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Expanding the Focus: Introducing the MIPfeas Benchmark

Mar 17, 2026 Last updated: Apr 10, 2026 Solvers

Update (April 2026): The article has been extended to cover the latest release of the GAMS/cuOpt solver link (v0.0.6 ) for NVIDIA cuOpt 26.04 . Testing on the new NVIDIA B200 GPU reveals a significant performance jump: the geometric mean dropped from 0.0651 (on H100) to just 0.0383 — a result of both software improvements and the Blackwell architecture. Even when holding hardware constant on the NVIDIA GB10, the software alone drove the geometric mean down from 0.0887 to 0.0426, proving that the latest cuOpt version delivers a significant improvement in this benchmark on its own merits.
Speed vs. Guarantees: A Practical MIP–NLP Trade-off for NN Robustness

Nov 12, 2025 GAMSPy
A hands-on comparison of ReLU modeling in GAMSPy, MIP vs NLP, for adversarial verification on realistic networks. The workflow, code snippets, and trade-off between speed and guarantees are all explained in details.
The McCarl GAMS User Guide: History and Legacy

Jan 24, 2024 News

Introduction

In early 2024, the last steps in the integration of the McCarl GAMS User Guide with the GAMS documentation will be completed. The McCarl Guide will no longer be pointed to or available from the GAMS docs, although it is available on Bruce McCarl’s web site or the GAMSWORLD forum (see links below). While these last steps may go unnoticed by many GAMS users, the integration process has resulted in a much better documentation that all have benefited from. Reaching this milestone provides us a good opportunity to look back at the history of the McCarl Guide. In this article, we consider the original purpose of the Guide, the positive impact it has had during the many years of its use, and the reasons for its retirement.
Model Instances with more than 2³¹ Non-Zeros - Impact on Energy Systems Research

Nov 8, 2021 GAMS Release News Examples
With GAMS 37, we now support the generation of model instances with more than 2³¹ non-zeros. We expect huge models to become more important in the future.
Army Goes Bowling

Nov 21, 2017 GAMS Applications
The announcement that the US Military Academy’s football team, the Army West Point Black Knights, had received a bid to the Armed Forces Bowl on 23 Dec was good news for the team and its fans and supporters everywhere, but it posed a problem for those tasked with scheduling the Term End Exams at the Academy.

Authors

Ahmed Alqershi

Atharv Bhosekar

Adam Christensen

Aileen Homey

Alexander Meeraus

André Schnabel

Bruce McCarl

Burak Usul

Christophe Gouel

Clemens Westphal

Evangelos Panos

Fred Fiand

Freddy Proske

George Franco

Hans Lofgren

Justine Broihan

Julien Harou

Janina Hasselbring

Leonard Kunz

Logan Randolph

Lutz Westermann

Mohammed Basheer

Marius Bützler

Michael Bussieck

Mateo Gallia

Michael Horstmann

Muhammet Soytürk

Renke Kuhlmann

Robin Schuchmann

Steve Dirkse

Stefan Mann

Stefan Vigerske