PRESS RELEASE

8 April 2005 ClusterVision Becomes Cray Reseller and Receives Order for Cray XD1™ Supercomputer from TNO ClusterVision, specialist in Linux supercomputer clusters, has become a Cray Channel Partner to sell the Cray XD1™ supercomputer in the Benelux. ClusterVision has also received their first Cray XD1 order from TNO Science and Industry. The 36 AMD Opteron™ processor Cray XD1 will soon be installed at TNO in Delft where it will be used for research into ultrasound and flow acoustics. After a thorough selection process, Cray selected ClusterVision as their reseller of the Cray XD1 supercomputer in the Benelux. ClusterVision has added the Cray XD1 system to their product portfolio which already includes compute, storage and database clusters based on Intel® and AMD processors.
"ClusterVision's impressive track record and reputation for technical expertise and customer care made them an obvious candidate to be Cray Channel Partner for the Cray XD1 supercomputer in the Benelux", said Bill Turner, Cray's manager for channel partnerships. "ClusterVision adds local presence and support to the superior performance and scalability of the Cray XD1 product line. Together we offer an exceptional solution for HPC users." TNO Science and Industry has extensive expertise in the design and inspection of complex industrial installations. An often used inspection method is based on ultrasound. TNO has developed several numerical simulation codes for the realistic simulation of ultrasound measurements. Another application developed by TNO is that of the prediction of aero-acoustic noise, such as sound in and around pressure regulators in piping systems and interior noise in cars resulting from the turbulent flow around the car body, the rear-view mirror and wind-screen wipers. Ir Maurits van der Heiden, scientist at TNO, comments "The Cray XD1 is very suitable for our computational intensive research and has a very favourable price/performance ratio. The procurement of the powerful Cray XD1 from ClusterVision together with our simulation codes gives TNO a unique position in the European market for this type of applied research."	The Cray XD1 system
Prediction of the acoustic loading of a car's side window due to turbulence caused by a rear view mirror (Courtesy of PSA). About the Cray XD1 Supercomputer The Cray XD1 supercomputer is rapidly winning customers around the world. This exciting new system lets users experience the performance and reliability of Cray supercomputing technology in systems that scale to handle departmental to enterprise-wide workloads. The Cray XD1 system provides scientists and engineers with a platform purpose-built to meet their high performance computing challenges, and is an attractive alternative to the challenge of managing clusters assembled from general-purpose business servers. The Cray XD1 supercomputer features the direct connect processor (DCP) architecture, which removes PCI bottlenecks and memory contention to deliver superior sustained performance. About TNO TNO is a leading independent, knowledge company whose expertise and research contributes to the competitiveness of businesses and organizations and to the economy and quality of society as a whole. TNO holds a unique position through its versatility and capacity to integrate this knowledge. Some 5000 professionals work at TNO. TNO has 5 core areas: Quality of Life, Defense and Public Safety, Science and Industry, Built Environment and Geosciences and ICT and Services. About ClusterVision ClusterVision are specialists in the design, implementation and support of large-scale computer clusters. Their clustering technology provides an alternative to traditional supercomputing by connecting multiple computers to form a unified computing system. ClusterVision's technical and sales team have designed and built some of the largest and most complex computational, storage and database clusters in the UK, the Netherlands, Belgium and Germany. With a background in applied scientific research and practical experience with a wide range of supercomputer technologies the team understands customers' requirements and provides tailor-made solutions. About Cray 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. The above hi-res pictures are available from www.mcsonline.nl/pers/ For more information Dr ir Matthijs van Leeuwen Sales Director ClusterVision Nieuw-Zeelandweg 15B 1045 AL Amsterdam Netherlands Tel: +31 20 407 7550 Fax: +31 84 759 8389 www.clustervision.com