Could you send a short reproducer code of the problem?
I have not heard of this, but we have not extensively tests the entire OMPI code base with threading support enabled.
On May 6, 2010, at 7:03 AM, Ake Sandgren wrote:
> We have a code that trips on this fairly often. I've seen cases where it
> works but mostly it gets stuck here.
> The actual mpi call is call mpi_file_open(...)
> I'm currently just wondering if there has been other reports on/anyone
> have seen deadlock in mpi-io parts of the code or if this most likely
> caused by our setup.
> openmpi version is 1.4.2 (fails with 1.3.3 too)
> Filesystem used is GPFS
> openmpi built with mpi-threads but without progress-threads
> Ake Sandgren, HPC2N, Umea University, S-90187 Umea, Sweden
> Internet: ake_at_[hidden] Phone: +46 90 7866134 Fax: +46 90 7866126
> Mobile: +46 70 7716134 WWW: http://www.hpc2n.umu.se
> users mailing list
For corporate legal information go to: