[mpich-discuss] MPI point-to-point question

[Boisvert, Sebastien]

OK !

And, would there be a performance difference if I use MPI_Improbe and MPI_Mrecv
(with MPI_THREAD_FUNNELED) ?

> ________________________________________
> From: Rajeev Thakur [thakur at mcs.anl.gov]
> Sent: Wednesday, August 20, 2014 10:13 PM
> To: discuss at mpich.org
> Subject: Re: [mpich-discuss] MPI point-to-point question
> Just use MPI_ANY_SOURCE and MPI_ANY_TAG in the MPI_Iprobe, so it will return the first available message.
> Rajeev
> On Aug 20, 2014, at 8:37 PM, "Boisvert, Sebastien" <boisvert at anl.gov> wrote:
> > Hi,
> >
> > When using MPI_Isend + MPI_Test + MPI_Iprobe + MPI_Recv (MPI point-to-point),
> > is there a way to give a hint to MPICH to tell it that the order of messages between each
> > pair of MPI ranks does not need to be enforced ?
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