Geodesic
Optimization of particle-in-cell simulations for Vlasov-Poisson system with strong magnetic field
Edwin Chacon-Golcher1 ; Sever A. Hirstoaga2 ; Mathieu Lutz3
1 Institute of Physics of the ASCR, ELI-Beamlines, 18221 Prague, Czech Republic
2 Inria Nancy-Grand Est, TONUS Project & IRMA (UMR CNRS 7501), Université de Strasbourg, France
3 IRMA (UMR CNRS 7501), Université de Strasbourg, France & Institut de Mathématiques de Toulouse (UMR CNRS 5219), Université de Toulouse, France
ESAIM. Proceedings, Tome 53 (2016), pp. 177-190.

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We study the dynamics of charged particles under the influence of a strong magnetic field by numerically solving the Vlasov-Poisson and guiding center models. By using appropriate data structures, we implement an efficient (from the memory access point of view) particle-in-cell method which enables simulations with a large number of particles. We present numerical results for classical one-dimensional Landau damping and two-dimensional Kelvin-Helmholtz test cases. The implementation also relies on a standard hybrid MPI/OpenMP parallelization. Code performance is assessed by the observed speedup and attained memory bandwidth.
DOI : 10.1051/proc/201653011

Edwin Chacon-Golcher 1 ; Sever A. Hirstoaga 2 ; Mathieu Lutz 3

1 Institute of Physics of the ASCR, ELI-Beamlines, 18221 Prague, Czech Republic
2 Inria Nancy-Grand Est, TONUS Project & IRMA (UMR CNRS 7501), Université de Strasbourg, France
3 IRMA (UMR CNRS 7501), Université de Strasbourg, France & Institut de Mathématiques de Toulouse (UMR CNRS 5219), Université de Toulouse, France 
@article{EP_2016_53_a11,
     author = {Edwin Chacon-Golcher and Sever A. Hirstoaga and Mathieu Lutz},
     title = {Optimization of particle-in-cell simulations for {Vlasov-Poisson} system with strong magnetic field},
     journal = {ESAIM. Proceedings},
     pages = {177--190},
     publisher = {mathdoc},
     volume = {53},
     year = {2016},
     doi = {10.1051/proc/201653011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc/201653011/}
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Edwin Chacon-Golcher; Sever A. Hirstoaga; Mathieu Lutz. Optimization of particle-in-cell simulations for Vlasov-Poisson system with strong magnetic field. ESAIM. Proceedings, Tome 53 (2016), pp. 177-190. doi : 10.1051/proc/201653011. http://geodesic.mathdoc.fr/articles/10.1051/proc/201653011/

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