| Gapst of GT problem | ||||||||||||
| Type | Nodes | Arcs | Comms | Lower Bound/ Gurobi/ 120h | Upper Bound/ Gurobi/ 120h | CPLEX | CPLEX SP | IP SEARCH | PARLS | Capacity Scaling and Neighbor Search750 | Capacity Scaling and Neighbor Search750 Best | |
| F_L | 500 | 2000 | 50 | 3496049 | 3742004 | 3882110 | 3726114 | 3823610 | 3722839 | 3703340 | 3684997 | |
| F_L | 500 | 2000 | 100 | 5612839 | 6194571 | 6706100 | 6404834 | 6453880 | 6005177 | 6030640 | 6004733 | |
| F_L | 500 | 2000 | 150 | 6863228 | 7691938 | 8205000 | 7886028 | 8081600 | 7510651 | 7548055 | 7496026 | |
| F_L | 500 | 2000 | 200 | 8165040 | 9183930 | 10181700 | 10376103 | 9828350 | 9338097 | 8986462 | 8980066 | |
| F_L | 500 | 2500 | 50 | 3211475 | 3544207 | 3818440 | 3507652 | 3612030 | 3491664 | 3517483 | 3439095 | |
| F_L | 500 | 2500 | 100 | 5144270 | 5860749 | 6893490 | 6187629 | 6400140 | 5909401 | 5775371 | 5735142 | |
| F_L | 500 | 2500 | 150 | 6818030 | 8447780 | 10022900 | 9520783 | 9089920 | 8138918 | 7997256 | 7895858 | |
| F_L | 500 | 2500 | 200 | 8061178 | 10853172 | 11937300 | 11566824 | 10099200 | 9788913 | 9307056 | 9273254 | |
| F_L | 500 | 3000 | 50 | 2989771 | 3396814 | 3668660 | 3492641 | 3457280 | 3369303 | 3309589 | 3309589 | |
| F_L | 500 | 3000 | 100 | 5012129 | 5834588 | 6692780 | 6187593 | 6015950 | 5773133 | 5620093 | 5564106 | |
| F_L | 500 | 3000 | 150 | 6449785 | 7819641 | 9378030 | 9479082 | 8919720 | 7741294 | 7571267 | 7471066 | |
| F_L | 500 | 3000 | 200 | 7459169 | 9332126 | 11240900 | 11291918 | 10040000 | 9195115 | 8763465 | 8729617 | |
| F_T | 500 | 2000 | 50 | 4217499 | 5109233 | 5038580 | 5100186 | 4949780 | 4892012 | 4891370 | 4851979 | |
| F_T | 500 | 2000 | 100 | 6380988 | 7478374 | 7592260 | 7381313 | 7619670 | 7273916 | 7390874 | 7248610 | |
| F_T | 500 | 2000 | 150 | 7256504 | 8237938 | 8640390 | 9083303 | 8807650 | 8014986 | 8047994 | 7916400 | |
| F_T | 500 | 2000 | 200 | 8852715 | 11187154 | 11858000 | 11213371 | 11893100 | 10617796 | 10540260 | 10452886 | |
| F_T | 500 | 2500 | 50 | 3837741 | 4587008 | 4585510 | 4448739 | 4600200 | 4406080 | 4364086 | 4364086 | |
| F_T | 500 | 2500 | 100 | 5301129 | 6586216 | 6942260 | 6559397 | 6953660 | 6365848 | 6392506 | 6282050 | |
| F_T | 500 | 2500 | 150 | 6120540 | 7036284 | 8094410 | 7978909 | 7571640 | 7037860 | 6878660 | 6878660 | |
| F_T | 500 | 2500 | 200 | 8611901 | 10969518 | 11963100 | 11911900 | 11452900 | 10727261 | 10429633 | 10429633 | |
| F_T | 500 | 3000 | 50 | 3496170 | 4321728 | 4333310 | 4069239 | 4262350 | 4035362 | 4164508 | 4060444 | |
| F_T | 500 | 3000 | 100 | 5408225 | 6880936 | 7164410 | 7046750 | 7186810 | 6634387 | 6565356 | 6518955 | |
| F_T | 500 | 3000 | 150 | 6260998 | 7750637 | 8773910 | 8172602 | 8709390 | 7517445 | 7526917 | 7442878 | |
| F_T | 500 | 3000 | 200 | 7673931 | 9756073 | 11236600 | 11354647 | 10390700 | 9751002 | 9581707 | 9498508 | |
| Average | 5945888 | 7158442 | 7868756 | 7664482 | 7509147 | 6969103 | 6870998 | 6813693 | ||||
| Gaps | ||||||||||||
