[Mpi3-rma] nested locks

Rajeev Thakur thakur at mcs.anl.gov
Mon Aug 19 14:44:41 CDT 2013

Did we make any change in MPI 3.0 to allow nesting of MPI_Win_lock calls? For example,

Win_lock(rank 1)
    Win_lock(rank 2)
    Win_unlock(rank 2)
Win_unlock(rank 1)

I can't find the text we added or deleted to allow this. 

But I do see text that disallows this:
pg 437, ln 28: "Distinct access epochs for win at the same process must be disjoint."


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