts2000.13800.13001.062 5.54577016E-01 5.54577016E-01
lnts4000.28200.26001.085 5.54572414E-01 5.54572414E-01
methanol1000.50900.50001.018 9.02229108E-03 9.02229108E-03
methanol4006.71006.97000.963 9.02228986E-03 9.02228986E-03
methanol500.17300.16001.081 9.02228685E-03 9.02228685E-03
pinene1000.48000.44001.091 1.98721701E+01 1.98721701E+01
pinene2001.00700.91001.107 1.98721668E+01 1.98721668E+01
pinene250.26100.24001.088 1.98721655E+01 1.98721655E+01
pinene500.26400.26001.015 1.98721655E+01 1.98721655E+01
polygon1004.75105.07000.937 -7.85056137E-01 -7.85056137E-01
polygon250.11100.10001.110 -7.79740541E-01 -7.79740541E-01
polygon501.63301.55001.054 -7.82132559E-01 -7.82132559E-01
polygon756.11706.29000.972 -7.84463758E-01 -7.84463757E-01
popdynm1000.53600.51001.051 1.97465286E+04 1.97465286E+04
popdynm2001.36501.41000.968 1.97465296E+04 1.97465296E+04
robot2000.85700.86000.997 9.14139688E+00 9.14139688E+00
robot4002.62502.65000.991 9.14102607E+00 9.14102607E+00
rocket1005.28105.72000.923 -1.01283202E+00 -1.01283202E+00
rocket20031.993033.57000.953 -1.01283569E+00 -1.01283569E+00
rocket400233.8110255.52000.915 -1.01283661E+00 -1.01283661E+00

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Solver IPOPTmumps faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
arki00020.32000.28001.143 1.87252774E+00 1.87252774E+00
arki0013154.5390119.27001.296 -2.24253087E+05 -2.24253082E+05
arki00181.17900.83001.420 1.04566244E-02 1.04566244E-02
catmix1000.09900.06001.650 -4.80694133E-02 -4.80694133E-02
ex8_2_2a4.99204.47001.117 -5.52666259E+02 -5.52666259E+02
ex8_2_2b6.89806.04001.142 -5.52666260E+02 -5.52666260E+02
ex8_2_3a11.987010.61001.130 -3.73107930E+03 -3.73107930E+03
flowchan2000.22200.19001.168 0.00000000E+00 0.00000000E+00
flowchan4000.81300.41001.983 0.00000000E+00 0.00000000E+00
gasoil1000.48300.38001.271 5.23659432E-03 5.23659432E-03
gasoil2000.75700.68001.113 5.23659587E-03 5.23659587E-03
gasoil500.16800.15001.120 5.23664002E-03 5.23664002E-03
popdynm500.80300.72001.115 1.97465452E+04 1.97465452E+04

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Solver IPOPTmumps much faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
lnts1000.33700.11003.064 5.54595401E-01 5.54595401E-01

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

Modelname Time (COINIPOPTDmumps) Time (IPOPTmumps) Ratio (COINIPOPTDmumps / IPOPTmumps) Obj (COINIPOPTDmumps) Obj (IPOPTmumps)
arki0003fail fail -- 0.00000000E+00 2.03364226E+03
arki0008fail fail -- 0.00000000E+00 0.00000000E+00
ex8_2_2fail fail -- NA -1.30247364E+03
glider100infeasible infeasible -- 0.00000000E+00 -2.18292806E-10
glider400infeasible infeasible -- -4.58759472E-10 -1.02538513E-09
glider50infeasible infeasible -- 0.00000000E+00 0.00000000E+00
robot100fail fail -- 0.00000000E+00 -2.01592568E+14

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