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 :3-SBB-3.trc
Solvers used : SBB-IPOPT
SBB-IPOPT-WS
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-IPOPT-WS better
Solver SBB-IPOPT infinitely faster : 2 2 - -
Solver SBB-IPOPT much faster : 14 3 11 -
Solver SBB-IPOPT faster : 25 3 22 -
Solvers perform the same : 52 2 48 2
Solver SBB-IPOPT-WS faster : 33 4 29 -
Solver SBB-IPOPT-WS much faster : 15 1 10 4
Solver SBB-IPOPT-WS infinitely faster : 1 - - 1
Both solvers failed to solve optimally : 25 - 25 -
Total models: : 167151457




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 infinitely faster - Obj of SBB-IPOPT better:

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
fac249.6800fail -- 3.31837498E+08 0.00000000E+00
water43600.1000fail -- 9.22528005E+02 0.00000000E+00

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
eg_all_s49.3100135.81000.363 7.92018223E+00 7.95879555E+00
ex414.45003600.00000.004 -8.06413616E+00 2.71369187E+04
ravem145.22003600.79000.040 2.69590219E+05 2.83851860E+05

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
alan0.08000.18000.444 2.92500000E+00 2.92500000E+00
csched241.6900168.12000.248 -1.66037846E+05 -1.66037846E+05
ex1264a11.550045.67000.253 8.60000000E+00 8.60000000E+00
fac37.290018.32000.398 3.19823098E+07 3.19823098E+07
gear32.8400217.79000.151 1.54504505E-10 8.88761437E-10
gkocis0.23000.51000.451 -1.92309874E+00 -1.92309874E+00
hmittelman23.61001087.39000.022 1.30000000E+01 1.30000000E+01
pump0.45004.72000.095 1.34263585E+05 1.34263585E+05
ravempb51.5100175.14000.294 2.69590219E+05 2.69590219E+05
synthes31.30003.43000.379 6.80097405E+01 6.80097407E+01
util5.220010.52000.496 1.00856681E+03 1.00856681E+03

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
enpro561915.17003600.00000.532 2.63428301E+05 2.63703235E+05
ex1265a5.01007.42000.675 1.03000000E+01 1.06000000E+01
m7270.0900357.24000.756 1.18756877E+02 1.44505315E+02

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
deb100.97001.11000.874 2.09427812E+02 2.09427812E+02
deb652.430078.02000.672 2.01739305E+02 2.01739305E+02
enpro48pb1622.19002518.24000.644 1.87277259E+05 1.87277259E+05
ex1223a0.08000.09000.889 4.57958240E+00 4.57958240E+00
ex12250.15000.18000.833 3.10000000E+01 3.10000000E+01
ex123310.200014.20000.718 1.55010671E+05 1.55010671E+05
ex31.10001.33000.827 6.80097441E+01 6.80097441E+01
gasnet5.31008.02000.662 6.99938156E+06 6.99938156E+06
gastrans0.92001.06000.868 8.90858400E+01 8.90858400E+01
gear4374.5600473.97000.790 1.64342847E+00 1.64342847E+00
nous10.65000.90000.722 1.56707200E+00 1.56707200E+00
nuclear14a2.70003.03000.891 -1.12963353E+00 -1.12963353E+00
nuclear24a2.69003.03000.888 -1.12963353E+00 -1.12963353E+00
nvs010.14000.16000.875 1.24696688E+01 1.24696688E+01
parallel2.38003.75000.635 9.24295551E+02 9.24295558E+02
risk2b32.090037.99000.845 -5.57361685E+01 -5.57361685E+01
space252369.23002943.90000.805 4.87074333E+02 4.87074333E+02
space25a9.030013.62000.663 4.87074333E+02 4.87074333E+02
st_e310.80001.46000.548 -2.00000000E+00 -2.00000000E+00
stockcycle31.370049.29000.636 1.19948688E+05 1.19948688E+05
synheat13.270018.08000.734 1.54997335E+05 1.54997335E+05
synthes20.45000.66000.682 7.30353125E+01 7.30353126E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
enpro56pb3600.00003600.18001.000 2.63703235E+05 2.66376497E+05
ex12631684.87001630.28001.033 2.26000000E+01 3.36000000E+01

