HP Places Two Systems in Top Five of TOP500 Supercomputer List


RENO, Nev., Nov. 12, 2007- HP today announced that it placed two systems in the
top five of the TOP500 Supercomputer list, which catalogs the world's 500 most
powerful installed technical and commercial computer systems.

In addition, HP secured one-third of the implementations on the list to maintain its ranking as a leading provider of supercomputing systems.

The HP-based Computational Research Laboratories system was the largest Asia Pacificbased system on the TOP500 and No. 4 worldwide. An HP-based system for a Swedish
government agency was the fifth largest worldwide.

"Placing two systems in the top five while maintaining a prominent position across the
TOP500 demonstrates that HP's high-performance computing strategy is addressing
customer needs with the right balance of solutions and price/performance," said
Winston Prather, vice president and general manager, High Performance Computing,
HP. "Our focus is to provide innovative high-performance technology to help engineers,
scientists and researchers accelerate research and discovery."

Power of blades

HP BladeSystem c-Class servers continued to play a major role in HP's overall position
with 151 of the current systems using blade-based clusters. The market-leading c-Class is an ideal platform for high-performance computing clusters because it supports highperformance interconnects and increased processors and nodes and delivers simplified management, reduced interconnect and network complexity, and efficient power and cooling.

Top ranking customers

Computational Research Laboratories (CRL), a division of TATA, India's largest
conglomerate, has deployed the largest supercomputer in Asia Pacific for use in the
computational sciences space. The system will enable the organization to advance the
state of modeling and simulation on a wide range of scientific fields, including life
sciences and computer-aided engineering.

In addition, both the machine and the data center were designed to be a stepping stone
toward petascale capabilities. Using the machine as a test platform, CRL will conduct
fundamental research on interconnects and algorithms to reduce the time it takes to
create applications. The implementation has a peak performance of 175 teraflops per
second (Tflop/s, trillions of floating-point operations per second).

The TATA system, an HP Cluster Platform 3000BL, has 114 HP BladeSystem c-Class
enclosures, each with 16 dual-socket HP ProLiant BL460c compute nodes, all connected
via 4X DDR Infiniband switches.

HP's second system in the top five is a 182 peak Tflop/s HP Cluster Platform 3000BL
based on 2,128 HP ProLiant BL460c blade servers used by a Swedish government
agency. The implementation, which has been measured for the list with 1,716 blade
servers, was built to enable the organization to dramatically improve the performance of its operations.

About the rankings

The TOP500 ranking of supercomputers is released twice a year by researchers at the
Universities of Tennessee and Mannheim, Germany, and at NERSC Lawrence Berkeley
National Laboratory. The list ranks supercomputers worldwide based on the Linpack
N*N Benchmark, a yardstick of performance that is a reflection of processor speed and
scalability.

More information about HP high-performance computing is available at
www.hp.com/go/hptc.

About HP

HP focuses on simplifying technology experiences for all of its customers - from
individual consumers to the largest businesses. With a portfolio that spans printing,
personal computing, software, services and IT infrastructure, HP is among the world's
largest IT companies, with revenue totaling $100.5 billion for the four fiscal quarters
ended July 31, 2007. More information about HP (NYSE: HPQ) is available at
www.hp.com.

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