▁systems . ▁It ▁contains ▁ 6 , 1 4 4 ▁M IP S ▁R 1 0 0 0 0 ▁micro process ors . ▁Its ▁theoretical ▁top ▁performance ▁is ▁ 3 . 0 7 2 ▁t era f lo ps . ▁▁ ▁It ▁was ▁built ▁as ▁a ▁stage ▁of ▁the ▁Acc eler ated ▁Str ateg ic ▁Comput ing ▁In iti ative ▁( AS CI ) ▁started ▁by ▁the ▁U . S . ▁Department ▁of ▁Energy ▁and ▁the ▁National ▁N uc lear ▁Security ▁Administration ▁to ▁build ▁a ▁sim ulator ▁to ▁replace ▁live ▁nuclear ▁weapons ▁testing ▁following ▁the ▁mor ator ium ▁on ▁testing ▁started ▁by ▁President ▁George ▁H . ▁W . ▁Bush ▁in ▁ 1 9 9 2 ▁and ▁extended ▁by ▁Bill ▁Cl inton ▁in ▁ 1 9 9 3 . ▁It ▁was ▁un ve iled ▁( comm ission ed ) ▁in ▁ 1 9 9 8 . ▁In ▁June ▁ 1 9 9 9 ▁it ▁was ▁the ▁world ' s ▁second ▁fast est ▁computer , ▁and ▁remained ▁among ▁the ▁world ' s ▁ten ▁fast est ▁computers ▁until ▁November ▁ 2 0 0 1 . ▁According ▁to ▁the ▁Los ▁Al amos ▁National ▁Labor atory ▁website , ▁the ▁super comput er ▁set ▁a ▁world ▁record ▁in ▁May ▁ 2 0 0 0 , ▁with ▁the ▁equivalent ▁of ▁ 1 7 . 8 ▁years ▁of ▁normal ▁computer ▁processing ▁within ▁ 7 2 ▁hours , ▁including ▁ 1 5 , 0 0 0 ▁engineering ▁simulations ▁requiring ▁ 1 0 ▁hours ▁each . ▁ ▁First ▁commission ed ▁in ▁November ▁