Open MPI 1.3.4 is pretty ancient. Can you upgrade to Open MPI 1.6?
On Jun 27, 2012, at 2:59 PM, William Au wrote:
> Hi,
>
> When I ran multiple processes in a single machine, the programs are hanging
> in mpi_allreduce in different points
> during different runs. I am using 1.3.4. When I us
Hi,
When I ran multiple processes in a single machine, the programs are
hanging in mpi_allreduce in different points
during different runs. I am using 1.3.4. When I used different machines
to run the processes, it is OK. Also, when
I recompiled open mpi in debug mode, the problem goes away.
