[MacPorts] #39438: openmpi @1.7.1 +threads +gcc47 creates code that hangs

[MacPorts]

#39438: openmpi @1.7.1 +threads +gcc47 creates code that hangs
-------------------------------------+--------------------------------
 Reporter:  hans.ekkehard.plesser@…  |      Owner:  macports-tickets@…
     Type:  defect                   |     Status:  new
 Priority:  Normal                   |  Milestone:
Component:  ports                    |    Version:  2.1.3
 Keywords:                           |       Port:  openmpi
-------------------------------------+--------------------------------
 The attached MPI hello world program will hang on `MPI_Init_thread()` when
 compiled with `openmpicc` from `openmpi @1.7.1 +threads +gcc47` on OSX
 10.8.4 and invoked with `openmpirun` on more than one process.

 Everything works fine if I do one of the following:
  - use `openmpi @1.6.4 +threads +gcc47`
  - replace `MPI_THREAD_SERIALIZED` by `MPI_THREAD_SINGLE`,  which is
 equivalent to calling `MPI_Init()`.

 The actual compiler invocation and compiler version are
 {{{
 [Macintosh:~/tmp/hw] hep% openmpicc -o hw_mpi hw_mpi.c --showme
 /usr/bin/clang -o hw_mpi hw_mpi.c -I/opt/local/include/openmpi
 -L/opt/local/lib -lmpi

 [Macintosh:~/tmp/hw] hep% /usr/bin/clang --version
 Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM
 3.1svn)
 Target: x86_64-apple-darwin12.4.0
 Thread model: posix
 }}}

 I realized that this is most likely an OpenMPI problem and will report it
 there, too, but I wonder if it makes sense to have 1.7.1 as default on
 MacPorts given this problem.

-- 
Ticket URL: <https://trac.macports.org/ticket/39438>
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