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 :5-SBB-5.trc
Solvers used : SBB-IPOPT-WS
SBB-IPOPT-PL0
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-IPOPT-PL0 better
Solver SBB-IPOPT-WS infinitely faster : 1 1 - -
Solver SBB-IPOPT-WS much faster : 14 3 10 1
Solver SBB-IPOPT-WS faster : 33 2 27 4
Solvers perform the same : 52 2 48 2
Solver SBB-IPOPT-PL0 faster : 27 - 24 3
Solver SBB-IPOPT-PL0 much faster : 13 - 10 3
Solver SBB-IPOPT-PL0 infinitely faster : 4 - - 4
Both solvers failed to solve optimally : 23 - 23 -
Total models: : 167814217




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-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
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-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
csched1a0.13000.28000.464 -3.04301768E+04 -3.02885046E+04
ex1264419.96001863.44000.225 8.60002238E+00 9.60000000E+00
ex3pb1.88003600.01000.001 6.80097441E+01 9.58848500E+01

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

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
contvar40.7200100.24000.406 8.13745124E+05 8.13745124E+05
eg_disc2_s2.64007.74000.341 5.64950591E+00 5.64950591E+00
ex1252108.7000278.99000.390 1.28893741E+05 1.28893741E+05
fac10.42001.87000.225 1.60912612E+08 1.60912612E+08
gear234.7100286.33000.121 9.92157958E-10 2.46275507E-08
gear330.5100224.41000.136 9.92157958E-10 9.92157960E-10
minlphix15.160054.82000.277 3.16692695E+02 3.16692695E+02
procsel0.47001.07000.439 -1.92309874E+00 -1.92309874E+00
risk2bpb5.350020.71000.258 -5.57361685E+01 -5.57361685E+01
spectra25.880021.84000.269 1.39783059E+01 1.39783226E+01

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Solver SBB-IPOPT-WS much faster - Obj of SBB-IPOPT-PL0 better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
nuclearva1.730013.61000.127 -1.00739866E+00 -1.01123773E+00

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

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
enpro48pb2518.24003600.80000.699 1.87277259E+05 1.92284621E+05
st_miqp40.06000.10000.600 -4.57400000E+03 -3.09282488E+03

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

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
csched10.87001.25000.696 -3.06392578E+04 -3.06392578E+04
csched2a7.93009.01000.880 -1.64403509E+05 -1.64403509E+05
deb71406.10002058.57000.683 1.16584560E+02 1.16584559E+02
deb82502.29003195.12000.783 1.16584559E+02 1.16584559E+02
deb91564.53002015.49000.776 1.16584559E+02 1.16584559E+02
du-opt546.440052.47000.885 8.07365758E+00 8.07365758E+00
du-opt2.76003.97000.695 3.56468638E+00 3.56468638E+00
eg_disc_s4.70008.07000.582 5.76053962E+00 5.76053962E+00
elf78.6300121.75000.646 1.91666667E-01 1.91666667E-01
ex12230.18000.21000.857 4.57958240E+00 4.57958240E+00
ex12240.16000.19000.842 -9.43470500E-01 -9.43470500E-01
ex1244209.3400254.83000.821 8.20429052E+04 8.20429052E+04
ex1263a28.270032.26000.876 1.96000000E+01 1.96000000E+01
ex1266447.6400559.33000.800 1.63000000E+01 1.63000000E+01
ex1266a15.510018.36000.845 1.63000000E+01 1.63000000E+01
feedtray0.05000.06000.833 -1.34059977E+01 -1.34059977E+01
nous21.09001.56000.699 6.25967428E-01 6.25967418E-01
nvs030.13000.15000.867 1.60000000E+01 1.60000000E+01
nvs040.13000.15000.867 7.20000000E-01 7.20000000E-01
ortez6.27007.02000.893 -9.53203905E+03 -9.53203905E+03
spring0.98001.60000.612 8.46245666E-01 8.46245666E-01
st_e352.72003.86000.705 6.48680768E+04 6.48680769E+04
st_test80.05000.09000.556 -2.96050000E+04 -2.96050000E+04
st_testgr33.15004.06000.776 -2.05274000E+01 -2.05274000E+01
st_testph40.07000.08000.875 -8.05000000E+01 -8.05000000E+01
synthes10.10000.12000.833 6.00975891E+00 6.00975891E+00
tloss19.530030.72000.636 1.63000000E+01 1.63000000E+01

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Solver SBB-IPOPT-WS faster - Obj of SBB-IPOPT-PL0 better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
eg_int_s7.130010.31000.692 7.88724302E+00 6.45310316E+00
lop97icx2990.34003356.67000.891 4.17412307E+03 4.12786969E+03
qapw931.22001430.60000.651 3.92610000E+05 3.91288000E+05
waterx1.58002.22000.712 1.00387666E+03 9.87003428E+02

