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

Date / Time: 11/15/02 12:53:27


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


Total Obj. SNOPT better Obj. same Obj. OQNLP/MINOS better
Solver SNOPT much faster : 13 - 7 6
Solver SNOPT faster : - - - -
Solvers perform the same: - - - -
Solver OQNLP/MINOS faster : 12 - 9 3
Solver OQNLP/MINOS much faster : 64 - 52 12
Total models solved optimal/feasible : 89 - 68 21




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.


Back to top

Solver SNOPT much faster - Obj same for both solvers:

Modelname SNOPT OQNLP/MINOS Ratio (SNOPT / OQNLP/MINOS)Obj SNOPTObj OQNLP/MINOS
EX14_1_1 0.20311.03100.197 0.00000000E+00 0.00000000E+00
EX14_1_3 0.08980.50000.180 0.00000000E+00 0.00000000E+00
EX6_2_5 0.14061.37500.102 -7.07520778E+01 -7.07520778E+01
EX7_2_3 0.05080.81300.062 7.04924625E+03 7.04924825E+03
EX8_1_7 0.06252.28100.027 2.93108307E-02 2.93108307E-02
EX8_4_3 0.38674.43800.087 4.64971568E-03 4.64971566E-03
EX9_2_6 0.07810.57800.135 -1.00000000E+00 -1.00000000E+00

Back to top



Back to top

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

Modelname SNOPT OQNLP/MINOS Ratio (SNOPT / OQNLP/MINOS)Obj SNOPTObj OQNLP/MINOS
EX5_4_4 0.05083.68800.014 1.18416092E+04 1.00777754E+04
EX8_3_6 0.53134.40600.121 -5.00000000E-01 -1.00000000E+04
EX8_3_9 0.328118.17200.018 -7.59265470E-01 -7.63001935E-01
EX8_4_5 0.06251.57800.040 1.22529635E-03 3.07485988E-04
EX8_4_7 0.15637.98500.020 2.90473374E+01 2.90473067E+01
EX8_4_8 0.09382.46900.038 3.32184733E+00 0.00000000E+00

Back to top



Back to top

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

Modelname SNOPT OQNLP/MINOS Ratio (SNOPT / OQNLP/MINOS)Obj SNOPTObj OQNLP/MINOS
EX14_1_5 0.03130.37500.083 0.00000000E+00 0.00000000E+00
EX14_2_2 0.03130.39000.080 0.00000000E+00 0.00000000E+00
EX14_2_5 0.03130.42200.074 0.00000000E+00 0.00000000E+00
EX14_2_8 0.03130.50000.063 0.00000000E+00 0.00000000E+00
EX14_2_9 0.03130.51600.061 0.00000000E+00 0.00000000E+00
EX4_1_8 0.03130.51500.061 -1.67388932E+01 -1.67388932E+01
EX7_2_1 3.51562.03101.731 1.22722603E+03 1.22722608E+03
EX7_3_2 0.03130.46900.067 1.08986390E+00 1.08986397E+00
EX9_1_8 0.02730.50000.055 -3.25000000E+00 -3.25000000E+00

Back to top



Back to top

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

Modelname SNOPT OQNLP/MINOS Ratio (SNOPT / OQNLP/MINOS)Obj SNOPTObj OQNLP/MINOS
EX14_1_6 0.03130.46800.067 1.00000000E+00 0.00000000E+00
EX14_1_9 0.03130.29700.105 0.00000000E+00 0.00000000E+00
EX9_1_5 0.03130.51500.061 4.00000000E+00 -1.00000000E+00

