Resource Times:

Date / Time: 09/02/07 12:19:52


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-5.trc
Tracefile 2 :3-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 : 8 4 3 1
Solver SBB-IPOPT faster : 6 2 3 1
Solvers perform the same : 26 - 25 1
Solver SBB-CONOPT-IPOPT faster : 26 6 19 1
Solver SBB-CONOPT-IPOPT much faster : 77 11 53 13
Solver SBB-CONOPT-IPOPT infinitely faster : 12 - - 12
Both solvers failed to solve optimally : 12 - 12 -
Total models: : 1672311529




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)
beuster4.58003600.00000.001 1.19870218E+05 1.24839343E+05
mbtd1514.34003600.35000.421 4.66666000E+00 5.91666000E+00
nuclearva13.610036.25000.375 -1.01123773E+00 -1.01012730E+00
stockcycle30.590098.60000.310 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_s50.7100578.23000.088 7.92018223E+00 7.92018223E+00
eg_int_s10.310023.45000.440 6.45310316E+00 6.45310316E+00
gastrans0.86008.10000.106 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)
waterx2.2200126.82000.018 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)
m6255.3300351.48000.726 1.06256877E+02 1.29824936E+02
m7266.1500425.16000.626 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_s8.070013.77000.586 5.76053962E+00 5.76053962E+00
ex1264a11.290018.81000.600 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)
space25a8.800012.95000.680 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)
alan0.09000.0400--- 2.92500000E+00 2.92500000E+00
ex12210.01000.0100--- 7.66718007E+00 7.66718007E+00
ex12220.06000.0300--- 1.07654308E+00 1.07654308E+00
ex1223a0.07000.0100--- 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
nvs080.07000.0300--- 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--- -1.92309846E+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
sep10.11000.0100--- -5.10080984E+02 -5.10080984E+02
st_e130.01000.0100--- 2.00000000E+00 2.00000000E+00
st_e150.02000.0100--- 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_test80.09000.0100--- -2.96050000E+04 -2.96050000E+04
st_testph40.08000.0200--- -8.05000000E+01 -8.05000000E+01
tltr1696.35001662.79001.020 4.80666667E+01 4.80666667E+01

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Solvers perform the same - 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)
st_miqp40.10000.0000--- -3.09282488E+03 -4.57400000E+03

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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)
4stufen2.78002.49001.116 1.16329734E+05 1.16340860E+05
csched1a0.28000.0200--- -3.02885046E+04 -3.02797471E+04
csched241.370029.80001.388 -1.66037846E+05 -1.65888736E+05
eg_disc2_s7.74006.21001.246 5.64950591E+00 5.93637221E+00
ex1265a4.92004.33001.136 1.03000000E+01 1.06000000E+01
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) Time (SBB-CONOPT-IPOPT) Ratio (SBB-IPOPT / SBB-CONOPT-IPOPT) Obj (SBB-IPOPT) Obj (SBB-CONOPT-IPOPT)
csched11.25001.01001.238 -3.06392578E+04 -3.06392578E+04
ex12230.21000.0400--- 4.57958240E+00 4.57958240E+00
ex1223b0.17000.0300--- 4.57958240E+00 4.57958240E+00
gkocis0.19000.0300--- -1.92309874E+00 -1.92309874E+00
m31.76001.17001.504 3.78000000E+01 3.78000000E+01
nous10.65000.34001.912 1.56707200E+00 1.56707200E+00
nous21.56001.37001.139 6.25967418E-01 6.25967412E-01
nvs040.15000.0200--- 7.20000000E-01 7.20000000E-01
nvs070.11000.08001.375 4.00000000E+00 4.00000000E+00
st_e140.19000.0400--- 4.57958240E+00 4.57958240E+00
st_e290.18000.0400--- -9.43470500E-01 -9.43470500E-01
st_e321.35000.96001.406 -1.43040728E+00 -1.43040728E+00
st_miqp10.14000.0100--- 2.81000000E+02 2.81000000E+02
st_miqp20.28000.0100--- 2.00000000E+00 2.00000000E+00
st_testgr10.29000.0300--- -1.27281000E+01 -1.27281000E+01
synthes10.12000.0100--- 6.00975891E+00 6.00975891E+00
var_con102.95001.90001.553 4.44213954E+02 4.44213954E+02
var_con53.64002.62001.389 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)
csched2a9.01005.43001.659 -1.64403509E+05 -1.65398701E+05

