Resource Times:

Date / Time: 09/01/07 15:37:00


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 :1-SBB-1.trc
Tracefile 2 :4-SBB-4.trc
Solvers used : SBB-CONOPT
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-CONOPT better Obj same Obj SBB-CONOPT_IPOPT better
Solver SBB-CONOPT infinitely faster : 2 2 - -
Solver SBB-CONOPT much faster : 35 5 29 1
Solver SBB-CONOPT faster : 17 - 17 -
Solvers perform the same : 88 - 88 -
Solver SBB-CONOPT_IPOPT faster : 7 - 7 -
Solver SBB-CONOPT_IPOPT much faster :- - - -
Solver SBB-CONOPT_IPOPT infinitely faster : 8 - - 8
Both solvers failed to solve optimally : 10 - 10 -
Total models: : 16771519




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:

Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
hda10.1400fail -- -5.59804813E+03 0.00000000E+00
tln635.1900fail -- 1.63000000E+01 0.00000000E+00

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
beuster86.40003600.00000.024 1.16431316E+05 1.24839343E+05
ex12651.5300153.28000.010 1.13000000E+01 1.33000000E+01
water3111.88003600.01000.031 9.07016996E+02 1.02878682E+03
watersym224.78003511.37000.007 9.51408087E+02 1.19396310E+03
watersym197.60003600.00000.027 9.13775733E+02 1.17873854E+03

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
batch0.23000.72000.319 2.85506508E+05 2.85506508E+05
deb66.900015.31000.451 2.01739305E+02 2.01739305E+02
dosemin2d666.97003600.03000.185 1.73980583E+02 1.73980583E+02
eg_all_s16.4400578.23000.028 7.92018223E+00 7.92018223E+00
eniplac12.8700316.43000.041 -1.30344370E+05 -1.30344370E+05
enpro5631.5100116.06000.271 2.63428301E+05 2.63428301E+05
enpro56pb22.4800126.41000.178 2.63428301E+05 2.63428301E+05
ex12521.30003.16000.411 1.28893741E+05 1.28893741E+05
ex1252a0.75002.96000.253 1.28893741E+05 1.28893741E+05
ex126329.4400129.25000.228 1.96000000E+01 1.96000000E+01
ex1263a3.60008.17000.441 1.96000000E+01 1.96000000E+01
ex126440.3000222.24000.181 8.60000000E+00 8.60000000E+00
ex1264a5.080018.81000.270 8.60000000E+00 8.60000000E+00
ex1266a0.45000.96000.469 1.63000000E+01 1.63000000E+01
gastrans0.55008.10000.068 8.90858400E+01 8.90858400E+01
m30.40001.17000.342 3.78000000E+01 3.78000000E+01
minlphix0.11001.14000.096 3.16692695E+02 3.16692695E+02
hmittelman0.51007.07000.072 1.30000000E+01 1.30000000E+01
nous20.03001.3700--- 6.25967412E-01 6.25967412E-01
nuclearva6.020036.25000.166 -1.01012730E+00 -1.01012730E+00
ortez0.15000.62000.242 -9.53203905E+03 -9.53203905E+03
ravem0.88002.82000.312 2.69590219E+05 2.69590219E+05
ravempb0.60001.54000.390 2.69590219E+05 2.69590219E+05
spring0.07000.60000.117 8.46245666E-01 8.46245666E-01
st_e320.14000.96000.146 -1.43040728E+00 -1.43040728E+00
tloss0.48002.11000.227 1.63000000E+01 1.63000000E+01
water451.3900282.74000.182 9.13157068E+02 9.13157068E+02
waters166.99001099.92000.152 1.74336673E+03 1.74336673E+03
watersbp124.8700452.35000.276 9.07016996E+02 9.07016996E+02

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
ex1265a0.11004.33000.025 1.51000000E+01 1.06000000E+01

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
csched10.70001.01000.693 -3.06392578E+04 -3.06392578E+04
deb100.23000.33000.697 2.09427812E+02 2.09427812E+02
deb922.760028.69000.793 1.16584559E+02 1.16584559E+02
ex12665.33009.15000.583 1.63000000E+01 1.63000000E+01
ex30.18000.22000.818 6.80097441E+01 6.80097441E+01
fac20.21000.28000.750 3.31837498E+08 3.31837498E+08
gear214.950016.86000.887 9.74565345E-10 9.74565345E-10
gear433.520038.04000.881 1.64342847E+00 1.64342847E+00
m6196.7700351.48000.560 1.29824936E+02 1.29824936E+02
m7223.4600425.16000.526 1.23964378E+02 1.23964378E+02
nous10.03000.3400--- 1.56707200E+00 1.56707200E+00
nvs050.05000.07000.714 5.47093411E+00 5.47093411E+00
space25a9.590012.95000.741 4.84328644E+02 4.84328644E+02
st_test60.09000.11000.818 4.71000000E+02 4.71000000E+02
var_con101.51001.90000.795 4.44213954E+02 4.44213954E+02
var_con51.78002.62000.679 2.78144894E+02 2.78144894E+02
waterx112.8200126.82000.890 9.38862849E+02 9.38862849E+02

