Poor performance with KOKKOS + GPU


I was able to address a memory issue that affects Kokkos EAM on the GPU, so now the performance is better (~2x faster for the best case on 2 K80 GPUs x 4 MPI), see https://github.com/lammps/lammps/pull/398. This will be merged into LAMMPS soon.


Good news !

I will try KOKKOS package again when the change will be available in LAMMPS. Thanks for letting me know.