Resource Times:

Results created on 11/20/09 15:35:10 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: COINIPOPT-1.trc
Tracefile 2: PATHNLP-1.trc
Solvers used : COINIPOPTma27
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed

Total Obj COINIPOPTma27 better Obj same Obj PATHNLP better
Solver COINIPOPTma27 infinitely faster : 9 9 - -
Solver COINIPOPTma27 much faster : 53 13 40 -
Solver COINIPOPTma27 faster : 6 - 6 -
Solvers perform the same : 3 - 3 -
Solver PATHNLP faster :- - - -
Solver PATHNLP much faster : 2 - 2 -
Solver PATHNLP infinitely faster : 4 - - 4
Both solvers failed to solve optimally : 4 - 4 -
Total models: : 8122554

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 COINIPOPTma27 infinitely faster - Obj of COINIPOPTma27 better:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
arki0012175.0900fail -- -2.24252435E+05 0.00000000E+00
arki001355.1900fail -- -2.24253088E+05 0.00000000E+00
arki001450.0200fail -- -2.23977086E+05 0.00000000E+00
camshape4000.1600fail -- -4.27569663E+00 0.00000000E+00
camshape8000.3200fail -- -4.27430687E+00 0.00000000E+00
elec20057.7000fail -- 1.84392677E+04 9.27104392E+03
glider2002014.5600fail -- -1.24880943E+03 0.00000000E+00
rocket1001.8400fail -- -1.01283202E+00 0.00000000E+00
rocket20011.8300fail -- -1.01283569E+00 0.00000000E+00

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Solver COINIPOPTma27 much faster - Obj of COINIPOPTma27 better:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
arki00042.7600526.56000.005 3.27733013E+02 1.77310632E+04
arki00152.6800243.02000.011 -2.66940688E+02 -1.80932729E+02
ex8_2_2a2.33001158.93000.002 -5.52666259E+02 -1.97215018E+02
ex8_2_2b3.0500580.07000.005 -5.52666260E+02 1.33230881E+02
ex8_2_3a6.76002895.70000.002 -3.73107930E+03 -3.10630214E+03
ex8_2_3b8.19004028.36000.002 -3.73107930E+03 -3.11415611E+03
ex8_2_5a2.4100358.86000.007 -8.30338068E+02 -4.54774107E+02
ex8_2_5b8.61001234.61000.007 -8.30338068E+02 -2.12132241E+02
lnts4000.0800268.70000.000 5.54572414E-01 1.33410797E+00
polygon1003.8400441.69000.009 -7.85056137E-01 -5.45056362E-01
polygon250.07000.66000.106 -7.79740541E-01 -7.79678243E-01
polygon500.650046.21000.014 -7.82132559E-01 -7.53266863E-01
polygon752.870016.72000.172 -7.84463757E-01 -7.55715641E-01

