Resource Times:

Results created on 01/21/09 17:51:15 using the PAVER Server/Performance tools available at

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.

Input File Number Filename
Tracefile 1: CPLEX.trc
Tracefile 2: GLPK.trc
Solvers used : CPLEX
Modeltype(s)   LP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed

Total Obj CPLEX better Obj same Obj Glpk better
Solver CPLEX infinitely faster : 9 9 - -
Solver CPLEX much faster : 84 - 84 -
Solver CPLEX faster : 12 - 12 -
Solvers perform the same : 3 - 3 -
Solver Glpk faster :- - - -
Solver Glpk much faster : 2 - 2 -
Solver Glpk infinitely faster :- - - -
Both solvers failed to solve optimally : 6 - 6 -
Total models: : 11691070

Solver return definition:

Outcome Model Status Solver 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:

Solver CPLEX infinitely faster - Obj of CPLEX better:

Modelname Time (CPLEX) Time (Glpk) Ratio (CPLEX / Glpk) Obj (CPLEX) Obj (Glpk)
l3010.8300fail -- 9.52661396E-01 0.00000000E+00
pds-5015.0100fail -- 1.66035257E+10 0.00000000E+00
pds-6017.7400fail -- 1.42659044E+10 0.00000000E+00
pds-10045.9100fail -- 1.09282300E+10 0.00000000E+00
pds-7027.5600fail -- 1.22411628E+10 0.00000000E+00
pds-8035.7100fail -- 1.14690775E+10 0.00000000E+00
pds-9042.6300fail -- 1.10875616E+10 0.00000000E+00
rail2586911.1400fail -- 9.35921821E+02 0.00000000E+00
rail42842257.5700fail -- 1.05405449E+03 0.00000000E+00

Back to top

Solver CPLEX much faster - Obj same for both solvers:

Modelname Time (CPLEX) Time (Glpk) Ratio (CPLEX / Glpk) Obj (CPLEX) Obj (Glpk)
aa011.26007.99000.158 5.55354364E+04 5.55354364E+04
aa030.69009.43000.073 4.96163636E+04 4.96163636E+04
air060.70008.81000.079 4.96163636E+04 4.96163636E+04
baxter0.680017.92000.038 5.60072557E+07 5.60072557E+07
cari0.05000.16000.313 5.81893058E+02 5.81893058E+02
co51.28005.81000.220 7.14469554E+05 7.14469554E+05
co95.620025.40000.221 9.46920430E+05 9.46920430E+05
cq50.92006.78000.136 4.00133807E+05 4.00133807E+05
cq92.970028.58000.104 5.05541710E+05 5.05541710E+05
fit2d0.34005.38000.063 -6.84642933E+04 -6.84642933E+04
fit2p1.76004.06000.433 6.84642933E+04 6.84642933E+04
gen10.15003.86000.039 7.11407730E-07 -3.42957580E-08
gen28.120036.80000.221 3.29279078E+00 3.29279078E+00
gen41.200074.94000.016 3.82611384E-07 -4.12259513E-07
jendrec10.80005.41000.148 7.02846051E+03 7.02846051E+03
ken-110.21008.96000.023 -6.97238226E+09 -6.97238226E+09
ken-130.660053.07000.012 -1.02573948E+10 -1.02573948E+10
lp2215.210070.59000.215 4.58944594E+02 4.58944594E+02
lpl30.99009.64000.103 2.73180000E+04 2.73180000E+04
maros-r71.14003.96000.288 1.49718517E+06 1.49718517E+06
mod22.6000110.32000.024 2.77373714E+07 2.77373714E+07
model110.40004.80000.083 0.00000000E+00 0.00000000E+00
model90.59001.80000.328 -1.41123094E+05 -1.41122759E+05
nemswrld20.460098.51000.208 2.60308966E+02 2.60308966E+02
nsir10.08000.68000.118 -2.89090330E+07 -2.89090330E+07
nsir20.20000.51000.392 -2.71755935E+07 -2.71755935E+07
p0100.42006.62000.063 1.11504792E+06 1.11504792E+06
p050.19001.80000.106 5.56000277E+05 5.56000277E+05
pcb30000.42002.94000.143 1.37416420E+05 1.37416420E+05
pds-060.24002.61000.092 2.77610376E+10 2.77610376E+10
pds-100.520011.72000.044 2.67270950E+10 2.67270950E+10
qap151125.93002335.24000.482 1.04099404E+03 1.04099404E+03
r050.20001.95000.103 5.57831859E+05 5.57831859E+05
rat10.25002.43000.103 1.99953166E+06 1.99953166E+06
rat50.74003.09000.239 3.08370701E+06 3.08370701E+06
rosen100.24001.00000.240 -1.74215456E+05 -1.74215456E+05
scfxm1-2b-641.160024.89000.047 2.87756386E+03 2.87756386E+03
scfxm1-2r-640.54005.76000.094 2.87756386E+03 2.87756386E+03
scfxm1-2r-960.610012.11000.050 2.89170611E+03 2.89170611E+03
scrs8-2r-5120.120010.50000.011 1.07409934E+03 1.07409934E+03
scsd8-2b-640.23004.82000.048 1.59986680E+01 1.59986680E+01
scsd8-2c-640.21004.80000.044 1.49992320E+01 1.49992320E+01
scsd8-2r-1080.08001.56000.051 2.36999943E+01 2.36999943E+01
scsd8-2r-2160.18004.33000.042 2.33999841E+01 2.33999839E+01
sctap1-2b-640.23005.80000.040 4.84560000E+02 4.84560000E+02
slptsk0.67002.34000.286 2.98953660E+01 2.98953660E+01
south3127.950061.43000.455 1.81894020E+09 1.81894020E+09
stocfor30.64005.86000.109 -3.99767839E+04 -3.99767839E+04
testbig0.20006.94000.029 -6.04229607E+01 -6.04229607E+01
ulevimin9.140046.32000.197 -5.19110186E+09 -5.19110186E+09
world2.3800145.69000.016 4.03648731E+07 4.03648731E+07
cre-b1.570014.87000.106 2.31296399E+07 2.31296399E+07
cre-d0.83008.65000.096 2.44549698E+07 2.44549698E+07
fome130.56001.32000.424 0.00000000E+00 0.00000000E+00
fome202.6300115.30000.023 2.38216586E+10 2.38216586E+10
fome216.6200923.76000.007 4.73463189E+10 4.73463189E+10
ken-184.3600870.21000.005 -5.22170253E+10 -5.22170253E+10
kl020.23000.61000.377 2.15250000E+02 2.15250000E+02
nemsemm20.39005.58000.070 5.81079571E+05 5.81079571E+05
nsct10.42007.29000.058 -3.89224360E+07 -3.89224360E+07
nsct20.72002.36000.305 -3.71750820E+07 -3.71750820E+07
osa-140.36001.45000.248 1.10646284E+06 1.10646284E+06
osa-300.78005.73000.136 2.14213987E+06 2.14213987E+06
pds-202.5700116.93000.022 2.38216586E+10 2.38216586E+10
pds-305.6700496.42000.011 2.13854457E+10 2.13854457E+10
pds-4010.30001511.61000.007 1.88551988E+10 1.88551988E+10
rail5073.810018.69000.204 1.72145567E+02 1.72145567E+02
rail5161.92006.56000.293 1.82000000E+02 1.82000000E+02
rail5822.520019.48000.129 2.09712233E+02 2.09712233E+02
rat7a5.340024.52000.218 2.07437142E+06 2.07437142E+06
rlfddd0.320048.93000.007 -1.30000000E+01 -1.30000000E+01
rlfdual4.01002015.86000.002 -1.00000000E+00 -1.00000000E+00
rlfprim0.640023.20000.028 1.00000000E+00 1.00000000E+00
route0.270011.74000.023 5.94165028E+03 5.94165028E+03
scsd8-2r-4320.400013.54000.030 2.57999698E+01 2.57999695E+01
t0331-4l10.790035.17000.307 2.97300334E+04 2.97300334E+04
us040.26000.95000.274 1.77316667E+04 1.77316667E+04
watson_116.44002991.37000.005 -1.60928077E+03 -1.60928080E+03
dbic145.9400290.46000.158 -9.76897300E+06 -9.76897300E+06
dbir10.690016.55000.042 -8.10670700E+06 -8.10670700E+06
dbir21.09004.93000.221 -6.11691650E+06 -6.11691650E+06
nemsemm10.86006.19000.139 5.12959601E+05 5.12959601E+05
nw140.75002.22000.338 6.18440000E+04 6.18440000E+04
osa-602.320027.95000.083 4.04407250E+06 4.04407250E+06

