Optimizing the hybrid parallelization of BHAC
نویسندگان
چکیده
We present our experience with the modernization on GR-MHD code BHAC, aimed at improving its novel hybrid (MPI+OpenMP) parallelization scheme. In doing so, we showcase use of performance profiling tools usable x86 (Intel-based) architectures. Our characterization and threading analysis provided guidance in concurrency thus efficiency OpenMP parallel regions. assess scaling communication patterns order to identify alleviate MPI bottlenecks, both runtime switches precise interventions. The optimized version BHAC improved by ∼28%, making it viable for several hundreds supercomputer nodes. finally test whether porting such optimizations different hardware is likewise beneficial new architecture running ARM A64FX vector
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ژورنال
عنوان ژورنال: Astronomy and Computing
سال: 2022
ISSN: ['2213-1345', '2213-1337']
DOI: https://doi.org/10.1016/j.ascom.2021.100509