HP's BladeSystem c-Class server has been named as the world's largest supercomputer. This is the second year in a row that HP has topped the list of the 500 most powerful computers in the world.

HP computers make up 41,8% of the list, with IBM computers making up 37,6%.
The Top500 list is complied twice a year by researchers at the Universities of Tennessee and Mannheim, Germany, and at NERSC Lawrence Berkeley National Laboratory.
HP BladeSystem powers 40.2 percent 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.
With 201 placements, the number of HP BladeSystem servers on the TOP500 list has increased by 5 percentage points compared to the June 2008 ranking and by 10 percentage points compared to June 2007. The number of high-performance computing (HPC) installations using blade servers on the TOP500 list has increased more than any other single computing architecture. In fact, blade-powered systems are increasingly replacing proprietary systems in the HPC area and legacy mainframe architectures in commercial environments.
"Customers can maximise their high-performance computing investments while increasing energy efficiency with blades, clearly improving their bottom line," says Andrew McNiven, Industry Standard Servers Business Unit manager at HP SA. "The continued dominance of HP BladeSystem customers on the TOP500 list demonstrates the growing market demand for industry-standard architectures that address a broader set of computing challenges at a far lower cost than proprietary systems and mainframes."