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Solvers perform the same - Obj of SBB-IPOPT-WS better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
cecil_133600.80003603.21000.999 -1.13308833E+05 -1.10372429E+05
m6248.8800255.33000.975 8.22568769E+01 1.06256877E+02

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Solvers perform the same - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
batch1.76001.64001.073 2.85506508E+05 2.85506508E+05
batchdes0.28000.30000.933 1.67427657E+05 1.67427657E+05
beuster4.96004.58001.083 1.19870218E+05 1.19870218E+05
eniplac3600.32003600.06001.000 -1.31598904E+05 -1.31598904E+05
enpro481817.71001968.93000.923 1.87277259E+05 1.87277259E+05
ex12210.01000.0100--- 7.66718007E+00 7.66718007E+00
ex12220.06000.06001.000 1.07654308E+00 1.07654308E+00
ex1223b0.16000.17000.941 4.57958240E+00 4.57958240E+00
ex12250.18000.17001.059 3.10000000E+01 3.10000000E+01
ex12260.02000.0200--- -1.70000000E+01 -1.70000000E+01
ex124352.810050.38001.048 8.34025065E+04 8.34025064E+04
ex1252a3600.14003600.05001.000 1.43555088E+05 1.43555088E+05
ex1265827.9800826.64001.002 1.03000000E+01 1.03000000E+01
fuel0.21000.19001.105 8.56611896E+03 8.56611896E+03
gbd0.03000.0400--- 2.20000000E+00 2.20000000E+00
johnall15.870014.53001.092 -2.24730162E+02 -2.24730162E+02
meanvarx0.27000.27001.000 1.44040623E+01 1.44040623E+01
nvs010.16000.16001.000 1.24696688E+01 1.24696688E+01
nvs020.58000.55001.055 5.96418452E+00 5.96418452E+00
nvs053.52003.48001.011 5.47093411E+00 5.47093411E+00
nvs060.07000.07001.000 1.77031250E+00 1.77031250E+00
nvs070.11000.11001.000 4.00000000E+00 4.00000000E+00
nvs090.01000.0100--- -4.31343369E+01 -4.31343369E+01
nvs100.05000.05001.000 -3.10800000E+02 -3.10800000E+02
oaer0.08000.08001.000 -1.92309848E+00 -1.92309846E+00
prob020.04000.0400--- 1.12235000E+05 1.12235000E+05
prob030.05000.05001.000 1.00000000E+01 1.00000000E+01
prob100.10000.10001.000 3.44550379E+00 3.44550379E+00
sep10.10000.11000.909 -5.10080984E+02 -5.10080984E+02
st_e130.01000.0100--- 2.00000000E+00 2.00000000E+00
st_e140.18000.19000.947 4.57958240E+00 4.57958240E+00
st_e150.01000.0200--- 7.66718007E+00 7.66718007E+00
st_e270.00000.0100--- 2.00000000E+00 2.00000000E+00
st_e290.18000.18001.000 -9.43470500E-01 -9.43470500E-01
st_e321.31001.35000.970 -1.43040728E+00 -1.43040728E+00
st_e360.11000.12000.917 -2.46000000E+02 -2.46000000E+02
st_e380.01000.0100--- 7.19772715E+03 7.19772715E+03
st_miqp10.13000.14000.929 2.81000000E+02 2.81000000E+02
st_miqp20.27000.28000.964 2.00000000E+00 2.00000000E+00
st_miqp30.03000.0200--- -6.00000000E+00 -6.00000000E+00
st_miqp50.02000.0200--- -3.33888889E+02 -3.33888889E+02
st_test50.71000.64001.109 -1.10000000E+02 -1.10000000E+02
st_test60.74000.73001.014 4.71000000E+02 4.71000000E+02
st_testgr10.28000.29000.966 -1.27281000E+01 -1.27281000E+01
var_con102.75002.95000.932 4.44213954E+02 4.44213954E+02
var_con53.71003.64001.019 2.78144894E+02 2.78144894E+02
windfac0.18000.18001.000 2.54487298E-01 2.54487298E-01
tltr1534.01001696.35000.904 4.80666667E+01 4.80666667E+01

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Solvers perform the same - Obj of SBB-IPOPT-PL0 better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
enpro56pb3600.18003600.00001.000 2.66376497E+05 2.63703235E+05
ex12631630.28001591.99001.024 3.36000000E+01 2.26000000E+01