Back to top

Solver CPLEX faster - Obj same for both solvers:

Modelname Time (CPLEX) Time (Glpk) Ratio (CPLEX / Glpk) Obj (CPLEX) Obj (Glpk)
car40.37000.54000.685 3.54603702E+01 3.54603702E+01
fome120.28000.39000.718 0.00000000E+00 0.00000000E+00
model105.970010.11000.591 -1.54599621E+05 -1.54599621E+05
model51.42001.70000.835 -8.58440729E+05 -8.58440729E+05
model71.79002.37000.755 4.93800855E+04 4.93800855E+04
nemspmm11.92003.56000.539 -3.27415836E+05 -3.27415836E+05
nemspmm21.93003.82000.505 -2.91794836E+05 -2.91794836E+05
nug151120.65002208.29000.507 1.04099404E+03 1.04099404E+03
osa-070.16000.32000.500 5.35722517E+05 5.35722517E+05
pilot876.900011.02000.626 3.01710347E+02 3.01710359E+02
wood1p0.04000.1500--- 1.44290241E+00 1.44290241E+00
self4.78007.10000.673 0.00000000E+00 0.00000000E+00

Back to top

Solvers perform the same - Obj same for both solvers:

Modelname Time (CPLEX) Time (Glpk) Ratio (CPLEX / Glpk) Obj (CPLEX) Obj (Glpk)
air020.04000.0800--- 7.64000000E+03 7.64000000E+03
crew10.16000.17000.941 2.05555556E+01 2.05555556E+01
fome110.13000.13001.000 0.00000000E+00 0.00000000E+00

Back to top

Solver Glpk much faster - Obj same for both solvers:

Modelname Time (CPLEX) Time (Glpk) Ratio (CPLEX / Glpk) Obj (CPLEX) Obj (Glpk)
ex3sta115.21004.41003.449 -6.30754033E+01 -6.30754033E+01
bas1lp6.20001.91003.246 3.63000000E+02 3.63000000E+02

Back to top

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

Modelname Time (CPLEX) Time (Glpk) Ratio (CPLEX / Glpk) Obj (CPLEX) Obj (Glpk)
bgindyinfeasible infeasible -- 6.14604248E+04 0.00000000E+00
goshinfeasible infeasible -- 4.96836415E+01 0.00000000E+00
lpl1infeasible infeasible -- 3.61926802E+02 2.84200000E+06
nug20fail fail -- 3.10369309E-02 0.00000000E+00
sgpf5y6infeasible infeasible -- 6.46195785E+09 -2.00000004E+03
nug30fail fail -- 1.60000000E+01 0.00000000E+00

Back to top