Minisymposium Presentation

We investigate how code refactoring of CLOUDSC benchmark impacts the performance portability across different hardware platforms and code revisions. For hardware platforms, we choose Intel® Xeon® Processor CPUs and Intel® Data Center GPU Max Series GPUs. For code revisions, we choose Fortran with OpenMP, Fortran with OpenMP offload and SYCL versions of the CLOUDSC benchmark. Besides performance, we discuss main challenges identified in cross-platform comparisons and propose some possible methods to resolve them.