The initials “CISM” stand for “Calcul Intensif et Stockage de Masse”, or high-performance computing and mass storage. It was created in 2004 at UCLouvain by the users of the HPC facilities coming from different Departments in the University. The CISM operates the scientific computing clusters and the scientific data storage systems installed at UCLouvain, organizes and delivers training sessions about HPC targeted at researchers and offers consultancy and expertise in code porting, optimization, compilation, etc. Thanks to this HPC facilities, researchers from UCLouvain produce around 60 to 80 publications every year.

Since Nov. 9th, 2010, the CISM is a member of the  Consortium des Equipement de Calcul Intensif (CÉCI) of the Fédération Wallonie-Bruxelles (FWB - CFB). The CÉCI is supported by the FRS-FNRS. Current partners include UCLouvain/CISM, ULB/Hydra, UNamur/PTCI, UMons/LPSI, CMN & INFO and ULiège/SEGI

The CISM has long collaborated with the Center for Cosmology, Particle Physics and Phenomenology (CP3) who operates the Belgian LHC Tier-2 infrastructure, hosting a Petabyte of data and approximately 2000 CPU cores in the Ingrid cluster. Nowadays, the effective cooperation of both teams has lead to the integration of Ingrid into Manneback, and a joint management of the computer room.