Resource Times:

Results created on 03/04/11 12:14:23 using the PAVER Server/Performance tools available at http://www.gamsworld.eu/performance/paver

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: MINOS-1.trc
Tracefile 2: SNOPT-1.trc
Solvers used : MINOS
SNOPT
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed

Total Obj MINOS better Obj same Obj SNOPT better
Solver MINOS infinitely faster : 2 2 - -
Solver MINOS much faster : 27 2 23 2
Solver MINOS faster : 21 - 18 3
Solvers perform the same : 6 - 4 2
Solver SNOPT faster : 6 - 5 1
Solver SNOPT much faster : 8 2 5 1
Solver SNOPT infinitely faster : 7 - - 7
Both solvers failed to solve optimally : 4 - 4 -
Total models: : 8165916

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 MINOS infinitely faster - Obj of MINOS better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki00160.7560fail -- 1.49079919E+03 NA
infeas10.3290infeasible -- 1.36855964E+04 -1.26241169E+04

Back to top



Solver MINOS much faster - Obj of MINOS better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki00021.9580155.92200.013 1.07456972E+00 1.09249984E+00
arki00141082.35903600.03700.301 -2.23977093E+05 -2.23972995E+05

Back to top



Solver MINOS much faster - Obj same for both solvers:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki001122.9860417.86200.055 -2.24086460E+05 -2.24086460E+05
arki0012797.43103241.72100.246 -2.24252445E+05 -2.24252446E+05
arki00209.125025.42300.359 -4.10749544E+01 -4.10749544E+01
catmix4000.72802.57700.282 -4.80565088E-02 -4.80565453E-02
catmix8001.454010.91700.133 -4.80558486E-02 -4.80559005E-02
chain4001.99607.15800.279 5.06862169E+00 5.06862169E+00
ex8_2_5a25.8150183.93900.140 -8.30332128E+02 -8.30338028E+02
flowchan2000.08401.06500.079 0.00000000E+00 0.00000000E+00
flowchan4000.29403.37900.087 0.00000000E+00 0.00000000E+00
jbearing252.43507.01200.347 -1.54015540E-01 -1.54015540E-01
jbearing5014.115030.72100.459 -1.54824222E-01 -1.54824222E-01
methanol500.50201.21200.414 9.02228684E-03 9.02228684E-03
minsurf5020.468067.60100.303 2.51488916E+00 2.51488916E+00
minsurf7574.9040155.17500.483 2.50568648E+00 2.50568648E+00
pinene1000.85702.35200.364 1.98721701E+01 1.98721701E+01
pinene2003.837010.75300.357 1.98721669E+01 1.98721668E+01
pinene250.26801.18900.225 1.98721655E+01 1.98721655E+01
pinene500.26601.05100.253 1.98721655E+01 1.98721655E+01
popdynm500.34401.06900.322 1.97465452E+04 1.97465452E+04
robot2001.77307.17200.247 9.14139550E+00 9.14139550E+00
robot4007.128073.11900.097 9.14102603E+00 9.14102603E+00
rocket2001.95604.61000.424 -1.01283556E+00 -1.01283569E+00
rocket4004.713040.45000.117 -1.01283632E+00 -1.01283661E+00

Back to top



Solver MINOS much faster - Obj of SNOPT better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
ex8_2_2a35.2220118.92300.296 -5.52642256E+02 -5.52660247E+02
ex8_2_3a1.969064.36500.031 -3.28293488E+03 -3.73107809E+03

Back to top



Solver MINOS faster - Obj same for both solvers:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki0013880.93301487.54700.592 -2.24253087E+05 -2.24253089E+05
catmix2000.58800.67800.867 -4.80590981E-02 -4.80591364E-02
flowchan1000.02700.3330--- 0.00000000E+00 0.00000000E+00
gasoil1000.36800.49800.739 5.23659430E-03 5.23659432E-03
gasoil4005.14107.00000.734 5.23659581E-03 5.23659583E-03
lnts1000.26900.31000.868 5.54595401E-01 5.54595401E-01
lnts2001.17901.48200.796 5.54577016E-01 5.54577016E-01
lnts4005.43806.48500.839 5.54572414E-01 5.54572414E-01
methanol1000.68700.81900.839 9.02229107E-03 9.02229107E-03
methanol2002.01102.50900.802 9.02228979E-03 9.02228980E-03
methanol4007.29708.42000.867 9.02228982E-03 9.02228985E-03
minsurf100174.5360307.39600.568 2.50694926E+00 2.50694926E+00
minsurf253.12705.75000.544 2.51948768E+00 2.51948768E+00
popdynm1001.03001.95400.527 1.97465286E+04 1.97465286E+04
popdynm2003.22906.14000.526 1.97465296E+04 1.97465296E+04
popdynm250.17500.31300.559 1.97522154E+04 1.97522154E+04
robot1000.51400.89200.576 9.14268538E+00 9.14268538E+00
torsion5012.472014.29300.873 -4.18087632E-01 -4.18087632E-01

