Section: New Results

Performance of Particle-in-Cell methods

Participants : Yann Barsamian, Sever Hirstoaga, Eric Violard.

In a two-dimensional framework, in [6] we optimized a Particle-in-Cell (PIC) code by analyzing different data structures for the particles and for the grid fields with the aim of improving the cache reuse and by using the vectorization from the compiler. We also parallelized the code with OpenMP/MPI and satisfactory strong and weak scaling up to 8192 cores were obtained on the supercomputer CURIE.

Currently [15] we are extending and improving this work to a three-dimensional electrostatic PIC code.