Table A:   Considers only models solved optimal/feasible by both solvers.

Date / Time: 11/15/02 12:53:30


Total resource time for models solved optimal/feasible by solver A and solver B.

See the solver return definitions for optimal/feasible model and solve statuses. Solutions are not checked for how close they are to oneanother. 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.

A solver is considered to have a better objective function value, if the relative objective value difference is greater than 1.00E-06.

Tracefile 1 :OQMSMINOS.TXT
Tracefile 2 :OQMSSNOPT.TXT
Solvers used : OQNLP/MINOS
OQNLP/SNOPT
Modeltype(s)   NLP


Total Obj. OQNLP/MINOS better Obj. same Obj. OQNLP/SNOPT better
Solver OQNLP/MINOS much faster : 7 1 4 2
Solver OQNLP/MINOS faster : 20 - 17 3
Solvers perform the same: 38 1 37 -
Solver OQNLP/SNOPT faster : 32 1 30 1
Solver OQNLP/SNOPT much faster : 2 - 2 -
Total models solved optimal/feasible : 99 3 90 6




Solver return definition:

OutcomeModel StatusSolver Status
optimal 1 or 15 1
feasible 2 or 16 or 17 1 or 2 or 3 or 4 or 5




Resource Times:

Resource times (as in trace file) listed in seconds.


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Solver OQNLP/MINOS much faster - Obj of OQNLP/MINOS better:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX8_3_6 4.406020.64100.213 -1.00000000E+04 -5.00000000E-01

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Solver OQNLP/MINOS much faster - Obj same for both solvers:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX5_4_2 0.92206.35900.145 7.51223014E+03 7.51223014E+03
EX6_2_10 1.01602.73500.371 -3.05197613E+00 -3.05197611E+00
EX7_3_5 1.219010.07800.121 1.20689655E+00 1.20689655E+00
EX8_4_8 2.469013.45300.184 0.00000000E+00 0.00000000E+00

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Solver OQNLP/MINOS much faster - Obj of OQNLP/SNOPT better:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX7_2_1 2.03104.65600.436 1.22722608E+03 1.22721419E+03
EX8_4_6 0.81204.15600.195 1.00000002E+08 2.29246944E-01

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Solver OQNLP/MINOS faster - Obj same for both solvers:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX2_1_2 0.68800.85900.801 -2.13000000E+02 -2.13000000E+02
EX2_1_3 0.64000.73400.872 -1.50000000E+01 -1.50000000E+01
EX2_1_6 0.95301.17100.814 -3.90000000E+01 -3.90000000E+01
EX2_1_9 0.95301.06300.897 -3.75000000E-01 -3.75000000E-01
EX3_1_2 1.09301.29700.843 -3.06655387E+04 -3.06655387E+04
EX4_1_4 0.84300.95300.885 0.00000000E+00 0.00000000E+00
EX5_2_2_CASE3 0.57800.81200.712 -7.50000000E+02 -7.50000000E+02
EX5_4_4 3.68804.18700.881 1.00777754E+04 1.00777754E+04
EX6_1_2 1.21801.42100.857 -3.24637501E-02 -3.24637501E-02
EX6_2_12 0.71801.18800.604 2.89194748E-01 2.89194748E-01
EX6_2_14 0.78100.87500.893 -6.95358016E-01 -6.95357935E-01
EX6_2_7 1.00001.57800.634 -1.60847615E-01 -1.60847615E-01
EX6_2_9 0.81301.42100.572 -3.40661841E-02 -3.40661841E-02
EX7_2_4 3.84404.53100.848 3.91801023E+00 3.91801023E+00
EX8_1_2 0.93701.06200.882 -1.07086102E+00 -1.07086102E+00
EX8_3_9 18.172025.54700.711 -7.63001935E-01 -7.63001935E-01
EX8_4_3 4.43807.06300.628 4.64971566E-03 4.64971568E-03

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Solver OQNLP/MINOS faster - Obj of OQNLP/SNOPT better:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX2_1_8 2.03102.98400.681 2.05600000E+04 1.56390000E+04
EX6_2_13 2.29703.14100.731 -2.16209437E-01 -2.16209737E-01
EX8_5_1 0.65601.12500.583 3.17331690E-01 -5.11767638E-01

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Solvers perform the same - Obj of OQNLP/MINOS better:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX8_2_4 18.906017.56301.076 7.97785961E+01 8.20222781E+01

