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 :2-SBB-2.trc
Tracefile 2 :4-SBB-4.trc
Solvers used : SBB-IPOPT
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 better Obj same Obj SBB-CONOPT_IPOPT better
Solver SBB-IPOPT infinitely faster :- - - -
Solver SBB-IPOPT much faster : 7 3 3 1
Solver SBB-IPOPT faster : 6 2 3 1
Solvers perform the same : 25 - 25 -
Solver SBB-CONOPT_IPOPT faster : 28 6 20 2
Solver SBB-CONOPT_IPOPT much faster : 75 10 53 12
Solver SBB-CONOPT_IPOPT infinitely faster : 14 - - 14
Both solvers failed to solve optimally : 12 - 12 -
Total models: : 1672111630




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 much faster - Obj of SBB-IPOPT better:

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
beuster4.86003600.00000.001 1.19870218E+05 1.24839343E+05
nuclearva13.630036.25000.376 -1.01123773E+00 -1.01012730E+00
stockcycle31.370098.60000.318 1.19948688E+05 1.43295165E+05

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
eg_all_s49.3100578.23000.085 7.92018223E+00 7.92018223E+00
eg_int_s10.010023.45000.427 6.45310316E+00 6.45310316E+00
gastrans0.92008.10000.114 8.90858400E+01 8.90858400E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
waterx2.2700126.82000.018 9.87003428E+02 9.38862849E+02

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
m6261.6500351.48000.744 1.06256877E+02 1.29824936E+02
m7270.0900425.16000.635 1.18756877E+02 1.23964378E+02

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
eg_disc_s7.820013.77000.568 5.76053962E+00 5.76053962E+00
ex1264a11.550018.81000.614 8.60000000E+00 8.60000000E+00
st_e360.12000.20000.600 -2.46000000E+02 -2.46000000E+02

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
space25a9.030012.95000.697 4.87074333E+02 4.84328644E+02

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Solvers perform the same - Obj same for both solvers:

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
alan0.08000.0400--- 2.92500000E+00 2.92500000E+00
ex12210.01000.0100--- 7.66718007E+00 7.66718007E+00
ex12220.06000.0300--- 1.07654308E+00 1.07654308E+00
ex1223a0.08000.0100--- 4.57958240E+00 4.57958240E+00
ex12260.02000.0000--- -1.70000000E+01 -1.70000000E+01
feedtray0.06000.0300--- -1.34059977E+01 -1.34059977E+01
gbd0.04000.0000--- 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
nvs100.06000.0100--- -3.10800000E+02 -3.10800000E+02
oaer0.08000.0000--- -1.92309846E+00 -1.92309854E+00
prob020.04000.0100--- 1.12235000E+05 1.12235000E+05
prob030.05000.0100--- 1.00000000E+01 1.00000000E+01
prob100.11000.0100--- 3.44550379E+00 3.44550379E+00
sep10.11000.0100--- -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_e270.01000.0000--- 2.00000000E+00 2.00000000E+00
st_e380.01000.0000--- 7.19772715E+03 7.19772715E+03
st_miqp30.02000.0000--- -6.00000000E+00 -6.00000000E+00
st_miqp50.02000.0000--- -3.33888889E+02 -3.33888889E+02
st_test80.07000.0100--- -2.96050000E+04 -2.96050000E+04
st_testph40.07000.0200--- -8.05000000E+01 -8.05000000E+01
tltr1786.96001662.79001.075 4.80666667E+01 4.80666667E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
4stufen2.87002.49001.153 1.16329734E+05 1.16340860E+05
csched1a0.27000.0200--- -3.02885046E+04 -3.02797471E+04
csched241.690029.80001.399 -1.66037846E+05 -1.65888736E+05
eg_disc2_s7.51006.21001.209 5.64950591E+00 5.93637221E+00
ex1265a5.01004.33001.157 1.03000000E+01 1.06000000E+01
meanvarx0.28000.0100--- 1.44040623E+01 1.44969830E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
csched11.32001.01001.307 -3.06392578E+04 -3.06392578E+04
ex12230.22000.0400--- 4.57958240E+00 4.57958240E+00
ex1223b0.17000.0300--- 4.57958240E+00 4.57958240E+00
gkocis0.23000.0300--- -1.92309874E+00 -1.92309874E+00
m31.90001.17001.624 3.78000000E+01 3.78000000E+01
nous10.65000.34001.912 1.56707200E+00 1.56707200E+00
nous21.59001.37001.161 6.25967418E-01 6.25967412E-01
nvs010.14000.07002.000 1.24696688E+01 1.24696688E+01
nvs040.16000.0200--- 7.20000000E-01 7.20000000E-01
nvs070.11000.08001.375 4.00000000E+00 4.00000000E+00
st_e140.20000.0400--- 4.57958240E+00 4.57958240E+00
st_e290.18000.0400--- -9.43470500E-01 -9.43470500E-01
st_e321.42000.96001.479 -1.43040728E+00 -1.43040728E+00
st_miqp10.13000.0100--- 2.81000000E+02 2.81000000E+02
st_miqp20.30000.0100--- 2.00000000E+00 2.00000000E+00
st_testgr10.30000.0300--- -1.27281000E+01 -1.27281000E+01
synthes10.12000.0100--- 6.00975891E+00 6.00975891E+00
var_con102.97001.90001.563 4.44213954E+02 4.44213954E+02
var_con53.69002.62001.408 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) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
csched2a9.08005.43001.672 -1.64403509E+05 -1.65398701E+05
st_miqp40.13000.0000--- -3.09282488E+03 -4.57400000E+03

