Several things: - In 1.8.x only shared memory windows work with multiple threads. This problem will be fixed in the master branch soon. A back-port to 1.8 is unlikely given the magnitude of the changes.
- I highly recommend using the MPI-3 call MPI_Win_allocate over MPI_Win_create. The new call will give better performance once we roll out better one-sided support in master over the next month or so. -Nathan On Wed, Dec 10, 2014 at 02:00:43PM -0800, Christopher O'Grady wrote: > > Hi, > > I see what looks like a bug in openmpi involving the > MPI_THREAD_MULTIPLE. When we call MPI_Init_thread with this argument, > this 61-line example hangs: > > http://www.slac.stanford.edu/~cpo/mpi_one_sided.cc > > There are some commented out lines in that file that we can use > to workaround the problem. > > We use openmpi 1.8.1 configured like this: > > ./configure --prefix=%{instdir} \ > --with-lsf=no \ > --enable-mpi-thread-multiple > > I looked through the mailing list archives, and saw some posts that > looked similar for version 1.7.1. Is this still a known issue for > 1.8.1? > > Thanks for any thoughts... > > chris > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2014/12/25956.php
pgpdFS5ZsutYT.pgp
Description: PGP signature
