A Comparison of Three MPI Implementations

摘要

Various implementations of MPI are becoming available as MPI is slowly emerging as the standard API for parallel programming on most platforms. The open source implementations LAM-MPI and MPICH are the most widely used, while commercial implementations are usually tied to special hardware platforms. This paper compares these two open-source MPI-implementations to one of the commercially available implementations, MESH-MPI from MESH-Technologies. We find that the commercial implementation is significantly faster than the open-source implementations, though LAM-MPI does come out on top in some benchmarks.