The numerical solution of the Vlasov-Fokker-Planck equation is a wellestablished method to simulate the dynamics, including the self-interactionwith its own wake field, of an electron bunch in a storage ring. In this paperwe present Inovesa, a modularly extensible program that uses OpenCL tomassively parallelize the computation. It allows a standard desktop PC to workwith appropriate accuracy and yield reliable results within minutes. We providenumerical stability-studies over a wide parameter range and compare ournumerical findings to known results. Simulation results for the case ofcoherent synchrotron radiation will be compared to measurements that probe theeffects of the micro-bunching instability occurring in the short bunchoperation at ANKA. It will be shown that the impedance model based on theshielding effect of two parallel plates can not only describe the instabilitythreshold, but also the presence of multiple regimes that show differences inthe emission of coherent synchrotron radiation.
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