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

Date / Time: 11/15/02 12:53:20


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 :alllocal.txt
Tracefile 2 :OQMSSNOPT.TXT
Solvers used : ALL/LOCAL
OQNLP/SNOPT
Modeltype(s)   NLP


Total Obj. ALL/LOCAL better Obj. same Obj. OQNLP/SNOPT better
Solver ALL/LOCAL much faster : 12 1 10 1
Solver ALL/LOCAL faster : - - - -
Solvers perform the same: - - - -
Solver OQNLP/SNOPT faster : 19 - 16 3
Solver OQNLP/SNOPT much faster : 58 - 50 8
Total models solved optimal/feasible : 89 1 76 12




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 ALL/LOCAL much faster - Obj of ALL/LOCAL better:

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX7_2_3 0.09380.75000.125 7.04922164E+03 7.04924844E+03

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Solver ALL/LOCAL much faster - Obj same for both solvers:

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX14_1_1 0.05080.93800.054 0.00000000E+00 0.00000000E+00
EX2_1_10 0.05080.87500.058 4.93180180E+04 4.93180180E+04
EX5_2_5 0.07034.29700.016 -3.50000000E+03 -3.50000000E+03
EX6_2_5 0.05861.21900.048 -7.07520778E+01 -7.07520778E+01
EX7_2_4 0.07034.53100.016 3.91801023E+00 3.91801023E+00
EX8_1_7 0.06252.14000.029 2.93108307E-02 2.93108307E-02
EX8_3_6 0.121120.64100.006 -5.00000000E-01 -5.00000000E-01
EX8_3_9 0.812525.54700.032 -7.63001934E-01 -7.63001935E-01
EX8_4_5 0.07811.28100.061 3.07485987E-04 3.07485939E-04
EX8_4_7 0.06648.07800.008 2.90473067E+01 2.90473245E+01

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Solver ALL/LOCAL much faster - Obj of OQNLP/SNOPT better:

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX8_4_8 0.093813.45300.007 3.32184733E+00 0.00000000E+00

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

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX14_1_3 0.04690.40600.115 0.00000000E+00 0.00000000E+00
EX14_1_5 0.03130.34400.091 0.00000000E+00 0.00000000E+00
EX14_1_9 0.03130.26600.117 0.00000000E+00 0.00000000E+00
EX14_2_1 0.03130.50000.063 0.00000000E+00 0.00000000E+00
EX14_2_2 0.02730.32800.083 0.00000000E+00 0.00000000E+00
EX14_2_5 0.02730.34400.079 0.00000000E+00 0.00000000E+00
EX14_2_8 0.03130.39000.080 0.00000000E+00 0.00000000E+00
EX14_2_9 0.03130.39000.080 0.00000000E+00 0.00000000E+00
EX3_1_3 0.01560.46800.033 -3.10000000E+02 -3.10000000E+02
EX4_1_8 0.03130.40600.077 -1.67388932E+01 -1.67388932E+01
EX6_2_11 0.03130.53100.059 -2.67240780E-06 -2.67240743E-06
EX7_3_2 0.02730.34400.079 1.08986397E+00 1.08986390E+00
EX9_1_4 0.02730.43700.063 -3.70000000E+01 -3.70000000E+01
EX9_1_5 0.01560.46900.033 -1.00000000E+00 -1.00000000E+00
EX9_1_8 0.02730.48400.056 -3.25000000E+00 -3.25000000E+00
EX9_2_6 0.03130.46900.067 -1.00000000E+00 -1.00000000E+00

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

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX14_1_6 0.03130.42200.074 1.00000000E+00 0.00000000E+00
EX14_1_7 0.03130.51500.061 7.04274947E+00 1.34990213E-01
EX5_2_4 0.03130.48400.065 -1.00000000E+02 -4.50000000E+02

