Resource Times:

Date / Time: 09/29/08 16:04:55


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


Total Obj ALPHAECP better Obj same Obj SBB better
Solver ALPHAECP infinitely faster : 13 13 - -
Solver ALPHAECP much faster : 36 7 19 10
Solver ALPHAECP faster : 35 2 26 7
Solvers perform the same : 6 - 6 -
Solver SBB faster : 5 1 3 1
Solver SBB much faster : 27 2 10 15
Solver SBB infinitely faster : 17 - - 17
Both solvers failed to solve optimally : 4 - 4 -
Total models: : 143256850




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 ALPHAECP infinitely faster - Obj of ALPHAECP better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
feedtray21.9900infeasible -- 0.00000000E+00 0.00000000E+00
st_e130.0100infeasible -- 2.00000000E+00 1.00000000E+00
st_e310.9500infeasible -- -2.00000000E+00 0.00000000E+00
st_e360.0200infeasible -- -2.26182522E+02 0.00000000E+00
tln629.6100fail -- 1.66000000E+01 1.57000000E+01
tltr0.0400infeasible -- 4.80666667E+01 0.00000000E+00
pb3020351.1900fail -- 3.90896000E+06 0.00000000E+00
pb30209517.7790fail -- 5.75735500E+06 0.00000000E+00
pb35159539.5460fail -- 6.72354800E+06 0.00000000E+00
super3t3600.2200infeasible -- -6.40329746E-01 -1.00000000E+00
tln123600.8900fail -- 1.04600000E+02 0.00000000E+00
tln73600.6000fail -- 1.72000000E+01 2.35000000E+01
tls63600.9000fail -- 3.81000000E+01 0.00000000E+00

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Solver ALPHAECP much faster - Obj of ALPHAECP better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
eniplac5.210018.61200.280 -1.32117083E+05 -1.30344370E+05
ex1265a0.14000.33300.420 1.06000000E+01 1.51000000E+01
fo7356.45006719.63000.053 2.07298251E+01 3.00364183E+01
m711.64005959.90000.002 1.06756877E+02 1.23964378E+02
st_testgr10.08000.32600.245 -1.28116000E+01 -1.27281000E+01
st_testgr30.06000.31600.190 -2.05900000E+01 -2.04688000E+01
waterx3.610046.97200.077 9.17381873E+02 9.38862849E+02

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Solver ALPHAECP much faster - Obj same for both solvers:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
alan0.07000.20800.337 2.92500000E+00 2.92500000E+00
ex12220.06000.23700.253 1.07654308E+00 1.07654308E+00
ex1223a0.08000.16300.491 4.57958240E+00 4.57958240E+00
ex1264a0.300012.79500.023 8.60000000E+00 8.60000000E+00
ex1266a0.29001.12100.259 1.63000000E+01 1.63000000E+01
ex40.86003.41500.252 -8.06413617E+00 -8.06413616E+00
fac10.10000.23000.435 1.60912612E+08 1.60912612E+08
gear0.06003.32600.018 3.29992316E-09 0.00000000E+00
gear20.230075.26200.003 2.72645060E-08 9.74565345E-10
gear30.10003.37100.030 3.29992316E-09 0.00000000E+00
m30.25001.11200.225 3.78000000E+01 3.78000000E+01
m63.58002884.97700.001 8.22568769E+01 8.22568769E+01
nvs080.05000.18000.278 2.34497273E+01 2.34497273E+01
prob020.04000.7280--- 1.12235000E+05 1.12235000E+05
st_test50.05000.37900.132 -1.10000000E+02 -1.10000000E+02
synthes10.07000.16700.419 6.00975891E+00 6.00975891E+00
tloss0.26001.01700.256 1.63000000E+01 1.63000000E+01
ex12660.800011.42300.070 1.63000000E+01 1.63000000E+01
johnall0.04001.9880--- -2.24730162E+02 -2.24730162E+02

