[mpich-discuss] One-sided communication: MPI_Win_lock inside MPI_Win_fence

[Ziaul Haque Olive]

for smaller number of processes like 4, i was getting correct result, but
for 8, it was providing incorrect result.

I tried with and without lock/unlock. without lock/unlock provides correct
result all the time.

Hello,

I am getting incorrect result while using lock/unlock synchronization
> inside fence. the pattern is as follows,
>
>           MPI_Win_fence(win1);
>               ..........
>           MPI_Win_lock(exclusive, win1);
>
>           MPI_Accumulate(MPI_BOR, win1);
>
>           MPI_Win_unlock(win1);
>
>           MPI_Win_fence(win1);
>
> is it invalid to use lock in this way?
>
> Thanks,
> Ziaul.
>
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