| Type | Nodes | Arcs | Comms | Lower Bound/ Gurobi/ 120h | Upper Bound/ Gurobi/ 120h | CPLEX | CPLEX SP | IP SEARCH | PARLS | Capacity Scaling and Neighbor Search750 | Capacity Scaling and Neighbor Search750 Best | |
| F_L | 500 | 2000 | 50 | - | 7.0% | 11.0% | 6.6% | 9.4% | 6.5% | 5.9% | 5.4% | |
| F_L | 500 | 2000 | 100 | - | 10.4% | 19.5% | 14.1% | 15.0% | 7.0% | 7.4% | 7.0% | |
| F_L | 500 | 2000 | 150 | - | 12.1% | 19.6% | 14.9% | 17.8% | 9.4% | 10.0% | 9.2% | |
| F_L | 500 | 2000 | 200 | - | 12.5% | 24.7% | 27.1% | 20.4% | 14.4% | 10.1% | 10.0% | |
| F_L | 500 | 2500 | 50 | - | 10.4% | 18.9% | 9.2% | 12.5% | 8.7% | 9.5% | 7.1% | |
| F_L | 500 | 2500 | 100 | - | 13.9% | 34.0% | 20.3% | 24.4% | 14.9% | 12.3% | 11.5% | |
| F_L | 500 | 2500 | 150 | - | 23.9% | 47.0% | 39.6% | 33.3% | 19.4% | 17.3% | 15.8% | |
| F_L | 500 | 2500 | 200 | - | 34.6% | 48.1% | 43.5% | 25.3% | 21.4% | 15.5% | 15.0% | |
| F_L | 500 | 3000 | 50 | - | 13.6% | 22.7% | 16.8% | 15.6% | 12.7% | 10.7% | 10.7% | |
| F_L | 500 | 3000 | 100 | - | 16.4% | 33.5% | 23.5% | 20.0% | 15.2% | 12.1% | 11.0% | |
| F_L | 500 | 3000 | 150 | - | 21.2% | 45.4% | 47.0% | 38.3% | 20.0% | 17.4% | 15.8% | |
| F_L | 500 | 3000 | 200 | - | 25.1% | 50.7% | 51.4% | 34.6% | 23.3% | 17.5% | 17.0% | |
| F_T | 500 | 2000 | 50 | - | 21.1% | 19.5% | 20.9% | 17.4% | 16.0% | 16.0% | 15.0% | |
| F_T | 500 | 2000 | 100 | - | 17.2% | 19.0% | 15.7% | 19.4% | 14.0% | 15.8% | 13.6% | |
| F_T | 500 | 2000 | 150 | - | 13.5% | 19.1% | 25.2% | 21.4% | 10.5% | 10.9% | 9.1% | |
| F_T | 500 | 2000 | 200 | - | 26.4% | 33.9% | 26.7% | 34.3% | 19.9% | 19.1% | 18.1% | |
| F_T | 500 | 2500 | 50 | - | 19.5% | 19.5% | 15.9% | 19.9% | 14.8% | 13.7% | 13.7% | |
| F_T | 500 | 2500 | 100 | - | 24.2% | 31.0% | 23.7% | 31.2% | 20.1% | 20.6% | 18.5% | |
| F_T | 500 | 2500 | 150 | - | 15.0% | 32.2% | 30.4% | 23.7% | 15.0% | 12.4% | 12.4% | |
| F_T | 500 | 2500 | 200 | - | 27.4% | 38.9% | 38.3% | 33.0% | 24.6% | 21.1% | 21.1% | |
| F_T | 500 | 3000 | 50 | - | 23.6% | 23.9% | 16.4% | 21.9% | 15.4% | 19.1% | 16.1% | |
| F_T | 500 | 3000 | 100 | - | 27.2% | 32.5% | 30.3% | 32.9% | 22.7% | 21.4% | 20.5% | |
| F_T | 500 | 3000 | 150 | - | 23.8% | 40.1% | 30.5% | 39.1% | 20.1% | 20.2% | 18.9% | |
| F_T | 500 | 3000 | 200 | - | 27.1% | 46.4% | 48.0% | 35.4% | 27.1% | 24.9% | 23.8% | |
| Average Gaps | - | 19.5% | 30.5% | 26.5% | 24.8% | 16.4% | 15.0% | 14.0% | ||||
| Computation Times | ||||||||||||
| Type | Nodes | Arcs | Comms | Lower Bound/ Gurobi/ 120h | Upper Bound/ Gurobi/ 120h | CPLEX | CPLEX SP | IP SEARCH | PARLS | Capacity Scaling and Neighbor Search750 | Capacity Scaling and Neighbor Search750 Best | |
| F_L | 500 | 2000 | 50 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 6304 | 5545 | |
| F_L | 500 | 2000 | 100 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 9041 | 5456 | |
| F_L | 500 | 2000 | 150 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 9630 | 19228 | |
| F_L | 500 | 2000 | 200 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 12410 | 15962 | |
| F_L | 500 | 2500 | 50 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 4335 | 4870 | |