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Solvers perform the same - Obj same for both solvers:

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
4stufen2.87003.17000.905 1.16329734E+05 1.16329734E+05
batch1.72001.76000.977 2.85506508E+05 2.85506508E+05
batchdes0.30000.28001.071 1.67427657E+05 1.67427657E+05
beuster4.86004.96000.980 1.19870218E+05 1.19870218E+05
eniplac3600.03003600.32001.000 -1.31598904E+05 -1.31598904E+05
enpro481969.37001817.71001.083 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
ex1223b0.17000.16001.063 4.57958240E+00 4.57958240E+00
ex12260.02000.0200--- -1.70000000E+01 -1.70000000E+01
ex124350.620052.81000.959 8.34025064E+04 8.34025065E+04
ex1252a3600.02003600.14001.000 1.43555088E+05 1.43555088E+05
ex1265842.1400827.98001.017 1.03000000E+01 1.03000000E+01
feedtray2454.1900502.71000.903 0.00000000E+00 1.72344169E-10
fuel0.21000.21001.000 8.56611896E+03 8.56611896E+03
gbd0.04000.0300--- 2.20000000E+00 2.20000000E+00
johnall14.350015.87000.904 -2.24730162E+02 -2.24730162E+02
m31.90001.99000.955 3.78000000E+01 3.78000000E+01
meanvarx0.28000.27001.037 1.44040623E+01 1.44040623E+01
nvs020.60000.58001.034 5.96418452E+00 5.96418452E+00
nvs053.55003.52001.009 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
nvs080.08000.08001.000 2.34497273E+01 2.34497273E+01
nvs090.01000.0100--- -4.31343369E+01 -4.31343369E+01
oaer0.08000.08001.000 -1.92309846E+00 -1.92309848E+00
prob020.04000.0400--- 1.12235000E+05 1.12235000E+05
prob030.05000.05001.000 1.00000000E+01 1.00000000E+01
prob100.11000.10001.100 3.44550379E+00 3.44550379E+00
sep10.11000.10001.100 -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_e290.18000.18001.000 -9.43470500E-01 -9.43470500E-01
st_e321.42001.31001.084 -1.43040728E+00 -1.43040728E+00
st_e360.12000.11001.091 -2.46000000E+02 -2.46000000E+02
st_e380.01000.0100--- 7.19772715E+03 7.19772715E+03
st_miqp10.13000.13001.000 2.81000000E+02 2.81000000E+02
st_miqp20.30000.27001.111 2.00000000E+00 2.00000000E+00
st_miqp30.02000.0300--- -6.00000000E+00 -6.00000000E+00
st_miqp50.02000.0200--- -3.33888889E+02 -3.33888889E+02
st_test50.71000.71001.000 -1.10000000E+02 -1.10000000E+02
st_test60.77000.74001.041 4.71000000E+02 4.71000000E+02
st_testgr10.30000.28001.071 -1.27281000E+01 -1.27281000E+01
st_testph40.07000.07001.000 -8.05000000E+01 -8.05000000E+01
var_con102.97002.75001.080 4.44213954E+02 4.44213954E+02
var_con53.69003.71000.995 2.78144894E+02 2.78144894E+02
windfac0.18000.18001.000 2.54487298E-01 2.54487298E-01

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
cecil_133623.65003600.80001.006 -1.10372429E+05 -1.13308833E+05
m6261.6500248.88001.051 1.06256877E+02 8.22568769E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
eg_int_s10.01007.13001.404 6.45310316E+00 7.88724302E+00
lop97icx3395.54002990.34001.136 4.12786969E+03 4.17412307E+03
qapw1426.1800931.22001.532 3.91288000E+05 3.92610000E+05
waterx2.27001.58001.437 9.87003428E+02 1.00387666E+03

