On 06/04/2013 03:23 AM, Jeff Squyres (jsquyres) wrote:
On Jun 3, 2013, at 5:06 AM, Paul Kapinos <kapi...@rz.rwth-aachen.de> wrote:
It is more or less well-known that MPI_THREAD_MULTIPLE disable the OpenFabric /
InfiniBand networking in Open MPI:
http://www.open-mpi.org/faq/?category=supported-systems#thread-support
http://www.open-mpi.org/community/lists/users/2010/03/12345.php
Yes, this is true -- MPI_THREAD_MULITPLE support is fairly incomplete in Open
MPI.
One would hope a simple MPI_Barrier call would work though...
My home linux system is nothing sophisticated. Just a quad core I-5 on
a Intel DP55WB motherboard and Ubuntu Linux. No fancy interconnects.
Walter
