2020 - mpiwg-hybrid/hybrid-issues GitHub Wiki

Possible Future Topics

  1. HIP Streams, Stream triggered comms (AMD Speaker)
  2. OneAPI, libfabric (HMEM) (Intel Speaker)
  3. Olga Pearce – GPU communication bottlenecks @LLNL (e.g. COMB)
  4. Ryan Grant – Challenges for applications
    • E.g. Determining how MPI library will handle GPU communications
  5. Jim Dinan – NCCL and NVSHMEM: GPU Comms Best Practices
  6. Pavan Balaji – Proposal to pass stream to MPI
  7. User Defined Memory Regions (UMR) (Mellanox Speaker)

Past Topics

  1. Kickoff and Stream-Based Communication Discussion (Jim Dinan) [slides]
  2. Callback-based Completion Notification (Joseph Schuchart and Joachim Protze)
    • Fibers are not (P)Threads: The Case for Loose Coupling of Asynchronous Programming Models and MPI Through Continuations [EuroMPI ‘20]
    • MPI Detach - Asynchronous Local Completion [EuroMPI ‘20]
  3. CUDA Streams and Graphs, GPUDirect Async, GPUDirect Verbs (Stephen Jones, NVIDIA)
  4. ECP Recap - Feedback from ECP discussions (Ryan Grant and others)