Design, implementation, and performance evaluation of MPI 3.0 on portals 4.0
Amin Hassani, Anthony Skjellum, Ron Brightwell, Brian W. Barrett · 2013
The latest version of the Portals interconnect programming interface contains several improvements intended for MPI point-to-point and one-sided communication operations, including new functionality defined in MPI-3. This paper discusses the rationale for these improvements to Portals and describes how they can be used in an MPI implementation. We provide preliminary micro-benchmark performance results using a reference implementation of Portals over InfiniBand Verbs and the Open MPI implementation.