Thanks, it looks like I have to do the overlapping myself.
On Tue, Apr 8, 2014 at 5:40 PM, Matthieu Brucher wrote:
> Yes, usually the MPI libraries don't allow that. You can launch
> another thread for the computation, make calls to MPI_Test during that
> time and join at the end.
>
> Cheers,
>
Yes, usually the MPI libraries don't allow that. You can launch
another thread for the computation, make calls to MPI_Test during that
time and join at the end.
Cheers,
2014-04-07 4:12 GMT+01:00 Zehan Cui :
> Hi Matthieu,
>
> Thanks for your suggestion. I tried MPI_Waitall(), but the results are
There is no async progress in Open MPI at this time so this is the
expected behavior. We plan to fix this for the 1.9 release series.
-Nathan Hjelm
HPC-5, LANL
On Mon, Apr 07, 2014 at 11:12:06AM +0800, Zehan Cui wrote:
> Hi Matthieu,
>
> Thanks for your suggestion. I tried MPI_Waitall(), but the
Hi Matthieu,
Thanks for your suggestion. I tried MPI_Waitall(), but the results are
the same. It seems the communication didn't overlap with computation.
Regards,
Zehan
On 4/5/14, Matthieu Brucher wrote:
> Hi,
>
> Try waiting on all gathers at the same time, not one by one (this is
> what non b
Hi,
Try waiting on all gathers at the same time, not one by one (this is
what non blocking collectives are made for!)
Cheers,
Matthieu
2014-04-05 10:35 GMT+01:00 Zehan Cui :
> Hi,
>
> I'm testing the non-blocking collective of OpenMPI-1.8.
>
> I have two nodes with Infiniband to perform allgath
