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Cannot build the MPI ABI on macOS 26.2 arm64

Status: Open.

#7719 In pmodels/mpich;

· dalcinl opened on Feb 6, 2026

Gap between MPI_Abort and killing the process

aurora

Status: Open.

#7716 In pmodels/mpich;

· colleeneb opened on Feb 5, 2026

Strange help text in configure

Status: Open.

#7715 In pmodels/mpich;

· eschnett opened on Feb 5, 2026

Crashing with MPIR_CVAR_CH4_OFI_EAGER_THRESHOLD=1000000 on Aurora

aurora

Status: Open.

#7713 In pmodels/mpich;

· colleeneb opened on Feb 4, 2026

MPI_Probe crash with messages from large number of ranks on Aurora

aurora

Status: Open.

#7711 In pmodels/mpich;

· ryanstocks00 opened on Jan 30, 2026

MPI_Comm_spawn performance regression on Mac ARM

Status: Open.

#7707 In pmodels/mpich;

· scott-routledge2 opened on Jan 21, 2026

MPI_Comm_split_type not working

Status: Open.

#7705 In pmodels/mpich;

· lindsayad opened on Jan 16, 2026

Cannot built MPICH with flang and with shared libraries

Status: Open.

#7698 In pmodels/mpich;

· eschnett opened on Dec 28, 2025

test/mpi/rma: is win_shared_put_flush_load synchronization before checking data correct?

Status: Open.

#7697 In pmodels/mpich;

· zachdworkin opened on Dec 19, 2025

unable to find mpich.a file - mpich-4.2.0

Status: Open.

#7692 In pmodels/mpich;

· puneet336 opened on Dec 11, 2025

[MPIX Stream] workq-based MPIX P2P Stream test failure

Status: Open.

#7670 In pmodels/mpich;

· R0n12 opened on Nov 12, 2025

MPI-IO (ROMIO) collective buffering performance bottleneck on Aurora

aurora

Status: Open.

#7645 In pmodels/mpich;

· pkcoff opened on Oct 24, 2025