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  • PPN (Processes per node) - the selection of cores to participate in the test, here we recommend to use 64 cores on the socket that local to the adapter.

  • Window Size, the default is 64, for better message rate, use larger window (e.g. 512), for better bandwidth use smaller window (e.g. 32).

  • HPC-X MPI version 2.57.0 was used

  • 10000 iteration were used per test

  • OSU 5.6.2

  • Set NPS=1 (or 2) on the BIOS to reach line rate (more memory channels)

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