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 is represented on the left (rows) and solver SBB-IPOPT-WS 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-SBB-2.trc.convex Tracefile 2 : 3-SBB-3.trc.convex Solvers used : SBB-IPOPT SBB-IPOPT-WS Modeltype(s) MINLP

 SBB-IPOPT-WS: optimal SBB-IPOPT-WS: feasible SBB-IPOPT-WS: infeasible SBB-IPOPT-WS: unbounded SBB-IPOPT-WS: fail SBB-IPOPT-WS: no data total SBB-IPOPT SBB-IPOPT: optimal - - - - - - - SBB-IPOPT: feasible - 33 - - - - 33 SBB-IPOPT: infeasible - - - - - - - SBB-IPOPT: unbounded - - - - - - - SBB-IPOPT: fail - - - - 5 - 5 SBB-IPOPT: no data - - - - - - - total SBB-IPOPT-WS - 33 - - 5 - 38

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) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT/SBB-IPOPT-WS) Obj (SBB-IPOPT) Obj (SBB-IPOPT-WS) alan 0.0800 0.1800 0.444 2.92500000 2.92500000 batch 1.7200 1.7600 0.977 285506.50825285 285506.50829025 du-opt 3.9200 2.7600 1.420 3.56468638 3.56468638 du-opt5 52.3300 46.4400 1.127 8.07365758 8.07365758 ex1223 0.2200 0.1800 1.222 4.57958240 4.57958240 ex1223a 0.0800 0.0900 0.889 4.57958240 4.57958240 ex1223b 0.1700 0.1600 1.063 4.57958240 4.57958240 fac1 1.8800 0.4200 4.476 160912612.35016900 160912612.35016900 fac3 7.2900 18.3200 0.398 31982309.84800030 31982309.84800010 gbd 0.0400 0.0300 --- 2.20000000 2.20000000 m3 1.9000 1.9900 0.955 37.80000000 37.80000000 m6 261.6500 248.8800 1.051 106.25687691 82.25687691 m7 270.0900 357.2400 0.756 118.75687691 144.50531537 meanvarx 0.2800 0.2700 1.037 14.40406225 14.40406225 nvs03 0.1500 0.1300 1.154 16.00000000 16.00000000 nvs10 0.0600 0.0500 1.200 -310.80000000 -310.80000000 risk2b 32.0900 37.9900 0.845 -55.73616850 -55.73616850 risk2bpb 20.8300 5.3500 3.893 -55.73616850 -55.73616850 st_e14 0.2000 0.1800 1.111 4.57958240 4.57958240 st_e35 4.0000 2.7200 1.471 64868.07685843 64868.07683726 st_miqp1 0.1300 0.1300 1.000 281.00000000 281.00000000 st_miqp2 0.3000 0.2700 1.111 2.00000000 2.00000000 st_miqp4 0.1300 0.0600 2.167 -3092.82488276 -4573.99999999 stockcycle 31.3700 49.2900 0.636 119948.68833333 119948.68833333 st_test5 0.7100 0.7100 1.000 -110.00000000 -110.00000000 st_test6 0.7700 0.7400 1.041 471.00000000 471.00000000 st_test8 0.0700 0.0500 1.400 -29604.99999999 -29605.00000000 st_testgr1 0.3000 0.2800 1.071 -12.72810000 -12.72810000 st_testgr3 4.1900 3.1500 1.330 -20.52740000 -20.52740000 st_testph4 0.0700 0.0700 1.000 -80.50000000 -80.50000000 synthes1 0.1200 0.1000 1.200 6.00975891 6.00975891 synthes2 0.4500 0.6600 0.682 73.03531253 73.03531256 synthes3 1.3000 3.4300 0.379 68.00974052 68.00974065

 Modelname Time (SBB-IPOPT) Time (SBB-IPOPT-WS) Ratio (SBB-IPOPT/SBB-IPOPT-WS) Status (SBB-IPOPT) Status (SBB-IPOPT-WS) fo7 198.7200 224.8500 --- mstat(14) sstat( 4) mstat(14) sstat( 4) o7 226.7200 250.6600 --- mstat(14) sstat( 4) mstat(14) sstat( 4) tls12 3600.0000 3603.7200 --- mstat(14) sstat( 3) mstat(14) sstat( 3) tls6 3600.6100 3600.6800 --- mstat(14) sstat( 3) mstat(14) sstat( 3) tls7 2353.8500 3600.0100 --- mstat(14) sstat( 4) mstat(14) sstat( 3)

 Modelname Time (SBB-IPOPT) Obj (SBB-IPOPT) alan 0.0800 2.92500000 batch 1.7200 285506.50825285 du-opt 3.9200 3.56468638 du-opt5 52.3300 8.07365758 ex1223 0.2200 4.57958240 ex1223a 0.0800 4.57958240 ex1223b 0.1700 4.57958240 fac1 1.8800 160912612.35016900 fac3 7.2900 31982309.84800030 gbd 0.0400 2.20000000 m3 1.9000 37.80000000 m6 261.6500 106.25687691 m7 270.0900 118.75687691 meanvarx 0.2800 14.40406225 nvs03 0.1500 16.00000000 nvs10 0.0600 -310.80000000 risk2b 32.0900 -55.73616850 risk2bpb 20.8300 -55.73616850 st_e14 0.2000 4.57958240 st_e35 4.0000 64868.07685843 st_miqp1 0.1300 281.00000000 st_miqp2 0.3000 2.00000000 st_miqp4 0.1300 -3092.82488276 stockcycle 31.3700 119948.68833333 st_test5 0.7100 -110.00000000 st_test6 0.7700 471.00000000 st_test8 0.0700 -29604.99999999 st_testgr1 0.3000 -12.72810000 st_testgr3 4.1900 -20.52740000 st_testph4 0.0700 -80.50000000 synthes1 0.1200 6.00975891 synthes2 0.4500 73.03531253 synthes3 1.3000 68.00974052

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