[mpich-discuss] [Fwd: Re: installing and using MPI_PUBLISH_NAME and MPI_LOOKUP_NAME with mpich2]

Bernard Secher - SFME/LGLS bernard.secher at cea.fr
Wed Jul 6 03:25:09 CDT 2011


So, how do you solve my use case ?

Pavan Balaji a écrit :
>
> On 07/06/2011 02:02 AM, Bernard Secher - SFME/LGLS wrote:
>> Because I don't know what is the first executable which publishes the
>> name, and what is the second executable which looks up the name.
>> The first arrived, publishes the name.
>
> Is your expectation that the second process that tries to publish the 
> name returns an error? If yes, then that's an incorrect expectation. 
> This is undefined behavior as per the MPI standard and the 
> implementation can do anything, including hang, in such cases.
>
>  -- Pavan
>


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