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

[Pavan Balaji]

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

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji