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Subject: Re: [OMPI devel] regression with derived datatypes
From: Gilles Gouaillardet (gilles.gouaillardet_at_[hidden])
Date: 2014-05-08 05:57:53


Nathan and George,

here are the (compressed) traces

Gilles

On 2014/05/08 16:43, Hjelm, Nathan T wrote:
> If you can get me the backtrace from one of the crash core files I would like to see what is going on there.
>
> -Nathan
> ________________________________________
> From: devel [devel-bounces_at_[hidden]] on behalf of Gilles Gouaillardet [gilles.gouaillardet_at_[hidden]]
> Sent: Thursday, May 08, 2014 1:32 AM
> To: Open MPI Developers
> Subject: Re: [OMPI devel] regression with derived datatypes
>
> George,
>
> you do not need any hardware, just download MPSS from Intel and install it.
> make sure the mic kernel module is loaded *and* you can read/write to the
> newly created /dev/mic/* devices.
>
> /* i am now running this on a virtual machine with no MIC whatsoever */
>
> i was able to improve things a bit for the new attached test case
> /* send MPI_PACKED / recv newtype */
> with the attached unpack.patch.
>
> it has to be applied on r31678 (aka the latest checkout of the v1.8 branch)
>
> with this patch (zero regression test so far, it might solve one problem
> but break anything else !)
>
> mpirun -np 2 -host localhost --mca btl,scif,vader ./test_scif2
> works fine :-)
>
> but
>
> mpirun -np 2 -host localhost --mca btl scif,vader ./test_scif2
> still crashes (and it did not crash before r31496)
>
> i will provide the output you requested shortly
>
> Cheers,
>
> Gilles
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