MPICH 4.3.2rc2 released

A new release candidate of MPICH, 4.3.2rc2, is now available for download. This release adds fixes for building with NAG Fortran compilers, HIP GPU support, and the standard MPI ABI (experimental). It can be found on our downloads page. For the full set of commits see https://github.com/pmodels/mpich/compare/v4.3.1…v4.3.2rc2/.

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                               Changes in 4.3.2
===============================================================================
# Improve libfabric provider selection when available providers have
  negative internal score

# Improve error messages when Level Zero failures are detected

# Improve localhost detection in Hydra

# Update libfabric usage to silence deprecation warnings

# Update yaksa for improved reproducibility in code generation

# Update embedded UCX to v1.19.0

# Update embedded libfabric to fix build issue with GCC 15

# Add compatibility with CUDA 13

# Fix missing const in nondestructive request test and status query
  functions

# Fix HCOLL support

# Fix crash with GPU-aware build when running on systems with no GPUs

# Fix HIP device query

# Fix singleton init with Hydra

# Fix thread safety for Level Zero memcpy functions

# Fix potential crash when release gather collective initialization fails

# Fix ch3 connect/accept protocol handling when a discard event arrives
  after a connection is already established

# Fix inlining for posix eager modules in ch4/shm

# Fix weak attribute usage in MPI ABI build

# Fix potential use-after-free bug in Hydra during spawn operations

# Fix bug in persistent bcast algorithm

# Fix bug in fabric coordinate retrieval with PMIx

# Fix integer overflow and signed/unsigned bugs in ROMIO

# Fix Quobtye ROMIO driver build error

# Fix broken string conversion in mpi_f08 module

# Fix compilation issue with mpi_f08 and NAG compiler

# Fixes for various test program bugs