[mpich-announce] Announcing the availability of mpich-3.1rc1

[Antonio J. Peña]

The MPICH team is pleased to announce the availability of a new preview
release (mpich-3.1rc1).  This is a release candidate of the upcoming MPICH 
3.1, and adds several capabilities including a fully integrated source for 
vanilla MPICH and the IBM PE/BG device, several improvements for the Intel 
Xeon Phi architecture, improved support for fault tolerance, improvements to 
MPI RMA for shared memory communication, MPI large count 64-bit safety, and 
MPI Tools interface improvements.  This release also fixes several bugs present 
in 3.0.4.

http://www.mpich.org

A list of changes in this release is included at the end of this email.

Regards,

The MPICH Team

===============================================================================
                                Changes in 3.1rc1
===============================================================================

 # Integrated MPICH-PAMI code base for Blue Gene/Q and other IBM
   platforms.

 # Several improvements to the SCIF netmod.  (code contribution from
   Intel).

 # Major revamp of the MPI_T interface added in MPI-3.

 # Added environment variables to control a lot more capabilities for
   collectives.  See the README.envvar file for more information.

 # Allow non-blocking collectives and fault tolerance at the same
   time. The option MPIR_PARAM_ENABLE_COLL_FT_RET has been deprecated as
   it is no longer necessary.

 # Improvements to MPI_WIN_ALLOCATE to internally allocate shared
   memory between processes on the same node.

 # Performance improvements for MPI RMA operations on shared memory
   for MPI_WIN_ALLOCATE and MPI_WIN_ALLOCATE_SHARED.

 # Enable shared library builds by default.

 # Allow non-blocking collectives and fault tolerance at the same
   time. The option MPIR_PARAM_ENABLE_COLL_FT_RET has been deprecated as
   it is no longer necessary.

 # Improvements to MPI_WIN_ALLOCATE to internally allocate shared
   memory between processes on the same node.

 # Performance improvements for MPI RMA operations on shared memory
   for MPI_WIN_ALLOCATE and MPI_WIN_ALLOCATE_SHARED.

 # Enable shared library builds by default.

 # Upgraded hwloc to 1.7.2.

 # Several improvements to the Hydra-SLURM integration.

 # MPICH now supports operations on very large datatypes (those that describe
   more than 32 bits of data).  This work also allows MPICH to fully support
   MPI-3's introduction of MPI_Count.

 # Several other minor bug fixes, memory leak fixes, and code cleanup.

   A full list of changes is available at the following link:

     http://git.mpich.org/mpich.git/shortlog/v3.0.4..v3.1rc1

-- 
Antonio J. Peña
http://www.mcs.anl.gov/~apenya