[mpich-announce] Announcing the availability of mpich-3.1rc3
raffenet at mcs.anl.gov
Tue Feb 4 17:14:27 CST 2014
The MPICH team is pleased to announce the availability of a new preview
release (mpich-3.1rc3). 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.
A list of changes in this release is included at the end of this email.
The MPICH Team
Changes in 3.1rc3
# Implement runtime compatibility with MPICH-derived implementations
the ABI Compatibility Initiative (see www.mpich.org/abi for more
# Integrated MPICH-PAMI code base for Blue Gene/Q and other IBM
# Several improvements to the SCIF netmod. (code contribution from
# 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.
# Upgraded hwloc to 1.8.
# Several improvements to the Hydra-SLURM integration.
# MPICH now supports operations on very large datatypes (those that
more than 32 bits of data). This work also allows MPICH to fully
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:
A full list of bugs that have been fixed is available at the
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