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Subject: Re: [OMPI users] opal_mutex_lock(): Resource deadlock avoided
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2010-05-07 09:21:22


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:

> Hi!
>
> 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
>
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-- 
Jeff Squyres
jsquyres_at_[hidden]
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