ECHO-3DHPC: Advance the performance of astrophysics simulations with code modernization

Abstract

We present recent developments in the parallelization scheme of ECHO-3DHPC, an efficient astrophysical code used in the modelling of relativistic plasmas. With the help of the Intel Software Development Tools, like Fortran compiler and Profile-Guided Optimization (PGO), Intel MPI library, VTune Amplifier and Inspector we have investigated the performance issues and improved the application scalability and the time to solution. The node-level performance is improved by $2.3\times$ and, thanks to the improved threading parallelisation, the hybrid MPI-OpenMP version of the code outperforms the MPI-only, thus lowering the MPI communication overhead.

7 pages, 6 figures. Accepted for publication on The Parallel Universe Magazine ( https://software.intel.com/en-us/parallel-universe-magazine )