Phloem

Moody, AdamT [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]; Friedley, AndrewW [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]; Chambreau, ChristopherM [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]; Hanford, NathanP [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]

doi:10.11578/dc.20260715.1

DOE OSTI · code-185982

Phloem

Moody, AdamT [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Friedley, AndrewW [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Chambreau, ChristopherM [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]·Hanford, NathanP [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]

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Abstract

Phloem is a Message Passing Interface (MPI) micro-benchmarking suite featuring sub-communicator collectives, methods for finding slow links on MPI interconnects, and point-to-point MPI benchmarks, including a messaging rate benchmark. All of the benchmarks except for ones related exclusively to finding slow links are GPU-aware via the Umpire resource management library.

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Moody, AdamT [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Friedley, AndrewW [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Chambreau, ChristopherM [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)], Hanford, NathanP [Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)]. 2026-05-06. Phloem. https://doi.org/10.11578/dc.20260715.1

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