The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - UNPB
AU - Frey, M.
AU - Adelmann, A.
ED - Schaa, Volker RW
ED - Makino, Kyoko
ED - Snopok, Pavel
ED - Berz, Martin
TI - Computer Architecture Independent Adaptive Geometric Multigrid Solver for AMR-PIC
J2 - Proc. of ICAP2018, Key West, FL, USA, 20-24 October 2018
CY - Key West, FL, USA
T2 - International Computational Accelerator Physics Conference
T3 - 13
LA - english
AB - The accurate and efficient simulation of neighboring bunch effects in high intensity cyclotrons requires to solve large-scale N-body problems of O(10⁹…10^{z}EhNZeHn) particles coupled with Maxwell’s equations. In order to capture the effects of halo creation and evolution of such simulations with standard particle-in-cell models an extremely fine mesh with O(10⁸…10⁹) grid points is necessary to meet the condition of high resolution. This requirement represents a waste of memory in regions of void, therefore, the usage of block-structured adaptive mesh refinement algorithms is more suitable. The N-body problem is then solved on a hierarchy of levels and grids using geometric multigrid algorithms. We show benchmarks of a new implementation of an adaptive geometric multigrid algorithm using 2nd generation Trilinos packages that ran on Piz Daint with O(10⁴…10⁵) cores.
PB - JACoW Publishing
CP - Geneva, Switzerland
ER -