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Supercomputer maker Cray looking at 64-bit ARM processors for HPC

by Mark Tyson on 18 November 2014, 10:05

Tags: ARM

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Iconic Supercomputer maker Cray Inc. is exploring the possibilities of and evaluating "alternative processor design points," according to a press release issued to coincide with the 2014 Supercomputing Conference in New Orleans. 64-bit ARM chips are said to be under scrutiny for inclusion in future supercomputer and data analytics systems made by the firm.

Cray was recently awarded an R&D contract by the United States Department of Energy (DOE) and it is hoped that ARM's energy efficiency leadership can be applied to Cray supercomputer designs. The DOE contract will see supercomputers made under a program called FastForward 2 which will be used in scientific research and the National Nuclear Security Administration.

"Our Adaptive Supercomputing vision centres on system designs that integrate diverse processing technologies into a unified architecture," said Steve Scott, Cray senior vice president and CTO "We see alternatives such as 64-bit ARM, custom ASICs and low-power Intel processors as enabling technologies for certain HPC and analytics workloads, and a natural fit for our strategy. Along with our current partnership with Intel, our participation in the DOE FastForward 2 project and our work with other technology providers, such as Cavium and ARM, gives us the opportunity to take a closer look."

Cavium Inc., as mentioned by Scott above, is currently working with Cray to deliver Cray clusters utilising its 48-core ThunderX ARM processors. This is helping in Cray's initial evaluation of the practicality of using ARM processors in supercomputers. Picking through the above statement you will also see that Cray might be testing designs using Intel's low power Bay Trail or Quark chips as well.

ARM's chief technology officer, Mike Muller, said that ARM already has "a proven track record of energy-efficiency leadership and we firmly believe this can be applied to the supercomputing market," and welcomed Cray's research into using 64-bit ARM tech in supercomputing platforms.

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