Back to top



Back to top

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

Modelname SNOPT OQNLP/MINOS Ratio (SNOPT / OQNLP/MINOS)Obj SNOPTObj OQNLP/MINOS
EX14_1_2 0.04690.82800.057 0.00000000E+00 0.00000000E+00
EX14_2_1 0.04690.61000.077 0.00000000E+00 0.00000000E+00
EX14_2_3 0.01560.81300.019 0.00000000E+00 0.00000000E+00
EX14_2_4 0.02730.84400.032 0.00000000E+00 0.00000000E+00
EX14_2_6 0.04690.73400.064 0.00000000E+00 0.00000000E+00
EX14_2_7 0.03520.89100.039 0.00000000E+00 0.00000000E+00
EX2_1_1 0.03521.06300.033 -1.70000000E+01 -1.70000000E+01
EX2_1_2 0.01170.68800.017 -2.13000000E+02 -2.13000000E+02
EX2_1_3 0.01560.64000.024 -1.50000000E+01 -1.50000000E+01
EX2_1_4 0.03130.64000.049 -1.10000000E+01 -1.10000000E+01
EX2_1_5 0.03521.31200.027 -2.68014632E+02 -2.68014632E+02
EX2_1_6 0.04690.95300.049 -3.90000000E+01 -3.90000000E+01
EX2_1_7 0.03130.85900.036 -4.15041013E+03 -4.15041013E+03
EX2_1_9 0.01560.95300.016 -3.75000000E-01 -3.75000000E-01
EX3_1_1 0.03131.45300.022 7.04924801E+03 7.04924802E+03
EX3_1_2 0.04691.09300.043 -3.06655387E+04 -3.06655387E+04
EX3_1_3 0.01560.53100.029 -3.10000000E+02 -3.10000000E+02
EX3_1_4 0.03520.86000.041 -4.00000000E+00 -4.00000000E+00
EX4_1_2 0.03130.78100.040 -6.63500097E+02 -6.63500097E+02
EX4_1_3 0.02730.78100.035 -4.43671705E+02 -4.43671705E+02
EX4_1_4 0.03130.84300.037 0.00000000E+00 0.00000000E+00
EX4_1_6 0.01560.68800.023 7.00000000E+00 7.00000000E+00
EX4_1_7 0.03520.93800.037 -7.50000000E+00 -7.50000000E+00
EX4_1_9 0.02730.84400.032 -5.50801327E+00 -5.50801327E+00
EX5_2_2_CASE2 0.03131.65600.019 0.00000000E+00 0.00000000E+00
EX5_4_2 7.84380.92208.507 7.51223014E+03 7.51223014E+03
EX6_1_1 0.03130.68700.045 -2.01983116E-02 -2.01983117E-02
EX6_1_2 0.03521.21800.029 -3.24637501E-02 -3.24637501E-02
EX6_1_4 0.03520.65600.054 -2.94541288E-01 -2.94541288E-01
EX6_2_11 0.03130.54600.057 -2.67240776E-06 -2.67240776E-06
EX6_2_12 0.04690.71800.065 2.89194748E-01 2.89194748E-01
EX6_2_13 0.01562.29700.007 -2.16209437E-01 -2.16209437E-01
EX6_2_14 0.02730.78100.035 -6.95357935E-01 -6.95358016E-01
EX6_2_7 0.04691.00000.047 -1.60847615E-01 -1.60847615E-01
EX6_2_8 0.03520.75000.047 -2.70063488E-02 -2.70063488E-02
EX6_2_9 0.03130.81300.038 -3.40661841E-02 -3.40661841E-02
EX7_2_2 0.03130.96800.032 -3.88811438E-01 -3.88811434E-01
EX7_3_3 0.01562.15600.007 1.14477980E+00 1.14477980E+00
EX7_3_4 0.03130.89100.035 1.00000000E+01 1.00000000E+01
EX7_3_5 0.03131.21900.026 1.20689655E+00 1.20689655E+00
EX8_1_1 0.03130.90600.034 -2.02180678E+00 -2.02180678E+00
EX8_1_3 0.03131.15600.027 3.00000000E+01 3.00000000E+01
EX8_1_8 0.03520.90600.039 -3.88811438E-01 -3.88811434E-01
EX8_4_1 0.03131.64100.019 6.18572760E-01 6.18572759E-01
EX8_4_2 0.04692.92100.016 4.85152487E-01 4.85152487E-01
EX8_4_4 0.03131.23500.025 2.12459839E-01 2.12459839E-01
EX9_1_4 0.03130.98500.032 -3.70000000E+01 -3.70000000E+01
EX9_2_1 0.03132.68700.012 1.69999992E+01 1.70000000E+01
EX9_2_3 0.03135.89100.005 5.00000000E+00 5.00000000E+00
EX9_2_4 0.03131.95300.016 5.00000000E-01 5.00000000E-01
EX9_2_7 0.02732.81200.010 1.69999992E+01 1.70000000E+01
EX9_2_8 0.01560.56300.028 1.50000000E+00 1.50000000E+00

Back to top



Back to top

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

Modelname SNOPT OQNLP/MINOS Ratio (SNOPT / OQNLP/MINOS)Obj SNOPTObj OQNLP/MINOS
EX14_1_7 0.03130.71900.043 7.04274947E+00 1.34990213E-01
EX14_1_8 0.04690.65600.071 4.14158858E-02 0.00000000E+00
EX2_1_10 0.04690.95300.049 1.33718845E+05 4.93180180E+04
EX2_1_8 0.01562.03100.008 2.52870000E+04 2.05600000E+04
EX4_1_1 0.04690.81200.058 -5.19978061E-01 -7.48731236E+00
EX4_1_5 0.03134.10900.008 0.00000000E+00 -8.83333333E+19
EX5_2_2_CASE1 0.02730.73400.037 0.00000000E+00 -4.00000000E+02
EX5_2_2_CASE3 0.02730.57800.047 0.00000000E+00 -7.50000000E+02
EX5_2_4 0.03130.59400.053 -1.00000000E+02 -4.50000000E+02
EX5_2_5 0.03136.53100.005 -1.90000000E+03 -3.50000000E+03
EX7_2_4 0.04693.84400.012 4.20285303E+00 3.91801023E+00
EX8_1_2 0.01560.93700.017 2.80345848E+00 -1.07086102E+00

Back to top