Towards the petaflop for Lattice QCD simulations the PetaQCD project

Jean-Christian Anglès d'Auriac, Denis Barthou, Damir Becirevic, René Bilhaut, François Bodin, Philippe Boucaud, Olivier Brand-Foissac, Jaume Carbonell, Christine Eisenbeis, Pascal Gallard, Gilbert Grosdidier, Pierre Guichon (+8 others)
2010 Journal of Physics, Conference Series  
The study and design of a very ambitious petaflop cluster exclusively dedicated to Lattice QCD simulations started in early '08 among a consortium of 7 laboratories (IN2P3, CNRS, INRIA, CEA) and 2 SMEs. This consortium received a grant from the French ANR agency in July '08, and the PetaQCD project kickoff took place in January '09. Building upon several years of fruitful collaborative studies in this area, the aim of this project is to demonstrate that the simulation of a 256 x 128 3 lattice
more » ... n be achieved through the HMC/ETMC software, using a machine with efficient speed/cost/reliability/power consumption ratios. It is expected that this machine can be built out of a rather limited number of processors (e.g. between 1000 and 4000), although capable of a sustained petaflop CPU performance. The proof-of-concept should be a mock-up cluster built as much as possible with off-theshelf components, and 2 particularly attractive axis will be mainly investigated, in addition to fast all-purpose multi-core processors: the use of the new brand of IBM-Cell processors (with on-chip accelerators) and the very recent Nvidia GP-GPUs (off-chip co-processors). This cluster will obviously be massively parallel, and heterogeneous. Communication issues between processors, implied by the Physics of the simulation and the lattice partitioning, will certainly be a major key to the project.
doi:10.1088/1742-6596/219/5/052021 fatcat:ihb35o3ob5crnalmtkmof5leby