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
elf125.45000.4700266.915 1.91666667E-01 4.34666666E-01
eniplac3600.0300316.430011.377 -1.31598904E+05 -1.30344370E+05
ex123310.20000.710014.366 1.55010671E+05 1.55522462E+05
ex1265842.1400153.28005.494 1.03000000E+01 1.33000000E+01
gasnet5.31000.080066.375 6.99938156E+06 7.04532689E+06
lop97icx3395.5400218.290015.555 4.12786969E+03 4.18494489E+03
nuclear14a2.70001.33002.030 -1.12963353E+00 -1.12821323E+00
nuclear24a2.69001.32002.038 -1.12963353E+00 -1.12821323E+00
st_e354.00000.0100--- 6.48680769E+04 1.17178934E+05
st_testgr34.19000.0300--- -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) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
batch1.72000.72002.389 2.85506508E+05 2.85506508E+05
batchdes0.30000.10003.000 1.67427657E+05 1.67427657E+05
deb100.97000.33002.939 2.09427812E+02 2.09427812E+02
deb652.430015.31003.425 2.01739305E+02 2.01739305E+02
deb72057.9700264.73007.774 1.16584559E+02 1.16584559E+02
deb83194.140075.260042.441 1.16584559E+02 1.16584559E+02
deb92015.160028.690070.239 1.16584559E+02 1.16584559E+02
du-opt552.330020.82002.513 8.07365758E+00 8.07365758E+00
enpro481969.37003.3200593.184 1.87277259E+05 1.87277259E+05
enpro48pb1622.19003.1500514.981 1.87277259E+05 1.87277259E+05
enpro561915.1700116.060016.502 2.63428301E+05 2.63428301E+05
ex12240.18000.05003.600 -9.43470500E-01 -9.43470500E-01
ex12250.15000.05003.000 3.10000000E+01 3.10000000E+01
ex124350.62000.1300389.385 8.34025064E+04 8.34025064E+04
ex1244255.51000.18001419.500 8.20429052E+04 8.20429052E+04
ex1252281.92003.160089.215 1.28893741E+05 1.28893741E+05
ex1263a35.80008.17004.382 1.96000000E+01 1.96000000E+01
ex1266565.85009.150061.842 1.63000000E+01 1.63000000E+01
ex1266a18.97000.960019.760 1.63000000E+01 1.63000000E+01
ex31.10000.22005.000 6.80097441E+01 6.80097441E+01
ex414.45002.10006.881 -8.06413616E+00 -8.06413616E+00
fac11.88000.0200--- 1.60912612E+08 1.60912612E+08
fac249.68000.2800177.429 3.31837498E+08 3.31837498E+08
fac37.29000.190038.368 3.19823098E+07 3.19823098E+07
feedtray2454.190075.66006.003 0.00000000E+00 0.00000000E+00
fuel0.21000.05004.200 8.56611896E+03 8.56611896E+03
gear32.84000.570057.614 1.54504505E-10 0.00000000E+00
gear2295.130016.860017.505 2.46275507E-08 9.74565345E-10
gear3235.39000.6700351.328 9.92157960E-10 0.00000000E+00
gear4374.560038.04009.846 1.64342847E+00 1.64342847E+00
johnall14.35002.05007.000 -2.24730162E+02 -2.24730162E+02
minlphix54.92001.140048.175 3.16692695E+02 3.16692695E+02
hmittelman23.61007.07003.339 1.30000000E+01 1.30000000E+01
nvs020.60000.10006.000 5.96418452E+00 5.96418452E+00
nvs030.15000.05003.000 1.60000000E+01 1.60000000E+01
nvs053.55000.070050.714 5.47093411E+00 5.47093411E+00
