Cielo (supercomputer)

Cielo was a United States supercomputer located at Los Alamos National Laboratory.^[3] Built by Cray Inc, the computer was part of the Advanced Simulation and Computing Program to maintain the United States nuclear stockpile.

Cielo

Operators	National Nuclear Security Administration
Location	Los Alamos National Laboratory
Architecture	Cray XE6 with Dual AMD Opteron™ 6136 eight-core “Magny-Cours” Socket G34 @ 2.4 GHz[1]
Power	3.98 Mega Watts[1]
Space	3000 square feet (278.7 m2)[1]
Memory	286 terabytes DDR3 @ 1333 MHz[1]
Storage	7.6 PB User Available Capacity[1]
Speed	1,110 TF using 142,272 cores[1]
Cost	US$ 54M[2]
Ranking	TOP500: 6, 2011
Purpose	Primarily utilized to perform milestone weapons calculations

From 31 March 2013, with the retirement of IBM Roadrunner, it took over as their front line computer.^[2] As of June 2014^[update], it is ranked as number 32 on the TOP500. As of 29 September 2016^[update], it has been decommissioned and powered down permanently.^{[citation needed]} Cielo was succeeded by Trinity.