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On Tue, Sep 07, 2010 at 11:03:48AM -0600, Tom Tromey wrote:This sounds like the "barrier" feature in HPD. A patch for this would be interesting, too.
I am curious though -- what is it useful for?Think about this in terms of, for example, automatically parallelized OpenMP code. If you have a parallel region, it's handy to examine all threads at that point. I don't know if this would work better in UPC than it would in OpenMP though; you can have code executed in only some threads...
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