Apr 07 2025 - kokkos/kokkos-comm GitHub Wiki

General Topics

• Kokkos Comm @ HPSF

  • Thu May 8, 1:35 Algorithms session, 20 minute talk
  • ~7 minutes each
    • Carl: Intro / MPI-interop
    • Nicole/Evan: more advanced topic
    • Cedric/Gabriel: more advanced topic

• CI @ Sandia

  • PR open to test the runner (not working yet)

• In Progress Stuff

  • Contributed examples https://github.com/kokkos/kokkos-comm/pull/158
    • in progress @ CExA, Gabriel reviewing
    • 1D matrix-vector, 2D matrix vector (multiple communicators), matrix transpose for FFT
  • persistent: https://github.com/kokkos/kokkos-comm/pull/156
    • Nicole still working on this
  • NCCL: https://github.com/kokkos/kokkos-comm/pull/128
    • Carl will come back to this
    • Nvidia has a NCCL-related test repo that may have some inspiration
  • CUDA reductions: https://github.com/kokkos/kokkos-comm/issues/137
    • Carl needs to look into this

• Kokkos + MPI + Profiling

  • Cedric: people face challenges with integrating kokkos + MPI profiling
    • e.g. Trilinos has some tooling that makes a little histogram of process times. Kokkos Comm could do something similar for users of Kokkos

Round Table

• Vivek
  • Doing an auto-tuning talk with Kevin Huck at KUG, Kokkos Comm + distributed autotuning as future work?