## Solver Square Comparison: Considers all models.

 Date / Time: 08/24/07 21:45:30

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

 SBB: optimal SBB: feasible SBB: infeasible SBB: unbounded SBB: fail SBB: no data total ALPHAECP ALPHAECP: optimal - - - - - - - ALPHAECP: feasible - 30 - - 2 - 32 ALPHAECP: infeasible - - - - - - - ALPHAECP: unbounded - - - - - - - ALPHAECP: fail - 1 - - 3 - 4 ALPHAECP: no data - - - - - - - total SBB - 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 (ALPHAECP) Time (SBB) Ratio (ALPHAECP/SBB) Obj (ALPHAECP) Obj (SBB) alan 1.0000 0.0100 100.000 2.92500000 2.92500000 batch 2.0000 0.2300 8.696 285506.48149069 285506.50815158 du-opt 1124.0000 1.7400 645.977 3.55567908 3.56108965 du-opt5 453.0000 20.8200 21.758 8.07307759 8.07365758 ex1223 3.0000 0.0600 50.000 4.57957678 4.57958240 ex1223a 3.0000 0.0100 300.000 4.57957997 4.57958240 ex1223b 3.0000 0.0000 +INF.000 4.57957678 4.57958240 fac1 83.0000 0.0100 8300.000 160912612.35016900 160912612.35016900 fac3 8.0000 0.2900 27.586 31982309.84800000 31982309.84800000 m3 2.0000 0.4000 5.000 37.80000000 37.80000000 m6 7.0000 196.7700 0.036 82.25687690 129.82493644 m7 33.0000 223.4600 0.148 106.75687690 123.96437781 meanvarx 1.0000 0.0200 50.000 14.36907510 14.49698300 nvs03 1.0000 0.0200 50.000 16.00000000 16.00000000 nvs10 2.0000 0.0200 100.000 -310.80000000 -310.80000000 risk2bpb 2.0000 0.4200 4.762 -55.87613940 -55.73616850 st_e14 2.0000 0.0200 100.000 4.57957678 4.57958240 st_miqp1 1.0000 0.0300 33.333 281.00000000 281.00000000 st_miqp2 1.0000 0.0300 33.333 2.00000000 2.00000000 st_miqp4 1.0000 0.0000 +INF.000 -4574.00000000 -4574.00000000 stockcycle 3600.0000 98.0100 36.731 436419.12998549 143295.16500000 st_test5 1.0000 0.0600 16.667 -110.00000000 -110.00000000 st_test6 1.0000 0.0900 11.111 471.00000000 471.00000000 st_test8 1.0000 0.0100 100.000 -29605.00000000 -29605.00000000 st_testgr1 2.0000 0.0400 50.000 -12.81160000 -12.72810000 st_testgr3 1.0000 0.0600 16.667 -20.59000000 -20.46880000 st_testph4 1.0000 0.0200 50.000 -80.50000000 -80.50000000 synthes1 1.0000 0.0300 33.333 6.00965002 6.00975891 synthes2 5.0000 0.0400 125.000 73.03454960 73.03531253 synthes3 4.0000 0.1800 22.222 68.00932736 68.00974052

 Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP/SBB) Obj (ALPHAECP) Status (SBB) fo7 504.0000 324.9200 --- 20.72918438 mstat(14) sstat( 4) o7 3606.0000 317.6600 --- 153.81988735 mstat(14) sstat( 4)

 Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP/SBB) Status (ALPHAECP) Obj (SBB) risk2b 4.0000 0.3900 --- mstat(14) sstat(10) -55.73616850

 Modelname Time (ALPHAECP) Time (SBB) Ratio (ALPHAECP/SBB) Status (ALPHAECP) Status (SBB) tls12 3601.0000 578.4800 --- mstat(14) sstat( 3) mstat(14) sstat( 4) tls6 3600.0000 173.5400 --- mstat(14) sstat( 3) mstat(14) sstat( 4) tls7 3601.0000 259.4800 --- mstat(14) sstat( 3) mstat(14) sstat( 4)

 Modelname Time (ALPHAECP) Obj (ALPHAECP) alan 1.0000 2.92500000 batch 2.0000 285506.48149069 du-opt 1124.0000 3.55567908 du-opt5 453.0000 8.07307759 ex1223 3.0000 4.57957678 ex1223a 3.0000 4.57957997 ex1223b 3.0000 4.57957678 fac1 83.0000 160912612.35016900 fac3 8.0000 31982309.84800000 fo7 504.0000 20.72918438 gbd 1.0000 2.20000000 m3 2.0000 37.80000000 m6 7.0000 82.25687690 m7 33.0000 106.75687690 meanvarx 1.0000 14.36907510 nvs03 1.0000 16.00000000 nvs10 2.0000 -310.80000000 o7 3606.0000 153.81988735 risk2bpb 2.0000 -55.87613940 st_e14 2.0000 4.57957678 st_e35 0.0000 107419.80448037 st_miqp1 1.0000 281.00000000 st_miqp2 1.0000 2.00000000 st_miqp3 1.0000 -6.00000000 st_miqp4 1.0000 -4574.00000000 st_miqp5 1.0000 -333.88903104 stockcycle 3600.0000 436419.12998549 st_test5 1.0000 -110.00000000 st_test6 1.0000 471.00000000 st_test8 1.0000 -29605.00000000 st_testgr1 2.0000 -12.81160000 st_testgr3 1.0000 -20.59000000 st_testph4 1.0000 -80.50000000 synthes1 1.0000 6.00965002 synthes2 5.0000 73.03454960 synthes3 4.0000 68.00932736

 Modelname Time (ALPHAECP) Status (ALPHAECP) risk2b -- mstat(14) sstat(10) tls12 -- mstat(14) sstat( 3) tls6 -- mstat(14) sstat( 3) tls7 -- mstat(14) sstat( 3)

 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