mixed integer programming - Complexity of LP and MILP Problems ...
Nov 11, 2019 · My original problem is an MILP. I make it an LP by relaxing the integer variables. Can someone please comment on the complexity, solvability and optimality of MILP and LP problems, in …
Runtime of LP vs MILP - Operations Research Stack Exchange
Runtime of LP vs MILP Ask Question Asked 2 years, 6 months ago Modified 2 years, 6 months ago
What is the best open-source solver for large-scale MILP optimization?
Jul 7, 2024 · Currentlly, I am using ortools with SCIP/CBC solvers for a large scale optimization problem, which turned out to be quite slow. The integer part of my problem is due to a piece-wise linear …
MILP: is it NP-complete or NP-hard?
Nov 12, 2019 · The pieces of information I get online are sometimes confusing. Someone says MILP problems are NP-hard, and somewhere else I found the claim that MILP problems are NP-complete. …
How can I identify the reason that makes a MILP model hard for solvers ...
Sep 25, 2020 · For a MIP, out of memory exceptions typically happen when the tree size becomes very large. If your LP relaxation is weak, then intuitively your model may become easier if you can figure …
mixed integer programming - Guides for strong MILP Formulations ...
Is the scientific community able to provide a guide for addressing the strength of a MILP formulation? Something like "disciplined convex programming" but for strong MILPs, lets call it "disciplined MILP …
How can I find the shortest path visiting all nodes in a connected ...
Jul 28, 2023 · I am looking for an idea on how to formulate the following problem as a MILP. Given a connected graph, find the shortest path route starting from a node (not given) and visit all other …
mixed integer programming - Open Source MILP software for Python …
Jan 28, 2020 · It's a Mixed Integer Linear Programming problem, thus I need an Open Source MILP solver, and a modeler. The constraints are probably very simple for you guys, but since I'm not …
What is the difference bewteen CP and MILP approaches in Job Shop ...
Jul 14, 2022 · I do have a large-scale Job Shop Scheduling problem (40k binary variables) and I need to find a fast and efficient way of finding a feasible solution (preferably without any commercial solver). I …
mixed integer programming - How does a warm start work in LP/MIP ...
22 Can someone explain how warm starts/ MIP starts work? How do solvers like CPLEX/GUROBI use warm start with the Simplex algorithm? I am interested in understanding how the entire warm start …