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Solver COINIPOPTma27 much faster - Obj same for both solvers:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
arki00020.06000.72000.083 1.87252774E+00 1.87252775E+00
arki001180.78003610.19000.022 -2.24086460E+05 -2.24086460E+05
arki00170.43005.27000.082 -1.21833080E+02 -1.21833080E+02
arki00180.31001.87000.166 1.04566244E-02 1.04566244E-02
arki00200.07000.48000.146 -4.10749544E+01 -4.10749544E+01
arki00210.23004.39000.052 -7.25821009E+01 -7.25821009E+01
arki00220.35009.47000.037 -8.70990913E+01 -8.70990913E+01
arki00230.720052.55000.014 -1.53660078E+02 -1.53660078E+02
catmix2000.04000.8800--- -4.80591358E-02 -4.80591431E-02
catmix4000.09002.62000.034 -4.80565435E-02 -4.80565465E-02
catmix8000.15003.70000.041 -4.80558974E-02 -4.80559008E-02
chain4000.02004.2900--- 5.06862169E+00 5.06862169E+00
flowchan2000.09000.26000.346 0.00000000E+00 0.00000000E+00
flowchan4000.17000.69000.246 0.00000000E+00 0.00000000E+00
gasoil2000.33000.89000.371 5.23659587E-03 5.23659587E-03
gasoil4001.01003.22000.314 5.23659583E-03 5.23659583E-03
infeas10.35001.60000.219 1.36855965E+04 1.36855965E+04
jbearing1000.47004.66000.101 -1.55041943E-01 -1.55041962E-01
jbearing250.11000.36000.306 -1.54015507E-01 -1.54015540E-01
jbearing500.20001.29000.155 -1.54823813E-01 -1.54824222E-01
jbearing750.32002.67000.120 -1.54984461E-01 -1.54984535E-01
lnts1000.03001.5700--- 5.54595401E-01 5.54595401E-01
lnts2000.060043.61000.001 5.54577016E-01 5.54577016E-01
minsurf1000.58005.34000.109 2.50694962E+00 2.50694926E+00
minsurf250.13000.35000.371 2.51948798E+00 2.51948768E+00
minsurf500.26001.28000.203 2.51489003E+00 2.51488916E+00
pinene1000.16005.51000.029 1.98721701E+01 1.98721701E+01
pinene2000.470012.20000.039 1.98721668E+01 1.98721668E+01
pinene250.08000.54000.148 1.98721655E+01 1.98721655E+01
pinene500.08000.52000.154 1.98721655E+01 1.98721655E+01
popdynm1000.23002.23000.103 1.97465286E+04 1.97465286E+04
popdynm2000.64007.28000.088 1.97465296E+04 1.97465296E+04
popdynm500.16000.54000.296 1.97465452E+04 1.97465452E+04
robot2000.270063.11000.004 9.14139675E+00 9.14139550E+00
robot4000.760052.88000.014 9.14102607E+00 9.14102603E+00
rocket400116.9400833.76000.140 -1.01283661E+00 -1.01283661E+00
torsion1000.610013.53000.045 -4.18239199E-01 -4.18239213E-01
torsion250.13000.68000.191 -4.17510726E-01 -4.17510730E-01
torsion500.29003.12000.093 -4.18087625E-01 -4.18087632E-01
torsion750.45007.33000.061 -4.18199390E-01 -4.18199401E-01

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Solver COINIPOPTma27 faster - Obj same for both solvers:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
catmix1000.04000.2100--- -4.80694133E-02 -4.80694241E-02
gasoil1000.15000.28000.536 5.23659432E-03 5.23659432E-03
gasoil500.06000.10000.600 5.23664002E-03 5.23664002E-03
methanol1000.27000.38000.711 9.02229108E-03 9.02229107E-03
methanol500.09000.13000.692 9.02228685E-03 9.02228684E-03
minsurf751.57002.58000.609 2.50568664E+00 2.50568648E+00

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Solvers perform the same - Obj same for both solvers:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
flowchan1000.03000.1200--- 0.00000000E+00 0.00000000E+00
methanol4004.09004.22000.969 9.02228992E-03 9.02228985E-03
popdynm250.14000.14001.000 1.97522154E+04 1.97522154E+04

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Solver PATHNLP much faster - Obj same for both solvers:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
arki001612.30002.40005.125 8.67973166E+02 8.67973166E+02
methanol2002.57001.18002.178 9.02228981E-03 9.02228980E-03

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Solver PATHNLP infinitely faster - Obj of PATHNLP better:

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
arki0003infeasible 647.0700 -- 8.63071054E+00 2.05736385E+06
ex8_2_2fail 1849.9500 -- -1.40516419E+03 2.57467449E+01
robot100unbounded 1.0500 -- -1.00002177E+24 9.14268538E+00
robot50unbounded 1.0400 -- -2.50210118E+23 9.14687850E+00

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

Modelname Time (COINIPOPTma27) Time (PATHNLP) Ratio (COINIPOPTma27 / PATHNLP) Obj (COINIPOPTma27) Obj (PATHNLP)
arki0008fail fail -- 3.28465611E+05 0.00000000E+00
glider100infeasible fail -- 0.00000000E+00 0.00000000E+00
glider400infeasible fail -- -1.17108212E-09 0.00000000E+00
glider50infeasible fail -- 0.00000000E+00 0.00000000E+00

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