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: IPOPT-1.trc
Tracefile 2: IPOPT-2.trc
Solvers used : IPOPTma27
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 :- - - -
Solver IPOPTma27 much faster : 24 - 24 -
Solver IPOPTma27 faster : 33 - 33 -
Solvers perform the same : 15 - 15 -
Solver IPOPTmumps faster :- - - -
Solver IPOPTmumps much faster :- - - -
Solver IPOPTmumps infinitely faster :- - - -
Both solvers failed to solve optimally : 9 - 9 -
Total models: : 810810

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 IPOPTma27 much faster - Obj same for both solvers:

Modelname Time (IPOPTma27) Time (IPOPTmumps) Ratio (IPOPTma27 / IPOPTmumps) Obj (IPOPTma27) Obj (IPOPTmumps)
arki00020.06000.28000.214 1.87252774E+00 1.87252774E+00
arki00162.370015.75000.150 8.67973166E+02 8.67973166E+02
arki00170.47001.43000.329 -1.21833080E+02 -1.21833080E+02
arki00180.33000.83000.398 1.04566244E-02 1.04566244E-02
camshape4000.20001.32000.152 -4.27569663E+00 -4.27569663E+00
camshape8000.3300167.68000.002 -4.27430687E+00 -4.27430687E+00
flowchan2000.08000.19000.421 0.00000000E+00 0.00000000E+00
flowchan4000.20000.41000.488 0.00000000E+00 0.00000000E+00
gasoil1000.18000.38000.474 5.23659432E-03 5.23659432E-03
gasoil500.06000.15000.400 5.23664002E-03 5.23664002E-03
lnts2000.05000.13000.385 5.54577016E-01 5.54577016E-01
lnts4000.10000.26000.385 5.54572414E-01 5.54572414E-01
methanol2003.43007.55000.454 9.02228981E-03 9.02228981E-03
pinene1000.18000.44000.409 1.98721701E+01 1.98721701E+01
pinene250.08000.24000.333 1.98721655E+01 1.98721655E+01
pinene500.09000.26000.346 1.98721655E+01 1.98721655E+01
polygon500.74001.55000.477 -7.82132559E-01 -7.82132559E-01
polygon753.13006.29000.498 -7.84463757E-01 -7.84463757E-01
popdynm250.11000.32000.344 1.97522154E+04 1.97522154E+04
popdynm500.13000.72000.181 1.97465452E+04 1.97465452E+04
robot2000.30000.86000.349 9.14139684E+00 9.14139688E+00
robot4000.82002.65000.309 9.14102607E+00 9.14102607E+00
rocket1002.30005.72000.402 -1.01283202E+00 -1.01283202E+00
rocket20013.810033.57000.411 -1.01283569E+00 -1.01283569E+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)
arki00044.09004.92000.831 3.27733013E+02 3.27733013E+02
arki001158.4900115.07000.508 -2.24086460E+05 -2.24086460E+05
arki001293.7000152.71000.614 -2.24252427E+05 -2.24252443E+05
arki001372.0300119.27000.604 -2.24253085E+05 -2.24253082E+05
arki001466.2100122.79000.539 -2.23977086E+05 -2.23977074E+05
arki00152.97005.47000.543 -2.66940688E+02 -2.66940688E+02
arki00200.19000.26000.731 -4.10749544E+01 -4.10749544E+01
arki00211.14001.37000.832 -7.25821009E+01 -7.25821009E+01
arki00222.19002.49000.880 -8.70990913E+01 -8.70990913E+01
catmix2000.05000.09000.556 -4.80591358E-02 -4.80591358E-02
catmix4000.10000.14000.714 -4.80565435E-02 -4.80565435E-02
catmix8000.19000.28000.679 -4.80558974E-02 -4.80558974E-02
chain4000.06000.07000.857 5.06862169E+00 5.06862169E+00
ex8_2_2a2.45004.47000.548 -5.52666259E+02 -5.52666259E+02
ex8_2_2b3.06006.04000.507 -5.52666260E+02 -5.52666260E+02
ex8_2_3a6.590010.61000.621 -3.73107930E+03 -3.73107930E+03
ex8_2_3b7.820012.46000.628 -3.73107930E+03 -3.73107930E+03
ex8_2_5a2.70003.48000.776 -8.30338068E+02 -8.30338068E+02
ex8_2_5b9.360010.79000.867 -8.30338068E+02 -8.30338068E+02
flowchan1000.05000.10000.500 0.00000000E+00 0.00000000E+00
gasoil2000.37000.68000.544 5.23659587E-03 5.23659587E-03
gasoil4001.06001.61000.658 5.23659583E-03 5.23659583E-03
infeas10.41000.70000.586 1.36855965E+04 1.36855965E+04
jbearing250.51000.58000.879 -1.54015507E-01 -1.54015507E-01
methanol1000.29000.50000.580 9.02229108E-03 9.02229108E-03
methanol4004.74006.97000.680 9.02228992E-03 9.02228986E-03
methanol500.14000.16000.875 9.02228685E-03 9.02228685E-03
pinene2000.48000.91000.527 1.98721668E+01 1.98721668E+01
polygon1004.12005.07000.813 -7.85056137E-01 -7.85056137E-01
polygon250.06000.10000.600 -7.79740541E-01 -7.79740541E-01
popdynm1000.40000.51000.784 1.97465286E+04 1.97465286E+04
popdynm2000.86001.41000.610 1.97465296E+04 1.97465296E+04
rocket400127.7900255.52000.500 -1.01283661E+00 -1.01283661E+00

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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)
arki00238.26009.06000.912 -1.53660078E+02 -1.53660078E+02
catmix1000.06000.06001.000 -4.80694133E-02 -4.80694133E-02
elec2001218.37001213.61001.004 1.84392677E+04 1.84392677E+04
jbearing1007.01007.21000.972 -1.55041943E-01 -1.55041943E-01
jbearing501.64001.77000.927 -1.54823813E-01 -1.54823813E-01
jbearing753.77003.98000.947 -1.54984461E-01 -1.54984461E-01
lnts1000.02000.1100--- 5.54595401E-01 5.54595401E-01
minsurf1008.92009.17000.973 2.50694962E+00 2.50694962E+00
minsurf250.61000.65000.938 2.51948798E+00 2.51948798E+00
minsurf502.29002.29001.000 2.51489003E+00 2.51489003E+00
minsurf7515.040014.74001.020 2.50568679E+00 2.50568709E+00
torsion10013.530013.69000.988 -4.18239199E-01 -4.18239199E-01
torsion250.82000.86000.953 -4.17510726E-01 -4.17510726E-01
torsion503.52003.68000.957 -4.18087625E-01 -4.18087625E-01
torsion757.79007.96000.979 -4.18199390E-01 -4.18199390E-01

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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)
arki0003fail fail -- 2.58498717E+03 2.03364226E+03
arki0008fail fail -- 3.20252348E+05 0.00000000E+00
ex8_2_2fail fail -- -1.40558229E+03 -1.30247364E+03
glider100infeasible infeasible -- -3.55524467E-10 -2.18292806E-10
glider200infeasible infeasible -- -5.07735343E-10 -5.89894471E+01
glider400infeasible infeasible -- -1.02593784E-09 -1.02538513E-09
glider50infeasible infeasible -- 0.00000000E+00 0.00000000E+00
robot100unbounded fail -- -1.01370790E+22 -2.01592568E+14
robot50fail unbounded -- -1.21570388E+20 -5.03900774E+21

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