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."
Rajeev