[Mpi3-rma] MPI-3 UNIFIED model clarification
Pavan Balaji
balaji at mcs.anl.gov
Tue Jul 30 14:43:50 CDT 2013
On 07/30/2013 10:28 AM, Jim Dinan wrote:
> I believe this is adequately specified on pg 436, line 37. P1 will
> *eventually* see the new value for "a" without any additional
> synchronization operations, but neither the flush by P0 nor the Recv by
> P1 guarantee that P1 will see the new value immediately.
This is what I said is the disagreement in the WG. I can pull up the
old email chain if needed, but I think others can too. One side was
arguing that there's no such guarantee and you need to do a WIN_SYNC to
see the value. The other side was arguing that the WIN_SYNC should not
be needed; FLUSH + SEND on the origin should be enough.
--
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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