It has one of the top 100 supercomputers in the world, the Tera-100.[3] TERA 100, first system designed and built in Europe to reach the petaflops in 2010, was ranked in 5th position in the worldwide TOP 500.[4][5] CEA is now building TERA-1000 which is a key step in the implementation of their Exascale program for the computing needs that CEA would face by 2020.