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Subject: Re: [OMPI users] Bug: non-root processes use receive-type in ompi_coll_tuned_gather_intra_binomial
From: George Bosilca (bosilca_at_[hidden])
Date: 2010-02-17 11:06:38


Thanks Michael. This should be now fixed by commit r22639. I'll push it into the next release.

  Thanks,
    george.

On Feb 17, 2010, at 10:10 , Jeff Squyres wrote:

> Looks like a bug to me. I'll file a ticket.
>
> Thanks for the heads up!
>
> On Feb 17, 2010, at 3:59 AM, Michael Hofmann wrote:
>
>> According to the MPI Standard, "only arguments sendbuf, sendcount,
>> sendtype, root, and comm are significant" on non-root processes in
>> MPI_Gather. However, in routine "ompi_coll_tuned_gather_intra_binomial"
>> the value of "rdtype" ("recvtype" of MPI_Gather) is used. This leads to
>> crash if an uninitialized value is used.
>>
>> The problem exists in version 1.4.1.
>>
>>
>> Michael
>> _______________________________________________
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>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
>
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