link to homepage

Institute for Advanced Simulation (IAS)

Navigation and service

Cluster Computing

Cluster Computing plays an ever-increasing role in the field of scientific high-performance computing. JSC aspires to cover a significant part of the users' demands with such systems. A first step is represented by NICole, an Opteron based system owned by the NIC research group "Computational Biology and Biophysics". It was extended by 8 nodes and a front-end system and is in production mode since October 2005. The next step will be a strategic project together with IBM, PathScale and ParTec. A system based on IBM's PowerPC blades and PathScale's high-performance interconnect InfiniPath - managed by the cluster middle-ware ParaStation - shall go into early operation-mode midyear 2006.

The Cluster middleware ParaStation - already deployed to NICole - was extended and maintained within the ParaStation Consortium. Within the framework of this consortium - founded by FZJ, ParTec and the Universities of Karlsruhe and Wuppertal - ParTec agreed to release ParaStation to open source and free use within academia. The software's task within a cluster is similar to the task of an operating system on a single machine, i.e. management of processes and resources, inter-process communication, etc. FZJ coordinates the on-going development of the core software and supports universities and other research facilities during installation and operation of ParaStation.

In cooperation with the University of Wuppertal a new technology for building multi-stage crossbars out of mid-size Gigabit Ethernet switches was developed. A joint patent together with ParTec is pending (EP 05 012 567.3). The cooperating switches feature bi-sectional bandwidth for port-numbers way beyond the capabilities of a single switch. Using the 48-port switches of Wuppertal's ALiCEnext cluster, a 512-port crossbar was built. It provides full bi-sectional bandwidth in production mode since December 2005. Combined with ParaStation, an accumulated bandwidth of more than 56 GigaByte/s at a maximum latency of 9 µs was reached.









Dear visitor,

To make our website suit your needs even more and to give it a more appealing design, we would like you to answer a few short questions.

Answering these questions will take approx. 10 min.

Start now Close window

Thank you for your support!


In case you have already taken part in our survey or in case you have no time to take part now, you can simply close the window by clicking "close".

If you have any questions on the survey, please do not hesitate to contact:


Your Team at Forschungszentrum Jülich


Note: Forschungszentrum Jülich works with the market research institute SKOPOS to anonymously conduct and analyze the survey. SKOPOS complies with the statutory requirements on data protection as well as with the regulations of ADM (Arbeitskreis Deutscher Markt- und Sozialforschungsinstitute e.V.) and ESOMAR (Europäische Gesellschaft für Meinungs- und Marketingforschung). Your data will not be forwarded to third parties.