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-1.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 IPOPTma27 better
Solver COINIPOPTDmumps infinitely faster : 2 2 - -
Solver COINIPOPTDmumps much faster : 16 - 16 -
Solver COINIPOPTDmumps faster : 2 - 2 -
Solvers perform the same : 3 - 3 -
Solver IPOPTma27 faster : 22 - 22 -
Solver IPOPTma27 much faster : 29 - 29 -
Solver IPOPTma27 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 (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
glider2001821.6560infeasible -- -1.24889636E+03 -5.07735343E-10
robot5041.6870fail -- -1.55760109E+16 -1.21570388E+20

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Solver COINIPOPTDmumps much faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
arki00210.44401.14000.389 -7.25821009E+01 -7.25821009E+01
arki00220.68902.19000.315 -8.70990913E+01 -8.70990913E+01
arki00231.40308.26000.170 -1.53660078E+02 -1.53660078E+02
elec20051.87201218.37000.043 1.84392677E+04 1.84392677E+04
jbearing1000.66507.01000.095 -1.55041943E-01 -1.55041943E-01
jbearing250.15700.51000.308 -1.54015507E-01 -1.54015507E-01
jbearing500.31401.64000.191 -1.54823813E-01 -1.54823813E-01
jbearing750.46403.77000.123 -1.54984461E-01 -1.54984461E-01
minsurf1000.68108.92000.076 2.50694962E+00 2.50694962E+00
minsurf250.15000.61000.246 2.51948798E+00 2.51948798E+00
minsurf500.31402.29000.137 2.51489003E+00 2.51489003E+00
minsurf752.108015.04000.140 2.50568721E+00 2.50568679E+00
torsion1000.727013.53000.054 -4.18239199E-01 -4.18239199E-01
torsion250.16200.82000.198 -4.17510726E-01 -4.17510726E-01
torsion500.35603.52000.101 -4.18087625E-01 -4.18087625E-01
torsion750.53507.79000.069 -4.18199390E-01 -4.18199390E-01

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Solver COINIPOPTDmumps faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
arki00043.58004.09000.875 3.27733013E+02 3.27733013E+02
arki00200.14100.19000.742 -4.10749544E+01 -4.10749544E+01

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Solvers perform the same - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
arki001289.934093.70000.960 -2.24252273E+05 -2.24252427E+05
chain4000.06000.06001.000 5.06862169E+00 5.06862169E+00
ex8_2_5b10.13609.36001.083 -8.30338068E+02 -8.30338068E+02

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Solver IPOPTma27 faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
arki001191.910058.49001.571 -2.24086460E+05 -2.24086460E+05
arki00155.79902.97001.953 -2.66940688E+02 -2.66940688E+02
catmix1000.09900.06001.650 -4.80694133E-02 -4.80694133E-02
catmix2000.08400.05001.680 -4.80591358E-02 -4.80591358E-02
catmix4000.15400.10001.540 -4.80565435E-02 -4.80565435E-02
catmix8000.26600.19001.400 -4.80558974E-02 -4.80558974E-02
ex8_2_3a11.98706.59001.819 -3.73107930E+03 -3.73107930E+03
ex8_2_3b13.81007.82001.766 -3.73107930E+03 -3.73107930E+03
ex8_2_5a3.52502.70001.306 -8.30338068E+02 -8.30338068E+02
gasoil4001.77101.06001.671 5.23659583E-03 5.23659583E-03
infeas10.76900.41001.876 1.36855965E+04 1.36855965E+04
lnts1000.33700.0200--- 5.54595401E-01 5.54595401E-01
methanol1000.50900.29001.755 9.02229108E-03 9.02229108E-03
methanol2005.27003.43001.536 9.02228981E-03 9.02228981E-03
methanol4006.71004.74001.416 9.02228986E-03 9.02228992E-03
methanol500.17300.14001.236 9.02228685E-03 9.02228685E-03
polygon1004.75104.12001.153 -7.85056137E-01 -7.85056137E-01
polygon250.11100.06001.850 -7.79740541E-01 -7.79740541E-01
polygon756.11703.13001.954 -7.84463758E-01 -7.84463757E-01
popdynm1000.53600.40001.340 1.97465286E+04 1.97465286E+04
popdynm2001.36500.86001.587 1.97465296E+04 1.97465296E+04
rocket400233.8110127.79001.830 -1.01283661E+00 -1.01283661E+00

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Solver IPOPTma27 much faster - Obj same for both solvers:

Modelname Time (COINIPOPTDmumps) Time (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
arki00020.32000.06005.333 1.87252774E+00 1.87252774E+00
arki0013154.539072.03002.145 -2.24253087E+05 -2.24253085E+05
arki0014135.272066.21002.043 -2.23977069E+05 -2.23977086E+05
arki001615.88502.37006.703 8.67973166E+02 8.67973166E+02
arki00171.41400.47003.009 -1.21833080E+02 -1.21833080E+02
arki00181.17900.33003.573 1.04566244E-02 1.04566244E-02
camshape4001.29200.20006.460 -4.27569663E+00 -4.27569663E+00
camshape800150.92800.3300457.358 -4.27430687E+00 -4.27430687E+00
ex8_2_2a4.99202.45002.038 -5.52666259E+02 -5.52666259E+02
ex8_2_2b6.89803.06002.254 -5.52666260E+02 -5.52666260E+02
flowchan1000.10600.05002.120 0.00000000E+00 0.00000000E+00
flowchan2000.22200.08002.775 0.00000000E+00 0.00000000E+00
flowchan4000.81300.20004.065 0.00000000E+00 0.00000000E+00
gasoil1000.48300.18002.683 5.23659432E-03 5.23659432E-03
gasoil2000.75700.37002.046 5.23659587E-03 5.23659587E-03
gasoil500.16800.06002.800 5.23664002E-03 5.23664002E-03
lnts2000.13800.05002.760 5.54577016E-01 5.54577016E-01
lnts4000.28200.10002.820 5.54572414E-01 5.54572414E-01
pinene1000.48000.18002.667 1.98721701E+01 1.98721701E+01
pinene2001.00700.48002.098 1.98721668E+01 1.98721668E+01
pinene250.26100.08003.263 1.98721655E+01 1.98721655E+01
pinene500.26400.09002.933 1.98721655E+01 1.98721655E+01
polygon501.63300.74002.207 -7.82132559E-01 -7.82132559E-01
popdynm250.28500.11002.591 1.97522154E+04 1.97522154E+04
popdynm500.80300.13006.177 1.97465452E+04 1.97465452E+04
robot2000.85700.30002.857 9.14139688E+00 9.14139684E+00
robot4002.62500.82003.201 9.14102607E+00 9.14102607E+00
rocket1005.28102.30002.296 -1.01283202E+00 -1.01283202E+00
rocket20031.993013.81002.317 -1.01283569E+00 -1.01283569E+00

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

Modelname Time (COINIPOPTDmumps) Time (IPOPTma27) Ratio (COINIPOPTDmumps / IPOPTma27) Obj (COINIPOPTDmumps) Obj (IPOPTma27)
arki0003fail fail -- 0.00000000E+00 2.58498717E+03
arki0008fail fail -- 0.00000000E+00 3.20252348E+05
ex8_2_2fail fail -- NA -1.40558229E+03
glider100infeasible infeasible -- 0.00000000E+00 -3.55524467E-10
glider400infeasible infeasible -- -4.58759472E-10 -1.02593784E-09
glider50infeasible infeasible -- 0.00000000E+00 0.00000000E+00
robot100fail unbounded -- 0.00000000E+00 -1.01370790E+22

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