[mpich-discuss] Race condition in MPI3 (Fortran, shared memory)

[Halim Amer]

Win_sync can only be used within passive target epochs. You could 
replace the win_fences with win_locks.

--Halim

On 4/13/16 11:28 AM, C.Friedrich wrote:
> Thanks for the suggestion! Adding MPI_WIN_SYNC in this way:
>       do i = 1,10000
>         call mpe_win_fence(a,0,Nwin,err)
>         a = a + 1
>         call mpi_win_sync(Nwin,err)
>         call mpe_win_fence(a,0,Nwin,err)
>       enddo
> does not work. The compiled executable either issues the error
> Fatal error in MPI_Win_sync: Wrong synchronization of RMA calls , error
> stack:
> MPI_Win_sync(115)..: MPI_Win_sync(win=0xa0000000) failed
> MPID_Win_sync(1805): Wrong synchronization of RMA calls
> or simply dies (without writing the numbers). Perhaps I use it
> incorrectly...
>
> Christoph
>
>
>
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