On Thu, Feb 10, 2022 at 9:17 AM Medane TCHAKOROM <
[email protected]> wrote:
> Hello ,
>
> Sorry if this question does not belong to this mailling list, i'am using
> Petsc , but with some
>
> MPI parts code, when dealing with communication.
>
> If a make two consecutive MPI_Isend requests, and if the destination
> processor has not yet receive the message inbetween the two calls, will the
> buffer be updated ? I mean if I send message "1" for the first request,
> then send "0" as the second message. Will the receiver receive "0" as
> message ? I not, how can I do to update the message ?
>
I believe that MPI guarantees in-order message delivery from a source to a
target, so if you send 1 before 0, the receiver
should get them in that order. However, someone here should know for sure.
Thanks,
Matt
> Thanks
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
