SEATTLE, WA -- (MARKET WIRE) -- 06/20/2006 -- Global supercomputer leader Cray Inc. (NASDAQ: CRAY) today announced that it will offer the QLogic® PathScale® Compiler Suite on its Cray XT3™ supercomputer. Users who need the features and performance of the PathScale Compiler Suite, including organizations that are already running the compiler suite on other platforms, will be able to obtain the software directly from Cray for their AMD Opteron™-based Cray XT3 systems.

"We have seen increasing demand for QLogic PathScale compilers from our growing Cray XT3 user base and are moving to meet that need," said Jan Silverman, senior vice president, corporate strategy and business development for Cray. "Cray supercomputers support performance demanding users running multiple applications. By offering a choice of compilers in our products, we are giving customers powerful tools to help them be more productive and enabling them to fully exploit system performance and portability of applications."

"A Cray XT3 supercomputer equipped with dual-core AMD Opteron processors brings tremendous computational power to high-performance computing applications," said Len Rosenthal, vice president of marketing for the QLogic Systems Interconnect Group. "We are excited to be able to further enhance application performance on these systems with our powerful 64-bit PathScale compilers, and to collaborate with Cray on providing scientists and engineers with tools that can efficiently handle their most challenging computational tasks."

About QLogic's PathScale Compiler Suite

The award-winning PathScale Compiler Suite from QLogic offers high-performance C, C++ and Fortran 95 compilers for 64-bit Linux®-based computer systems. The compiler suite offers sophisticated optimization infrastructures for both AMD64 and Intel EM64T architectures. Taking advantage of the performance features of AMD64 processors, PathScale compilers help enhance application performance for AMD Opteron-based systems such as the Cray XT3 supercomputer. Utilizing AMD Opteron's advanced processor features -- including complex addressing modes, large register sets, more efficient parameter passing and SSE2 support -- the PathScale Compiler Suite generates highly efficient execution code.

About the Cray XT3 Supercomputer

The Cray XT3 supercomputer is the third-generation MPP system from Cray. Purpose-built to deliver exceptional sustained application performance for challenging scientific and engineering problems, the Cray XT3 system has set new performance records for systems equipped with standard-based processors. The supercomputer's high-speed 3D torus interconnect, advanced MPP operating system and high-speed global input/output make it possible for users to scale applications from 200 to more than 30,000 processors without performance loss. The system's scalable processing element uses x86 64-bit AMD Opteron single or dual-core processors that employ HyperTransport™ technology to increase bandwidth and reduce latency. The Cray XT3 supercomputer was named 2005 Product of the Year by Scientific Computing & Instrumentation. Go to www.cray.com/products/CrayXT3 for more information.

About Cray Inc.

As the global leader in supercomputing, Cray provides highly advanced supercomputing systems and world-class services and support to government, industry and academia. Cray technology enables 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 will result in 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 www.cray.com 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 reliance on third-party suppliers, the technical challenges of developing high-performance computing systems and successful porting of application programs to new computing systems. For a discussion of these and other risks, see "Factors That Could Affect Future Results" in Cray's most recent Annual Report on Form 10-Q filed with the SEC.

Cray is a registered trademark, and Cray XT3 is a trademark, of Cray Inc. QLogic and PathScale are registered trademarks of QLogic Corporation. Opteron is a trademark of Advanced Micro Devices, Inc. HyperTransport is a licensed trademark of the HyperTransport Technology Consortium. All other trademarks are the property of their respective owners.