MPICH 3.1 released

The MPICH team is pleased to announce the availability of a new stable release (mpich-3.1). This is a new major release that adds several capabilities including full binary (ABI) compatibility with Intel MPI 5.0, an integrated MPICH-PAMID code base for IBM BG/Q (contributed by IBM), several improvements to Intel Xeon Phi (contributed by Intel and NEC), a major revamp of the MPI_T tools interface, large improvements to one-sided communication in shared memory environments, a number of improvements to mpiexec process binding capabilities, various improvements to the support of large counts (more than 2GB data), and a large number of bug fixes. All production environments are encouraged to upgrade to this release.
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