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Cray Unveils the Cray XK6 Supercomputer

New System Leverages the Latest Technologies From Cray, AMD and NVIDIA

SEATTLE, WA and FAIRBANKS, AK, May 24, 2011 -- Global supercomputing leader Cray Inc. (NASDAQ: CRAY) today announced the launch of the Company's new production hybrid supercomputing system -- the Cray XK6 supercomputer -- at the 2011 Cray User Group (CUG) meeting in Fairbanks, Alaska. The highly anticipated new supercomputer will combine Cray's Gemini interconnect, AMD Opteron(TM) 6200 Series processors (code-named "Interlagos") and NVIDIA Tesla 20-Series GPUs to create a tightly-integrated supercomputing system upgradeable to more than 50 petaflops (quadrillions of operations/second) of compute power.

The Cray XK6 system introduces an innovative approach to increasing programmer productivity with a unified x86/GPU programming environment that includes tested and powerful tools, libraries, compilers and third-party software. When combined with the Cray Linux Environment, the result is a fully integrated Cray supercomputer that blends scalable hardware, software and a network. Cray XK6 customers will be able to utilize the capabilities of a multi-purpose supercomputer designed for the next-generation of many-core, high performance computing (HPC) applications.

The Swiss National Supercomputing Centre (CSCS) in Manno, Switzerland is Cray's first customer for the new Cray XK6 system. CSCS, which develops and promotes technical and scientific services for the Swiss research community in the field of HPC, signed a contract with Cray to upgrade its Cray XE6m system, nicknamed "Piz Palu," to a multi-cabinet Cray XK6 supercomputer. CSCS is a long-standing Cray customer and supports scientists working in diverse fields such as weather forecasting, climatology, chemistry, physics, material sciences, geology, biology, genetics, experimental medicine, astronomy, mathematics and computer sciences.

Professor Dr. Thomas Schulthess, Director of CSCS, said, "Given the remarkable interest in GPU technology from the Swiss computational science community, it is essential that CSCS adopt this technology into its high-end production systems soon. However, we are not looking for another GPU based stunt to place high on any Top500 lists. The Cray XK6 promises to be the first general-purpose supercomputer based on GPU technology, and we are very much looking forward to exploring its performance and productivity on real applications relevant to our scientists."

A powerful addition to Cray's line of highly-advanced supercomputers, the Cray XK6 system pairs industry-leading HPC technologies from AMD and NVIDIA to create a true hybrid supercomputer with intra-node flexibility. By combining AMD Opteron processors with NVIDIA GPUs, the compute node in the Cray XK6 system gives users the option to run applications with either scalar or accelerator components. The Cray XK6 compute blades can also be blended with Cray XE6 compute blades into a single, multi-purpose supercomputing system.

"Every aspect of the Cray XK6 has been engineered to meet the real-world performance demands of researchers and scientists tasked with solving the world's grand challenges," said Barry Bolding, vice president of Cray's product division. "Cray has a long history of working with accelerators in our vector technologies. We are leveraging this expertise to create a scalable hybrid supercomputer -- and the associated first-generation of a unified x86/GPU programming environment -- that will allow the system to more productively meet the scientific challenges of today and tomorrow. We built the world's first production petaflops system with the Cray XT5 supercomputer, reinvented high performance networking with the Gemini interconnect, and we are now redefining accelerator-based supercomputing with the unified GPU and scalar technologies built into the Cray XK6 system."

Upgradeable from Cray XT4, Cray XT5, Cray XT6 or Cray XE6 systems, the Cray XK6 system is expected to be available in the second half of 2011. It can be configured in a single cabinet with tens of compute nodes, to a multi-cabinet system with tens of thousands of compute nodes.

"GPUs are playing an increasingly important role in high performance computing as researchers and scientists look to augment the CPU performance on certain codes," said Earl Joseph, IDC program vice president for HPC. "Cray is a leader in the high-end of the supercomputing market and has designed, built and installed some of the world's most powerful systems. The company has decades of experience in successfully integrating hybrid processor types into large scale systems. This strategy of hybrid supercomputing is extremely valuable, and Cray is in a good position to take advantage of it."

Additional information on the Cray XK6 supercomputer, including a brochure and technical details, can be found on the Cray XK6 system page on the Cray website.

About Cray Inc.

As a global leader in supercomputing, Cray provides highly advanced supercomputers and world-class services and support to government, industry and academia. Cray technology is designed to enable scientists and engineers to achieve remarkable breakthroughs by accelerating performance, improving efficiency and extending the capabilities of their most demanding applications. Cray's Adaptive Supercomputing vision is focused on delivering innovative next-generation products that integrate diverse processing technologies into a unified architecture, allowing customers to surpass today's limitations and meeting the market's continued demand for realized performance. Go to for more information.

Safe Harbor Statement

This press release contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934 and Section 27A of the Securities Act of 1933, including, but not limited to, statements related to its product development plans, including the timing of availability of the Cray XK6 system, the sales prospects of the Cray XK6 system, the ability of the Cray XK6 system to perform as expected and Cray's ability to deliver a Cray XK6 upgrade to CSCS when required and that meets CSCS's needs. These statements involve current expectations, forecasts of future events and other statements that are not historical facts. Inaccurate assumptions and known and unknown risks and uncertainties can affect the accuracy of forward-looking statements and cause actual results to differ materially from those anticipated by these forward-looking statements. Factors that could affect actual future events or results include, but are not limited to, the risk that Cray is not able to successfully complete its planned product development efforts related to the Cray XK6 or to ship the Cray XK6 system within the planned timeframe or at all, the risk that Cray XK6 systems do not perform as expected or as required by customers, the risk that Cray will not be able to sell Cray XK6 systems as expected, the risk that the upgrade required by CSCS is not delivered in a timely fashion or does not perform as expected, the risk that the AMD Interlagos processor is not available when expected, the risk that the planned update to the NVIDIA 20-Series GPU is not available with the performance expected or when expected and such other risks as identified in the Company's quarterly report on Form 10-Q for the quarter ended March 31, 2011, and from time to time in other reports filed by Cray with the U.S. Securities and Exchange Commission. You should not rely unduly on these forward-looking statements, which apply only as of the date of this release. Cray undertakes no duty to publicly announce or report revisions to these statements as new information becomes available that may change the Company's expectations.

Cray is a registered trademark of Cray Inc. in the United States and other countries, and Cray XK6, Gemini, Cray Linux Environment, Cray XE6m, Cray XE6, Cray XT5, Cray XT4 and Cray XT6 are trademarks of Cray Inc. Other product and service names mentioned herein are the trademarks of their respective owners.

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