Resource Times:

Date / Time: 01/28/08 11:14:03


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-CBC2004.trc
Tracefile 2 :2-CBC2008.trc
Solvers used : CBC2004
CBC2008
Modeltype(s)   LP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed


Total Obj CBC2004 better Obj same Obj CBC2008 better
Solver CBC2004 infinitely faster :- - - -
Solver CBC2004 much faster : 10 - 10 -
Solver CBC2004 faster : 12 - 12 -
Solvers perform the same : 15 - 15 -
Solver CBC2008 faster : 14 - 14 -
Solver CBC2008 much faster : 47 - 47 -
Solver CBC2008 infinitely faster : 13 - - 13
Both solvers failed to solve optimally : 9 - 9 -
Total models: : 120010713




Solver return definition:

OutcomeModel StatusSolver Status
globally optimal 1 or 15 1
locally optimal/feasible 2 or 7 or 16 or 17 1 or 2 or 3 or 4 or 5




Resource Times:

Back to top

Solver CBC2004 much faster - Obj same for both solvers:

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
cari0.21000.64000.328 5.81893058E+02 5.81893058E+02
ex3sta128.3100133.11000.213 -6.30754033E+01 -6.30754033E+01
fit2d1.50008.10000.185 -6.84642933E+04 -6.84642933E+04
fome110.08000.37000.216 0.00000000E+00 0.00000000E+00
fome120.15000.82000.183 0.00000000E+00 0.00000000E+00
bas1lp0.91004.42000.206 3.63000000E+02 3.63000000E+02
fome130.31001.78000.174 0.00000000E+00 0.00000000E+00
rlfdual24.320097.31000.250 -1.00000000E+00 -1.00000000E+00
us040.550014.09000.039 1.77316667E+04 1.77316667E+04
nw141.65005.31000.311 6.18440000E+04 6.18440000E+04

Back to top



Back to top

Solver CBC2004 faster - Obj same for both solvers:

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
air020.07000.12000.583 7.64000000E+03 7.64000000E+03
car42.19002.77000.791 3.54603702E+01 3.54603702E+01
gen473.6200103.89000.709 1.32852119E-06 2.86876760E-06
jendrec13.64004.97000.732 7.02846050E+03 7.02846051E+03
model113.97004.93000.805 0.00000000E+00 0.00000000E+00
scsd8-2b-640.50000.67000.746 1.59986680E+01 1.59986680E+01
scsd8-2c-640.50000.68000.735 1.49992320E+01 1.49992320E+01
scsd8-2r-1080.10000.18000.556 2.36999943E+01 2.36999943E+01
scsd8-2r-2160.38000.51000.745 2.33999840E+01 2.33999839E+01
wood1p0.14000.18000.778 1.44290241E+00 1.44290241E+00
kl020.66000.91000.725 2.15250000E+02 2.15250000E+02
scsd8-2r-4321.17001.61000.727 2.57999697E+01 2.57999695E+01

Back to top



Back to top

Solvers perform the same - Obj same for both solvers:

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
aa032.29002.12001.080 4.96163636E+04 4.96163636E+04
aa30.00000.0000--- 0.00000000E+00 0.00000000E+00
aa40.00000.0000--- 0.00000000E+00 0.00000000E+00
aa50.00000.0000--- 0.00000000E+00 0.00000000E+00
aa60.00000.0100--- 0.00000000E+00 0.00000000E+00
air062.29002.14001.070 4.96163636E+04 4.96163636E+04
gen270.630075.51000.935 3.29279078E+00 3.29279078E+00
pcb30001.32001.32001.000 1.37416420E+05 1.37416420E+05
sctap1-2b-641.47001.60000.919 4.84560000E+02 4.84560000E+02
south3170.360069.15001.017 1.81894020E+09 1.81894020E+09
rail50721.850020.13001.085 1.72145567E+02 1.72145567E+02
rail5168.19007.51001.091 1.82000000E+02 1.82000000E+02
rail58216.270017.16000.948 2.09712233E+02 2.09712233E+02
rlfddd0.61000.58001.052 -1.30000000E+01 -1.30000000E+01
nemsemm15.64005.46001.033 5.12959601E+05 5.12959601E+05

Back to top



Back to top

Solver CBC2008 faster - Obj same for both solvers:

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
aa014.84003.91001.238 5.55354364E+04 5.55354364E+04
co58.33004.84001.721 7.14469554E+05 7.14469554E+05
co947.040028.23001.666 9.46920430E+05 9.46920430E+05
crew10.41000.31001.323 2.05555556E+01 2.05555556E+01
fit2p9.50008.17001.163 6.84642933E+04 6.84642933E+04
l3037.490031.59001.187 9.52661199E-01 9.52661414E-01
lp2270.060060.66001.155 4.58944594E+02 4.58944594E+02
nemswrld166.810093.81001.778 2.60308966E+02 2.60308966E+02
scfxm1-2r-643.52002.23001.578 2.87756386E+03 2.87756386E+03
slptsk4.52003.56001.270 2.98953660E+01 2.98953660E+01
nemsemm22.38001.59001.497 5.81079571E+05 5.81079571E+05
rlfprim6.59005.24001.258 1.00000000E+00 1.00000000E+00
route1.24000.67001.851 5.94165028E+03 5.94165028E+03
self17.830011.55001.544 0.00000000E+00 0.00000000E+00

Back to top



Back to top

Solver CBC2008 much faster - Obj same for both solvers:

