The "#pragma omp for" does a barrier at the end of the block (since we did not specify "nowait"), so I don't think it is required. _______________________________________________ Douglas Miller BlueGene Messaging Development IBM Corp., Rochester, MN USA Bldg 030-2 A401 [email protected] Douglas Miller/Rochester/IBM Jim Dinan <[email protected] v> To Sent by: [email protected], mpi3-hybridpm-bou cc [email protected] rum.org Subject Re: [Mpi3-hybridpm] Ticket 217 proposal document updated 01/30/2012 12:38 PM Please respond to mpi3-hybridpm@lis ts.mpi-forum.org Hi Doug, In Example 12.3, the "#omp barrier" should be required to ensure that all threads have finished updating sendbuf and reading recvbuf before the Allreduce. ~Jim. On 1/30/12 8:27 AM, Douglas Miller wrote:
I've updated the PDF in Ticket 217 based on latest comments. Please review the text and send me comments. This is an attempt to make the concept easier to follow by describing in terms of a "team epoch".
thanks, _______________________________________________ Douglas Miller BlueGene Messaging Development IBM Corp., Rochester, MN USA Bldg 030-2 A401 [email protected] Douglas Miller/Rochester/IBM
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