The Open MPI Team, representing a consortium of research, academic, and industry partners, is pleased to announce the release of Open MPI version 2.1.2. v2.1.2 is a bug fix release that includes a variety of bug fixes and some performance fixes. All users are encouraged to upgrade to v2.1.2 if currently using the v2.1.x release stream, and not wishing to upgrade to the v3.0.x release stream.
Version 2.1.2 can be downloaded from the main Open MPI web site: https://www.open-mpi.org/software/ompi/v2.1/ NEWS 2.1.2 -- September, 2017 ------------------------ Bug fixes/minor improvements: - Update internal PMIx version to 1.2.3. - Fix some problems when using the NAG Fortran compiler to build Open MPI and when using the compiler wrappers. Thanks to Neil Carlson for reporting. - Fix a compilation problem with the SM BTL. Thanks to Paul Hargrove for reporting. - Fix a problem with MPI_IALLTOALLW when using zero-length messages. Thanks to Dahai Guo for reporting. - Fix a problem with C11 generic type interface for SHMEM_G. Thanks to Nick Park for reporting. - Switch to using the lustreapi.h include file when building Open MPI with Lustre support. - Fix a problem in the OB1 PML that led to hangs with OSU collective tests. - Fix a progression issue with MPI_WIN_FLUSH_LOCAL. Thanks to Joseph Schuchart for reporting. - Fix an issue with recent versions of PBSPro requiring libcrypto. Thanks to Petr Hanousek for reporting. - Fix a problem when using MPI_ANY_SOURCE with MPI_SENDRECV. - Fix an issue that prevented signals from being propagated to ORTE daemons. - Ensure that signals are forwarded from ORTE daemons to all processes in the process group created by the daemons. Thanks to Ted Sussman for reporting. - Fix a problem with launching a job under a debugger. Thanks to Greg Lee for reporting. - Fix a problem with Open MPI native I/O MPI_FILE_OPEN when using a communicator having an associated topology. Thanks to Wei-keng Liao for reporting. - Fix an issue when using MPI_ACCUMULATE with derived datatypes. - Fix a problem with Fortran bindings that led to compilation errors for user defined reduction operations. Thanks to Nathan Weeks for reporting. - Fix ROMIO issues with large writes/reads when using NFS file systems. - Fix definition of Fortran MPI_ARGV_NULL and MPI_ARGVS_NULL. - Enable use of the head node of a SLURM allocation on Cray XC systems. - Fix a problem with synchronous sends when using the UCX PML. - Use default socket buffer size to improve TCP BTL performance. - Add a mca parameter ras_base_launch_orted_on_hn to allow for launching MPI processes on the same node where mpirun is executing using a separate orte daemon, rather than the mpirun process. This may be useful to set to true when using SLURM, as it improves interoperability with SLURM's signal propagation tools. By default it is set to false, except for Cray XC systems. - Remove support for big endian PowerPC. - Remove support for XL compilers older than v13.1 - Remove IB XRC support from the OpenIB BTL due to loss of maintainer. Thanks very much, Open MPI Release Team -- Howard Pritchard HPC-DES Los Alamos National Laboratory
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