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Webinar Summary

If you’ve ever used Gurobi, you’ve seen our log files, which contain loads of information about presolve, root relaxation, and node throughput for each model. Imagine you want to analyze dozens or even hundreds of these log files to see if tweaking a parameter made a difference in terms of performance.

“Grblogtools” is a new tool that allows you to do just that. It reads log files and creates a pandas DataFrame or Excel spreadsheet from them. And if you create a pandas DataFrame, automated widgets and plotting routines are also provided – enabling you to create pictures that summarize Gurobi performance across a broad set of parameter settings with only three lines of code!

Grblogtools – which is used daily by Gurobi’s Support team – is now available to Gurobi users as an open-source package.

In this webinar, you will learn how to:
  • Transform a set of log files into intuitive plots.
  • Parse log files to generate pandas DataFrames or Excel spreadsheets.
  • Use visualization tools to explore and analyze the results.
  • Quickly aggregate information from many different optimization runs.

Presented Materials

Download the log file, here.

Meet the Experts

Matthias Miltenberger

Optimization Support Manager

Matthias Miltenberger is a mathematician living in Berlin. After graduating from Technical University Berlin he worked for several years developing, maintaining and supporting the SCIP Optimization Suite at the Zuse Institute Berlin with a focus on linear programming in the context of mixed-integer optimization.

Dr. Richard Oberdieck

Technical Account Manager – EMEAI

Dr. Richard Oberdieck is a Technical Account Manager at Gurobi Optimization. He obtained his BSc and MSc degrees from ETH Zurich in Switzerland (2009-2013), before pursuing a Ph.D. in Chemical Engineering at Imperial College London, UK, which he completed in 2017. In his PhD, he worked on a special class of optimization problems called multi-parametric programming problems, where he discovered fundamental new properties related to these problems, as well as implemented them in a software toolbox.

Dr. Ed Klotz

Senior Mathematical Optimization Specialist

Dr. Ed Klotz has nearly 30 years of experience in the mathematical optimization software industry. He is a technical expert who, over the course of his career, has worked with a wide array of customers to help them solve some of world’s most challenging mathematical optimization problems. In his role as a Senior Mathematical Optimization Specialist on the Gurobi R&D team, Dr. Klotz works closely with our customers to support them in implementing and utilizing mathematical optimization in their organizations.

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