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
baxter12.44001.92006.479 5.60072557E+07 5.60072557E+07
cq54.94002.13002.319 4.00133807E+05 4.00133807E+05
cq932.720012.45002.628 5.05541710E+05 5.05541710E+05
gen119.28002.19008.804 5.20042799E-07 1.22203117E-06
ken-112.84000.81003.506 -6.97238226E+09 -6.97238226E+09
ken-1311.15002.37004.705 -1.02573948E+10 -1.02573948E+10
lpl311.31001.37008.255 2.73180000E+04 2.73180000E+04
maros-r744.71007.34006.091 1.49718517E+06 1.49718517E+06
mod282.790010.82007.652 2.77373714E+07 2.77373714E+07
model10344.990064.47005.351 -1.54599570E+05 -1.54599621E+05
model516.31006.01002.714 -8.58440729E+05 -8.58440729E+05
model715.88005.35002.968 4.93800855E+04 4.93800855E+04
model95.40002.07002.609 -1.41123091E+05 -1.41123094E+05
nemspmm114.70005.81002.530 -3.27415836E+05 -3.27415836E+05
nemspmm216.51006.97002.369 -2.91794836E+05 -2.91794836E+05
osa-071.15000.52002.212 5.35722517E+05 5.35722517E+05
p0105.63001.62003.475 1.11504792E+06 1.11504792E+06
p051.70000.60002.833 5.56000277E+05 5.56000277E+05
pds-063.88000.76005.105 2.77610376E+10 2.77610376E+10
pds-1016.30001.610010.124 2.67270950E+10 2.67270950E+10
pilot8762.880025.77002.440 3.01710347E+02 3.01710347E+02
r053.17000.70004.529 5.57831859E+05 5.57831859E+05
rat1127.60000.6800187.647 1.99953166E+06 1.99953166E+06
rat577.01002.770027.801 3.08370701E+06 3.08370701E+06
rosen100.96000.23004.174 -1.74215456E+05 -1.74215456E+05
scfxm1-2b-6414.63007.17002.040 2.87756386E+03 2.87756386E+03
scfxm1-2r-968.87004.32002.053 2.89170611E+03 2.89170611E+03
scrs8-2r-5121.55000.34004.559 1.07409934E+03 1.07409934E+03
stocfor311.83001.93006.130 -3.99767839E+04 -3.99767839E+04
testbig5.74001.83003.137 -6.04229607E+01 -6.04229607E+01
world70.520010.58006.665 4.03648732E+07 4.03648731E+07
cre-b101.57006.500015.626 2.31296399E+07 2.31296399E+07
cre-d46.18003.280014.079 2.44549698E+07 2.44549698E+07
fome20201.56008.180024.641 2.38216586E+10 2.38216586E+10
fome21458.800017.140026.768 4.73463189E+10 4.73463189E+10
ken-18149.300015.92009.378 -5.22170253E+10 -5.22170253E+10
nsct211.42003.47003.291 -3.71750820E+07 -3.71750820E+07
osa-145.47001.78003.073 1.10646284E+06 1.10646284E+06
osa-3034.65003.59009.652 2.14213987E+06 2.14213987E+06
pds-20187.44008.140023.027 2.38216586E+10 2.38216586E+10
pds-30683.440018.050037.864 2.13854457E+10 2.13854457E+10
pds-401267.710033.670037.651 1.88551988E+10 1.88551988E+10
pds-501777.900059.430029.916 1.66035257E+10 1.66035257E+10
pds-602534.800077.900032.539 1.42659044E+10 1.42659044E+10
rat7a413.170034.470011.986 2.07437142E+06 2.07437142E+06
t0331-4l71.760028.37002.529 2.97300334E+04 2.97300334E+04
watson_11739.3500176.99009.827 -1.60928078E+03 -1.60928070E+03

Back to top



Back to top

Solver CBC2008 infinitely faster - Obj of CBC2008 better:

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
nsir1infeasible 0.5200 -- -3.15035900E+07 -2.89090330E+07
nsir2infeasible 0.8700 -- -2.88980360E+07 -2.71755935E+07
ulevimininfeasible 58.5700 -- -5.19198575E+09 -5.19110186E+09
nsct1infeasible 2.1000 -- -3.90925630E+07 -3.89224360E+07
dbic1infeasible 562.3000 -- -1.00000000E+20 -9.76897300E+06
dbir1infeasible 6.7600 -- -8.10266600E+06 -8.10670700E+06
dbir2infeasible 6.0700 -- -6.65951550E+06 -6.11691650E+06
osa-60fail 13.5600 -- NA 4.04407250E+06
pds-100fail 171.1700 -- NA 1.09282300E+10
pds-70fail 118.2300 -- NA 1.22411628E+10
pds-80fail 141.4600 -- NA 1.14690775E+10
pds-90fail 176.7900 -- NA 1.10875616E+10
rail2586fail 3319.3900 -- NA 9.35921821E+02

Back to top



Back to top

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

Modelname Time (CBC2004) Time (CBC2008) Ratio (CBC2004 / CBC2008) Obj (CBC2004) Obj (CBC2008)
bgindyinfeasible infeasible -- 9.55484000E+06 9.53478384E+06
goshinfeasible infeasible -- 2.35994385E+02 2.61581720E+03
nug15infeasible fail -- 8.62786712E+02 9.63125704E+02
qap15infeasible fail -- 8.35443283E+02 9.78514855E+02
lpl1infeasible infeasible -- 2.84200000E+06 2.84341900E+06
nug20infeasible fail -- 8.96328302E+02 1.30530309E+03
sgpf5y6infeasible infeasible -- 1.21116221E+06 -2.56470955E+07
nug30fail fail -- NA 4.17915749E+02
rail4284fail fail -- NA 9.46596290E+02

Back to top