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-1.trc
Tracefile 2: IPOPT-2.trc
Solvers used : COINIPOPTDma27
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed

Total Obj COINIPOPTDma27 better Obj same Obj IPOPTmumps better
Solver COINIPOPTDma27 infinitely faster : 1 1 - -
Solver COINIPOPTDma27 much faster : 42 1 41 -
Solver COINIPOPTDma27 faster : 21 - 21 -
Solvers perform the same : 8 - 8 -
Solver IPOPTmumps faster : 1 - 1 -
Solver IPOPTmumps much faster :- - - -
Solver IPOPTmumps infinitely faster :- - - -
Both solvers failed to solve optimally : 8 - 8 -
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 COINIPOPTDma27 infinitely faster - Obj of COINIPOPTDma27 better:

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
arki00031499.9250fail -- 3.79519682E+03 2.03364226E+03

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Solver COINIPOPTDma27 much faster - Obj of COINIPOPTDma27 better:

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
arki00042.41004.92000.490 3.23467039E+02 3.27733013E+02

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Solver COINIPOPTDma27 much faster - Obj same for both solvers:

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
arki001256.1550152.71000.368 -2.24252426E+05 -2.24252443E+05
arki001450.4280122.79000.411 -2.23977035E+05 -2.23977074E+05
arki00152.65205.47000.485 -2.66940688E+02 -2.66940688E+02
arki00170.40201.43000.281 -1.21833080E+02 -1.21833080E+02
arki00180.29700.83000.358 1.04566244E-02 1.04566244E-02
arki00200.05800.26000.223 -4.10749544E+01 -4.10749544E+01
arki00210.17201.37000.126 -7.25821009E+01 -7.25821009E+01
arki00220.29602.49000.119 -8.70990913E+01 -8.70990913E+01
arki00230.57509.06000.063 -1.53660078E+02 -1.53660078E+02
camshape4000.15901.32000.120 -4.27569663E+00 -4.27569663E+00
camshape8000.3430167.68000.002 -4.27430687E+00 -4.27430687E+00
elec20058.44701213.61000.048 1.84392677E+04 1.84392677E+04
flowchan2000.09100.19000.479 0.00000000E+00 0.00000000E+00
jbearing1000.40007.21000.055 -1.55041943E-01 -1.55041943E-01
jbearing250.10700.58000.184 -1.54015507E-01 -1.54015507E-01
jbearing500.20101.77000.114 -1.54823813E-01 -1.54823813E-01
jbearing750.27803.98000.070 -1.54984461E-01 -1.54984461E-01
lnts4000.08300.26000.319 5.54572414E-01 5.54572414E-01
methanol2002.24307.55000.297 9.02228981E-03 9.02228981E-03
minsurf1000.52609.17000.057 2.50694962E+00 2.50694962E+00
minsurf250.14500.65000.223 2.51948798E+00 2.51948798E+00
minsurf500.23602.29000.103 2.51489003E+00 2.51489003E+00
minsurf751.362014.74000.092 2.50568661E+00 2.50568709E+00
pinene1000.16800.44000.382 1.98721701E+01 1.98721701E+01
pinene2000.42500.91000.467 1.98721668E+01 1.98721668E+01
pinene250.08100.24000.338 1.98721655E+01 1.98721655E+01
pinene500.08100.26000.312 1.98721655E+01 1.98721655E+01
polygon500.65801.55000.425 -7.82132559E-01 -7.82132559E-01
polygon752.89406.29000.460 -7.84463757E-01 -7.84463757E-01
popdynm2000.65501.41000.465 1.97465296E+04 1.97465296E+04
popdynm250.09900.32000.309 1.97522154E+04 1.97522154E+04
popdynm500.14900.72000.207 1.97465452E+04 1.97465452E+04
robot2000.27400.86000.319 9.14139686E+00 9.14139688E+00
robot4000.75202.65000.284 9.14102607E+00 9.14102607E+00
rocket1001.87105.72000.327 -1.01283202E+00 -1.01283202E+00
rocket20012.020033.57000.358 -1.01283569E+00 -1.01283569E+00
rocket400118.6340255.52000.464 -1.01283661E+00 -1.01283661E+00
torsion1000.554013.69000.040 -4.18239199E-01 -4.18239199E-01
torsion250.13200.86000.153 -4.17510726E-01 -4.17510726E-01
torsion500.26603.68000.072 -4.18087625E-01 -4.18087625E-01
torsion750.40907.96000.051 -4.18199390E-01 -4.18199390E-01

