Solver Max - Discord OR-Tools

This Discord provides a place to discuss topics relating to Google's OR-Tools. The developers are active in the community.

Channels include:

Routing questions.
CP SAT questions.
General discussion about OR-Tools.

See: Discord OR-Tools.

Essential reading

We describe an example of how to represent price breaks in a linear programming model, built in Excel using Solver or OpenSolver.
Job sequencing is a common problem. Excel Solver can help you make optimal job sequencing decisions to minimize cost.
To compare optimization modelling in Excel and Python, we replicate a Python model then compare it with an equivalent Excel implementation.
Designing an optimization model is difficult. This article explains common mathematical notation used to define optimization model formulations.
We replicate a wood cutting pattern model from a published academic paper. Surprisingly, we find a better optimal solution.
This article replicates and extends a transportation optimization model for managing a COVID-19 vaccination plan in Hong Kong.
Optimal facility location is a common & difficult decision that organizations need to make. We build a location optimization model in Excel.
Minimize the number of racks to store all pallets in a warehouse, freeing space for other activities and allowing company growth.
We estimate the speed improvement for optimization solvers in the 35 years from 1989 to 2024. The results may be surprising.
We compare a linear programming model written using Julia/JuMP with the same model written using Python/Pyomo.
We've collated many interesting optimization models in our GitHub repository. The focus is on Excel and Python models.
Why does my model find different solutions? Some solutions are better than others – how can that be? How do I find the best solution?

Discord OR-Tools

Essential reading

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