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QPACE: Quantum Chromodynamics Parallel Computing on the Cell Broadband Engine
November/December 2008 (vol. 10 no. 6)
pp. 46-54
Gottfried Goldrian, IBM Research and Development Lab, Böblingen, Germany
Thomas Huth, IBM Research and Development Lab, Böblingen, Germany
Benjamin Krill, IBM Research and Development Lab, Böblingen, Germany
Jack Lauritsen, IBM Research and Development Lab, Böblingen, Germany
Heiko Schick, IBM Research and Development Lab, Böblingen, Germany
Ibrahim Ouda, IBM Systems and Technology Group
Simon Heybrock, University of Regensburg, Germany
Dieter Hierl, University of Regensburg, Germany
Thilo Maurer, University of Regensburg, Germany
Nils Meyer, University of Regensburg, Germany
Andreas Schäfer, University of Regensburg, Germany
Stefan Solbrig, University of Regensburg, Germany
Thomas Streuer, University of Regensburg, Germany
Tilo Wettig, University of Regensburg, Germany
Dirk Pleiter, Deutsches Elektronen Synchrotron
Karl-Heinz Sulanke, Deutsches Elektronen Synchrotron
Frank Winter, Deutsches Elektronen Synchrotron
Hubert Simma, University of Milano-Bicocca, Italy
Sebastiano Fabio Schifano, University of Ferrara, Italy
Raffaele Tripiccione, University of Ferrara, Italy
Andrea Nobile, European Center for Theoretical Studies, Trento, Italy
Matthias Drochner, Research Center Julich, Gernany
Thomas Lippert, Research Center Julich, Gernany
Zoltan Fodor, University of Wuppertal, Germany
The Quantum Chromodynamics Parallel Computing on the Cell Broadband Engine (QPACE) project is developing a massively parallel, scalable supercomputer for applications in lattice quantum chromodynamics (QCD). Specifically, the architecture is a 3D torus of identical processing nodes, based on the PowerXCell 8i processor. These nodes are tightly coupled by an application-optimized network processor that is based on a field-programmable gate array attached to the PowerXCell 8i. The authors have analyzed lattice QCD code performance on QPACE, carried out corresponding hardware benchmarks, and found that it offers suitable performance. They describe the QPACE architecture in detail, focusing on the challenges arising from the PowerXCell 8i's multicore nature and the use of an FPGA for the network processor.
Index Terms:
lattice quantum chromodynamics, massively parallel computing, Cell Broadband Engine, field-programmable gate array, torus network, performance modeling, QCD
Citation:
Gottfried Goldrian, Thomas Huth, Benjamin Krill, Jack Lauritsen, Heiko Schick, Ibrahim Ouda, Simon Heybrock, Dieter Hierl, Thilo Maurer, Nils Meyer, Andreas Schäfer, Stefan Solbrig, Thomas Streuer, Tilo Wettig, Dirk Pleiter, Karl-Heinz Sulanke, Frank Winter, Hubert Simma, Sebastiano Fabio Schifano, Raffaele Tripiccione, Andrea Nobile, Matthias Drochner, Thomas Lippert, Zoltan Fodor, "QPACE: Quantum Chromodynamics Parallel Computing on the Cell Broadband Engine," Computing in Science and Engineering, vol. 10, no. 6, pp. 46-54, Nov.-Dec. 2008, doi:10.1109/MCSE.2008.153
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