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Subject: Re: [OMPI users] Invalid Info object in MPI_Comm_spawn_multiple
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-08-17 14:12:27


Are you initializing your MPI_Info object? Remember that -- at a
minimum -- you need to call MPI_INFO_CREATE on an MPI_Info object (or
pass MPI_INFO_NULL).

On Aug 17, 2009, at 11:28 AM, Federico Golfrè Andreasi wrote:

> Hi!
>
> I have a little code that uses the MPI_Comm_spawn_multiple,
> I've used it without any problems with the MPICH2 and MVAPICH2
> implementation of MPI-2,
> but with the Open MPI v1.3.3 it throws this error:
>
> *** An error occurred in MPI_Comm_spawn_multiple
> *** on communicator MPI_COMM_WORLD
> *** MPI_ERR_INFO: invalid info object
> *** MPI_ERRORS_ARE_FATAL (your MPI job will now abort)
>
> and I've seen on http://www.mpi-forum.org/docs/mpi21-report-bw/node204.htm#Node204
> that the MPI_Info object keys depend on the implementation.
>
> Does the OpenMPI have a different implementation in respect of the
> MPICH/MVAPICH?
> What I have to change in order to make it run?
> Or the problem is elsewhere located?
>
> Thank you very much,
> Federico Golfrè Andreasi
>
>
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-- 
Jeff Squyres
jsquyres_at_[hidden]