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Solver SBB-IPOPT-PL0 faster - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
4stufen3.17002.78001.140 1.16329734E+05 1.16329734E+05
alan0.18000.09002.000 2.92500000E+00 2.92500000E+00
deb101.11000.96001.156 2.09427812E+02 2.09427812E+02
deb678.020052.19001.495 2.01739305E+02 2.01739305E+02
ex1223a0.09000.07001.286 4.57958240E+00 4.57958240E+00
ex123314.20009.98001.423 1.55010671E+05 1.55010671E+05
ex31.33001.05001.267 6.80097441E+01 6.80097441E+01
feedtray2502.7100450.20001.117 1.72344169E-10 0.00000000E+00
gasnet8.02005.22001.536 6.99938156E+06 6.99938156E+06
gastrans1.06000.86001.233 8.90858400E+01 8.90858400E+01
gear4473.9700364.54001.300 1.64342847E+00 1.64342847E+00
m31.99001.76001.131 3.78000000E+01 3.78000000E+01
nous10.90000.65001.385 1.56707200E+00 1.56707200E+00
nuclear14a3.03002.69001.126 -1.12963353E+00 -1.12963353E+00
nuclear24a3.03002.70001.122 -1.12963353E+00 -1.12963353E+00
nvs080.08000.07001.143 2.34497273E+01 2.34497273E+01
parallel3.75002.34001.603 9.24295558E+02 9.24295551E+02
risk2b37.990032.02001.186 -5.57361685E+01 -5.57361685E+01
space252943.90002368.10001.243 4.87074333E+02 4.87074333E+02
space25a13.62008.80001.548 4.87074333E+02 4.87074333E+02
st_e311.46000.78001.872 -2.00000000E+00 -2.00000000E+00
stockcycle49.290030.59001.611 1.19948688E+05 1.19948688E+05
synheat18.080012.80001.412 1.54997335E+05 1.54997335E+05
synthes20.66000.42001.571 7.30353126E+01 7.30353125E+01

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Solver SBB-IPOPT-PL0 faster - Obj of SBB-IPOPT-PL0 better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
enpro563600.00001912.07001.883 2.63703235E+05 2.63428301E+05
ex1265a7.42004.92001.508 1.06000000E+01 1.03000000E+01
m7357.2400266.15001.342 1.44505315E+02 1.18756877E+02

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Solver SBB-IPOPT-PL0 much faster - Obj same for both solvers:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
csched2168.120041.37004.064 -1.66037846E+05 -1.66037846E+05
ex1264a45.670011.29004.045 8.60000000E+00 8.60000000E+00
fac318.32007.17002.555 3.19823098E+07 3.19823098E+07
gear217.790032.01006.804 8.88761437E-10 1.54504505E-10
gkocis0.51000.19002.684 -1.92309874E+00 -1.92309874E+00
hmittelman1087.390022.840047.609 1.30000000E+01 1.30000000E+01
pump4.72000.440010.727 1.34263585E+05 1.34263585E+05
ravempb175.140051.32003.413 2.69590219E+05 2.69590219E+05
synthes33.43001.31002.618 6.80097407E+01 6.80097405E+01
util10.52005.19002.027 1.00856681E+03 1.00856681E+03

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Solver SBB-IPOPT-PL0 much faster - Obj of SBB-IPOPT-PL0 better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
eg_all_s135.810050.71002.678 7.95879555E+00 7.92018223E+00
ex43600.000014.0300256.593 2.71369187E+04 -8.06413616E+00
ravem3600.7900144.860024.857 2.83851860E+05 2.69590219E+05

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Solver SBB-IPOPT-PL0 infinitely faster - Obj of SBB-IPOPT-PL0 better:

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
fac2fail 49.5300 -- 0.00000000E+00 3.31837498E+08
mbtdfail 1514.3400 -- 0.00000000E+00 4.66666000E+00
qapfail 66.3400 -- 0.00000000E+00 3.88214000E+05
water4fail 3600.2100 -- 0.00000000E+00 9.22528005E+02

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

Modelname Time (SBB-IPOPT-WS) Time (SBB-IPOPT-PL0) Ratio (SBB-IPOPT-WS / SBB-IPOPT-PL0) Obj (SBB-IPOPT-WS) Obj (SBB-IPOPT-PL0)
blendgapunbounded unbounded -- -1.91364478E+04 -1.91364478E+04
dosemin2dfail fail -- 0.00000000E+00 0.00000000E+00
fuzzyfail fail -- -5.12740304E-01 -5.12740304E-01
fo7fail fail -- 0.00000000E+00 0.00000000E+00
hdafail fail -- 0.00000000E+00 0.00000000E+00
meanvarxscfail fail -- 0.00000000E+00 0.00000000E+00
o7fail fail -- 0.00000000E+00 0.00000000E+00
oil2fail fail -- -7.33353049E-01 -7.33353049E-01
pb302035fail fail -- 0.00000000E+00 0.00000000E+00
pb302095fail fail -- 0.00000000E+00 0.00000000E+00
pb351535fail 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
water3fail fail -- 0.00000000E+00 0.00000000E+00
watersym1fail fail -- 0.00000000E+00 0.00000000E+00
watersym2fail fail -- 0.00000000E+00 0.00000000E+00
tls6fail fail -- 0.00000000E+00 0.00000000E+00
watersfail fail -- 0.00000000E+00 0.00000000E+00
watersbpfail fail -- 0.00000000E+00 0.00000000E+00

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