[mpich-discuss] MPI_Comm_spawn / MPI_Info question

[Pavan Balaji]

Can you upgrade to the latest version of mpich2?  1.2.1p1 is too old; it 
uses a different process manager which is not supported anymore.

  -- Pavan

On 09/15/2012 09:23 PM, Christoph Sprenger wrote:
> Hi,
>
> I've been trying to get MPI_Info to work with the Spawn interface, but
> seems like the env vars aren't supplied to the new processes.
> I've been searching the docs and source, but can't find the list of
> hints for mpich2, so i am not sure if "envlist" is the right key for the
> mpd.
> not sure if i missed the obvious. is there an overview somewhere of all
> the reserved keys ( eg envall,... )
>
>
>
> MPI_Info info;
> MPI_Info_create(&info);
> MPI_Info_set(info, "envlist", "CUSTOM_VAR");
>
> ...
> MPI_Comm_spawn(argv[0], &argv[1] , n, info, 0, MPI_COMM_WORLD,
> &intracomm, MPI_ERRCODES_IGNORE);
>
>
> i currently use mpich2-1.2.1
>
>
> Cheers,
> Christoph
>
>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji