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High-Performance Simulations of Coherent Synchrotron Radiation on Multicore GPU and CPU Platforms |
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- B. Terzić, A.L. Godunov
ODU, Norfolk, Virginia, USA
- A. Arumugam, D. Ranjan, M. Zubair
ODU CS, Norfolk, Virginia, USA
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Coherent synchrotron radiation (CSR) is an effect of self-interaction of an electron bunch as it traverses a curved path. It can cause a significant emittance degradation and microbunching. We present a new high-performance 2D, particle-in-cell code which uses massively parallel multicore GPU/GPU platforms to alleviate computational bottlenecks. The code formulates the CSR problem from first principles by using the retarded scalar and vector potentials to compute the self-interaction fields. The speedup due to the parallel implementation on GPU/CPU platforms exceeds three orders of magnitude, thereby bringing a previously intractable problem within reach. The accuracy of the code is verified against analytic 1D solutions (rigid bunch).
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Slides MOBC2 [4.866 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2015-MOBC2
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