CESGA stands for "Centro de Supercomputación de Galicia" (The Supercomputing Center of Galicia). It is a high performance computing center in Galicia ( Spain).
Its most important features are the supercomputer FinisTerrae and the "Superordenador Virtual Gallego". Finisterrae is nowadays the third most powerful supercomputer in Spain, and it was initially ranked 100th according to the Top500 when installed on November 2007. CESGA provides advanced computing services to the Galician Scientific Community, Galician Universities and to the Spanish National Research Council (Consejo Superior de Investigaciones Científicas - CSIC).
CESGA also runs i-math, a Grid computing project with an initiative to approach Grid technologies to mathematics researchers, and operates the i-math Portal, a Grid Portal based on P-GRADE Portal technology. (See also: Grid computing)