[mvapich-discuss] problem with intra-node communications

[Jonathan Perkins]

On Thu, May 07, 2009 at 06:01:48PM +0600, Maya Khaliullina wrote:
> Hello,
> When we run any MPI program on 4, 6 or 8 processes using intra-node
> communications only, job hangs at end stage (we believe it occurs during
> MPI_Finalize). But if we use mvapich2-0.98 or Intel MPI 3.1.26 it works
> fine.
> Have any idea about this problem?

Have you tried mvapich2-1.2p1?  This contains a patch that may resolve
your issue.  Please let us know if it does.

> We compiled mvapich2-1.2 with following parameters:
> ./configure --prefix=/gpfs/bos/mvapich2-1.2 --enable-romio
> --disable-debuginfo --enable-sharedlibs=gcc \
>   --enable-base-cache --with-rdma=gen2 --with-thread-package=pthreads
> CC=icc
> CFLAGS=-O3
> Parameters of our HPC cluster:
> Node: 2xQuad Core Intel Xeon 2.33 GHz
> O/S: RHEL4.5
> File System: GPFS
> 
> Thanks,
> Maya

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-- 
Jonathan Perkins
http://www.cse.ohio-state.edu/~perkinjo
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