Back to top



Solver MINOS faster - Obj of SNOPT better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
ex8_2_5b5.66606.76400.838 -8.29345398E+02 -8.30079408E+02
polygon501.28001.60200.799 -7.72647880E-01 -7.84013049E-01
polygon752.81405.31700.529 -7.71156817E-01 -7.84788457E-01

Back to top



Solvers perform the same - Obj same for both solvers:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki00153.63603.71500.979 -2.72299779E+02 -2.72299778E+02
gasoil2001.48001.47501.003 5.23659585E-03 5.23659587E-03
gasoil500.18500.20100.920 5.23664000E-03 5.23664002E-03
torsion251.60001.50501.063 -4.17510730E-01 -4.17510730E-01

Back to top



Solvers perform the same - Obj of SNOPT better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
polygon10021.186021.38000.991 -6.79085052E-01 -7.85031267E-01
polygon250.09000.0360--- -7.55410692E-01 -7.79736699E-01

Back to top



Solver SNOPT faster - Obj same for both solvers:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki0021106.435075.64901.407 -7.25821009E+01 -7.25821009E+01
ex8_2_3b39.212022.16701.769 -3.73072314E+03 -3.73072925E+03
jbearing7544.044024.63401.788 -1.54984535E-01 -1.54984535E-01
robot500.19300.14101.369 9.14687850E+00 9.14687850E+00
rocket1001.23600.74201.666 -1.01283199E+00 -1.01283202E+00

Back to top



Solver SNOPT faster - Obj of SNOPT better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
ex8_2_2b7.70706.62801.163 -5.51592489E+02 -5.51769771E+02

Back to top



Solver SNOPT much faster - Obj of MINOS better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki00183600.101042.210085.290 1.04589234E-02 1.19806893E-02
arki00231645.391082.483019.948 -1.53660078E+02 -1.53417323E+02

Back to top



Solver SNOPT much faster - Obj same for both solvers:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki0022221.9420103.72902.140 -8.70990913E+01 -8.70990913E+01
catmix1000.36700.16602.211 -4.80694116E-02 -4.80693970E-02
jbearing10090.735040.07802.264 -1.55041962E-01 -1.55041962E-01
torsion100100.556019.89405.055 -4.18239213E-01 -4.18239213E-01
torsion7542.841012.45003.441 -4.18199401E-01 -4.18199401E-01

Back to top



Solver SNOPT much faster - Obj of SNOPT better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki00049.87500.444022.241 3.27733013E+02 3.23467039E+02

Back to top



Solver SNOPT infinitely faster - Obj of SNOPT better:

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki0017infeasible 1715.7910 -- 1.32361574E+02 -1.21833080E+02
camshape400infeasible 0.0960 -- -4.10403065E+00 -4.27568692E+00
camshape800infeasible 0.4180 -- -4.10192270E+00 -4.27427301E+00
elec200unbounded 11.0000 -- 9.22574447E+03 1.84389927E+04
glider100infeasible 1618.6330 -- -1.48525961E+02 -1.25505860E+03
glider400infeasible 3599.9900 -- -1.27559734E+02 -2.52525598E+02
glider50infeasible 76.3770 -- -1.52864377E+02 -1.28697737E+03

Back to top



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

Modelname Time (MINOS) Time (SNOPT) Ratio (MINOS / SNOPT) Obj (MINOS) Obj (SNOPT)
arki0003infeasible fail -- 4.14759647E+05 4.92359179E+05
arki0008unbounded infeasible -- 2.74071871E+05 3.26691442E+05
ex8_2_2unbounded fail -- -7.86548070E+11 -1.67653814E+04
glider200infeasible infeasible -- -1.76628751E+02 0.00000000E+00

Back to top