Resource Times:

Date / Time: 09/01/07 15:37:01


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 :3-SBB-3.trc
Tracefile 2 :4-SBB-4.trc
Solvers used : SBB-IPOPT-WS
SBB-CONOPT_IPOPT
Modeltype(s)   MINLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed


Total Obj SBB-IPOPT-WS better Obj same Obj SBB-CONOPT_IPOPT better
Solver SBB-IPOPT-WS infinitely faster : 1 1 - -
Solver SBB-IPOPT-WS much faster : 9 3 2 4
Solver SBB-IPOPT-WS faster : 5 1 3 1
Solvers perform the same : 27 - 26 1
Solver SBB-CONOPT_IPOPT faster : 26 3 21 2
Solver SBB-CONOPT_IPOPT much faster : 72 11 50 11
Solver SBB-CONOPT_IPOPT infinitely faster : 16 - - 16
Both solvers failed to solve optimally : 11 - 11 -
Total models: : 1671911335




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 SBB-IPOPT-WS infinitely faster - Obj of SBB-IPOPT-WS better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
tln6202.9100fail -- 2.47000000E+01 0.00000000E+00

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Solver SBB-IPOPT-WS much faster - Obj of SBB-IPOPT-WS better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
beuster4.96003600.00000.001 1.19870218E+05 1.24839343E+05
eg_disc2_s2.64006.21000.425 5.64950591E+00 5.93637221E+00
stockcycle49.290098.60000.500 1.19948688E+05 1.43295165E+05

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Solver SBB-IPOPT-WS much faster - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
eg_disc_s4.700013.77000.341 5.76053962E+00 5.76053962E+00
gastrans1.06008.10000.131 8.90858400E+01 8.90858400E+01

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Solver SBB-IPOPT-WS much faster - Obj of SBB-CONOPT_IPOPT better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
eg_all_s135.8100578.23000.235 7.95879555E+00 7.92018223E+00
eg_int_s7.130023.45000.304 7.88724302E+00 6.45310316E+00
nuclearva1.730036.25000.048 -1.00739866E+00 -1.01012730E+00
waterx1.5800126.82000.012 1.00387666E+03 9.38862849E+02

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Solver SBB-IPOPT-WS faster - Obj of SBB-IPOPT-WS better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
m6248.8800351.48000.708 8.22568769E+01 1.29824936E+02

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Solver SBB-IPOPT-WS faster - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
csched10.87001.01000.861 -3.06392578E+04 -3.06392578E+04
nous21.09001.37000.796 6.25967428E-01 6.25967412E-01
st_e360.11000.20000.550 -2.46000000E+02 -2.46000000E+02

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Solver SBB-IPOPT-WS faster - Obj of SBB-CONOPT_IPOPT better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
m7357.2400425.16000.840 1.44505315E+02 1.23964378E+02

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Solvers perform the same - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
ex12210.01000.0100--- 7.66718007E+00 7.66718007E+00
ex12220.06000.0300--- 1.07654308E+00 1.07654308E+00
ex1223a0.09000.0100--- 4.57958240E+00 4.57958240E+00
ex12260.02000.0000--- -1.70000000E+01 -1.70000000E+01
feedtray0.05000.0300--- -1.34059977E+01 -1.34059977E+01
gbd0.03000.0000--- 2.20000000E+00 2.20000000E+00
nvs060.07000.0100--- 1.77031250E+00 1.77031250E+00
nvs080.08000.0300--- 2.34497273E+01 2.34497273E+01
nvs090.01000.0000--- -4.31343369E+01 -4.31343369E+01
nvs100.05000.0100--- -3.10800000E+02 -3.10800000E+02
oaer0.08000.0000--- -1.92309848E+00 -1.92309854E+00
prob020.04000.0100--- 1.12235000E+05 1.12235000E+05
prob030.05000.0100--- 1.00000000E+01 1.00000000E+01
prob100.10000.0100--- 3.44550379E+00 3.44550379E+00
sep10.10000.0100--- -5.10080984E+02 -5.10080984E+02
st_e130.01000.0100--- 2.00000000E+00 2.00000000E+00
st_e150.01000.0100--- 7.66718007E+00 7.66718007E+00
st_e270.00000.0000--- 2.00000000E+00 2.00000000E+00
st_e380.01000.0000--- 7.19772715E+03 7.19772715E+03
st_miqp30.03000.0000--- -6.00000000E+00 -6.00000000E+00
st_miqp40.06000.0000--- -4.57400000E+03 -4.57400000E+03
st_miqp50.02000.0000--- -3.33888889E+02 -3.33888889E+02
st_test80.05000.0100--- -2.96050000E+04 -2.96050000E+04
st_testph40.07000.0200--- -8.05000000E+01 -8.05000000E+01
synthes10.10000.0100--- 6.00975891E+00 6.00975891E+00
tltr1534.01001662.79000.923 4.80666667E+01 4.80666667E+01

