Yeah, I figured out why XPMEM is failing on SGI UV but have not figured
out a fix. If possible can we remove the check for sn/xpmem.h in the
ompi/mca/btl/vader/configure.m4. I hopefully will have a better fix for
1.8.5.

-Nathan

On Fri, Dec 19, 2014 at 11:59:29PM -0800, Paul Hargrove wrote:
>    Sorry to rain on the parade, but SGI UV is still broken by default.
>    I reported this as present in 1.8.4rc5 and Nathan had claimed to be
>    working on it.
>    A reminder that all it takes is a 1-line change in
>    ompi/mca/btl/vader/configure.m4 to not search for sn/xpmem.h
>    -Paul
>    On Fri, Dec 19, 2014 at 7:26 PM, Ralph Castain <r...@open-mpi.org> wrote:
> 
>      The Open MPI Team, representing a consortium of research, academic, and
>      industry partners, is pleased to announce the release of Open MPI
>      version 1.8.4.
> 
>      v1.8.4 is a bug fix release.  All users are encouraged to upgrade to
>      v1.8.4 when possible.
> 
>      Version 1.8.4 can be downloaded from the main Open MPI web site or any
>      of its mirrors  (mirrors will be updating shortly).
> 
>      Here is a list of changes in v1.8.4 as compared to v1.8.3:
> 
>      - Fix MPI_SIZEOF; now available in mpif.h for modern Fortran compilers
>        (see README for more details).  Also fixed various compiler/linker
>        errors.
>      - Fixed inadvertant Fortran ABI break between v1.8.1 and v1.8.2 in the
>        mpi interface module when compiled with gfortran >= v4.9.
>      - Fix various MPI_THREAD_MULTIPLE issues in the TCP BTL.
>      - mpirun no longer requires the --hetero-nodes switch; it will
>        automatically detect when running in heterogeneous scenarios.
>      - Update LSF support, to include revamped affinity functionality.
>      - Update embedded hwloc to v1.9.1.
>      - Fixed max registerable memory computation in the openib BTL.
>      - Updated error message when debuggers are unable to find various
>        symbols/types to be more clear.  Thanks to Dave Love for raising the
>        issue.
>      - Added proper support for LSF and PBS/Torque libraries in static
>      builds.
>      - Rankfiles now support physical processor IDs.
>      - Fixed potential hang in MPI_ABORT.
>      - Fixed problems with the PSM MTL and "re-connect" scenarios, such as
>        MPI_INTERCOMM_CREATE.
>      - Fix MPI_IREDUCE_SCATTER with a single process.
>      - Fix (rare) race condition in stdout/stderr funneling to mpirun where
>        some trailing output could get lost when a process terminated.
>      - Removed inadvertent change that set --enable-mpi-thread-multiple "on"
>        by default, thus impacting performance for non-threaded apps.
>      - Significantly reduced startup time by optimizing internal hash table
>        implementation.
>      - Fixed OS X linking with the Fortran mpi module when used with
>        gfortran >= 4.9.  Thanks to Github user yafshar for raising the
>        issue.
>      - Fixed memory leak on Cygwin platforms.  Thanks for Marco Atzeri for
>        reporting the issue.
>      - Fixed seg fault in neighborhood collectives when the degree of the
>        topology is higher than the communicator size.  Thanks to Lisandro
>        Dalcin for reporting the issue.
>      - Fixed segfault in neighborhood collectives under certain use-cases.
>      - Fixed various issues regarding Solaris support.  Thanks to Siegmar
>        Gross for patiently identifying all the issues.
>      - Fixed PMI configure tests for certain Slurm installation patterns.
>      - Fixed param registration issue in Java bindings.  Thanks to Takahiro
>        Kawashima and Siegmar Gross for identifying the issue.
>      - Several man page fixes.
>      - Silence several warnings and close some memory leaks (more remain,
>        but it's better than it was).
>      - Re-enabled the use of CMA and knem in the shared memory BTL.
>      - Updated mpirun manpage to correctly explain new map/rank/binding
>      options.
>      - Fixed MPI_IALLGATHER problem with intercommunicators.  Thanks for
>        Takahiro Kawashima for the patch.
>      - Numerous updates and performance improvements to OpenSHMEM.
>      - Turned off message coalescing in the openib BTL until a proper fix
>        for that capability can be provided (tentatively expected for 1.8.5)
>      - Fix a bug in iof output that dates back to the dinosaurs which would
>        output extra bytes if the system was very heavily loaded
>      - Fix a bug where specifying mca_component_show_load_errors=0 could
>        cause ompi_info to segfault
>      - Updated valgrind suppression file
> 
>      _______________________________________________
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> 
>    --
>    Paul H. Hargrove                          phhargr...@lbl.gov
>    Computer Languages & Systems Software (CLaSS) Group
>    Computer Science Department               Tel: +1-510-495-2352
>    Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900

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