SGI Implementation of MPI-2
MPI-2 is the natural successor to MPI-1 in many ways, and includes 3 major features: parallel I/O (which has a NAS legacy) , remote memory operations (alias one-sided I/O), and dynamic process management. SGI supports a subset of MPI-2. It is useful to have a map of what one can and cannot do with MPI-2 on SGI Origin and Altix systems, to be aware of known problems, and to contrast performance on different platforms.
Nelson, Terry↗