Abstract : This paper presents the implementation of MPICH2 over the Nemesis communication subsystem and the evaluation of its shared-memory performance. We describe design issues as well as some of the optimization techniques we employed. We conducted a performance evaluation over shared memory using microbenchmarks as well as application benchmarks. The evaluation shows that MPICH2 Nemesis has very low communication overhead, making it suitable for smaller-grained applications.
Darius Buntinas, Guillaume Mercier, William Gropp. Implementation and Shared-Memory Evaluation of MPICH2 over the Nemesis Communication Subsystem. Euro PVM/MPI 2006, Sep 2006, Bonn, Germany. pp.86-95, ⟨10.1007/11846802_19⟩. ⟨hal-00344339⟩
