[mpich-discuss] MPI_Send and recv

Pavan Balaji balaji at mcs.anl.gov
Tue Jul 2 17:19:06 CDT 2013

On 07/02/2013 05:18 PM, Sufeng Niu wrote:
> Thanks a lot, that is most confusing part for me in MPI. I would like to
> clear this type of problems.
> So the blocking begins to send message to itself, but there is no
> receive posted. Thus, the MPI block it. Am I right here?


> Thus, I need a nonblocking receive to wait the message here. Can I use
> blocking receive?

If you use blocking receive, you'll block in the receive; how will you 
reach the send?

  -- Pavan

Pavan Balaji

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