you mean lock at those ranks, not by those ranks?  those aren't conflicting so i don't see the issue.  maybe i am a dolt though.

jeff

On Mon, Aug 19, 2013 at 2:44 PM, Rajeev Thakur <thakur@mcs.anl.gov> wrote:

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


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--
Jeff Hammond
jeff.science@gmail.com

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