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Solvers perform the same - Obj of SBB-CONOPT_IPOPT better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
space25a13.620012.95001.052 4.87074333E+02 4.84328644E+02

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Solver SBB-CONOPT_IPOPT faster - Obj of SBB-IPOPT-WS better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
4stufen3.17002.49001.273 1.16329734E+05 1.16340860E+05
csched1a0.13000.0200--- -3.04301768E+04 -3.02797471E+04
meanvarx0.27000.0100--- 1.44040623E+01 1.44969830E+01

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Solver SBB-CONOPT_IPOPT faster - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
alan0.18000.0400--- 2.92500000E+00 2.92500000E+00
ex12230.18000.0400--- 4.57958240E+00 4.57958240E+00
ex1223b0.16000.0300--- 4.57958240E+00 4.57958240E+00
ex1264419.9600222.24001.890 8.60002238E+00 8.60000000E+00
ex1265a7.42004.33001.714 1.06000000E+01 1.06000000E+01
fac10.42000.0200--- 1.60912612E+08 1.60912612E+08
gkocis0.51000.0300--- -1.92309874E+00 -1.92309874E+00
m31.99001.17001.701 3.78000000E+01 3.78000000E+01
nvs040.13000.0200--- 7.20000000E-01 7.20000000E-01
nvs070.11000.08001.375 4.00000000E+00 4.00000000E+00
procsel0.47000.0400--- -1.92309874E+00 -1.92309874E+00
spring0.98000.60001.633 8.46245666E-01 8.46245666E-01
st_e140.18000.0400--- 4.57958240E+00 4.57958240E+00
st_e290.18000.0400--- -9.43470500E-01 -9.43470500E-01
st_e321.31000.96001.365 -1.43040728E+00 -1.43040728E+00
st_miqp10.13000.0100--- 2.81000000E+02 2.81000000E+02
st_miqp20.27000.0100--- 2.00000000E+00 2.00000000E+00
st_testgr10.28000.0300--- -1.27281000E+01 -1.27281000E+01
var_con102.75001.90001.447 4.44213954E+02 4.44213954E+02
var_con53.71002.62001.416 2.78144894E+02 2.78144894E+02
windfac0.18000.0100--- 2.54487298E-01 2.54487298E-01

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Solver SBB-CONOPT_IPOPT faster - Obj of SBB-CONOPT_IPOPT better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
csched2a7.93005.43001.460 -1.64403509E+05 -1.65398701E+05
du-opt2.76001.73001.595 3.56468638E+00 3.56108965E+00

