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Contents August 2005
How do you build a supercomputer? Together!
Paderborn 21 June 2005

Today's supercomputers are built commodity-of-the-shelf (COTS) systems, are they not? Absolutely not, as the example of the new hpcLine system in Paderborn shows. Although the processors and many other components are standard, and can be found in many other computers too, the complete system is custom designed. This is typical of today's cluster supercomputers. The hpcLine in Paderborn was designed by PC2 - the Paderborn Parallel Computing Centre in collaboration with Fujitsu-Siemens Computers. Fujitsu Siemens led a consortium with many other companies that each delivered a part of the system. The hpcLine was inaugurated on June 21st at an event in Paderborn that also included presentations from supercomputing experts from Japan and the US. About one hundred attendees came to the city on one of the hottest days in Germany in June to learn about the cooling especially designed for the Paderborn hpcLine. The next day, at the presentation of the new official TOP500 list, we learned the system entered the list at position 205.

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The new hpcLine follows a long tradition at Paderborn of acquiring new innovative parallel machines. For instance when it was formed in 1991 it acquired a transputer based Parsytec system. In 1999 it had the first hpcLine system ever built: a 96 node system. The old transputer system can now be found next door: in the Heinz Nixdorf Computer museum. Whether the new system will also make it to the museum in ten year's time remains to be seen, but probably not. The new system is no doubt technologically advanced, but from the outside it looks like any other large rack based system. The inside of the new hpcLine brings together many components in a special designed customized architecture.

The system has many components, all essential and delivered by different companies. Intel for instance delivered the computational processors. The system integration was done by ICT AG. The Infiniband communication technology was produced by Silverstorm Technology.

For the special processor cooling and the racks, Atotech GmbH and Rittal GmbH took care. UNITY AG delivered the projection technology and Advanced Realtime Tracking GmbH the 3d-Tracking-System.

On the software side, Scali took care of the MPI software and the Cluster Management software, while Mercury Computer Systems delivered the AMIRA visulisation software.

Hence the new system is a typical example of today's advanced supercomputers which you do not buy from a catalogue, but can adapt to specific requirements.
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