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Cray XT3 Supercomputer Users Can Now Automate Workload Management Tasks With Altair's PBS Professional

Altair's PBS Professional Handles Workload on Sandia Red Storm 10,000-Processor System

SEATTLE, WA, November 15, 2005 (MARKET WIRE via COMTEX News Network) - Cray Inc. (NASDAQ: CRAY), the global supercomputing leader, today announced that the Altair(R) PBS Professional(TM) workload management solution is now generally available for the Cray XT3(TM) massively parallel processor (MPP) supercomputer. PBS Professional has been fully integrated with the Cray XT3 software, allowing high-performance computing (HPC) users to intelligently manage their workloads across thousands of processors. PBS Professional, a leading workload management solution, is supported for all Cray supercomputers, and is marketed and supported by Cray and Cray resellers around the world.

The Cray XT3 is a third-generation MPP supercomputer used in leading supercomputing centers that require exceptionally high levels of sustained application performance and scalability to conduct scientific research and engineering. Altair's industry-leading PBS Professional workload management technology is now available for purchase on Cray's full product line, which includes the Cray X1E(TM), Cray XT3 and Cray XD1(TM) supercomputers.

With the PBS Professional software integrated into the Cray XT3 system, systems administrators can aggregate computational resources into a virtual pool and configure scheduling policies for maximum efficiency and faster times to solution. The software also makes end-users more productive by providing a consistent job management interface that allows them to focus their attention on applications and science, rather than having to deal with various job control languages.

"We are pleased to extend our OEM agreement with Cray to include the massive Cray XT3 systems," said Michael Humphrey, vice president of Altair's Enterprise Computing business unit. "This deployment is further testament to the scalability and robustness of PBS Professional, and Altair continues to heavily invest resources in these areas. Today's Cray systems are the latest example of the HPC industry's continuing drive to push the limits of computing capacity and complexity. Evaluating the reliability and resiliency of their workload management solutions will be critical in allowing HPC customers to take full advantage of these performance gains. Altair intends to be there to help them do just that."

"The PBS Professional solution makes it possible to integrate workflows and assign jobs across the full complement of over 10,000 processors on our Cray system, and to distribute workloads among other systems in the computing center," said Rob Leland a director with Sandia National Laboratories. "As a result, we have been able to create a computational environment that maximizes performance and is easy to use and efficient to administer."

"Cray's XT3 supercomputer customers demand the highest levels of efficiency and availability from their MPP system," said Jeff Brooks, Cray XT3 product manager. "Cray supercomputers are purpose-built to allow users in research facilities such as Sandia, Oak Ridge National Laboratory and Pittsburgh Supercomputing Center to solve some of the world's largest and most complex problems. Altair's PBS Professional provides these organizations with tools they need to ensure that these critical supercomputer resources are utilized in the most effective and productive manner possible."

About the Cray XT3 Supercomputer

The Cray XT3 supercomputer is the third generation MPP system from Cray, purpose-built to offer scientists and engineers an HPC system that delivers exceptional sustained application performance to handle their most challenging problems. The Cray XT3 supercomputer's high speed 3D torus interconnect, x86 64-bit AMD Opteron(TM) processors, high speed global I/O, and advanced MPP operating system are designed to ensure that applications scale steadily from 200 to more than 30,000 processors without performance losses from communications bottlenecks, asynchronous processing or memory access delays.

About Altair Engineering

Through product design consulting, advanced engineering software and high-performance computing (HPC) technologies, Altair Engineering increases innovation for clients around the globe. Founded in 1985 and privately held with offices throughout 12 countries, Altair's unparalleled knowledge and expertise in product development and manufacturing extend throughout North America, Europe and Asia. As the developer of Altair® HyperWorks® - The Engineering Framework for Product DesignTM, Altair is the leading provider of high-end, open CAE software solutions for modeling, visualization, optimization and process automation. The company’s grid computing software, PBS ProfessionalTM, is a workload management solution for HPC environments, Linux clusters and desktop cycle harvesting that delivers an ROI within one year. For detailed information about Altair, visit

About Cray Inc.

As the global leader in HPC, Cray provides innovative supercomputing systems that enable scientists and engineers in government, industry and academia to meet both existing and future computational challenges. Building on years of experience in designing, developing, marketing and servicing the world's most advanced supercomputers, Cray offers a comprehensive portfolio of HPC systems that deliver unrivaled sustained performance on a wide range of applications. Go to for more information.

Safe Harbor Statement

This press release contains forward-looking statements. There are certain factors that could cause Cray's execution plans to differ materially from those anticipated by the statements above. These include the technical challenges of developing high-performance computing systems, the successful porting of application programs to Cray computer systems, reliance on third-party suppliers, Cray's ability to keep up with rapid technological change and Cray's ability to compete against larger, more established companies and innovative competitors. For a discussion of these and other risks, see "Factors That Could Affect Future Results" in Cray's most recent Quarterly Report on Form 10-Q filed with the SEC.

Cray is a registered trademark, and Cray XT3, Cray XD1 and Cray X1E are trademarks, of Cray Inc. Altair and HyperWorks are registered trademarks, and PBS Professional is a trademark, of Altair Engineering, Inc. AMD and AMD Opteron are trademarks of Advanced Micro Devices, Inc. All other trademarks are the property of their respective owners.
Michael Kidder

Altair Engineering, Inc.

(248) 614-2400, ext. 269
Cray Media:

Melissa Power


Cray Investors:

John Snyder



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