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Solver SBB-CONOPT_IPOPT much faster - Obj of SBB-IPOPT-WS better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
csched2168.120029.80005.642 -1.66037846E+05 -1.65888736E+05
elf78.63000.4700167.298 1.91666667E-01 4.34666666E-01
eniplac3600.3200316.430011.378 -1.31598904E+05 -1.30344370E+05
ex123314.20000.710020.000 1.55010671E+05 1.55522462E+05
ex1265827.9800153.28005.402 1.03000000E+01 1.33000000E+01
gasnet8.02000.0800100.250 6.99938156E+06 7.04532689E+06
lop97icx2990.3400218.290013.699 4.17412307E+03 4.18494489E+03
nuclear14a3.03001.33002.278 -1.12963353E+00 -1.12821323E+00
nuclear24a3.03001.32002.295 -1.12963353E+00 -1.12821323E+00
st_e352.72000.0100--- 6.48680768E+04 1.17178934E+05
st_testgr33.15000.0300--- -2.05274000E+01 -2.04688000E+01

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Solver SBB-CONOPT_IPOPT much faster - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
batch1.76000.72002.444 2.85506508E+05 2.85506508E+05
batchdes0.28000.10002.800 1.67427657E+05 1.67427657E+05
deb101.11000.33003.364 2.09427812E+02 2.09427812E+02
deb678.020015.31005.096 2.01739305E+02 2.01739305E+02
deb71406.1000264.73005.311 1.16584560E+02 1.16584559E+02
deb82502.290075.260033.249 1.16584559E+02 1.16584559E+02
deb91564.530028.690054.532 1.16584559E+02 1.16584559E+02
du-opt546.440020.82002.231 8.07365758E+00 8.07365758E+00
enpro481817.71003.3200547.503 1.87277259E+05 1.87277259E+05
enpro48pb2518.24003.1500799.441 1.87277259E+05 1.87277259E+05
ex12240.16000.05003.200 -9.43470500E-01 -9.43470500E-01
ex12250.18000.05003.600 3.10000000E+01 3.10000000E+01
ex124352.81000.1300406.231 8.34025065E+04 8.34025064E+04
ex1244209.34000.18001163.000 8.20429052E+04 8.20429052E+04
ex1252108.70003.160034.399 1.28893741E+05 1.28893741E+05
ex1263a28.27008.17003.460 1.96000000E+01 1.96000000E+01
ex1264a45.670018.81002.428 8.60000000E+00 8.60000000E+00
ex1266447.64009.150048.922 1.63000000E+01 1.63000000E+01
ex1266a15.51000.960016.156 1.63000000E+01 1.63000000E+01
ex31.33000.22006.045 6.80097441E+01 6.80097441E+01
ex3pb1.88000.26007.231 6.80097441E+01 6.80097441E+01
fac318.32000.190096.421 3.19823098E+07 3.19823098E+07
feedtray2502.710075.66006.644 1.72344169E-10 0.00000000E+00
fuel0.21000.05004.200 8.56611896E+03 8.56611896E+03
gear217.79000.5700382.088 8.88761437E-10 0.00000000E+00
gear234.710016.86002.059 9.92157958E-10 9.74565345E-10
gear330.51000.670045.537 9.92157958E-10 0.00000000E+00
gear4473.970038.040012.460 1.64342847E+00 1.64342847E+00
johnall15.87002.05007.741 -2.24730162E+02 -2.24730162E+02
minlphix15.16001.140013.298 3.16692695E+02 3.16692695E+02
hmittelman1087.39007.0700153.803 1.30000000E+01 1.30000000E+01
nous10.90000.34002.647 1.56707200E+00 1.56707200E+00
nvs010.16000.07002.286 1.24696688E+01 1.24696688E+01
nvs020.58000.10005.800 5.96418452E+00 5.96418452E+00
nvs030.13000.05002.600 1.60000000E+01 1.60000000E+01
nvs053.52000.070050.286 5.47093411E+00 5.47093411E+00
ortez6.27000.620010.113 -9.53203905E+03 -9.53203905E+03
parallel3.75000.39009.615 9.24295558E+02 9.24295551E+02
pump4.72000.070067.429 1.34263585E+05 1.34263585E+05
ravempb175.14001.5400113.727 2.69590219E+05 2.69590219E+05
risk2b37.99000.3700102.676 -5.57361685E+01 -5.57361685E+01
risk2bpb5.35000.430012.442 -5.57361685E+01 -5.57361685E+01
spectra25.88001.27004.630 1.39783059E+01 1.39783059E+01
st_e311.46000.100014.600 -2.00000000E+00 -2.00000000E+00
st_test50.71000.0400--- -1.10000000E+02 -1.10000000E+02
st_test60.74000.11006.727 4.71000000E+02 4.71000000E+02
synheat18.08001.330013.594 1.54997335E+05 1.54997335E+05
synthes20.66000.08008.250 7.30353126E+01 7.30353125E+01
synthes33.43000.160021.438 6.80097407E+01 6.80097405E+01
tloss19.53002.11009.256 1.63000000E+01 1.63000000E+01

