EURO 2022

July 3-6, 2022

Join us in Espoo, Finland at the 32nd EURO Conference.

Gurobi Optimization is a Silver Sponsor at the EURO 2022 event from July 3-6,  at Aalto University in Espoo, Finlad. Gurobi technical experts will be presenting two sessions:

Software for LP/MIP I Stream: Software for Optimization  – “What’s New in Gurobi 9.5” by Michael Winkler, Senior Developer, Gurobi Optimization

Date and Time: Monday, July 4, 14:30-16:00 – U356

Abstract: In this session, we will give an overview of recent enhancements, new feature and performance improvements in our Gurobi 9.5 release.

Optimization Software: Other Topics I Stream: Software for Optimization – “Understanding Solver Logs and Parameter Tuning” by Mario Ruthmair, Optimization Engineer, Gurobi Optimization

Date and Time: Wednesday, July 6, 8:30-10:00 – U356

Abstract: In this short tutorial we discuss the log output of Gurobi’s solver based on some exemplary models. We identify important information re- lated to model characteristics and the solution progress. Based on this we suggest actions to improve the solution performance in terms of decreasing runtime or the residual MIP gap when a time limit is set. These actions might refer to model reformulations, e.g., to compensate for observed numerical issues or weak dual bounds. We also consider solver parameter settings that are deduced from the logs and focus on phases in the solution process that are not handled efficiently with de- fault settings for the investigated models. The log and parameter discussions are illustrated with Gurobi 9.5.1 but the findings might also be applicable to other solvers that often have similar outputs and parameters.

 

We hope to see you there!