## Solver Square Comparison: Considers all models.

 Date / Time: 08/24/07 21:45:31

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 LaGO 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 : 5-LaGO-1.trc.convex Tracefile 2 : 6-SBB-1.trc.convex Solvers used : LaGO SBB Modeltype(s) MINLP

 SBB: optimal SBB: feasible SBB: infeasible SBB: unbounded SBB: fail SBB: no data total LaGO LaGO: optimal - 11 - - - - 11 LaGO: feasible - - - - - - - LaGO: infeasible - - - - - - - LaGO: unbounded - - - - - - - LaGO: fail - 1 - - 5 - 6 LaGO: no data - - - - - - - total SBB - 12 - - 5 - 17

### 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 (LaGO) Time (SBB) Ratio (LaGO/SBB) Obj (LaGO) Obj (SBB) nvs03 0.0410 0.0200 --- 16.00000000 16.00000000 nvs10 0.0620 0.0200 3.100 -310.80000000 -310.80000000 st_miqp1 0.0520 0.0300 1.733 281.00000000 281.00000000 st_miqp2 0.0570 0.0300 1.900 2.00000000 2.00000000 stockcycle 3600.1560 98.0100 36.733 121476.07166667 143295.16500000 st_test5 0.0830 0.0600 1.383 -110.00000000 -110.00000000 st_test6 0.1020 0.0900 1.133 471.00000000 471.00000000 st_test8 0.1480 0.0100 14.800 -29605.00000000 -29605.00000000 st_testgr1 0.0890 0.0400 2.225 -12.78595000 -12.72810000 st_testgr3 0.3220 0.0600 5.367 -20.54560000 -20.46880000 st_testph4 0.0460 0.0200 --- -80.50000000 -80.50000000

 Modelname Time (LaGO) Time (SBB) Ratio (LaGO/SBB) Status (LaGO) Obj (SBB) st_miqp4 0.0670 0.0000 --- mstat(13) sstat(13) -4574.00000000

 Modelname Time (LaGO) Time (SBB) Ratio (LaGO/SBB) Status (LaGO) Status (SBB) fo7 NA 324.9200 --- mstat(13) sstat(13) mstat(14) sstat( 4) o7 NA 317.6600 --- mstat(13) sstat(13) mstat(14) sstat( 4) tls12 NA 578.4800 --- mstat(13) sstat(13) mstat(14) sstat( 4) tls6 NA 173.5400 --- mstat(13) sstat(13) mstat(14) sstat( 4) tls7 NA 259.4800 --- mstat(13) sstat(13) mstat(14) sstat( 4)

 Modelname Time (LaGO) Obj (LaGO) nvs03 0.0410 16.00000000 nvs10 0.0620 -310.80000000 st_miqp1 0.0520 281.00000000 st_miqp2 0.0570 2.00000000 st_miqp3 0.0380 -6.00000000 stockcycle 3600.1560 121476.07166667 st_test5 0.0830 -110.00000000 st_test6 0.1020 471.00000000 st_test8 0.1480 -29605.00000000 st_testgr1 0.0890 -12.78595000 st_testgr3 0.3220 -20.54560000 st_testph4 0.0460 -80.50000000

 Modelname Time (LaGO) Status (LaGO) fo7 -- mstat(13) sstat(13) o7 -- mstat(13) sstat(13) st_miqp4 -- mstat(13) sstat(13) tls12 -- mstat(13) sstat(13) tls6 -- mstat(13) sstat(13) tls7 -- mstat(13) sstat(13)

 Modelname Time (SBB) Obj (SBB) alan 0.0100 2.92500000 batch 0.2300 285506.50815158 du-opt 1.7400 3.56108965 du-opt5 20.8200 8.07365758 ex1223 0.0600 4.57958240 ex1223a 0.0100 4.57958240 ex1223b 0.0000 4.57958240 fac1 0.0100 160912612.35016900 fac3 0.2900 31982309.84800000 m3 0.4000 37.80000000 m6 196.7700 129.82493644 m7 223.4600 123.96437781 meanvarx 0.0200 14.49698300 nvs03 0.0200 16.00000000 nvs10 0.0200 -310.80000000 risk2b 0.3900 -55.73616850 risk2bpb 0.4200 -55.73616850 st_e14 0.0200 4.57958240 st_miqp1 0.0300 281.00000000 st_miqp2 0.0300 2.00000000 st_miqp4 0.0000 -4574.00000000 stockcycle 98.0100 143295.16500000 st_test5 0.0600 -110.00000000 st_test6 0.0900 471.00000000 st_test8 0.0100 -29605.00000000 st_testgr1 0.0400 -12.72810000 st_testgr3 0.0600 -20.46880000 st_testph4 0.0200 -80.50000000 synthes1 0.0300 6.00975891 synthes2 0.0400 73.03531253 synthes3 0.1800 68.00974052