Back to top



Back to top

Solvers perform the same - Obj same for both solvers:

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
4stufen2.40002.49000.964 1.16340860E+05 1.16340860E+05
alan0.01000.0400--- 2.92500000E+00 2.92500000E+00
batchdes0.04000.1000--- 1.67427657E+05 1.67427657E+05
blendgap0.03000.0300--- 0.00000000E+00 0.00000000E+00
cecil_135.30005.31000.998 -1.15544840E+05 -1.15544840E+05
contvar17.840017.91000.996 8.09149827E+05 8.09149827E+05
csched1a0.04000.0200--- -3.02797471E+04 -3.02797471E+04
csched229.920029.80001.004 -1.65888736E+05 -1.65888736E+05
csched2a5.33005.43000.982 -1.65398701E+05 -1.65398701E+05
du-opt520.820020.82001.000 8.07365758E+00 8.07365758E+00
du-opt1.74001.73001.006 3.56108965E+00 3.56108965E+00
eg_disc_s13.810013.77001.003 5.76053962E+00 5.76053962E+00
eg_disc2_s6.24006.21001.005 5.93637221E+00 5.93637221E+00
eg_int_s23.110023.45000.986 6.45310316E+00 6.45310316E+00
enpro483.39003.32001.021 1.87277259E+05 1.87277259E+05
enpro48pb3.18003.15001.010 1.87277259E+05 1.87277259E+05
ex12210.01000.0100--- 7.66718007E+00 7.66718007E+00
ex12220.01000.0300--- 1.07654308E+00 1.07654308E+00
ex12230.06000.0400--- 4.57958240E+00 4.57958240E+00
ex1223a0.01000.0100--- 4.57958240E+00 4.57958240E+00
ex1223b0.00000.0300--- 4.57958240E+00 4.57958240E+00
ex12250.02000.0500--- 3.10000000E+01 3.10000000E+01
ex12260.00000.0000--- -1.70000000E+01 -1.70000000E+01
ex12330.67000.71000.944 1.55522462E+05 1.55522462E+05
ex12430.14000.13001.077 8.34025064E+04 8.34025064E+04
ex12440.17000.18000.944 8.20429052E+04 8.20429052E+04
ex3pb0.24000.26000.923 6.80097441E+01 6.80097441E+01
ex42.17002.10001.033 -8.06413616E+00 -8.06413616E+00
fac10.01000.0200--- 1.60912612E+08 1.60912612E+08
feedtray0.03000.0300--- -1.34059977E+01 -1.34059977E+01
fuel0.01000.0500--- 8.56611896E+03 8.56611896E+03
fuzzy184.6600182.13001.014 -4.88877286E-01 -4.88877286E-01
gbd0.00000.0000--- 2.20000000E+00 2.20000000E+00
gear30.64000.67000.955 0.00000000E+00 0.00000000E+00
johnall1.96002.05000.956 -2.24730162E+02 -2.24730162E+02
gkocis0.03000.0300--- -1.92309874E+00 -1.92309874E+00
lop97icx218.6000218.29001.001 4.18494489E+03 4.18494489E+03
mbtd3600.32003600.35001.000 5.91666000E+00 5.91666000E+00
meanvarx0.02000.0100--- 1.44969830E+01 1.44969830E+01
meanvarxsc0.04000.0100--- 1.43692321E+01 1.43692321E+01
nuclear14a1.33001.33001.000 -1.12821323E+00 -1.12821323E+00
nuclear24a1.33001.32001.008 -1.12821323E+00 -1.12821323E+00
nvs010.01000.0700--- 1.24696688E+01 1.24696688E+01
nvs020.04000.1000--- 5.96418452E+00 5.96418452E+00
nvs030.02000.0500--- 1.60000000E+01 1.60000000E+01
nvs040.02000.0200--- 7.20000000E-01 7.20000000E-01
nvs060.00000.0100--- 1.77031250E+00 1.77031250E+00
nvs070.02000.0800--- 4.00000000E+00 4.00000000E+00
nvs080.04000.0300--- 2.34497273E+01 2.34497273E+01
nvs090.00000.0000--- -4.31343369E+01 -4.31343369E+01
nvs100.02000.0100--- -3.10800000E+02 -3.10800000E+02
oaer0.02000.0000--- -1.92309854E+00 -1.92309854E+00
oil20.45000.44001.023 -7.33260012E-01 -7.33260012E-01
parallel0.40000.39001.026 9.24295551E+02 9.24295551E+02
pb3020353600.48003600.50001.000 3.80440300E+06 3.80440300E+06
pb3515352345.68002349.09000.999 4.48528800E+06 4.48528800E+06
prob020.01000.0100--- 1.12235000E+05 1.12235000E+05
prob030.02000.0100--- 1.00000000E+01 1.00000000E+01
prob100.02000.0100--- 3.44550379E+00 3.44550379E+00
procsel0.03000.0400--- -1.92309874E+00 -1.92309874E+00
pump0.02000.0700--- 1.34263585E+05 1.34263585E+05
qap6.20006.20001.000 3.95738000E+05 3.95738000E+05
qapw3.67003.73000.984 3.88870000E+05 3.88870000E+05
risk2b0.39000.37001.054 -5.57361685E+01 -5.57361685E+01
risk2bpb0.42000.43000.977 -5.57361685E+01 -5.57361685E+01
sep10.01000.0100--- -5.10080984E+02 -5.10080984E+02
space2585.430090.11000.948 4.84328644E+02 4.84328644E+02
spectra21.31001.27001.031 1.39783059E+01 1.39783059E+01
st_e140.02000.0400--- 4.57958240E+00 4.57958240E+00
st_e270.00000.0000--- 2.00000000E+00 2.00000000E+00
st_e290.05000.0400--- -9.43470500E-01 -9.43470500E-01
st_e350.01000.0100--- 1.17178934E+05 1.17178934E+05
st_e380.00000.0000--- 7.19772715E+03 7.19772715E+03
st_miqp10.03000.0100--- 2.81000000E+02 2.81000000E+02
st_miqp20.03000.0100--- 2.00000000E+00 2.00000000E+00
st_miqp30.00000.0000--- -6.00000000E+00 -6.00000000E+00
st_miqp40.00000.0000--- -4.57400000E+03 -4.57400000E+03
st_miqp50.00000.0000--- -3.33888889E+02 -3.33888889E+02
st_test50.06000.0400--- -1.10000000E+02 -1.10000000E+02
st_test80.01000.0100--- -2.96050000E+04 -2.96050000E+04
st_testgr10.04000.0300--- -1.27281000E+01 -1.27281000E+01
st_testgr30.06000.0300--- -2.04688000E+01 -2.04688000E+01
st_testph40.02000.0200--- -8.05000000E+01 -8.05000000E+01
stockcycle98.010098.60000.994 1.43295165E+05 1.43295165E+05
synheat1.22001.33000.917 1.54997335E+05 1.54997335E+05
synthes10.03000.0100--- 6.00975891E+00 6.00975891E+00
synthes20.04000.0800--- 7.30353125E+01 7.30353125E+01
windfac0.00000.0100--- 2.54487298E-01 2.54487298E-01