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Solver SBB-CONOPT_IPOPT much faster - Obj of SBB-CONOPT_IPOPT better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
cecil_133600.80005.3100678.117 -1.13308833E+05 -1.15544840E+05
contvar40.720017.91002.274 8.13745124E+05 8.09149827E+05
enpro563600.0000116.060031.018 2.63703235E+05 2.63428301E+05
enpro56pb3600.1800126.410028.480 2.66376497E+05 2.63428301E+05
ex1252a3600.14002.96001216.264 1.43555088E+05 1.28893741E+05
ex12631630.2800129.250012.613 3.36000000E+01 1.96000000E+01
ex43600.00002.10001714.286 2.71369187E+04 -8.06413616E+00
qapw931.22003.7300249.657 3.92610000E+05 3.88870000E+05
ravem3600.79002.82001276.876 2.83851860E+05 2.69590219E+05
space252943.900090.110032.670 4.87074333E+02 4.84328644E+02
util10.52000.0600175.333 1.00856681E+03 9.99897308E+02

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Solver SBB-CONOPT_IPOPT infinitely faster - Obj of SBB-CONOPT_IPOPT better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
blendgapunbounded 0.0300 -- -1.91364478E+04 0.00000000E+00
dosemin2dfail 3600.0300 -- 0.00000000E+00 1.73980583E+02
fac2fail 0.2800 -- 0.00000000E+00 3.31837498E+08
fuzzyfail 182.1300 -- -5.12740304E-01 -4.88877286E-01
mbtdfail 3600.3500 -- 0.00000000E+00 5.91666000E+00
meanvarxscfail 0.0100 -- 0.00000000E+00 1.43692321E+01
oil2fail 0.4400 -- -7.33353049E-01 -7.33260012E-01
pb302035fail 3600.5000 -- 0.00000000E+00 3.80440300E+06
pb351535fail 2349.0900 -- 0.00000000E+00 4.48528800E+06
qapfail 6.2000 -- 0.00000000E+00 3.95738000E+05
water4fail 282.7400 -- 0.00000000E+00 9.13157068E+02
water3fail 3600.0100 -- 0.00000000E+00 1.02878682E+03
watersym1fail 3600.0000 -- 0.00000000E+00 1.17873854E+03
watersym2fail 3511.3700 -- 0.00000000E+00 1.19396310E+03
watersfail 1099.9200 -- 0.00000000E+00 1.74336673E+03
watersbpfail 452.3500 -- 0.00000000E+00 9.07016996E+02

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

Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT-WS / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT_IPOPT)
fo7fail fail -- 0.00000000E+00 0.00000000E+00
hdafail fail -- 0.00000000E+00 0.00000000E+00
o7fail fail -- 0.00000000E+00 0.00000000E+00
pb302095fail fail -- 0.00000000E+00 0.00000000E+00
pb351595fail fail -- 0.00000000E+00 0.00000000E+00
st_e40infeasible infeasible -- 4.41421350E+00 4.41421350E+00
tln12fail fail -- 0.00000000E+00 0.00000000E+00
tln7fail fail -- 0.00000000E+00 0.00000000E+00
tls12fail fail -- 0.00000000E+00 0.00000000E+00
tls7fail fail -- 0.00000000E+00 0.00000000E+00
tls6fail fail -- 0.00000000E+00 0.00000000E+00

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