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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)
elf121.75000.4700259.043 1.91666667E-01 4.34666666E-01
eniplac3600.0600316.430011.377 -1.31598904E+05 -1.30344370E+05
ex12339.98000.710014.056 1.55010671E+05 1.55522462E+05
ex1265826.6400153.28005.393 1.03000000E+01 1.33000000E+01
gasnet5.22000.080065.250 6.99938156E+06 7.04532689E+06
lop97icx3356.6700218.290015.377 4.12786969E+03 4.18494489E+03
nuclear14a2.69001.33002.023 -1.12963353E+00 -1.12821323E+00
nuclear24a2.70001.32002.045 -1.12963353E+00 -1.12821323E+00
qap66.34006.200010.700 3.88214000E+05 3.95738000E+05
st_e353.86000.0100--- 6.48680769E+04 1.17178934E+05
st_testgr34.06000.0300--- -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)
batch1.64000.72002.278 2.85506508E+05 2.85506508E+05
batchdes0.30000.10003.000 1.67427657E+05 1.67427657E+05
deb100.96000.33002.909 2.09427812E+02 2.09427812E+02
deb652.190015.31003.409 2.01739305E+02 2.01739305E+02
deb72058.5700264.73007.776 1.16584559E+02 1.16584559E+02
deb83195.120075.260042.454 1.16584559E+02 1.16584559E+02
deb92015.490028.690070.251 1.16584559E+02 1.16584559E+02
du-opt552.470020.82002.520 8.07365758E+00 8.07365758E+00
enpro481968.93003.3200593.051 1.87277259E+05 1.87277259E+05
enpro561912.0700116.060016.475 2.63428301E+05 2.63428301E+05
ex12240.19000.05003.800 -9.43470500E-01 -9.43470500E-01
ex12250.17000.05003.400 3.10000000E+01 3.10000000E+01
ex124350.38000.1300387.538 8.34025064E+04 8.34025064E+04
ex1244254.83000.18001415.722 8.20429052E+04 8.20429052E+04
ex1252278.99003.160088.288 1.28893741E+05 1.28893741E+05
ex1263a32.26008.17003.949 1.96000000E+01 1.96000000E+01
ex1266559.33009.150061.129 1.63000000E+01 1.63000000E+01
ex1266a18.36000.960019.125 1.63000000E+01 1.63000000E+01
ex31.05000.22004.773 6.80097441E+01 6.80097441E+01
ex414.03002.10006.681 -8.06413616E+00 -8.06413616E+00
fac11.87000.0200--- 1.60912612E+08 1.60912612E+08
fac249.53000.2800176.893 3.31837498E+08 3.31837498E+08
fac37.17000.190037.737 3.19823098E+07 3.19823098E+07
feedtray2450.200075.66005.950 0.00000000E+00 0.00000000E+00
fuel0.19000.05003.800 8.56611896E+03 8.56611896E+03
gear32.01000.570056.158 1.54504505E-10 0.00000000E+00
gear2286.330016.860016.983 2.46275507E-08 9.74565345E-10
gear3224.41000.6700334.940 9.92157960E-10 0.00000000E+00
gear4364.540038.04009.583 1.64342847E+00 1.64342847E+00
johnall14.53002.05007.088 -2.24730162E+02 -2.24730162E+02
minlphix54.82001.140048.088 3.16692695E+02 3.16692695E+02
hmittelman22.84007.07003.231 1.30000000E+01 1.30000000E+01
nvs010.16000.07002.286 1.24696688E+01 1.24696688E+01
nvs020.55000.10005.500 5.96418452E+00 5.96418452E+00
nvs030.15000.05003.000 1.60000000E+01 1.60000000E+01
nvs053.48000.070049.714 5.47093411E+00 5.47093411E+00
ortez7.02000.620011.323 -9.53203905E+03 -9.53203905E+03
parallel2.34000.39006.000 9.24295551E+02 9.24295551E+02
procsel1.07000.0400--- -1.92309874E+00 -1.92309874E+00
pump0.44000.07006.286 1.34263585E+05 1.34263585E+05
ravem144.86002.820051.369 2.69590219E+05 2.69590219E+05
ravempb51.32001.540033.325 2.69590219E+05 2.69590219E+05
risk2b32.02000.370086.541 -5.57361685E+01 -5.57361685E+01
risk2bpb20.71000.430048.163 -5.57361685E+01 -5.57361685E+01
spectra221.84001.270017.197 1.39783226E+01 1.39783059E+01
spring1.60000.60002.667 8.46245666E-01 8.46245666E-01
st_e310.78000.10007.800 -2.00000000E+00 -2.00000000E+00
st_test50.64000.0400--- -1.10000000E+02 -1.10000000E+02
st_test60.73000.11006.636 4.71000000E+02 4.71000000E+02
synheat12.80001.33009.624 1.54997335E+05 1.54997335E+05
synthes20.42000.08005.250 7.30353125E+01 7.30353125E+01
synthes31.31000.16008.188 6.80097405E+01 6.80097405E+01
tloss30.72002.110014.559 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_133603.21005.3100678.571 -1.10372429E+05 -1.15544840E+05
contvar100.240017.91005.597 8.13745124E+05 8.09149827E+05
du-opt3.97001.73002.295 3.56468638E+00 3.56108965E+00
enpro48pb3600.80003.15001143.111 1.92284621E+05 1.87277259E+05
enpro56pb3600.0000126.410028.479 2.63703235E+05 2.63428301E+05
ex1252a3600.05002.96001216.233 1.43555088E+05 1.28893741E+05
ex12631591.9900129.250012.317 2.26000000E+01 1.96000000E+01
ex12641863.4400222.24008.385 9.60000000E+00 8.60000000E+00
ex3pb3600.01000.260013846.192 9.58848500E+01 6.80097441E+01
qapw1430.60003.7300383.539 3.91288000E+05 3.88870000E+05
space252368.100090.110026.280 4.87074333E+02 4.84328644E+02
util5.19000.060086.500 1.00856681E+03 9.99897308E+02
water43600.2100282.740012.733 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
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
water3fail 3600.0100 -- 0.00000000E+00 1.02878682E+03
watersfail 1099.9200 -- 0.00000000E+00 1.74336673E+03
watersbpfail 452.3500 -- 0.00000000E+00 9.07016996E+02
watersym1fail 3600.0000 -- 0.00000000E+00 1.17873854E+03
watersym2fail 3511.3700 -- 0.00000000E+00 1.19396310E+03

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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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