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2026 01 29 meeting minutes

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Carl Pearson edited this page Jan 29, 2026 · 2 revisions

Attendees: Carl, Gabriel, Cedric, Evan, Vivek, Matthew

Towards 0.1 Release

  • Aim for HPSF Conferences

    • Late February (Germany)
    • Mid March (Chicago)

  • TODOs

    • Spack package recipe (Cedric)
    • NCCL and MPI results from the same code (Gabriel)
    • Blog post (Carl)
    • Non-GPU-aware MPI host staging (Gabriel)
    • Fixing documentation (Carl)
      • Cedric opened #201

Carried forward from last time

General Topics

  • Spack Package

    • Prototype, no really dependencies, so pretty straightforward for now

  • NCCL / MPI common examples / performance tests

    • reworking performance tests to more closely mirror the way the unit tests work
    • some runs can happen at CEA, need to look into runs at SNL
    • Gabriel working on two build system PRs

  • Kokkos Comm overview in Kokkos Team Time slot (Wednesday)

    • Present CEA slides from November
    • Carl will miss this

  • Host staging capability for non-GPU-aware MPI PR

    • still in progress, prioritized after NCCL+MPI

  • Documentation review

    • Stephen added a checklist into #201 that needed to be fixed or added
    • Automatic checks for documentation updates after 0.1?
      • seems possible for API documentation
        • start with checklist for PR that the reviewer will try to hold the author to
        • A targeted use of GH copilot to perform this check?
      • For other explainers, etc probably not possible
    • PR #181
    • Documentation needs to explain what happens for collectives with rank > 1

  • PASC paper updates? (Gabriel, Nicole)

    • Hearing back early February
    • Camera-ready would be March 20

  • Updates on CI dev container? (Cedric)

    • waiting for build system rework from Gabriel

  • MPICH (via Spack) + CudaSpace views, exclusive scan fails

    • SNL CI only tests Open MPI + CUDA
      • Carl will make a container
    • Not sure if it's an MPICH problem or something else we're doing wrong
    • Gabriel is splitting up the unit test

  • Message in mpi-interop slack channel

    • Hydo code, saw Gabriel's presentation, may have a simple use

Round Table

  • Evan

    • Kokkos Comm on HIP on Tuo
    • We were compiling a CUDA test when HIP was enabled - fixed
    • Adding CMake stuff to experiment with Derek Schafer's stream triggering

  • Gabriel

    • Submitted talk to Kokkos HPSF community summit in Germany, condensed version of Kokkos Tea Time talk

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