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
csched11.32000.87001.517 -3.06392578E+04 -3.06392578E+04
csched2a9.08007.93001.145 -1.64403509E+05 -1.64403509E+05
deb72057.97001406.10001.464 1.16584559E+02 1.16584560E+02
deb83194.14002502.29001.276 1.16584559E+02 1.16584559E+02
deb92015.16001564.53001.288 1.16584559E+02 1.16584559E+02
du-opt552.330046.44001.127 8.07365758E+00 8.07365758E+00
du-opt3.92002.76001.420 3.56468638E+00 3.56468638E+00
eg_disc_s7.82004.70001.664 5.76053962E+00 5.76053962E+00
elf125.450078.63001.595 1.91666667E-01 1.91666667E-01
ex12230.22000.18001.222 4.57958240E+00 4.57958240E+00
ex12240.18000.16001.125 -9.43470500E-01 -9.43470500E-01
ex1244255.5100209.34001.221 8.20429052E+04 8.20429052E+04
ex1263a35.800028.27001.266 1.96000000E+01 1.96000000E+01
ex1266565.8500447.64001.264 1.63000000E+01 1.63000000E+01
ex1266a18.970015.51001.223 1.63000000E+01 1.63000000E+01
feedtray0.06000.05001.200 -1.34059977E+01 -1.34059977E+01
nous21.59001.09001.459 6.25967418E-01 6.25967428E-01
nvs030.15000.13001.154 1.60000000E+01 1.60000000E+01
nvs040.16000.13001.231 7.20000000E-01 7.20000000E-01
nvs100.06000.05001.200 -3.10800000E+02 -3.10800000E+02
ortez7.21006.27001.150 -9.53203905E+03 -9.53203905E+03
spring1.65000.98001.684 8.46245666E-01 8.46245666E-01
st_e140.20000.18001.111 4.57958240E+00 4.57958240E+00
st_e354.00002.72001.471 6.48680769E+04 6.48680768E+04
st_test80.07000.05001.400 -2.96050000E+04 -2.96050000E+04
st_testgr34.19003.15001.330 -2.05274000E+01 -2.05274000E+01
synthes10.12000.10001.200 6.00975891E+00 6.00975891E+00
tloss31.630019.53001.620 1.63000000E+01 1.63000000E+01
tltr1786.96001534.01001.165 4.80666667E+01 4.80666667E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
nuclearva13.63001.73007.879 -1.01123773E+00 -1.00739866E+00

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
contvar100.420040.72002.466 8.13745124E+05 8.13745124E+05
eg_disc2_s7.51002.64002.845 5.64950591E+00 5.64950591E+00
ex1252281.9200108.70002.594 1.28893741E+05 1.28893741E+05
fac11.88000.42004.476 1.60912612E+08 1.60912612E+08
gear2295.130034.71008.503 2.46275507E-08 9.92157958E-10
gear3235.390030.51007.715 9.92157960E-10 9.92157958E-10
minlphix54.920015.16003.623 3.16692695E+02 3.16692695E+02
procsel1.09000.47002.319 -1.92309874E+00 -1.92309874E+00
risk2bpb20.83005.35003.893 -5.57361685E+01 -5.57361685E+01
spectra221.97005.88003.736 1.39783226E+01 1.39783059E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
csched1a0.27000.13002.077 -3.02885046E+04 -3.04301768E+04
ex12641929.5000419.96004.594 9.60000000E+00 8.60002238E+00
ex3pb3600.11001.88001914.952 9.58848500E+01 6.80097441E+01
st_miqp40.13000.06002.167 -3.09282488E+03 -4.57400000E+03

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
tln6fail 202.9100 -- 0.00000000E+00 2.47000000E+01

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

Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT / SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS)
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
mbtdfail 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
qapfail 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
tls6fail fail -- 0.00000000E+00 0.00000000E+00
water3fail fail -- 0.00000000E+00 0.00000000E+00
watersym2fail fail -- 0.00000000E+00 0.00000000E+00
watersym1fail fail -- 0.00000000E+00 0.00000000E+00
tls7fail 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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