Do you use MPI_Wait or MPI_Waitall functions in your code? Because if you
achieve to non-blocking sending in your code, you should wait for
non-blocking sendig to complete.
All the best,
2009/9/26 guosong <guosong1079_at_[hidden]>
> Hi all,
> I am wondering if there is an flush()-like function in MPI. I saw
> the output of my program. One sent something but some other process did not
> receive it, just sitting there waiting. I used MPI_Isend for sending and
> MPI_Recv for receiving. Is it possible the message was lost or the
> message was not flushed out and was still in the I/O buffer. Thanks.
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