July 29 2024

Attds:

Note-taker

Carl

General Topics

• CommunicationSpace PR: #109
  • Carl working through this, mostly with Gabriel reviewing
• University of New Mexico wants to write a Kokkos Comm backend and experiment with some communication API ideas / stream-triggered API ideas.

Working Groups

• NCCL (Gabriel, Nicole, Evan)
• CI for GPUs (Carl)
  • Starting with CUDA 12.5 + OpenMPI 5
  • 50% done, waiting on some bureaucracy before I can actually get it up and running
  • Sandia-specific container images for our builds/tests on Sandia systems, using a Github runner
  • Results will be externally visible, but I don't think container images will be
    • Maybe someday there will be free GPU CI on github
  • Sandia internal documentation @ https://gitlab-ex.sandia.gov/cwpears/kokkos-comm-internal
• Applications
• Modern C++ / MPI
• Accelerator-Initiated Communication / Support
• Smart NICs

Round Table