Resource Times:

Date / Time: 09/29/08 16:20:37


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.

Tracefile 1 :BARON-2.trc.convex
Tracefile 2 :OQNLP-1.trc.convex
Solvers used : BARON2
OQNLP
Modeltype(s)   MINLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed


Total Obj BARON2 better Obj same Obj OQNLP better
Solver BARON2 infinitely faster : 20 20 - -
Solver BARON2 much faster : 15 4 10 1
Solver BARON2 faster :- - - -
Solvers perform the same :- - - -
Solver OQNLP faster :- - - -
Solver OQNLP much faster : 2 2 - -
Solver OQNLP infinitely faster :- - - -
Both solvers failed to solve optimally : 1 - 1 -
Total models: : 3826111




Solver return definition:

OutcomeModel StatusSolver Status
globally optimal 1 or 15 1
locally optimal/feasible 2 or 8 or 16 1 or 2 or 3 or 4 or 5




Resource Times:

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Solver BARON2 infinitely faster - Obj of BARON2 better:

Modelname Time (BARON2) Time (OQNLP) Ratio (BARON2 / OQNLP) Obj (BARON2) Obj (OQNLP)
batch1.2400fail -- 2.85506508E+05 NA
fac10.0300fail -- 1.60912612E+08 1.60912612E+08
fac30.3500fail -- 3.19823098E+07 3.19951435E+07
fo73600.0000fail -- 2.21187698E+01 1.32100000E+01
m30.0600fail -- 3.78000000E+01 NA
m6110.3400fail -- 8.22568769E+01 9.03202908E+01
m7569.2100fail -- 1.06756877E+02 1.01295951E+02
nvs030.0100fail -- 1.60000000E+01 1.60000000E+01
nvs100.0200fail -- -3.10800000E+02 -3.10800000E+02
o73600.0000fail -- 1.36731318E+02 4.01095188E+04
st_miqp10.0100infeasible -- 2.81000000E+02 0.00000000E+00
st_miqp20.0100fail -- 2.00000000E+00 2.00000000E+00
st_miqp30.0000fail -- -6.00000000E+00 -6.00000000E+00
st_test80.0200fail -- -2.96050000E+04 0.00000000E+00
st_testph40.0100fail -- -8.05000000E+01 NA
stockcycle12.9600fail -- 1.20359713E+05 4.36419130E+05
synthes20.0200fail -- 7.30353326E+01 7.30353125E+01
synthes30.0600fail -- 6.80119578E+01 6.80097405E+01
tls63600.0000fail -- 1.64000000E+01 0.00000000E+00
tls73600.0000fail -- 1.72000000E+01 NA

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Solver BARON2 much faster - Obj of BARON2 better:

Modelname Time (BARON2) Time (OQNLP) Ratio (BARON2 / OQNLP) Obj (BARON2) Obj (OQNLP)
meanvarx0.1300370.15400.000 1.43692321E+01 1.54061815E+01
risk2bpb2.0900375.84400.006 -5.57361685E+01 -2.80729076E+01
st_testgr10.020016.7820--- -1.27392000E+01 -7.82915000E+00
st_testgr30.280018.22900.015 -2.04910500E+01 -8.86775000E+00

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Solver BARON2 much faster - Obj same for both solvers:

Modelname Time (BARON2) Time (OQNLP) Ratio (BARON2 / OQNLP) Obj (BARON2) Obj (OQNLP)
ex12230.060025.23300.002 4.57958240E+00 4.57958240E+00
ex1223a0.010022.4750--- 4.57958240E+00 4.57958240E+00
ex1223b0.040022.9600--- 4.57958240E+00 4.57958240E+00
gbd0.000063.1840--- 2.20000000E+00 2.20000000E+00
st_e140.060025.08400.002 4.57958240E+00 4.57958240E+00
st_miqp40.000045.5470--- -4.57400000E+03 -4.57400000E+03
st_miqp50.010014.7260--- -3.33888889E+02 -3.33888889E+02
st_test50.02005.1320--- -1.10000000E+02 -1.10000000E+02
st_test60.04004.8810--- 4.71000000E+02 4.71000000E+02
synthes10.010029.7890--- 6.00975891E+00 6.00975891E+00

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Solver BARON2 much faster - Obj of OQNLP better:

Modelname Time (BARON2) Time (OQNLP) Ratio (BARON2 / OQNLP) Obj (BARON2) Obj (OQNLP)
alan0.0300858.5480--- 2.92595245E+00 2.92500000E+00

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Solver OQNLP much faster - Obj of BARON2 better:

Modelname Time (BARON2) Time (OQNLP) Ratio (BARON2 / OQNLP) Obj (BARON2) Obj (OQNLP)
du-opt5106.140034.70203.059 8.07365758E+00 1.91852038E+01
du-opt62.500023.65202.642 3.58039065E+00 6.92601512E+01

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

Modelname Time (BARON2) Time (OQNLP) Ratio (BARON2 / OQNLP) Obj (BARON2) Obj (OQNLP)
tls12fail fail -- NA 0.00000000E+00

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