Log Message:
Update to OpenMPI 1.5.5

Changes in 1.5.5
----------------

- Many, many portability configure/build fixes courtesy of Paul
  Hargrove.  Thanks, Paul!
- Fixed shared memory fault tolerance support compiler errors.
- Removed not-production-quality rshd and tmd PLM launchers.
- Minor updates to the Open MPI SRPM spec file.
- Fixed mpirun's --bind-to-socket option.
- A few MPI_THREAD_MULTIPLE fixes in the shared memory BTL.
- Upgrade the GNU Autotools used to bootstrap the 1.5/1.6 series to
  all the latest versions at the time of this release.
- Categorically state in the README that if you're having a problem
  with Open MPI with the Linux Intel 12.1 compilers, *upgrade your
  Intel Compiler Suite to the latest patch version*, and the problems
  will go away. :-)
- Fix the --without-memory-manager configure option.
- Fixes for Totalview/DDT MPI-capable debuggers.
- Update rsh/ssh support to properly handle the Mac OS X library path
  (i.e., DYLD_LIBRARY_PATH).
- Make warning about shared memory backing files on a networked file
  system be optional (i.e., can be disabled via MCA parameter).
- Several fixes to processor and memory affinity.
- Various shared memory infrastructure improvements.
- Various checkpoint/restart fixes.
- Fix MPI_IN_PLACE (and other MPI sentinel values) on OS X.  Thanks to
  Dave Goodell for providing the magic OS X gcc linker flags necessary.
- Various man page corrections and typo fixes.  Thanks to Fujitsu for
  the patch.
- Updated wrapper compiler man pages to list the various --showme
  options that are available.
- Add PMI direct-launch support (e.g., "srun mpi_application" under
  SLURM).
- Correctly compute the aligned address when packing the
  datatype description. Thanks to Fujitsu for the patch.
- Fix MPI obscure corner case handling in packing MPI datatypes.
  Thanks to Fujitsu for providing the patch.
- Workaround an Intel compiler v12.1.0 2011.6.233 vector optimization
  bug.
- Output the MPI API in ompi_info output.
- Major VT update to 5.12.1.4.
- Rankfile 'P'hysical mapping is no longer available.
- Upgrade embedded Hardware Locality (hwloc) v1.3.2, plus some
  post-1.3.2-release bug fixes.  All processor and memory binding is
  now done through hwloc.  Woo hoo!  Note that this fixes core binding
  on AMD Opteron 6200 and 4200 series-based systems (sometimes known
  as Interlagos, Valencia, or other Bulldozer-based chips).
- New MCA parameters to control process-wide memory binding policy:
  hwloc_base_mem_alloc_policy, hwloc_base_mem_bind_failure_action (see
  ompi_info --param hwloc base).
- Removed direct support for libnuma.  Libnuma support may now be
  picked up through hwloc.
- Added MPI_IN_PLACE support to MPI_EXSCAN.
- Various fixes for building on Windows, including MinGW support.
- Removed support for the OpenFabrics IBCM connection manager.
- Updated Chelsio T4 and Intel NE OpenFabrics default buffer settings.
- Increased the default RDMA CM timeout to 30 seconds.
- Issue a warning if both btl_tcp_if_include and btl_tcp_if_exclude
  are specified.
- Many fixes to the Mellanox MXM transport.