If I add a loop to make sure I account for all receives on the master, and
correctly set the tags a basic application based on your scheme seems to
work as intended. Can you post a reproducer for you issue instead ?
Thanks,
George.
On Thu, Mar 28, 2019 at 6:52 AM carlos aguni wrote:
> Hi Gil
Hi Gilles.
Thank you for ur reply.
Here's some code:
// MASTER NODE
printf("[%s][RECV] src=%d tag=%d\n", processor_name, src, hashtag);
fflush(stdout);
MPI_Request req;
rs = MPI_Irecv(buf, count, MPI_DOUBLE, src, hashtag, comm, &req);
MPI_Wait(&req, status);
printf("[%s][RECV] src=%d tag=%d OK\n"
Carlos,
can you post a trimmed version of your code that evidences the issue ?
Keep in mind that if you want to write MPI code that is correct with respect to
the standard, you should assume MPI_Send() might block until a matching receive
is posted.
Cheers,
Gilles
Sent from my iPod
> On Ma
Not "MPI_Send from 0"..
MPI_Send from 1 to 0
MPI_Send from 7 to 0
And so on..
On Wed, Mar 27, 2019, 8:43 AM carlos aguni wrote:
> Hi all.
>
> I've an MPI application in which at one moment one rank receives a slice
> of an array from the other nodes.
> Thing is that my application hangs there.
>
