## Solver Square Comparison: Considers all models.

 Date / Time: 09/29/08 16:20:29

Solver comparison utility.

Compares all solver return outcomes (for example optimal, locally optimal, infeasible, unbounded, fail) of one solver with all return outcomes of another solver. Interrupt denotes resource or iteration limit has been reached. Solver LINDOGLOBAL is represented on the left (rows) and solver SBB on top (columns). See the solver return definitions for return codes.

Models having trace data only in one trace file are listed in the "no data" column of the other.

 Tracefile 1 : LINDOGLOBAL-1.trc.convex Tracefile 2 : SBB-1.trc.convex Solvers used : LINDOGLOBAL SBB Modeltype(s) MINLP

 SBB: optimal SBB: feasible SBB: infeasible SBB: unbounded SBB: fail SBB: no data total LINDOGLOBAL LINDOGLOBAL: optimal - 20 - - - - 20 LINDOGLOBAL: feasible - 12 - - 2 - 14 LINDOGLOBAL: infeasible - - - - - - - LINDOGLOBAL: unbounded - - - - - - - LINDOGLOBAL: fail - - - - 1 - 1 LINDOGLOBAL: no data - - - - - - - total SBB - 32 - - 3 - 35

### Solver return definitions:

 Outcome Model Status Solver Status optimal 1 or 15 1 locally optimal 2 any feasible 8 or 16 1 or 2 or 3 or 4 or 5 infeasible 4 or 5 or 10 or 19 1 unbounded 3 or 18 1 fail all other all other

### Solver Resource Times

• Models for each solver pair outcome. Listed are the solver resource times TIME(.) in seconds, as well as the ratio RATIO(./.) of resource times for the two solvers if both solved optimally.
• 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. If both solutions are less than 1e-1, we use the absolute difference.
• Solver resource time ratios for a particular model are listed only if one solver has resource greater than 5.00E-02.

 Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL/SBB) Obj (LINDOGLOBAL) Obj (SBB) alan 0.0250 0.2080 0.120 2.92500000 2.92500000 batch 2.2470 0.4870 4.614 285506.50824681 285506.50815158 ex1223 0.0970 0.2150 0.451 4.57958240 4.57958240 ex1223a 0.0220 0.1630 0.135 4.57958240 4.57958240 ex1223b 0.0730 0.2150 0.340 4.57958240 4.57958240 fac3 53.8090 0.5570 96.605 31982309.84800090 31982309.84800000 m3 1.6960 1.1120 1.525 37.79999992 37.80000000 nvs03 0.0270 0.2040 0.132 16.00000000 16.00000000 risk2bpb 2.2250 0.5240 4.246 -55.87613939 -55.73616850 st_e14 0.1490 0.2140 0.696 4.57958240 4.57958240 st_miqp1 0.0310 0.2000 0.155 281.00000000 281.00000000 st_miqp2 0.0440 0.2720 0.162 2.00000000 2.00000000 st_test5 0.0290 0.3790 0.077 -110.00000000 -110.00000000 st_test6 0.0370 0.4920 0.075 471.00000000 471.00000000 st_test8 0.0290 0.1410 0.206 -29605.00000000 -29605.00000000 synthes1 0.0440 0.1670 0.263 6.00975902 6.00975891 synthes2 0.5900 0.2650 2.226 73.03531253 73.03531253 synthes3 4.3810 0.4320 10.141 68.00974052 68.00974052 st_testgr3 11.1490 0.3160 35.282 -20.59000000 -20.46880000 st_testph4 0.0110 0.3650 0.030 -80.50000000 -80.50000000

 Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL/SBB) Obj (LINDOGLOBAL) Obj (SBB) du-opt5 2047.5980 21.3160 96.059 8.07365758 8.07365758 du-opt 270.9360 1.7230 157.247 3.55634006 3.55699635 fac1 0.3610 0.2300 1.570 160912612.35017100 160912612.35016900 fo7 3600.3070 6719.6300 0.536 29.54373631 30.03641833 m6 495.2620 2884.9770 0.172 82.25687760 82.25687691 m7 3600.4280 5959.9000 0.604 106.75687693 123.96437781 meanvarx 0.0820 0.2120 0.387 14.36923211 14.49698300 nvs10 0.0170 0.1480 0.115 -310.80000000 -310.80000000 o7 3600.4330 6631.9400 0.543 151.30711666 181.46472807 st_miqp4 0.0060 0.1340 0.045 -4574.00000000 -4574.00000000 st_testgr1 1.4540 0.3260 4.460 -12.81160000 -12.72810000 stockcycle 310.0830 591.1400 0.525 120532.62166667 119948.68833333

 Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL/SBB) Obj (LINDOGLOBAL) Status (SBB) tls6 3600.8170 10020.9100 --- 20.70000003 mstat(14) sstat( 8) tls7 3602.9820 5234.9090 --- 22.50000000 mstat(13) sstat(13)

 Modelname Time (LINDOGLOBAL) Time (SBB) Ratio (LINDOGLOBAL/SBB) Status (LINDOGLOBAL) Status (SBB) tls12 3607.4790 11222.8460 --- mstat(14) sstat( 3) mstat(14) sstat( 8)

 Modelname Time (LINDOGLOBAL) Obj (LINDOGLOBAL) alan 0.0250 2.92500000 batch 2.2470 285506.50824681 ex1223 0.0970 4.57958240 ex1223a 0.0220 4.57958240 ex1223b 0.0730 4.57958240 fac3 53.8090 31982309.84800090 gbd 0.0090 2.20000000 m3 1.6960 37.79999992 nvs03 0.0270 16.00000000 risk2bpb 2.2250 -55.87613939 st_e14 0.1490 4.57958240 st_miqp1 0.0310 281.00000000 st_miqp2 0.0440 2.00000000 st_miqp3 0.0080 -6.00000000 st_miqp5 0.0120 -333.88888889 st_test5 0.0290 -110.00000000 st_test6 0.0370 471.00000000 st_test8 0.0290 -29605.00000000 synthes1 0.0440 6.00975902 synthes2 0.5900 73.03531253 synthes3 4.3810 68.00974052 st_testgr3 11.1490 -20.59000000 st_testph4 0.0110 -80.50000000

 Modelname Time (LINDOGLOBAL) Obj (LINDOGLOBAL) du-opt5 2047.5980 8.07365758 du-opt 270.9360 3.55634006 fac1 0.3610 160912612.35017100 fo7 3600.3070 29.54373631 m6 495.2620 82.25687760 m7 3600.4280 106.75687693 meanvarx 0.0820 14.36923211 nvs10 0.0170 -310.80000000 o7 3600.4330 151.30711666 st_miqp4 0.0060 -4574.00000000 tls6 3600.8170 20.70000003 tls7 3602.9820 22.50000000 st_testgr1 1.4540 -12.81160000 stockcycle 310.0830 120532.62166667

 Modelname Time (LINDOGLOBAL) Status (LINDOGLOBAL) tls12 -- mstat(14) sstat( 3)

 Modelname Time (SBB) Obj (SBB) alan 0.2080 2.92500000 batch 0.4870 285506.50815158 du-opt5 21.3160 8.07365758 du-opt 1.7230 3.55699635 ex1223 0.2150 4.57958240 ex1223a 0.1630 4.57958240 ex1223b 0.2150 4.57958240 fac1 0.2300 160912612.35016900 fac3 0.5570 31982309.84800000 fo7 6719.6300 30.03641833 m3 1.1120 37.80000000 m6 2884.9770 82.25687691 m7 5959.9000 123.96437781 meanvarx 0.2120 14.49698300 nvs03 0.2040 16.00000000 nvs10 0.1480 -310.80000000 o7 6631.9400 181.46472807 risk2bpb 0.5240 -55.73616850 st_e14 0.2140 4.57958240 st_miqp1 0.2000 281.00000000 st_miqp2 0.2720 2.00000000 st_miqp4 0.1340 -4574.00000000 st_test5 0.3790 -110.00000000 st_test6 0.4920 471.00000000 st_test8 0.1410 -29605.00000000 synthes1 0.1670 6.00975891 synthes2 0.2650 73.03531253 synthes3 0.4320 68.00974052 st_testgr1 0.3260 -12.72810000 st_testgr3 0.3160 -20.46880000 st_testph4 0.3650 -80.50000000 stockcycle 591.1400 119948.68833333

 Modelname Time (SBB) Status (SBB) tls12 -- mstat(14) sstat( 8) tls6 -- mstat(14) sstat( 8) tls7 -- mstat(13) sstat(13)