For the second consecutive year, the powerful and energy-efficient HP BladeSystem c-Class server has dominated the TOP500 list of the world’s largest supercomputing installations by delivering a flexible architecture that provides customers with measurable cost, space and energy savings.

Including systems built on HP ProLiant architectures, HP now commands a total of 41.8 per cent of systems on the TOP500 list, while IBM slipped to 37.6 per cent.

HP BladeSystem powers 40.2 per cent of the systems on the most recently announced list; this represents more blade installations than all other vendors combined. Versatile, energy-efficient and affordable, HP blade servers provide customers with the maximum density required for high-performance and scale-out computing.

Emphasising the strong momentum of HP blade technology in the market, the HP ProLiant BL2x220c G5 powers several of the most power efficient industry-standard supercomputing clusters, including WETA Digital Ltd. in New Zealand, Cyfronet in Poland and Columbia University in New York City. The BL2x220C G5 delivers up to 260 megaflops-per-watt ratio running the TOP 500 Linpack Benchmark across a single, 32-node enclosure.

This performance benefit, coupled with double the performance per rack, positions the HP BL2x220c as the leading server blade for customers that need maximum application performance without the additional infrastructure costs.

According to IDC’s worldwide HPC server Qview report, HP is the leading provider of HPC servers with 37 per cent of the overall market based on revenue in the second quarter of 2008.