ortez7.21000.620011.629 -9.53203905E+03 -9.53203905E+03
parallel2.38000.39006.103 9.24295551E+02 9.24295551E+02
procsel1.09000.0400--- -1.92309874E+00 -1.92309874E+00
pump0.45000.07006.429 1.34263585E+05 1.34263585E+05
ravem145.22002.820051.496 2.69590219E+05 2.69590219E+05
ravempb51.51001.540033.448 2.69590219E+05 2.69590219E+05
risk2b32.09000.370086.730 -5.57361685E+01 -5.57361685E+01
risk2bpb20.83000.430048.442 -5.57361685E+01 -5.57361685E+01
spectra221.97001.270017.299 1.39783226E+01 1.39783059E+01
spring1.65000.60002.750 8.46245666E-01 8.46245666E-01
st_e310.80000.10008.000 -2.00000000E+00 -2.00000000E+00
st_test50.71000.0400--- -1.10000000E+02 -1.10000000E+02
st_test60.77000.11007.000 4.71000000E+02 4.71000000E+02
synheat13.27001.33009.977 1.54997335E+05 1.54997335E+05
synthes20.45000.08005.625 7.30353125E+01 7.30353125E+01
synthes31.30000.16008.125 6.80097405E+01 6.80097405E+01
tloss31.63002.110014.991 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) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
cecil_133623.65005.3100682.420 -1.10372429E+05 -1.15544840E+05
contvar100.420017.91005.607 8.13745124E+05 8.09149827E+05
du-opt3.92001.73002.266 3.56468638E+00 3.56108965E+00
enpro56pb3600.0000126.410028.479 2.63703235E+05 2.63428301E+05
ex1252a3600.02002.96001216.223 1.43555088E+05 1.28893741E+05
ex12631684.8700129.250013.036 2.26000000E+01 1.96000000E+01
ex12641929.5000222.24008.682 9.60000000E+00 8.60000000E+00
ex3pb3600.11000.260013846.577 9.58848500E+01 6.80097441E+01
qapw1426.18003.7300382.354 3.91288000E+05 3.88870000E+05
space252369.230090.110026.293 4.87074333E+02 4.84328644E+02
util5.22000.060087.000 1.00856681E+03 9.99897308E+02
water43600.1000282.740012.733 9.22528005E+02 9.13157068E+02

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

Modelname Time (SBB-IPOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT_IPOPT)
blendgapunbounded 0.0300 -- -1.91364478E+04 0.00000000E+00
dosemin2dfail 3600.0300 -- 0.00000000E+00 1.73980583E+02
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
water3fail 3600.0100 -- 0.00000000E+00 1.02878682E+03
watersym2fail 3511.3700 -- 0.00000000E+00 1.19396310E+03
watersym1fail 3600.0000 -- 0.00000000E+00 1.17873854E+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) Time (SBB-CONOPT_IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT_IPOPT) Obj (SBB-IPOPT) 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
tln6fail fail -- 0.00000000E+00 0.00000000E+00
tln7fail fail -- 0.00000000E+00 0.00000000E+00
tls12fail fail -- 0.00000000E+00 0.00000000E+00
tls6fail fail -- 0.00000000E+00 0.00000000E+00
tls7fail fail -- 0.00000000E+00 0.00000000E+00

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