Resource Times:

 Date / Time: 08/25/08 16:26:13

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 : 22.5.trc Tracefile 2 : 22.9.trc Solvers used : CBC12 CBC22 Modeltype(s) MIP Threshold: Solver Faster 10% Threshold: Solver Much Faster 50% Threshold: Solver Infinitely Faster Other solver failed

 Total Obj CBC12 better Obj same Obj CBC22 better Solver CBC12 infinitely faster : - - - - Solver CBC12 much faster : 4 - 4 - Solver CBC12 faster : 8 - 8 - Solvers perform the same : 8 - 8 - Solver CBC22 faster : 20 - 20 - Solver CBC22 much faster : 30 1 29 - Solver CBC22 infinitely faster : 40 - - 40 Both solvers failed to solve optimally : - - - - Total models: : 110 1 69 40

Solver return definition:

 Outcome Model Status Solver 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:

• Models for each resource time category. Listed are the solver resource times TIME(.) in seconds, as well as the ratio of resource times RATIO(.)for the two solvers if both solved optimally. Models not solved optimally by a solver have status listed instead of resource time.
• Also listed are the objective values OBJ(.) using both solvers. The better solution found is listed in boldface. A solution is considered better, if the relative objective function difference is greater than 1.00E-05.
• Solver resource time ratios for a particular model are listed only if both solvers are optimal and if one solver has resource time greater than 5.00E-02.

Solver CBC12 much faster - Obj same for both solvers:

 Modelname Time (CBC12) Time (CBC22) Ratio (CBC12 / CBC22) Obj (CBC12) Obj (CBC22) bal8x12 1.0100 2.5600 0.395 4.71550000E+02 4.71550000E+02 gesa3_o 7.0600 18.1200 0.390 2.79910426E+07 2.79910426E+07 khb05250 0.2800 0.8200 0.341 1.06940226E+08 1.06940226E+08 prod1 123.2600 352.6300 0.350 -5.60000000E+01 -5.60000000E+01

Solver CBC12 faster - Obj same for both solvers:

 Modelname Time (CBC12) Time (CBC22) Ratio (CBC12 / CBC22) Obj (CBC12) Obj (CBC22) air04 124.9700 152.4700 0.820 5.61370000E+04 5.61370000E+04 dcmulti 2.5200 3.7700 0.668 1.88182000E+05 1.88182000E+05 fiber 4.4900 5.1100 0.879 4.05935180E+05 4.05935180E+05 gesa3 5.2900 9.3700 0.565 2.79910426E+07 2.79910426E+07 gt2 0.4700 0.7600 0.618 2.11660000E+04 2.11660000E+04 p0201 15.9700 19.6500 0.813 7.61500000E+03 7.61500000E+03 p0282 4.8200 7.2800 0.662 2.58411000E+05 2.58411000E+05 stein45 57.4100 65.1400 0.881 3.00000000E+01 3.00000000E+01

Solvers perform the same - Obj same for both solvers:

 Modelname Time (CBC12) Time (CBC22) Ratio (CBC12 / CBC22) Obj (CBC12) Obj (CBC22) bk4x3 0.0000 0.0200 --- 3.50000000E+02 3.50000000E+02 cap6000 57.7900 63.4000 0.912 -2.45137700E+06 -2.45137700E+06 egout 0.0200 0.0400 --- 5.68100700E+02 5.68100700E+02 gr4x6 0.0200 0.0200 --- 2.02350000E+02 2.02350000E+02 misc06 0.8300 0.7900 1.051 1.28508607E+04 1.28508607E+04 misc07 95.1000 95.8400 0.992 2.81000000E+03 2.81000000E+03 qnet1_o 5.9500 5.7800 1.029 1.60296927E+04 1.60296927E+04 stein27 2.1700 2.3800 0.912 1.80000000E+01 1.80000000E+01

Solver CBC22 faster - Obj same for both solvers:

