Implementation of Multigrid on QPACE

Author

Bolten, Matthias ; Brinkers, Daniel ; Rüde, Ulrich ; Stürmer, Markus

Author_Institution

Fachbereich C - Math. und Naturwissenschafien, Bergische Univ. Wuppertal, Wuppertal, Germany

fYear

2011

fDate

26-30 Sept. 2011

Firstpage

371

Lastpage

377

Abstract

We developed and optimized a multigrid method on the QPACE cluster. The QPACE cluster is an acclerator-based cluster using the Power Cell 8i CPU that is built by the special research field SFB TR 55 for Lattice Quantum Chromo dynamics computations. The cluster uses a custom 3D to rus network build using FPGAs. Our goal was to evaluate the QPACE architecture for a type of algorithm that uses a communication pattern not limited to nearest neighbor communication. We provide a model of the communication network taking into account the specific characteristics of the network and the network processor. For the implementation we chose to use an accelerator-centric programming model by using the SPUs, only.

Keywords

field programmable gate arrays; grid computing; lattice field theory; microprocessor chips; parallel machines; quantum chromodynamics; quantum computing; 3D torus network; FPGA; QPACE cluster; accelerator-centric programming model; acclerator-based cluster; lattice quantum chromo dynamics computations; multigrid method; nearest neighbor communication; Acceleration; Bandwidth; Computer architecture; Field programmable gate arrays; Kernel; Microprocessors; Multigrid methods; CBEA; QPACE; accelerator-based cluster; multigrid;

fLanguage

English

Publisher

ieee

Conference_Titel

Cluster Computing (CLUSTER), 2011 IEEE International Conference on

Conference_Location

Austin, TX

Print_ISBN

978-1-4577-1355-2

Electronic_ISBN

978-0-7695-4516-5

Type

conf

DOI

10.1109/CLUSTER.2011.48

Filename

6061196