ICAP-2002 Abstracts and Posters

ICAP 2002 Abstracts and Posters

Parallel Simulation Algorithms for the Strong-Strong Beam-Beam Interaction

Abstract

Adding a third dimension to the simulation of the strong-strong beam-beam effect can, by mechanisms such as the hourglass effect and phase averaging, significantly change the results of the simulations, however, CPU requirements will be beyond the reach of single-processor machines. We discuss a set of parallel algorithm for the treatment of the problem, based on particle-mesh methods and rapid elliptic solvers. Particle tracking, particle-mesh deposition, and field calculation are three tasks which have to be parallelized; they have competing requirements for localization of the tasks on the parallel machines. We discuss different possible parallelization schemes. We present a code based on spatial domain decomposition in the longitudinal direction, which shows good scaling behavior for the case of storage rings with small synchrotron tunes. Benchmarking results and possible applications will be discussed.

A. Kabel, SLAC

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