[mpich-discuss] MPI_Comm_spawn / MPI_Info question

[Christoph Sprenger]

Thanks for that Pavan.
Just installed and upgraded and super happy how smooth that went.




On 16/09/12 17:19, Pavan Balaji wrote:
>
> 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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>