Porting Applications to Arm-based Processors

Arm-based server processors are becoming increasingly used for building massively parallel HPC systems. This triggers the need for porting HPC applications to such architectures and to collect more knowledge about performance benefits and challenges. In this contribution, we report on experiences made during our ongoing efforts to port applications to Arm-based platforms at the Jülich Supercomputing Centre (JSC). The performance of these applications is explored on different Arm-based node architectures plus an x86-based architecture for reference.