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MPI_COMPLEX32 is always disabled (5.0.11)

Status: Open.

#14471 In open-mpi/ompi;

· eschnett opened on Sep 20, 2026

opal_os_dirpath_create() still follows a symlink when the path has a trailing separator

Status: Open.

#14469 In open-mpi/ompi;

· tonyskjellum opened on Sep 20, 2026

Vendored openpmix/prrte pins on v5.0.x miss two already-fixed upstream bugs (pmix_getline truncation, macOS endian false-positive)

Status: Open.

#14451 In open-mpi/ompi;

· victor-tsang opened on Sep 16, 2026

Launch only on mapped locations

Status: Open.

#14450 In open-mpi/ompi;

· rhc54 opened on Sep 16, 2026

coll/acoll segfaults with MPI_IN_PLACE Allreduce

Status: Open.

#14439 In open-mpi/ompi;

· gkatev opened on Sep 15, 2026

MPI_Dist_graph_create_adjacent on a communicator that already has a topology returns a communicator that still reports the old one

Status: Open.

#14438 In open-mpi/ompi;

· eschnett opened on Sep 15, 2026

MPI_Ineighbor_alltoall uses the wrong block matching for duplicate neighbour edges

Status: Open.

#14430 In open-mpi/ompi;

· eschnett opened on Sep 14, 2026

Concern about a potential memory leak from a double call to pml_add_comm

Status: Open.

#14415 In open-mpi/ompi;

· vanman-nguyen opened on Sep 10, 2026

Unwanted debug/verbose output with nVidia card

Status: Open.

#14413 In open-mpi/ompi;

· amckinstry opened on Sep 10, 2026

MPI_T Events: What is considered dereferencing a handle?

Status: Open.

#14410 In open-mpi/ompi;

· Matthew-Whitlock opened on Sep 9, 2026

UCX Memory mismatch in ompi_coll_base_gather_intra_binomial

Status: Open.

#14385 In open-mpi/ompi;

· DreamerLuu opened on Sep 3, 2026

uct BTL busy-spins forever in singleton MPI_Init() on a system with no RDMA hardware (v5.0.10)

Status: Open.

#14383 In open-mpi/ompi;

· GitPaean opened on Sep 3, 2026