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Solver COINIPOPTDma27 faster - Obj same for both solvers:

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
arki001173.2350115.07000.636 -2.24086460E+05 -2.24086460E+05
arki001360.8560119.27000.510 -2.24253087E+05 -2.24253082E+05
arki001611.917015.75000.757 8.67973166E+02 8.67973166E+02
catmix4000.08400.14000.600 -4.80565435E-02 -4.80565435E-02
catmix8000.16200.28000.579 -4.80558974E-02 -4.80558974E-02
ex8_2_2a2.59404.47000.580 -5.52666259E+02 -5.52666259E+02
ex8_2_2b3.04506.04000.504 -5.52666260E+02 -5.52666260E+02
ex8_2_3a7.117010.61000.671 -3.73107930E+03 -3.73107930E+03
ex8_2_3b8.191012.46000.657 -3.73107930E+03 -3.73107930E+03
ex8_2_5a2.39303.48000.688 -8.30338068E+02 -8.30338068E+02
ex8_2_5b8.725010.79000.809 -8.30338068E+02 -8.30338068E+02
gasoil1000.20300.38000.534 5.23659432E-03 5.23659432E-03
gasoil2000.34700.68000.510 5.23659587E-03 5.23659587E-03
gasoil4000.98901.61000.614 5.23659583E-03 5.23659583E-03
gasoil500.11900.15000.793 5.23664002E-03 5.23664002E-03
infeas10.37600.70000.537 1.36855965E+04 1.36855965E+04
methanol1000.25200.50000.504 9.02229108E-03 9.02229108E-03
methanol4004.55506.97000.654 9.02228986E-03 9.02228986E-03
methanol500.08100.16000.506 9.02228685E-03 9.02228685E-03
polygon1003.79805.07000.749 -7.85056137E-01 -7.85056137E-01
popdynm1000.25900.51000.508 1.97465286E+04 1.97465286E+04

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Solvers perform the same - Obj same for both solvers:

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
catmix1000.03900.0600--- -4.80694133E-02 -4.80694133E-02
catmix2000.04500.0900--- -4.80591358E-02 -4.80591358E-02
chain4000.01600.0700--- 5.06862169E+00 5.06862169E+00
flowchan1000.04500.1000--- 0.00000000E+00 0.00000000E+00
flowchan4000.44900.41001.095 0.00000000E+00 0.00000000E+00
lnts1000.02800.1100--- 5.54595401E-01 5.54595401E-01
lnts2000.04300.1300--- 5.54577016E-01 5.54577016E-01
polygon250.03500.1000--- -7.79740541E-01 -7.79740541E-01

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Solver IPOPTmumps faster - Obj same for both solvers:

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
arki00020.51300.28001.832 1.87252774E+00 1.87252774E+00

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

Modelname Time (COINIPOPTDma27) Time (IPOPTmumps) Ratio (COINIPOPTDma27 / IPOPTmumps) Obj (COINIPOPTDma27) Obj (IPOPTmumps)
arki0008fail fail -- 0.00000000E+00 0.00000000E+00
ex8_2_2fail fail -- 0.00000000E+00 -1.30247364E+03
glider100infeasible infeasible -- -1.69275697E-10 -2.18292806E-10
glider200fail infeasible -- 0.00000000E+00 -5.89894471E+01
glider400infeasible infeasible -- -4.89344061E-10 -1.02538513E-09
glider50infeasible infeasible -- 0.00000000E+00 0.00000000E+00
robot100unbounded fail -- -1.00024894E+24 -2.01592568E+14
robot50fail unbounded -- -5.10349094E+15 -5.03900774E+21

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