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SC Conference - Activity Details



Advancing Lattice QCD on a Blue Gene/P

Authors:
Chulwoo Jung  (Brookhaven National Laboratory)
James Osborn  (Argonne National Laboratory)
Andrew Pochinsky  (Massachusetts Institute of Technology)
Posters Session
Tuesday,  05:15PM - 07:00PM
Room Rotunda Lobby
Abstract:
Since the installation of the 40 rack Blue Gene/P system at the Argonne Leadership Computing Facility earlier this year, researchers have accumulated over 150 million core-hours towards the study of lattice Quantum Chromodynamics (QCD). These simulations will deepen our understanding of the interactions of quarks and gluons, the basic constituents of 99% of the visible matter in the universe. We will present some of the work that went into optimizing the lattice QCD applications for the BG/P system, with a focus on utilizing the dual-FPU and mapping the 4D or 5D problems onto the machine's torus network. We will also show some scaling results for up to 32 racks and mention areas for future improvements as we prepare for larger simulations. Lastly we show how the progress in this field has been accelerated by running on this machine.
   IEEE Computer Society  /  ACM     2 0   Y E A R S   -   U N L E A S H I N G   T H E   P O W E R   O F   H P C