Lattice QCD Calculations

Andreas Frommer
Bergische Universität-Gesamthochschule Wuppertal

Lattice QCD simulates the strong interaction bewtween quarks as constituents of matter. These simulations require a huge amount of computation and are typically done on massively parallel computers. Different physical models yield different numerical challenges. Important common features are the underlying nearest neighbour coupling on a large 4-dimensional lattice, and the fact that coupling coefficients are produced stochastically. The talk will give an overview on how techniques from numerical linear algebra have helped to improve lattice QCD simulations in the last ten years and will highlight the challenges on the road to PetaFlop/s simulations which are expected to take place by the end of this decade.

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