## 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-IPOPT-WS 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 : 3-SBB-3.trc.convex Tracefile 2 : 4-SBB-4.trc.convex Solvers used : SBB-IPOPT-WS 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-IPOPT-WS SBB-IPOPT-WS: optimal - - - - - - - SBB-IPOPT-WS: feasible - 31 - - - - 31 SBB-IPOPT-WS: infeasible - - - - - - - SBB-IPOPT-WS: unbounded - - - - - - - SBB-IPOPT-WS: fail - - - - 5 - 5 SBB-IPOPT-WS: 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-IPOPT-WS) Time (SBB-CONOPT-IPOPT) Ratio (SBB-IPOPT-WS/SBB-CONOPT-IPOPT) Obj (SBB-IPOPT-WS) Obj (SBB-CONOPT-IPOPT) alan 0.1800 0.0400 4.500 2.92500000 2.92500000 batch 1.7600 0.7200 2.444 285506.50829025 285506.50815158 du-opt 2.7600 1.7300 1.595 3.56468638 3.56108965 du-opt5 46.4400 20.8200 2.231 8.07365758 8.07365758 ex1223 0.1800 0.0400 4.500 4.57958240 4.57958240 ex1223a 0.0900 0.0100 9.000 4.57958240 4.57958240 ex1223b 0.1600 0.0300 5.333 4.57958240 4.57958240 fac1 0.4200 0.0200 21.000 160912612.35016900 160912612.35016900 fac3 18.3200 0.1900 96.421 31982309.84800010 31982309.84800000 m3 1.9900 1.1700 1.701 37.80000000 37.80000000 m6 248.8800 351.4800 0.708 82.25687691 129.82493644 m7 357.2400 425.1600 0.840 144.50531537 123.96437781 meanvarx 0.2700 0.0100 27.000 14.40406225 14.49698300 nvs03 0.1300 0.0500 2.600 16.00000000 16.00000000 nvs10 0.0500 0.0100 5.000 -310.80000000 -310.80000000 risk2b 37.9900 0.3700 102.676 -55.73616850 -55.73616850 risk2bpb 5.3500 0.4300 12.442 -55.73616850 -55.73616850 st_e14 0.1800 0.0400 4.500 4.57958240 4.57958240 st_miqp1 0.1300 0.0100 13.000 281.00000000 281.00000000 st_miqp2 0.2700 0.0100 27.000 2.00000000 2.00000000 st_miqp4 0.0600 0.0000 +INF.000 -4573.99999999 -4574.00000000 stockcycle 49.2900 98.6000 0.500 119948.68833333 143295.16500000 st_test5 0.7100 0.0400 17.750 -110.00000000 -110.00000000 st_test6 0.7400 0.1100 6.727 471.00000000 471.00000000 st_test8 0.0500 0.0100 5.000 -29605.00000000 -29605.00000000 st_testgr1 0.2800 0.0300 9.333 -12.72810000 -12.72810000 st_testgr3 3.1500 0.0300 105.000 -20.52740000 -20.46880000 st_testph4 0.0700 0.0200 3.500 -80.50000000 -80.50000000 synthes1 0.1000 0.0100 10.000 6.00975891 6.00975891 synthes2 0.6600 0.0800 8.250 73.03531256 73.03531253 synthes3 3.4300 0.1600 21.438 68.00974065 68.00974052

 Modelname Time (SBB-IPOPT-WS) Time (SBB-CONOPT-IPOPT) Ratio (SBB-IPOPT-WS/SBB-CONOPT-IPOPT) Status (SBB-IPOPT-WS) Status (SBB-CONOPT-IPOPT) fo7 224.8500 416.1200 --- mstat(14) sstat( 4) mstat(14) sstat( 4) o7 250.6600 437.5700 --- mstat(14) sstat( 4) mstat(14) sstat( 4) tls12 3603.7200 585.2100 --- mstat(14) sstat( 3) mstat(14) sstat( 4) tls6 3600.6800 394.3000 --- mstat(14) sstat( 3) mstat(14) sstat( 4) tls7 3600.0100 297.2600 --- mstat(14) sstat( 3) mstat(14) sstat( 4)

 Modelname Time (SBB-IPOPT-WS) Obj (SBB-IPOPT-WS) alan 0.1800 2.92500000 batch 1.7600 285506.50829025 du-opt 2.7600 3.56468638 du-opt5 46.4400 8.07365758 ex1223 0.1800 4.57958240 ex1223a 0.0900 4.57958240 ex1223b 0.1600 4.57958240 fac1 0.4200 160912612.35016900 fac3 18.3200 31982309.84800010 gbd 0.0300 2.20000000 m3 1.9900 37.80000000 m6 248.8800 82.25687691 m7 357.2400 144.50531537 meanvarx 0.2700 14.40406225 nvs03 0.1300 16.00000000 nvs10 0.0500 -310.80000000 risk2b 37.9900 -55.73616850 risk2bpb 5.3500 -55.73616850 st_e14 0.1800 4.57958240 st_e35 2.7200 64868.07683726 st_miqp1 0.1300 281.00000000 st_miqp2 0.2700 2.00000000 st_miqp4 0.0600 -4573.99999999 stockcycle 49.2900 119948.68833333 st_test5 0.7100 -110.00000000 st_test6 0.7400 471.00000000 st_test8 0.0500 -29605.00000000 st_testgr1 0.2800 -12.72810000 st_testgr3 3.1500 -20.52740000 st_testph4 0.0700 -80.50000000 synthes1 0.1000 6.00975891 synthes2 0.6600 73.03531256 synthes3 3.4300 68.00974065

 Modelname Time (SBB-IPOPT-WS) Status (SBB-IPOPT-WS) fo7 -- mstat(14) sstat( 4) o7 -- mstat(14) sstat( 4) tls12 -- mstat(14) sstat( 3) tls6 -- mstat(14) sstat( 3) tls7 -- mstat(14) sstat( 3)

 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