datadrvnsupchn

4 ms·

1. 1.▲
   by datadrvnsupchn 4y ago

   I'm having a pretty good career in optimization and OR, even in the corporate sector...
2. 2.▲
   by datadrvnsupchn 4y ago

   VRPs are extremely complex MIPs so usually heuristics are used. So ortools is probably the best option in this case for cost.
3. 3.▲
   by datadrvnsupchn 4y ago

   CBC and Symphony for open-source MILP, Gurobi for commercial MILP. OR-Tools for some VRP work. I use R (ompr package) to interface to CBC, Symphony, and Gurobi. HiGHS is looking promising.
4. 4.▲
   by datadrvnsupchn 4y ago

   Honestly that constraint is pretty straightforward to formulate as a MILP. Four machines, each has a starting and ending time as decision variables. Total duration by machine <= 100 hours, and add non-overlapping constraints between th