Resource Times:

Results created on 11/20/09 15:35:11 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: SNOPT-1.trc
Tracefile 2: PATHNLP-1.trc
Solvers used : SNOPT
PATHNLP
Modeltype(s)   NLP
Threshold: Solver Faster 10%
Threshold: Solver Much Faster 50%
Threshold: Solver Infinitely Faster Other solver failed

Total Obj SNOPT better Obj same Obj PATHNLP better
Solver SNOPT infinitely faster : 10 10 - -
Solver SNOPT much faster : 20 13 7 -
Solver SNOPT faster : 8 1 7 -
Solvers perform the same : 1 - 1 -
Solver PATHNLP faster : 10 - 9 1
Solver PATHNLP much faster : 26 1 24 1
Solver PATHNLP infinitely faster : 3 - - 3
Both solvers failed to solve optimally : 3 - 3 -
Total models: : 8125515

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 SNOPT infinitely faster - Obj of SNOPT better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki00123600.2200fail -- -2.24171550E+05 0.00000000E+00
arki00131709.7900fail -- -2.24253089E+05 0.00000000E+00
arki00143504.7300fail -- -2.23977094E+05 0.00000000E+00
camshape4000.1100fail -- -4.27568692E+00 0.00000000E+00
camshape8000.4300fail -- -4.27427301E+00 0.00000000E+00
elec20011.7800fail -- 1.84389927E+04 9.27104392E+03
glider4003600.0000fail -- -2.54824120E+02 0.00000000E+00
glider5055.3500fail -- -1.28697737E+03 0.00000000E+00
rocket1000.6700fail -- -1.01283202E+00 0.00000000E+00
rocket2002.9800fail -- -1.01283569E+00 0.00000000E+00

Back to top



Solver SNOPT much faster - Obj of SNOPT better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki00031.4500647.07000.002 3.79520607E+03 2.05736385E+06
arki00040.4100526.56000.001 3.23467039E+02 1.77310632E+04
arki00153.6100243.02000.015 -2.72299778E+02 -1.80932729E+02
ex8_2_2a92.38001158.93000.080 -5.52657616E+02 -1.97215018E+02
ex8_2_2b6.7000580.07000.012 -5.51769779E+02 1.33230881E+02
ex8_2_3a48.36002895.70000.017 -3.73107809E+03 -3.10630214E+03
ex8_2_3b22.18004028.36000.006 -3.73072925E+03 -3.11415611E+03
ex8_2_5b6.68001234.61000.005 -8.30079408E+02 -2.12132241E+02
lnts4006.3600268.70000.024 5.54572414E-01 1.33410797E+00
polygon10020.7200441.69000.047 -7.85031267E-01 -5.45056362E-01
polygon250.03000.6600--- -7.79736699E-01 -7.79678243E-01
polygon501.500046.21000.032 -7.84013049E-01 -7.53266863E-01
polygon755.140016.72000.307 -7.84788457E-01 -7.55715641E-01

Back to top



Solver SNOPT much faster - Obj same for both solvers:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki0011401.74003610.19000.111 -2.24086460E+05 -2.24086460E+05
lnts1000.36001.57000.229 5.54595401E-01 5.54595401E-01
lnts2001.430043.61000.033 5.54577016E-01 5.54577016E-01
pinene1002.30005.51000.417 1.98721701E+01 1.98721701E+01
robot20015.260063.11000.242 9.14139550E+00 9.14139550E+00
robot500.16001.04000.154 9.14687850E+00 9.14687850E+00
rocket4009.2400833.76000.011 -1.01283661E+00 -1.01283661E+00

Back to top



Solver SNOPT faster - Obj of SNOPT better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
ex8_2_5a184.5500358.86000.514 -8.30338028E+02 -4.54774107E+02

Back to top



Solver SNOPT faster - Obj same for both solvers:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
catmix1000.16000.21000.762 -4.80693970E-02 -4.80694241E-02
catmix2000.70000.88000.795 -4.80591364E-02 -4.80591431E-02
pinene20010.510012.20000.861 1.98721668E+01 1.98721668E+01
popdynm1001.93002.23000.865 1.97465286E+04 1.97465286E+04
popdynm2005.96007.28000.819 1.97465296E+04 1.97465296E+04
robot1000.82001.05000.781 9.14268538E+00 9.14268538E+00
robot40044.630052.88000.844 9.14102603E+00 9.14102603E+00