 Modelname Time (CBC12) Time (CBC22) Ratio (CBC12 / CBC22) Obj (CBC12) Obj (CBC22) acc-tight-0 36.1500 29.9400 1.207 0.00000000E+00 0.00000000E+00 air03 5.0600 3.1400 1.611 3.40160000E+05 3.40160000E+05 blend2 14.1500 11.5600 1.224 7.59898500E+00 7.59898500E+00 fixnet6 8.7200 5.1300 1.700 3.98300000E+03 3.98300000E+03 lseu 2.1400 1.6200 1.321 1.12000000E+03 1.12000000E+03 mas284 63.5000 50.2800 1.263 9.14057237E+04 9.14057237E+04 mas76 424.9300 329.0000 1.292 4.00050541E+04 4.00050541E+04 mitre 8.6200 7.1600 1.204 1.15155000E+05 1.15155000E+05 mod008 1.2200 1.0900 1.119 3.07000000E+02 3.07000000E+02 mod011 264.7600 202.1700 1.310 -5.45585350E+07 -5.45585350E+07 nw04 49.5300 34.6500 1.429 1.68620000E+04 1.68620000E+04 p0033 0.2400 0.0400 --- 3.08900000E+03 3.08900000E+03 pk1 447.1800 268.7200 1.664 1.10000000E+01 1.10000000E+01 pp08a 35.7800 19.5600 1.829 7.35000000E+03 7.35000000E+03 qnet1 8.1900 5.3400 1.534 1.60296927E+04 1.60296927E+04 ran10x10b 4.5800 2.6500 1.728 3.07300000E+03 3.07300000E+03 ran10x10c 12.0600 8.6700 1.391 1.30070000E+04 1.30070000E+04 ran6x43 4.2400 3.2600 1.301 6.33000000E+03 6.33000000E+03 rentacar 11.6400 5.8300 1.997 2.88824709E+07 2.88824709E+07 vpm2 9.6500 6.8500 1.409 1.37500000E+01 1.37500000E+01

Solver CBC22 much faster - Obj of CBC12 better:

 Modelname Time (CBC12) Time (CBC22) Ratio (CBC12 / CBC22) Obj (CBC12) Obj (CBC22) neos5 165.2900 5.9200 27.921 -4.86034408E+10 -4.82755037E+10

Solver CBC22 much faster - Obj same for both solvers:

 Modelname Time (CBC12) Time (CBC22) Ratio (CBC12 / CBC22) Obj (CBC12) Obj (CBC22) acc-tight-1 397.4500 79.2000 5.018 0.00000000E+00 0.00000000E+00 acc-tight-4 105.8300 3.0400 34.813 0.00000000E+00 0.00000000E+00 air05 348.7400 64.2500 5.428 2.63740000E+04 2.63740000E+04 bell3a 15.2900 3.2100 4.763 8.78430316E+05 8.78430316E+05 dsbmip 46.7700 5.6600 8.263 -3.06769012E+02 -3.06769012E+02 enigma 14.6200 1.0800 13.537 0.00000000E+00 0.00000000E+00 gen 0.4800 0.1900 2.526 1.12313363E+05 1.12313363E+05 gesa2 89.8500 10.0300 8.958 2.57798564E+07 2.57798564E+07 gesa2_o 500.3600 49.4700 10.114 2.57798564E+07 2.57798564E+07 irp 87.6500 40.5900 2.159 1.21594928E+04 1.21594928E+04 l152lav 35.7100 5.7800 6.178 4.72200000E+03 4.72200000E+03 misc03 9.8400 4.0800 2.412 3.36000000E+03 3.36000000E+03 mod010 8.3100 0.7300 11.384 6.54800000E+03 6.54800000E+03 modglob 38.7200 10.6000 3.653 2.07405081E+07 2.07405081E+07 neos2 30.9400 9.6700 3.200 4.54864697E+02 4.54864697E+02 neos3 224.6600 26.4200 8.503 3.68842751E+02 3.68842751E+02 neos4 168.6800 15.5600 10.841 -4.86034408E+10 -4.86034408E+10 p0548 12.7100 3.1000 4.100 8.69100000E+03 8.69100000E+03 pp08acuts 763.5900 24.7200 30.890 7.35000000E+03 7.35000000E+03 ran10x10a 10.4600 4.4800 2.335 1.49900000E+03 1.49900000E+03 ran10x12 9.6200 2.8700 3.352 2.71400000E+03 2.71400000E+03 ran10x26 537.9800 44.3500 12.130 4.27000000E+03 4.27000000E+03 ran12x12 248.1500 53.6000 4.630 2.29100000E+03 2.29100000E+03 ran13x13 534.5600 87.5100 6.109 3.25200000E+03 3.25200000E+03 ran17x17 251.3200 20.6500 12.170 1.37300000E+03 1.37300000E+03 ran4x64 9.3100 3.2900 2.830 9.71100000E+03 9.71100000E+03 rlp2 97.6400 5.5900 17.467 1.90000000E+01 1.90000000E+01 swath1 579.6000 158.5600 3.655 3.79071296E+02 3.79071296E+02 vpm1 1.3800 0.1300 10.615 2.00000000E+01 2.00000000E+01