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Solver ALPHAECP much faster - Obj of SBB better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
eg_disc_s0.120011.14900.011 7.38016950E+00 5.76053962E+00
eg_disc2_s0.21005.28600.040 5.94457704E+00 5.93637221E+00
eg_int_s0.410019.32500.021 8.02615625E+00 6.45310316E+00
ex12240.11000.22900.480 -7.19136000E-01 -9.43470500E-01
ex1263a0.15006.68900.022 2.03000000E+01 2.00000000E+01
gear40.1200190.33300.001 9.45991439E+02 1.64342847E+00
ex12630.390021.52400.018 2.13000000E+01 1.96000000E+01
ex12640.23007.86700.029 9.30000000E+00 8.60000000E+00
ex12651.18005.98400.197 1.13000000E+01 1.03000000E+01
pb3515350.72001584.68500.000 4.51012800E+06 4.48528800E+06

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Solver ALPHAECP faster - Obj of ALPHAECP better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
meanvarx0.12000.21200.566 1.43692321E+01 1.44969830E+01
o73456.29006631.94000.521 1.31653138E+02 1.81464728E+02

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Solver ALPHAECP faster - Obj same for both solvers:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
batchdes0.15000.23200.647 1.67427657E+05 1.67427657E+05
du-opt512.872021.31600.604 8.07365758E+00 8.07365758E+00
ex12230.16000.21500.744 4.57958240E+00 4.57958240E+00
ex1223b0.13000.21500.605 4.57958240E+00 4.57958240E+00
ex12260.01000.1160--- -1.70000000E+01 -1.70000000E+01
gbd0.01000.1450--- 2.20000000E+00 2.20000000E+00
gkocis0.20000.24800.806 -1.92309874E+00 -1.92309874E+00
minlphix0.36000.44700.805 3.16692695E+02 3.16692695E+02
nvs030.01000.2040--- 1.60000000E+01 1.60000000E+01
nvs060.02000.1750--- 1.77031250E+00 1.77031250E+00
nvs070.00000.1980--- 4.00000000E+00 4.00000000E+00
nvs090.00000.1200--- -4.31343369E+01 -4.31343369E+01
nvs100.04000.1480--- -3.10800000E+02 -3.10800000E+02
parallel0.45000.67700.665 9.24295551E+02 9.24295551E+02
prob030.00000.1750--- 1.00000000E+01 1.00000000E+01
procsel0.03000.3480--- -1.92309874E+00 -1.92309874E+00
st_e140.11000.21400.514 4.57958240E+00 4.57958240E+00
st_e270.06000.11900.504 2.00000000E+00 2.00000000E+00
st_e380.01000.1170--- 7.19772715E+03 7.19772715E+03
st_miqp10.00000.2000--- 2.81000000E+02 2.81000000E+02
st_miqp20.04000.2720--- 2.00000000E+00 2.00000000E+00
st_miqp30.01000.1130--- -6.00000000E+00 -6.00000000E+00
st_miqp40.00000.1340--- -4.57400000E+03 -4.57400000E+03
st_test60.02000.4920--- 4.71000000E+02 4.71000000E+02
st_test80.01000.1410--- -2.96050000E+04 -2.96050000E+04
st_testph40.01000.3650--- -8.05000000E+01 -8.05000000E+01

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Solver ALPHAECP faster - Obj of SBB better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
ex12250.01000.2000--- 3.40000000E+01 3.10000000E+01
ex12430.04000.3600--- 5.15069761E+05 8.34025064E+04
nvs040.02000.1740--- 2.12000000E+00 7.20000000E-01
oaer0.11000.17500.629 0.00000000E+00 -1.92309854E+00
st_e290.16000.22800.702 -7.19136000E-01 -9.43470500E-01
st_e350.00000.1230--- 3.01340503E+05 1.17178934E+05
mbtd2694.16003621.37500.744 6.41667000E+00 5.66666000E+00

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Solvers perform the same - Obj same for both solvers:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
fac20.68000.67501.007 3.31837498E+08 3.31837498E+08
fac30.57000.55701.023 3.19823098E+07 3.19823098E+07
st_miqp50.04000.1210--- -3.33888889E+02 -3.33888889E+02
synthes20.27000.26501.019 7.30353125E+01 7.30353125E+01
enpro48pb4.55004.66700.975 1.87277259E+05 1.87277259E+05
enpro56pb32.899033.09500.994 2.63428301E+05 2.63428301E+05

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Solver SBB faster - Obj of ALPHAECP better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
csched1a0.57000.29301.945 -3.04301768E+04 -3.02797471E+04

