Hi Wesley, Suppose my server-client connection is setup using MPI_Comm_accept/MPI_Comm_connect. Now one of the clients dies. If the server sends a non-blocking message to the dead client by MPI_Isend, will MPI_Wait guaranteed to return Error code? Thanks, Hirak

You will only receive the notification if you use a communicating call. That call doesn't do any communication so it won't return the error.

On Oct 9, 2014, at 11:37 AM, Roy, Hirak <Hirak_Roy at mentor.com<https://lists.mpich.org/mailman/listinfo/discuss>> wrote:

Hi Pavan and Wesley,

Thanks Pavan for the information.

Wesley,

If I try MPI_Comm_remote_size periodically, then should I get Error-code, when the client on the other side of the intercom is killed ? ( I have already used MPI_ERRORS_RETURN).

Thanks,

Hirak

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