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DTSTART;TZID=America/Denver:20231113T103000
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UID:submissions.supercomputing.org_SC23_sess441_ws_p3hpc108@linklings.com
SUMMARY:Benchmarking a Portable Lattice Quantum Chromodynamics Kernel Writ
 ten in Kokkos and MPI
DESCRIPTION:Simon Schlepphorst (Forschungszentrum Jülich) and Stefan Krieg
  (Forschungszentrum Jülich, University of Bonn)\n\nSimulations of Lattice 
 Quantum Chromodynamics (LQCD) are an important application (two digit perc
 entage of cycles) on major High Performance Computing (HPC) installations,
  including systems high up on and leading the top500 list. In the rapidly 
 changing hardware landscape of HPC, binding workforce to optimize simulati
 on software for every architecture becomes a sustainability issue.\n\nIn t
 his work, we explore the feasibility of using performance portable paralle
 l code for an important LQCD kernel. Fusing the Kokkos C++ Performance Por
 tability EcoSystem with MPI allows to scale on massive parallel machines w
 hile still being able to target a plentitude of different architectures wi
 th the same simple code.  We report on benchmarking results for a range of
  currently deployed and recently introduced systems, including AMD EPYC 77
 42, AMD MI250, Fujitsu A64FX, Nvidia A100 and Nvidia H100 components, with
  mostly encouraging results.\n\nTag: Performance Measurement, Modeling, an
 d Tools, Performance Optimization\n\nRegistration Category: Workshop Reg P
 ass\n\nSession Chairs: Judith C. Hill (Lawrence Livermore National Laborat
 ory (LLNL)), CJ Newburn (NVIDIA Corporation), Scott J. Parker (Argonne Nat
 ional Laboratory (ANL)), and John Pennycook (Intel Corporation)\n\n
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