| F_L | 500 | 2500 | 100 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 9577 | 13858 | |
| F_L | 500 | 2500 | 150 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 17284 | 29721 | |
| F_L | 500 | 2500 | 200 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 20788 | 19606 | |
| F_L | 500 | 3000 | 50 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 5983 | 5983 | |
| F_L | 500 | 3000 | 100 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 10657 | 15333 | |
| F_L | 500 | 3000 | 150 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 18574 | 33774 | |
| F_L | 500 | 3000 | 200 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 38514 | 29030 | |
| F_T | 500 | 2000 | 50 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 7004 | 5539 | |
| F_T | 500 | 2000 | 100 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 7095 | 9268 | |
| F_T | 500 | 2000 | 150 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 12884 | 15090 | |
| F_T | 500 | 2000 | 200 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 12652 | 15776 | |
| F_T | 500 | 2500 | 50 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 3673 | 3673 | |
| F_T | 500 | 2500 | 100 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 11606 | 12520 | |
| F_T | 500 | 2500 | 150 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 24606 | 24606 | |
| F_T | 500 | 2500 | 200 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 17873 | 17873 | |
| F_T | 500 | 3000 | 50 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 7073 | 6048 | |
| F_T | 500 | 3000 | 100 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 9686 | 11477 | |
| F_T | 500 | 3000 | 150 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 14562 | 20761 | |
| F_T | 500 | 3000 | 200 | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 16129 | 19860 | |
| Average | 432000 | 432000 | 18000 | 18000 | 3600 | 3600 | 12831 | 15036 | ||||
| Lower Bound/ Gurobi7/ 60h | N. Katayama by Gurobi Ver7, 2018. | |||||||||||
| Upper Bound/ Gurobi/ 60h | N. Katayama by Gurobi Ver7, 2018. | |||||||||||
| CPLEX | L.M. Munguía, S. Ahmed, D.A. Bader, G.L. Nemhauser, V. Goel, Y. Shao, A parallel local search framework for the Fixed-Charge Multicommodity Network Flow problem, Computers & Operations Research, 77, 44-57, 2017. | |||||||||||
| CPLEX SP | L.M. Munguía, S. Ahmed, D.A. Bader, G.L. Nemhauser, V. Goel, Y. Shao, A parallel local search framework for the Fixed-Charge Multicommodity Network Flow problem, Computers & Operations Research, 77, 44-57, 2017. | |||||||||||
| IP SEARCH | M. Hewitt, G. L. Nemhauser, and M. Savelsbergh. Combining exact and heuristics approaches for the capacitated fixed charge network flow problem. Journal on Computing, 22, 314-325, 2010. | |||||||||||
| PARLS | L.M. Munguía, S. Ahmed, D.A. Bader, G.L. Nemhauser, V. Goel, Y. Shao, A parallel local search framework for the Fixed-Charge Multicommodity Network Flow problem, Computers & Operations Research, 77, 44-57, 2017. | |||||||||||
| Capacity Scaling and Neighbor Search | Naoto Katayama, Working Paper, 2018. | |||||||||||