Back to top



Solvers perform the same - Obj same for both solvers:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
catmix4002.48002.62000.947 -4.80565453E-02 -4.80565465E-02

Back to top



Solver PATHNLP faster - Obj same for both solvers:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
chain4007.02004.29001.636 5.06862169E+00 5.06862169E+00
gasoil1000.49000.28001.750 5.23659432E-03 5.23659432E-03
gasoil2001.48000.89001.663 5.23659587E-03 5.23659587E-03
methanol4008.40004.22001.991 9.02228985E-03 9.02228985E-03
pinene251.00000.54001.852 1.98721655E+01 1.98721655E+01
pinene500.98000.52001.885 1.98721655E+01 1.98721655E+01
popdynm501.03000.54001.907 1.97465452E+04 1.97465452E+04
torsion10019.190013.53001.418 -4.18239213E-01 -4.18239213E-01
torsion7512.30007.33001.678 -4.18199401E-01 -4.18199401E-01

Back to top



Solver PATHNLP faster - Obj of PATHNLP better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki002381.070052.55001.543 -1.53417323E+02 -1.53660078E+02

Back to top



Solver PATHNLP much faster - Obj of SNOPT better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki0002154.46000.7200214.528 1.09249984E+00 1.87252775E+00

Back to top



Solver PATHNLP much faster - Obj same for both solvers:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki00171680.01005.2700318.787 -1.21833080E+02 -1.21833080E+02
arki002022.27000.480046.396 -4.10749544E+01 -4.10749544E+01
arki002189.14004.390020.305 -7.25821009E+01 -7.25821009E+01
arki0022110.24009.470011.641 -8.70990913E+01 -8.70990913E+01
catmix80010.70003.70002.892 -4.80559005E-02 -4.80559008E-02
flowchan1000.32000.12002.667 0.00000000E+00 0.00000000E+00
flowchan2001.06000.26004.077 0.00000000E+00 0.00000000E+00
flowchan4003.28000.69004.754 0.00000000E+00 0.00000000E+00
gasoil4006.62003.22002.056 5.23659583E-03 5.23659583E-03
gasoil500.22000.10002.200 5.23664002E-03 5.23664002E-03
jbearing10040.23004.66008.633 -1.55041962E-01 -1.55041962E-01
jbearing256.66000.360018.500 -1.54015540E-01 -1.54015540E-01
jbearing5029.91001.290023.186 -1.54824222E-01 -1.54824222E-01
jbearing7526.71002.670010.004 -1.54984535E-01 -1.54984535E-01
methanol1000.85000.38002.237 9.02229107E-03 9.02229107E-03
methanol2002.48001.18002.102 9.02228980E-03 9.02228980E-03
methanol500.35000.13002.692 9.02228684E-03 9.02228684E-03
minsurf100295.67005.340055.369 2.50694926E+00 2.50694926E+00
minsurf255.46000.350015.600 2.51948768E+00 2.51948768E+00
minsurf5067.89001.280053.039 2.51488916E+00 2.51488916E+00
minsurf75152.57002.580059.136 2.50568648E+00 2.50568648E+00
popdynm250.31000.14002.214 1.97522154E+04 1.97522154E+04
torsion251.45000.68002.132 -4.17510730E-01 -4.17510730E-01
torsion5012.90003.12004.135 -4.18087632E-01 -4.18087632E-01

Back to top



Solver PATHNLP much faster - Obj of PATHNLP better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki001840.28001.870021.540 1.19763934E-02 1.04566244E-02

Back to top



Solver PATHNLP infinitely faster - Obj of PATHNLP better:

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki0016fail 2.4000 -- NA 8.67973166E+02
ex8_2_2fail 1849.9500 -- NA 2.57467449E+01
infeas1infeasible 1.6000 -- -1.26241169E+04 1.36855965E+04

Back to top



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

Modelname Time (SNOPT) Time (PATHNLP) Ratio (SNOPT / PATHNLP) Obj (SNOPT) Obj (PATHNLP)
arki0008infeasible fail -- 3.26691419E+05 0.00000000E+00
glider100infeasible fail -- 0.00000000E+00 0.00000000E+00
glider200infeasible fail -- 0.00000000E+00 0.00000000E+00

Back to top