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Solvers perform the same - Obj same for both solvers:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX14_1_1 1.03100.93801.099 0.00000000E+00 0.00000000E+00
EX14_1_5 0.37500.34401.090 0.00000000E+00 0.00000000E+00
EX14_1_6 0.46800.42201.109 0.00000000E+00 0.00000000E+00
EX14_1_8 0.65600.60901.077 0.00000000E+00 0.00000000E+00
EX14_2_3 0.81300.73401.108 0.00000000E+00 0.00000000E+00
EX14_2_7 0.89100.89001.001 0.00000000E+00 0.00000000E+00
EX2_1_1 1.06301.14100.932 -1.70000000E+01 -1.70000000E+01
EX2_1_10 0.95300.87501.089 4.93180180E+04 4.93180180E+04
EX2_1_4 0.64000.64100.998 -1.10000000E+01 -1.10000000E+01
EX2_1_7 0.85900.87500.982 -4.15041013E+03 -4.15041013E+03
EX3_1_4 0.86000.79701.079 -4.00000000E+00 -4.00000000E+00
EX4_1_2 0.78100.79700.980 -6.63500097E+02 -6.63500097E+02
EX4_1_5 4.10904.01501.023 -8.83333333E+19 -8.83333333E+19
EX4_1_7 0.93800.89001.054 -7.50000000E+00 -7.50000000E+00
EX4_1_9 0.84400.92200.915 -5.50801327E+00 -5.50801327E+00
EX5_2_2_CASE1 0.73400.67201.092 -4.00000000E+02 -4.00000000E+02
EX5_4_3 1.17201.09301.072 4.84546200E+03 4.84546200E+03
EX6_1_1 0.68700.65601.047 -2.01983117E-02 -2.01983116E-02
EX6_2_11 0.54600.53101.028 -2.67240776E-06 -2.67240743E-06
EX6_2_8 0.75000.76600.979 -2.70063488E-02 -2.70063488E-02
EX7_2_2 0.96800.98500.983 -3.88811434E-01 -3.88811434E-01
EX7_2_3 0.81300.75001.084 7.04924825E+03 7.04924844E+03
EX7_3_3 2.15602.15601.000 1.14477980E+00 1.14477980E+00
EX8_1_1 0.90600.93800.966 -2.02180678E+00 -2.02180678E+00
EX8_1_3 1.15601.20300.961 3.00000000E+01 3.00000000E+01
EX8_1_7 2.28102.14001.066 2.93108307E-02 2.93108307E-02
EX8_1_8 0.90600.84401.073 -3.88811434E-01 -3.88811434E-01
EX8_2_1 8.73409.12500.957 8.20222781E+01 8.20222781E+01
EX8_4_1 1.64101.60901.020 6.18572759E-01 6.18572759E-01
EX8_4_2 2.92102.73501.068 4.85152487E-01 4.85152487E-01
EX8_4_4 1.23501.17101.055 2.12459839E-01 2.12459839E-01
EX8_4_7 7.98508.07800.988 2.90473067E+01 2.90473245E+01
EX9_1_5 0.51500.46901.098 -1.00000000E+00 -1.00000000E+00
EX9_1_8 0.50000.48401.033 -3.25000000E+00 -3.25000000E+00
EX9_2_1 2.68702.50001.075 1.70000000E+01 1.69999992E+01
EX9_2_3 5.89105.48501.074 5.00000000E+00 5.00000000E+00
EX9_2_8 0.56300.62500.901 1.50000000E+00 1.50000000E+00

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Solver OQNLP/SNOPT faster - Obj of OQNLP/MINOS better:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX14_1_9 0.29700.26601.117 0.00000000E+00 0.00000000E+00

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Solver OQNLP/SNOPT faster - Obj same for both solvers:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX14_1_2 0.82800.68801.203 0.00000000E+00 0.00000000E+00
EX14_1_3 0.50000.40601.232 0.00000000E+00 0.00000000E+00
EX14_1_7 0.71900.51501.396 1.34990213E-01 1.34990213E-01
EX14_2_1 0.61000.50001.220 0.00000000E+00 0.00000000E+00
EX14_2_2 0.39000.32801.189 0.00000000E+00 0.00000000E+00
EX14_2_4 0.84400.62501.350 0.00000000E+00 0.00000000E+00
EX14_2_5 0.42200.34401.227 0.00000000E+00 0.00000000E+00
EX14_2_6 0.73400.61001.203 0.00000000E+00 0.00000000E+00
EX14_2_8 0.50000.39001.282 0.00000000E+00 0.00000000E+00
EX14_2_9 0.51600.39001.323 0.00000000E+00 0.00000000E+00
EX2_1_5 1.31201.15601.135 -2.68014632E+02 -2.68014632E+02
EX3_1_1 1.45300.87501.661 7.04924802E+03 7.04924802E+03
EX3_1_3 0.53100.46801.135 -3.10000000E+02 -3.10000000E+02
EX4_1_1 0.81200.70301.155 -7.48731236E+00 -7.48731236E+00
EX4_1_3 0.78100.68801.135 -4.43671705E+02 -4.43671705E+02
EX4_1_6 0.68800.59301.160 7.00000000E+00 7.00000000E+00
EX4_1_8 0.51500.40601.268 -1.67388932E+01 -1.67388932E+01
EX5_2_2_CASE2 1.65601.39101.191 0.00000000E+00 0.00000000E+00
EX5_2_4 0.59400.48401.227 -4.50000000E+02 -4.50000000E+02
EX5_2_5 6.53104.29701.520 -3.50000000E+03 -3.50000000E+03
EX5_3_2 1.25001.11001.126 1.86415946E+00 1.86415946E+00
EX6_1_3 0.81200.61001.331 -3.52497801E-01 -3.52497698E-01
EX6_1_4 0.65600.57801.135 -2.94541288E-01 -2.94541288E-01
EX6_2_5 1.37501.21901.128 -7.07520778E+01 -7.07520778E+01
EX7_3_2 0.46900.34401.363 1.08986397E+00 1.08986390E+00
EX7_3_4 0.89100.71901.239 1.00000000E+01 1.00000000E+01
EX8_4_5 1.57801.28101.232 3.07485988E-04 3.07485939E-04
EX9_2_4 1.95301.60901.214 5.00000000E-01 5.00000000E-01
EX9_2_6 0.57800.46901.232 -1.00000000E+00 -1.00000000E+00
EX9_2_7 2.81202.48501.132 1.70000000E+01 1.69999992E+01

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Solver OQNLP/SNOPT faster - Obj of OQNLP/SNOPT better:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX8_5_3 3.96902.50001.588 7.23988018E+04 2.10874348E-01

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Solver OQNLP/SNOPT much faster - Obj same for both solvers:

Modelname OQNLP/MINOS OQNLP/SNOPT Ratio (OQNLP/MINOS / OQNLP/SNOPT)Obj OQNLP/MINOSObj OQNLP/SNOPT
EX5_3_3 20.31305.62503.611 3.23401822E+00 3.23401822E+00
EX9_1_4 0.98500.43702.254 -3.70000000E+01 -3.70000000E+01

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