Based on discussion with some MPI developers, I'm proposing that we introduce a new completion semantic to libfabric. This specifically targets support for the MPI synchronous send operation.
The proposed semantic is: FI_MATCH_COMPLETE* : Indicates that a completion should be generated only after the operation has been placed into the application specified buffer. Operations using this completion semantic are dependent on the application at the target claiming the message or results. As a result, match complete may involve additional provider level acknowledgements or lengthy delays. However, this completion model enables peer applications to synchronize their execution. The associated PR is: https://github.com/ofiwg/libfabric/pull/4303 Note that the PR consolidates and expands the completion levels supported by libfabric into the fi_cq man page. - Sean _______________________________________________ ofiwg mailing list [email protected] https://lists.openfabrics.org/mailman/listinfo/ofiwg
