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Subject: Re: [OMPI users] singleton spawn regression
From: Ralph Castain (rhc_at_[hidden])
Date: 2012-10-17 14:14:49


Huh - that is totally weird. I'll take a look

On Oct 17, 2012, at 9:02 AM, Brian Budge <brian.budge_at_[hidden]> wrote:

> Hi Ralph -
>
> No, it appears that 1.6.3rc1 does not work either.
>
> Thanks
> Brian
>
> On Wed, Oct 17, 2012 at 8:31 AM, Ralph Castain <rhc_at_[hidden]> wrote:
>> Can you please check the 1.6.3 release candidate and see if it is there? I suspect that the issue here is that the patch didn't get into the 1.6.2 official release, and the version numbers in the repo didn't immediately get updated - so the nightly build was still labeled as 1.6.2 even after the official release came out.
>>
>>
>> On Oct 16, 2012, at 10:46 AM, Brian Budge <brian.budge_at_[hidden]> wrote:
>>
>>> Hi all -
>>>
>>> There was a bug in version 1.6.1 that caused singleton spawn not to
>>> work correctly with multi-machine configurations. I verified that a
>>> nightly build of 1.6.2 fixed this issue, in particular 1.6.2a1r27234
>>> works. I just grabbed the 1.6.2 official release, and it appears that
>>> somehow the fix has been removed.
>>>
>>> I am testing with the simple_spawn.c example. Instead of passing
>>> MPI_INFO_NULL to the spawn call, I create an Info object, and set the
>>> "add-host" to a comma delimited list of nodes. When I run this in the
>>> nightly mentioned above, without mpirun, everything works as expected
>>> (the nodes I list in the "add-host" are in the output text of the
>>> program). When I run the same code with the released 1.6.2, I get the
>>> old behavior from 1.6.1 where all slaves run on localhost.
>>>
>>> Thanks,
>>> Brian
>>> _______________________________________________
>>> users mailing list
>>> users_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>>
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