France, Nov. 17 -- Eviden, the Atos Group product brand leading in advanced computing, announces today the rankings of its 58 Eviden-built systems in the TOP500 and Green500, official listings of the world's most powerful and most energy-efficient supercomputers. Amongst the 58 Eviden-built systems listed in the TOP500, JUPITER, through its Booster partition, remains the 4th most powerful supercomputer in the world and Europe's 1st, marking a historic milestone as Europe's first system to officially break the symbolic ExaFlop barrier - one billion billion calculations per second. Eviden also leads the Green500 for the fourth edition in a row, claiming the top three spots with its Eviden-built systems KAIROS (CALMIP), ROMEO (URCA), and the L...