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Install MPI ABI into separate prefix

Status: Open.

#14348 In open-mpi/ompi;

· eschnett opened on Aug 23, 2026

Unable to build ROMIO in Open MPI v5.0.10 with GCC 15.2.0

Status: Open.

#14342 In open-mpi/ompi;

· vterzi opened on Aug 21, 2026

Performance regression with cuda drivers 580+

Status: Open.

#14337 In open-mpi/ompi;

· angainor opened on Aug 20, 2026

ABI: Comments after running libabigail against the MPI ABI stubs

Status: Open.

#14336 In open-mpi/ompi;

· dalcinl opened on Aug 20, 2026

CUDA-aware MPI: inter-node MPI_Irecv into a CUDA IPC-imported device buffer fails

Status: Open.

#14305 In open-mpi/ompi;

· hppritcha opened on Aug 10, 2026

Stale plugins allowed to load

Status: Open.

#14299 In open-mpi/ompi;

· rhc54 opened on Aug 9, 2026

A fresh window has a name ("rdma window 3")

Status: Open.

#14298 In open-mpi/ompi;

· eschnett opened on Aug 9, 2026

MPI_Info_create_env differs before and after MPI_Init

Status: Open.

#14297 In open-mpi/ompi;

· eschnett opened on Aug 9, 2026

How to tell openmpi where, eg, help-mpirun.txt is located?

question

State-Awaiting user information

Status: Open.

#14296 In open-mpi/ompi;

· jrobcary opened on Aug 7, 2026

ABI: need to add in some plumbing for MPI T event callback object types

Target: main

Target: v6.0.x

Status: Open.

#14291 In open-mpi/ompi;

· hppritcha opened on Aug 6, 2026

New CIDs in BTL OFI

Status: Open.

Bug

#14287 In open-mpi/ompi;

· jsquyres opened on Aug 6, 2026

What is the expected timeline for MPI 5.0 / OpenMPI 6 ?

question

Target: v6.0.x

Status: Open.

#14223 In open-mpi/ompi;

· amckinstry opened on Jul 29, 2026