[mpich-announce] Announcing the availability of MPICH 3.4.2

[Raffenetti, Kenneth J.]

A new stable release of MPICH, 3.4.2, is now available for download. This is the second bug-fix release in the 3.4.x series. This release contains fixes for GPU support and other user-reported bugs and build issues.

You can find the release on our downloads page (https://www.mpich.org/downloads/). Production environments are encouraged to upgrade to this release.

Regards,
The MPICH team

===============================================================================
                               Changes in 3.4.2
===============================================================================

# Update configure options to support --disable-ze and --disable-cuda
  to explicitly disable GPU-awareness

# Update embedded hwloc to version 2.4.1. Fixes a build issue on
  systems with OpenCL.

# Fixes for Argobots thread package support.

# Fixes for the DAOS ROMIO driver (thanks to Intel for contributing)

# Fix additional bugs in GPU-aware nonblocking op collectives

# Fix 'make check' errors with embedded MPL and json-c libraries

# Fix support for GNI provider in ch4:ofi netmod

# Fix bug in dynamic window memory registration with ch4:ofi netmod

# Fix bug in persistent pt2pt when used with MPI_PROC_NULL

# Fix bug in hydra nameserver when freeing published entries

# Fix bugs in GPFS ROMIO driver (thanks to IBM for contributing)

# Fix bug in darray type creation (thanks to IBM for contributing)

# Fix bugs in XPMEM support

# Fix bug in MPI_Comm_spawn_multiple where non-root args were not ignored
   
A full list of changes is available at the following link:

     https://github.com/pmodels/mpich/compare/v3.4.1…v3.4.2