CEMRACS is a 6-week international summer school organized almost every summer since 1996 at CIRM (Centre International de Rencontres Mathématiques) on the Luminy campus near Marseille, famous calanques. In 2025, the event will be dedicated to Quantum Computing, with a special emphasis on scientific computing and cryptography.

The principle of this event relies on strong industrial partnerships and has a two-period structure: the first phase consists of one week of lectures (July 15 to 19), and the second of a five-week period of project-based research. During the second phase, each participant works in a team on a collaborative research project proposed either by an industrial company or an academic team. Teams are made up of 2 or 3 young researchers, supervised by one or two experienced researchers provided by the company or the academic team that proposed the project.