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
elf0.56000.47001.191 4.34666666E-01 4.34666666E-01
ex12240.08000.05001.600 -9.43470500E-01 -9.43470500E-01
fac30.29000.19001.526 3.19823098E+07 3.19823098E+07
gasnet0.09000.08001.125 7.04532689E+06 7.04532689E+06
gear0.64000.57001.123 0.00000000E+00 0.00000000E+00
synthes30.18000.16001.125 6.80097405E+01 6.80097405E+01
util0.08000.06001.333 9.99897308E+02 9.99897308E+02

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
deb7infeasible 264.7300 -- 1.43492391E+02 1.16584559E+02
deb8infeasible 75.2600 -- 2.49467682E+03 1.16584559E+02
feedtray2infeasible 75.6600 -- 0.00000000E+00 0.00000000E+00
st_e13infeasible 0.0100 -- 1.00000000E+00 2.00000000E+00
st_e15infeasible 0.0100 -- 3.00000000E+00 7.66718007E+00
st_e31infeasible 0.1000 -- 0.00000000E+00 -2.00000000E+00
st_e36infeasible 0.2000 -- 0.00000000E+00 -2.46000000E+02
tltrinfeasible 1662.7900 -- 0.00000000E+00 4.80666667E+01

Back to top



Back to top

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

Modelname Time (SBB-CONOPT) Time (SBB-CONOPT_IPOPT) Ratio (SBB-CONOPT / SBB-CONOPT_IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT_IPOPT)
fo7fail 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
tls6fail fail -- 0.00000000E+00 0.00000000E+00
tls7fail fail -- 0.00000000E+00 0.00000000E+00

Back to top