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


Total Obj LINDOGLOBAL better Obj same Obj SBB better
Solver LINDOGLOBAL infinitely faster : 2 2 - -
Solver LINDOGLOBAL much faster : 4 1 3 -
Solver LINDOGLOBAL faster : 20 3 16 1
Solvers perform the same :- - - -
Solver SBB faster : 2 - 2 -
Solver SBB much faster : 9 4 5 -
Solver SBB infinitely faster :- - - -
Both solvers failed to solve optimally : 1 - 1 -
Total models: : 3810271




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 LINDOGLOBAL infinitely faster - Obj of LINDOGLOBAL better:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
tls63600.8170fail -- 2.07000000E+01 0.00000000E+00
tls73602.9820fail -- 2.25000000E+01 NA

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Solver LINDOGLOBAL much faster - Obj of LINDOGLOBAL better:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
meanvarx0.08200.21200.387 1.43692321E+01 1.44969830E+01

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Solver LINDOGLOBAL much faster - Obj same for both solvers:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
ex12230.09700.21500.451 4.57958240E+00 4.57958240E+00
ex1223b0.07300.21500.340 4.57958240E+00 4.57958240E+00
m6495.26202884.97700.172 8.22568776E+01 8.22568769E+01

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Solver LINDOGLOBAL faster - Obj of LINDOGLOBAL better:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
fo73600.30706719.63000.536 2.95437363E+01 3.00364183E+01
m73600.42805959.90000.604 1.06756877E+02 1.23964378E+02
o73600.43306631.94000.543 1.51307117E+02 1.81464728E+02

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Solver LINDOGLOBAL faster - Obj same for both solvers:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
alan0.02500.2080--- 2.92500000E+00 2.92500000E+00
ex1223a0.02200.1630--- 4.57958240E+00 4.57958240E+00
gbd0.00900.1450--- 2.20000000E+00 2.20000000E+00
nvs030.02700.2040--- 1.60000000E+01 1.60000000E+01
nvs100.01700.1480--- -3.10800000E+02 -3.10800000E+02
st_e140.14900.21400.696 4.57958240E+00 4.57958240E+00
st_miqp10.03100.2000--- 2.81000000E+02 2.81000000E+02
st_miqp20.04400.2720--- 2.00000000E+00 2.00000000E+00
st_miqp30.00800.1130--- -6.00000000E+00 -6.00000000E+00
st_miqp40.00600.1340--- -4.57400000E+03 -4.57400000E+03
st_miqp50.01200.1210--- -3.33888889E+02 -3.33888889E+02
st_test50.02900.3790--- -1.10000000E+02 -1.10000000E+02
st_test60.03700.4920--- 4.71000000E+02 4.71000000E+02
st_test80.02900.1410--- -2.96050000E+04 -2.96050000E+04
synthes10.04400.1670--- 6.00975902E+00 6.00975891E+00
st_testph40.01100.3650--- -8.05000000E+01 -8.05000000E+01

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Solver LINDOGLOBAL faster - Obj of SBB better:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
stockcycle310.0830591.14000.525 1.20532622E+05 1.19948688E+05

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Solver SBB faster - Obj same for both solvers:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
fac10.36100.23001.570 1.60912612E+08 1.60912612E+08
m31.69601.11201.525 3.77999999E+01 3.78000000E+01

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Solver SBB much faster - Obj of LINDOGLOBAL better:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
du-opt270.93601.7230157.247 3.55634006E+00 3.55699635E+00
risk2bpb2.22500.52404.246 -5.58761394E+01 -5.57361685E+01
st_testgr11.45400.32604.460 -1.28116000E+01 -1.27281000E+01
st_testgr311.14900.316035.282 -2.05900000E+01 -2.04688000E+01

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Solver SBB much faster - Obj same for both solvers:

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
batch2.24700.48704.614 2.85506508E+05 2.85506508E+05
du-opt52047.598021.316096.059 8.07365758E+00 8.07365758E+00
fac353.80900.557096.605 3.19823098E+07 3.19823098E+07
synthes20.59000.26502.226 7.30353125E+01 7.30353125E+01
synthes34.38100.432010.141 6.80097405E+01 6.80097405E+01

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

Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL / SBB) Obj (LINDOGLOBAL) Obj (SBB)
tls12fail fail -- NA 0.00000000E+00

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