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Cielo
OperatorsNational Nuclear Security Administration
LocationLos Alamos National Laboratory
ArchitectureCray XE6 with Dual AMD Opteron™ 6136 eight-core “Magny-Cours” Socket G34 @ 2.4 GHz[1]
Power3.98 Mega Watts[1]
Space3000 square feet (278.7 m2)[1]
Memory286 terabytes DDR3 @ 1333 MHz[1]
Storage7.6 PB User Available Capacity[1]
Speed1,110 TF using 142,272 cores[1]
CostUS$ 54M[2]
RankingTOP500: 6, 2011
PurposePrimarily utilized to perform milestone weapons calculations

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.

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

Notes

  1. ^ a b c d e f "Cielo: NNSA Capability Supercomputer". Los Alamos National Laboratory. Archived from the original on 2014-10-16. Retrieved 2013-04-02.
  2. ^ a b "'Petaflop' supercomputer is decommissioned". BBC News. 2013-04-01. Retrieved 2013-04-02.
  3. ^ Morgan, Timothy Prickett (1 October 2020). "With "Crossroads" Supercomputer, HPE Notches Another DOE Win". The Next Platform. Retrieved 5 November 2020.

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