The MESOSUD-SANTE project aims to develop on the Datacenter-Sud site, St Jérôme campus in Marseille, a new intensive computing platform adapted to the needs identified in the field of specialization "health silver economy", in particular digital health. This is the first stone in the construction of a regional mesocentre, a future intensive computing technology platform offering diversified and efficient digital services: Intensive parallel computing, cloud for distributed computing and storage of computing data.