[ofiwg] A question on FI_DELIVERY_COMPLETE

Paul Grun grun at cray.com
Wed Oct 21 09:33:28 PDT 2015

Here's my understanding of how FI_DELIVERY_COMPLETE works on the *responder* end:  If you are doing an RMA operation, and the requester uses CQ_REMOTE_DATA to signal the end of the transfer to the responder, and the responder has FI_DELIVERY_COMPLETE set, then the responder won't get a completion event until the data is actually visible to the responder.

I ask because the man pages imply that FI_DELIVERY_COMPLETE, which is an operation flag, applies only to the requester side.  But it is much less important to notify the requester that data is visible to the responder, than it is to notify the responder itself.


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