Dr.-Ing. Dawei Zheng

Ehemaliger Mitarbeiter

Topics
  • Beam dynamics simulation in particle accelerators
  • Fast and accurate numerical solution for Poisson solver
  • Software package development for designing and operating particle accelerators
Research Interests
  • Advance numerical methods study in electromagnetic simulations
  • FFT implementation, and related applications, e.g. discrete convolution for static electric potential calculation
  • Parallel programming in HPC, in particular, efficiency improvement regarding both software and hardware levels
  • Inverse problems, ill-posed problems and regularization methods
Publications

D. Zheng, G. Pöplau, U. van Rienen, On several Green's function methods for fast Poisson solver in free space, in Bartel, A., Clemens, M., Günther, M., ter Maten, E.J.W. (Eds.), Scientific Computing in Electrical Engineering (SCEE 2014), Springer, Mathematics in Industry, Vol. 23 (2016): 91-99.

D. Zheng, U. van Rienen: A Fast Poisson Solver for 3D Space Charge Calculations in a CPU+GPU Heterogeneous Routine. IEEE Transactions on Magnetics, IEEE Early Access Articles. DOI: 10.1109/TMAG.2015.2497540

D. Zheng, G. Pöplau, U. van Rienen: Efficiency optimization of fast Poisson solver in beam dynamics simulation. Computer Physics Communications Vol. 198, Jan. 2016: 82-96. DOI: 10.1016/j.cpc.2015.09.005.

D. Zheng, U. van Rienen: A Heterogeneous CPU+GPU Poisson Solver for Space Charge Calculations in Beam Dynamics Studies. Verhandlungen der Deutschen Physikalische Gesellschaft e.V., DPG Frühjahrstagung 2016, Darmstadt/Germany, 16 March 2016 (Poster)

D. Zheng, U van Rienen: Using Open MP parallelization for Green'’s function-FFT Poisson solver to simulate space charge effects in particle accelerators. (KWT 2016), Kleinwalsertal, Austria, 3-9 September 2016 (1-page abstract)

D. Zheng, U. van Rienen: A Fast Poisson Solver for 3D Space Charge Calculations in a CPU+GPU Heterogeneous Routine. Int. Conference on the Computation of Electromagnetic Fields (COMPUMAG 2015), Montréal, Canada, 28 June - 2 July, 2015, paper number: PB5-2.

 

D. Zheng, U. van Rienen, J. Quiang: An improved parallel Poisson solver for space charge calculation in beam dynamics simulation. 12th Intl. Computational Accelerator Physics Conf. (ICAP 2015), Shanghai, China, (2015), in press.

D. Zheng, A. Markovik, G. Pöplau, U. van Rienen, Study of a Fast Convolution Method for Solving the Space Charge Fields of Charged Particle Bunches, Proc. of 5th Intl. Particle Accelerator Conf. (IPAC 2014): pp.418–421.

D. Zheng, G. Pöplau, U. van Rienen, On several Green’s function methods for fast Poisson solver in free space, Program & Book of Abstracts - The 10th Conference on Scientific Computing in Electrical Engineering 2014 (SCEE 2014), Wuppertal, Germany, July 22-25, 87-88 , 2014.