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dirkschumacher / ompr

R package to model Mixed Integer Linear Programs
https://dirkschumacher.github.io/ompr/
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Gurobi Solver- Recent Experience? #420

Closed datadrivensupplychain closed 2 years ago

datadrivensupplychain commented 2 years ago

Discussed in https://github.com/dirkschumacher/ompr/discussions/419

Originally posted by **datadrivensupplychain** April 1, 2022 I'm close to requesting an evaluation license for Gurobi 9.5 - for my current project, the MILP is too complex for Symphony or CBC to solve in a reasonable time (and, I fear, at all). I know that `ROI.plugin.gurobi` is build for Gurobi 9.0. Does anyone have recent experience with using Gurobi as a solver with ompr? Any tips/tricks/warnings for me? Thanks Ralph
datadrivensupplychain commented 2 years ago

I got it to install and work with Gurobi 9.5, here is a cheatsheet of both CBC and Gurobi arguments https://github.com/datadrivensupplychain/teaching_bits/blob/main/ompr_cbc_gurobi_cheatsheet.r