Discusses MPI on Knights Landing, which has the same interfaces as on Intel Xeon processor based systems. Discusses how the characteristics of hybrid MPI/OpenMP performance may require tuning as the optimal balance of MPI ranks and OpenMP threads may vary.
Most of this book focuses on intranode parallelism, while this chapter, Message Passing Interface (MPI), and Chapter 16, Partitioned Global Address Space (PGAS), focus on internode parallelism. Parallelism ...
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