Issues

• Do not free resources in MPI_*_free calls

  JuliaParallel/MPI.jl#977 · Filter by author eschnett opened on Sep 8, 2026

• Use @ccall gc_safe=true for blocking calls

  JuliaParallel/MPI.jl#954 · Filter by author vchuravy opened on Jul 13, 2026
  6

• using MPI with mpiexecjl fails with Julia 1.13.0-rc1

  JuliaParallel/MPI.jl#951 · Filter by author tverho opened on May 5, 2026

• Auto-generate MPI API bindings from MPI standard

  JuliaParallel/MPI.jl#938 · Filter by author eschnett opened on Mar 12, 2026
  1

• Simple hello world example fails with JuliaC using --experimental --trim

  JuliaParallel/MPI.jl#931 · Filter by author cmhamel opened on Jan 24, 2026

• Distributed.jl with MPI.jl: execution time increases with each iteration, after MPI.jl > 0.19.2

  JuliaParallel/MPI.jl#930 · Filter by author a2ray opened on Jan 23, 2026
  7

• Reason for omitting Isendrecv from top-level API?

  JuliaParallel/MPI.jl#928 · Filter by author tb6g16 opened on Dec 18, 2025
  1

• MPI.REQUEST_NULL only pretends to be a constant

  JuliaParallel/MPI.jl#921 · Filter by author vchuravy opened on Nov 7, 2025
  1

• Document that users of MultiRequest/UnsafeMultiRequest need to call free on the request

  documentation
  JuliaParallel/MPI.jl#920 · Filter by author vchuravy opened on Nov 7, 2025
  1

• Cray MPI autodetection fails on AMD MI300A node (missing mpi_gtl_hsa preload)

  bugCray MPI
  JuliaParallel/MPI.jl#919 · Filter by author LasNikas opened on Nov 3, 2025
  1

• [CI] Restore running tests using system mpich

  CI
  JuliaParallel/MPI.jl#906 · Filter by author giordano opened on Apr 29, 2025

• Mention MPIClusterManagers.jl in the README of this repo?

  JuliaParallel/MPI.jl#904 · Filter by author DilumAluthge opened on Apr 29, 2025

• Tracing MPI calls in jll packaged shared libraries

  JuliaParallel/MPI.jl#893 · Filter by author benegee opened on Feb 20, 2025
  

• Reductions with CUDA are sometimes wrong

  bugCUDA 🎴
  JuliaParallel/MPI.jl#892 · Filter by author Sbozzolo opened on Feb 5, 2025
  10

• CI: Threads tests segfault on Julia nightly

  CI
  JuliaParallel/MPI.jl#889 · Filter by author giordano opened on Nov 18, 2024
  1

• Mysterious serialization crash during bcast

  JuliaParallel/MPI.jl#881 · Filter by author alexandrebouchard opened on Sep 26, 2024

• Large-count API

  APIenhancement
  JuliaParallel/MPI.jl#880 · Filter by author vchuravy opened on Sep 25, 2024

• MPIPreferences fails with vendor="cray"

  JuliaParallel/MPI.jl#849 · Filter by author omlins opened on Jul 31, 2024
  2

• Investigate need for JULIA_CUDA_MEMORY_POOL=none

  JuliaParallel/MPI.jl#843 · Filter by author vchuravy opened on Jun 19, 2024
  1

• AMDGPU tests are failing in allgather

  CIrocm
  JuliaParallel/MPI.jl#841 · Filter by author vchuravy opened on Jun 19, 2024
  

• Ookami: MPI error opal_libevent2022_evthread_use_pthreads

  JuliaParallel/MPI.jl#835 · Filter by author PetrKryslUCSD opened on Jun 6, 2024
  5

• Should MPI.mpiexec() be ENV["MPITRAMPOLINE_MPIEXEC"] when MPIPreference.binary = MPITrampoline_jll?

  JuliaParallel/MPI.jl#820 · Filter by author Sbozzolo opened on Feb 23, 2024
  2

• Proper Locking

  JuliaParallel/MPI.jl#809 · Filter by author JBlaschke opened on Jan 23, 2024
  

• Rename extensions to include MPI in name

  JuliaParallel/MPI.jl#802 · Filter by author luraess opened on Nov 24, 2023
  15

• Make MPItrampoline the default

  MPIPreferences
  JuliaParallel/MPI.jl#801 · Filter by author simonbyrne opened on Nov 14, 2023 · 1.0
  6