Cray XC30

The Cray XC30 is a massively parallel multiprocessor supercomputer manufactured by Cray. It consists of Intel Xeon processors, with optional Nvidia Tesla or Xeon Phi accelerators, connected together by Cray's proprietary "Aries" interconnect, stored in air-cooled or liquid-cooled cabinets.[1] Each liquid-cooled cabinet can contain up to 48 blades,[2] each with eight CPU sockets, and uses 90 kW of power.[3] The XC series supercomputers are available with the Cray DataWarp applications I/O accelerator technology.[4]

In 2014, the Cray XC30 systems appear prominently on the TOP500 supercomputer lists.[5]

Deployed Cray XC30 systemsEdit



The Center for Computational Astrophysics at the National Astronomical Observatory of Japan had a XC30 system named "ATERUI".[13] This was upgraded to a Cray XC40 system.[13]

United StatesEdit

  • The NERSC has a 133,824-core XC30 called "Edison."[14]
  • A 225,984-core XC30 system is installed at an undisclosed government location.[15]
  • The Air Force Research Laboratory has an XC30 called "Lightning."[16]
  • The US Naval Academy has an XC30 hosted at the University of Maryland Institute for Advanced Computer Studies, named "Grace" after Rear Admiral Grace Hopper.[17]


  • The Pawsey Supercomputing Centre has a 9,440-core XC30 called "Galaxy." One chassis of this contains GPUs; the rest is all-CPU. Its November 2013 and June 2014, TOP500 entries were before the GPU chassis was installed. This system is used for radio astronomy.[18]


  1. ^ XC30 Brochure 2013.
  2. ^ XC30 Technology web page 2014.
  3. ^ XC30 Specifications web page 2014.
  4. ^
  5. ^ Top500 List June 2014 2014.
  6. ^ "KTH XC30".
  7. ^ "About ARCHER".
  8. ^ "ARCHER Supercomputer Unveiled at Edinburgh". 25 March 2014.
  9. ^ Top500 CSCS site 2014.
  10. ^ Top500 ECMWF site 2014.
  11. ^ DCK DWD article 2013.
  12. ^ "DMI's Thor og Freyja fejret på Island" [DMI's Thor and Freyja celebrated in Iceland]. Danish Meteorological Institute. Archived from the original on 1 May 2016. Retrieved 1 May 2016. CS1 maint: discouraged parameter (link)
  13. ^ a b Feldman, Michael (4 June 2018). "World's Most Powerful Supercomputer for Astronomy Begins Operation". Top 500. Retrieved 25 June 2018. CS1 maint: discouraged parameter (link)
  14. ^ NERSC Edison web page 2014.
  15. ^ Top500 USA government site 2014.
  16. ^ Barrie Barber (16 December 2015). "Wright-Patterson Unveils One of World's Largest Supercomputers". The Dayton Daily News.
  17. ^ "US Naval Academy Dedicates New Supercomputer". US Department of Defense. Archived from the original on 15 November 2016. Retrieved 12 November 2016.
  18. ^ "Our Systems". Pawsey Supercomputing Centre. Archived from the original on 12 November 2016. Retrieved 12 November 2016.