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

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX14_1_2 0.04300.68800.062 0.00000000E+00 0.00000000E+00
EX14_2_3 0.01560.73400.021 0.00000000E+00 0.00000000E+00
EX14_2_4 0.02730.62500.044 0.00000000E+00 0.00000000E+00
EX14_2_6 0.03130.61000.051 0.00000000E+00 0.00000000E+00
EX14_2_7 0.03130.89000.035 0.00000000E+00 0.00000000E+00
EX2_1_1 0.03131.14100.027 -1.70000000E+01 -1.70000000E+01
EX2_1_2 0.01170.85900.014 -2.13000000E+02 -2.13000000E+02
EX2_1_3 0.01560.73400.021 -1.50000000E+01 -1.50000000E+01
EX2_1_4 0.01950.64100.030 -1.10000000E+01 -1.10000000E+01
EX2_1_5 0.01561.15600.014 -2.68014632E+02 -2.68014632E+02
EX2_1_6 0.03131.17100.027 -3.90000000E+01 -3.90000000E+01
EX2_1_7 0.02730.87500.031 -4.15041013E+03 -4.15041013E+03
EX2_1_9 0.01561.06300.015 -3.75000000E-01 -3.75000000E-01
EX3_1_1 0.03130.87500.036 7.04924802E+03 7.04924802E+03
EX3_1_2 0.03131.29700.024 -3.06655387E+04 -3.06655387E+04
EX3_1_4 0.03130.79700.039 -4.00000000E+00 -4.00000000E+00
EX4_1_1 0.03520.70300.050 -7.48731236E+00 -7.48731236E+00
EX4_1_2 0.03130.79700.039 -6.63500097E+02 -6.63500097E+02
EX4_1_3 0.01560.68800.023 -4.43671705E+02 -4.43671705E+02
EX4_1_4 0.01560.95300.016 0.00000000E+00 0.00000000E+00
EX4_1_6 0.01560.59300.026 7.00000000E+00 7.00000000E+00
EX4_1_7 0.03520.89000.040 -7.50000000E+00 -7.50000000E+00
EX4_1_9 0.01560.92200.017 -5.50801327E+00 -5.50801327E+00
EX5_2_2_CASE2 0.03131.39100.022 0.00000000E+00 0.00000000E+00
EX5_4_2 0.03916.35900.006 7.51223014E+03 7.51223014E+03
EX6_1_1 0.02730.65600.042 -2.01983117E-02 -2.01983116E-02
EX6_1_2 0.03131.42100.022 -3.24637501E-02 -3.24637501E-02
EX6_1_3 0.02730.61000.045 -3.52497801E-01 -3.52497698E-01
EX6_1_4 0.03130.57800.054 -2.94541288E-01 -2.94541288E-01
EX6_2_12 0.03131.18800.026 2.89194748E-01 2.89194748E-01
EX6_2_14 0.02730.87500.031 -6.95357935E-01 -6.95357935E-01
EX6_2_7 0.03131.57800.020 -1.60847615E-01 -1.60847615E-01
EX6_2_8 0.01560.76600.020 -2.70063488E-02 -2.70063488E-02
EX6_2_9 0.03131.42100.022 -3.40661844E-02 -3.40661841E-02
EX7_2_2 0.03130.98500.032 -3.88811438E-01 -3.88811434E-01
EX7_3_3 0.01562.15600.007 1.14477980E+00 1.14477980E+00
EX7_3_4 0.03130.71900.043 1.00000000E+01 1.00000000E+01
EX7_3_5 0.031310.07800.003 1.20689655E+00 1.20689655E+00
EX8_1_1 0.02730.93800.029 -2.02180678E+00 -2.02180678E+00
EX8_1_3 0.01561.20300.013 3.00000000E+01 3.00000000E+01
EX8_1_8 0.03520.84400.042 -3.88811438E-01 -3.88811434E-01
EX8_4_1 0.03131.60900.019 6.18572760E-01 6.18572759E-01
EX8_4_2 0.04692.73500.017 4.85152487E-01 4.85152487E-01
EX8_4_3 0.04697.06300.007 4.64971557E-03 4.64971568E-03
EX8_4_4 0.03131.17100.027 2.12459839E-01 2.12459839E-01
EX9_2_1 0.03132.50000.013 1.69999992E+01 1.69999992E+01
EX9_2_3 0.03135.48500.006 5.00000000E+00 5.00000000E+00
EX9_2_4 0.03131.60900.019 5.00000000E-01 5.00000000E-01
EX9_2_7 0.02732.48500.011 1.69999992E+01 1.69999992E+01
EX9_2_8 0.01560.62500.025 1.50000000E+00 1.50000000E+00

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

Modelname ALL/LOCAL OQNLP/SNOPT Ratio (ALL/LOCAL / OQNLP/SNOPT)Obj ALL/LOCALObj OQNLP/SNOPT
EX14_1_8 0.02730.60900.045 4.14158860E-02 0.00000000E+00
EX2_1_8 0.01562.98400.005 2.52870000E+04 1.56390000E+04
EX4_1_5 0.01174.01500.003 0.00000000E+00 -8.83333333E+19
EX5_2_2_CASE1 0.02730.67200.041 0.00000000E+00 -4.00000000E+02
EX5_2_2_CASE3 0.01560.81200.019 0.00000000E+00 -7.50000000E+02
EX6_2_13 0.01563.14100.005 -2.16209437E-01 -2.16209737E-01
EX7_2_1 0.04694.65600.010 1.22722606E+03 1.22721419E+03
EX8_1_2 0.01561.06200.015 2.80345848E+00 -1.07086102E+00

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