## Solver Square Comparison: Considers all models.

 Date / Time: 08/24/07 21:51:47

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 SBB-CONOPT is represented on the left (rows) and solver SBB-CONOPT-IPOPT 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 : 1-SBB-1.trc.convex Tracefile 2 : 4-SBB-4.trc.convex Solvers used : SBB-CONOPT SBB-CONOPT-IPOPT Modeltype(s) MINLP

 SBB-CONOPT-IPOPT: optimal SBB-CONOPT-IPOPT: feasible SBB-CONOPT-IPOPT: infeasible SBB-CONOPT-IPOPT: unbounded SBB-CONOPT-IPOPT: fail SBB-CONOPT-IPOPT: no data total SBB-CONOPT SBB-CONOPT: optimal - - - - - - - SBB-CONOPT: feasible - 31 - - - - 31 SBB-CONOPT: infeasible - - - - - - - SBB-CONOPT: unbounded - - - - - - - SBB-CONOPT: fail - - - - 5 - 5 SBB-CONOPT: no data - - - - - - - total SBB-CONOPT-IPOPT - 31 - - 5 - 36

### 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 (SBB-CONOPT) Time (SBB-CONOPT-IPOPT) Ratio (SBB-CONOPT/SBB-CONOPT-IPOPT) Obj (SBB-CONOPT) Obj (SBB-CONOPT-IPOPT) alan 0.0100 0.0400 --- 2.92500000 2.92500000 batch 0.2300 0.7200 0.319 285506.50815158 285506.50815158 du-opt 1.7400 1.7300 1.006 3.56108965 3.56108965 du-opt5 20.8200 20.8200 1.000 8.07365758 8.07365758 ex1223 0.0600 0.0400 1.500 4.57958240 4.57958240 ex1223a 0.0100 0.0100 --- 4.57958240 4.57958240 ex1223b 0.0000 0.0300 --- 4.57958240 4.57958240 fac1 0.0100 0.0200 --- 160912612.35016900 160912612.35016900 fac3 0.2900 0.1900 1.526 31982309.84800000 31982309.84800000 m3 0.4000 1.1700 0.342 37.80000000 37.80000000 m6 196.7700 351.4800 0.560 129.82493644 129.82493644 m7 223.4600 425.1600 0.526 123.96437781 123.96437781 meanvarx 0.0200 0.0100 --- 14.49698300 14.49698300 nvs03 0.0200 0.0500 0.400 16.00000000 16.00000000 nvs10 0.0200 0.0100 --- -310.80000000 -310.80000000 risk2b 0.3900 0.3700 1.054 -55.73616850 -55.73616850 risk2bpb 0.4200 0.4300 0.977 -55.73616850 -55.73616850 st_e14 0.0200 0.0400 --- 4.57958240 4.57958240 st_miqp1 0.0300 0.0100 --- 281.00000000 281.00000000 st_miqp2 0.0300 0.0100 --- 2.00000000 2.00000000 st_miqp4 0.0000 0.0000 --- -4574.00000000 -4574.00000000 stockcycle 98.0100 98.6000 0.994 143295.16500000 143295.16500000 st_test5 0.0600 0.0400 1.500 -110.00000000 -110.00000000 st_test6 0.0900 0.1100 0.818 471.00000000 471.00000000 st_test8 0.0100 0.0100 --- -29605.00000000 -29605.00000000 st_testgr1 0.0400 0.0300 --- -12.72810000 -12.72810000 st_testgr3 0.0600 0.0300 2.000 -20.46880000 -20.46880000 st_testph4 0.0200 0.0200 --- -80.50000000 -80.50000000 synthes1 0.0300 0.0100 --- 6.00975891 6.00975891 synthes2 0.0400 0.0800 0.500 73.03531253 73.03531253 synthes3 0.1800 0.1600 1.125 68.00974052 68.00974052

 Modelname Time (SBB-CONOPT) Time (SBB-CONOPT-IPOPT) Ratio (SBB-CONOPT/SBB-CONOPT-IPOPT) Status (SBB-CONOPT) Status (SBB-CONOPT-IPOPT) fo7 324.9200 416.1200 --- mstat(14) sstat( 4) mstat(14) sstat( 4) o7 317.6600 437.5700 --- mstat(14) sstat( 4) mstat(14) sstat( 4) tls12 578.4800 585.2100 --- mstat(14) sstat( 4) mstat(14) sstat( 4) tls6 173.5400 394.3000 --- mstat(14) sstat( 4) mstat(14) sstat( 4) tls7 259.4800 297.2600 --- mstat(14) sstat( 4) mstat(14) sstat( 4)

 Modelname Time (SBB-CONOPT) Obj (SBB-CONOPT) 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

 Modelname Time (SBB-CONOPT) Status (SBB-CONOPT) fo7 -- mstat(14) sstat( 4) o7 -- mstat(14) sstat( 4) tls12 -- mstat(14) sstat( 4) tls6 -- mstat(14) sstat( 4) tls7 -- mstat(14) sstat( 4)

 Modelname Time (SBB-CONOPT-IPOPT) Obj (SBB-CONOPT-IPOPT) alan 0.0400 2.92500000 batch 0.7200 285506.50815158 du-opt 1.7300 3.56108965 du-opt5 20.8200 8.07365758 ex1223 0.0400 4.57958240 ex1223a 0.0100 4.57958240 ex1223b 0.0300 4.57958240 fac1 0.0200 160912612.35016900 fac3 0.1900 31982309.84800000 m3 1.1700 37.80000000 m6 351.4800 129.82493644 m7 425.1600 123.96437781 meanvarx 0.0100 14.49698300 nvs03 0.0500 16.00000000 nvs10 0.0100 -310.80000000 risk2b 0.3700 -55.73616850 risk2bpb 0.4300 -55.73616850 st_e14 0.0400 4.57958240 st_miqp1 0.0100 281.00000000 st_miqp2 0.0100 2.00000000 st_miqp4 0.0000 -4574.00000000 stockcycle 98.6000 143295.16500000 st_test5 0.0400 -110.00000000 st_test6 0.1100 471.00000000 st_test8 0.0100 -29605.00000000 st_testgr1 0.0300 -12.72810000 st_testgr3 0.0300 -20.46880000 st_testph4 0.0200 -80.50000000 synthes1 0.0100 6.00975891 synthes2 0.0800 73.03531253 synthes3 0.1600 68.00974052