The Open MPI Team, representing a consortium of research, academic, and industry partners, is pleased to announce a major release of Open MPI and the beginning of a new "super stable" release series: version 1.6.
The Open MPI project maintains two simultaneous release series: - v1.4.x (i.e., v1.even): "super stable" series, where only bug fixes are applied - v1.5.x (i.e., v1.odd): "feature" series, where new features are developed v1.6 is a major release; it effectively deprecates both the v1.4.x and v1.5.x series, and replaces v1.4.x as the current "super stable" series. A forthcoming v1.7 series will become the new "feature" series. *All users* -- including production users and downstream providers -- are encouraged to upgrade to v1.6. Note that v1.6 is ABI compatible with the entire v1.5.x series, but is not ABI compatible with the v1.4.x series. See http://www.open-mpi.org/software/ompi/versions/ for a description of Open MPI's release methodology. Version 1.6 can be downloaded from the main Open MPI web site or any of its mirrors (Windows binaries will be available shortly; mirrors will also be updating soon). Here is a list of changes in v1.6 as compared to v1.5.5: - Fix some process affinity issues. When binding a process, Open MPI will now bind to all available hyperthreads in a core (or socket, depending on the binding options specified). --> Note that "mpirun --bind-to-socket ..." does not work on POWER6- and POWER7-based systems with some Linux kernel versions. See the FAQ on the Open MPI web site for more information. - Add support for ARM5 and ARM6 (in addition to the existing ARM7 support). Thanks to Evan Clinton for the patch. - Minor Mellanox MXM fixes. - Properly detect FDR10, FDR, and EDR OpenFabrics devices. - Minor fixes to the mpirun(1) and MPI_Comm_create(3) man pages. - Prevent segv if COMM_SPAWN_MULTIPLE fails. Thanks to Fujitsu for the patch. - Disable interposed memory management in fakeroot environments. This fixes a problem in some build environments. - Minor hwloc updates. - Array versions of MPI_TEST and MPI_WAIT with a count==0 will now return immediately with MPI_SUCCESS. Thanks to Jeremiah Willcock for the suggestion. - Update VampirTrace to v5.12.2. - Properly handle forwarding stdin to all processes when "mpirun --stdin all" is used. - Workaround XLC assembly bug. - OS X Tiger (10.3) has not been supported for a while, so forcibly abort configure if we detect it. - Fix segv in the openib BTL when running on SPARC 64 systems. - Fix some include file ordering issues on some BSD-based platforms. Thanks to Paul Hargove for this (and many, many other) fixes. - Properly handle .FALSE. return parameter value to attribute copy callback functions. - Fix a bunch of minor C++ API issues; thanks to Fujitsu for the patch. - Fixed the default hostfile MCA parameter behavior. - Per the MPI spec, ensure not to touch the port_name parameter to MPI_CLOSE_PORT (it's an IN parameter). -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/