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Solver SBB faster - Obj same for both solvers:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
ex12440.70000.47801.464 8.20429052E+04 8.20429052E+04
synthes30.85000.43201.968 6.80097405E+01 6.80097405E+01
ravempb1.91001.41901.346 2.69590219E+05 2.69590219E+05

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Solver SBB faster - Obj of SBB better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
du-opt3.09001.72301.793 3.55923932E+00 3.55699635E+00

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Solver SBB much faster - Obj of ALPHAECP better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
util2.00000.28706.969 9.99578750E+02 9.99897308E+02
risk2bpb1.10000.52402.099 -5.58761394E+01 -5.57361685E+01

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Solver SBB much faster - Obj same for both solvers:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
batch4.10000.48708.419 2.85506508E+05 2.85506508E+05
ex123318.97901.371013.843 1.55010669E+05 1.55010671E+05
ex3pb2.44000.54004.519 6.80096965E+01 6.80097441E+01
fuel0.86000.18804.574 8.56611896E+03 8.56611896E+03
gastrans13.06601.239010.546 8.90858400E+01 8.90858400E+01
hmittelman7021.00001.05406661.290 1.30000000E+01 1.30000000E+01
nous14161.00000.208020004.808 1.56707200E+00 1.56707200E+00
sep10.59000.23402.521 -5.10080984E+02 -5.10080984E+02
spectra2146.90001.670087.964 1.39783059E+01 1.39783059E+01
synheat20.66203.08106.706 1.54997335E+05 1.54997335E+05

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Solver SBB much faster - Obj of SBB better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
cecil_131161.58005.4140214.551 -1.10059294E+05 -1.15544840E+05
csched2a3600.28004.3700823.863 -1.58613910E+05 -1.63862782E+05
eg_all_s91.673013.15506.969 9.87075622E+00 7.92018223E+00
elf4.25000.90304.707 1.22166667E+00 4.34666666E-01
gasnet3600.02000.234015384.701 7.04876508E+06 7.04532689E+06
nous24099.00000.161025459.627 1.38431741E+00 6.25967412E-01
nvs0113.00000.311041.801 2.53195622E+02 1.24696688E+01
ortez1.18000.48402.438 -3.66885350E+03 -9.53203905E+03
st_e323600.12000.40708845.504 -1.24036005E+00 -1.43040728E+00
hda3600.07003.9890902.499 -4.81836328E+03 -5.76265149E+03
nuclearva3600.21000.39109207.698 -1.00926936E+00 -1.00948507E+00
qap36.33005.70906.364 4.01530000E+05 3.95738000E+05
qapw49.75001.841027.023 4.02260000E+05 3.88870000E+05
stockcycle3600.2400591.14006.090 1.23665843E+05 1.19948688E+05
water43600.470076.975046.775 1.58799068E+03 9.13157068E+02

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Solver SBB infinitely faster - Obj of SBB better:

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
4stufeninfeasible 2.9490 -- NA 1.16372139E+05
beusterinfeasible 71.9220 -- NA 1.17074966E+05
contvarfail 10.2790 -- NA 8.09149827E+05
ex1221fail 0.1580 -- NA 7.66718007E+00
ex1252fail 2.4880 -- NA 1.28893741E+05
ex1252afail 1.3950 -- NA 1.28893741E+05
feedtrayfail 0.1840 -- NA -1.34059977E+01
nvs02fail 0.3430 -- NA 5.96418452E+00
nvs05fail 0.1900 -- NA 5.47093411E+00
pumpfail 0.1920 -- NA 1.34263585E+05
springfail 0.3870 -- NA 8.46245666E-01
lop97icxfail 6131.7190 -- NA 4.12626060E+03
nuclear14afail 0.7910 -- NA -1.12856489E+00
nuclear24afail 0.8210 -- NA -1.12856489E+00
oil2infeasible 0.5040 -- NA -7.33260012E-01
space25fail 113.6170 -- NA 4.84328644E+02
space25afail 10.4610 -- NA 4.84328644E+02

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

Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP / SBB) Obj (ALPHAECP) Obj (SBB)
st_e15fail infeasible -- NA 3.00000000E+00
st_e40fail infeasible -- NA 4.41421350E+00
tls12fail fail -- NA 0.00000000E+00
tls7fail fail -- NA NA

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