Re: [OMPI users] Forcing MPI processes to end

[Adam Sylvester]

Thanks - that's exactly what I needed!  Works as advertised. :o)

On Thu, Nov 16, 2017 at 1:27 PM, Aurelien Bouteiller 
wrote:

> Adam. Your MPI program is incorrect. You need to replace the finalize on
> the process that found the error with MPIAbort
>
> On Nov 16, 2017 10:38, "Adam Sylvester"  wrote:
>
>> I'm using Open MPI 2.1.0 for this but I'm not sure if this is more of an
>> Open MPI-specific implementation question or what the MPI standard
>> guarantees.
>>
>> I have an application which runs across multiple ranks, eventually
>> reaching an MPI_Gather() call.  Along the way, if one of the ranks
>> encounters an error, it will call report the error to a log, call
>> MPI_Finalize(), and exit with a non-zero return code.  If this happens
>> prior to the other ranks making it to the gather, it seems like mpirun
>> notices this and the process ends on all ranks.  This is what I want to
>> happen - it's a legitimate error, so all processes should be freed up so
>> the next job can run.  It seems like if the other ranks make it into the
>> MPI_Gather() before the one rank reports an error, the other ranks wait in
>> the MPI_Gather() forever.
>>
>> Is there something simple I can do to guarantee that if any process calls
>> MPI_Finalize(), all my ranks terminate?
>>
>> Thanks.
>> -Adam
>>
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>> users mailing list
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>> https://lists.open-mpi.org/mailman/listinfo/users
>>
>
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Re: [OMPI users] Forcing MPI processes to end

[Aurelien Bouteiller]

Adam. Your MPI program is incorrect. You need to replace the finalize on
the process that found the error with MPIAbort

On Nov 16, 2017 10:38, "Adam Sylvester"  wrote:

> I'm using Open MPI 2.1.0 for this but I'm not sure if this is more of an
> Open MPI-specific implementation question or what the MPI standard
> guarantees.
>
> I have an application which runs across multiple ranks, eventually
> reaching an MPI_Gather() call.  Along the way, if one of the ranks
> encounters an error, it will call report the error to a log, call
> MPI_Finalize(), and exit with a non-zero return code.  If this happens
> prior to the other ranks making it to the gather, it seems like mpirun
> notices this and the process ends on all ranks.  This is what I want to
> happen - it's a legitimate error, so all processes should be freed up so
> the next job can run.  It seems like if the other ranks make it into the
> MPI_Gather() before the one rank reports an error, the other ranks wait in
> the MPI_Gather() forever.
>
> Is there something simple I can do to guarantee that if any process calls
> MPI_Finalize(), all my ranks terminate?
>
> Thanks.
> -Adam
>
> ___
> users mailing list
> users@lists.open-mpi.org
> https://lists.open-mpi.org/mailman/listinfo/users
>
___
users mailing list
users@lists.open-mpi.org
https://lists.open-mpi.org/mailman/listinfo/users