Environmental Inquiry Functions

Environmental inquiry functions include routines for starting up and shutting down, error-handling routines, and timers.

Few MPI routines may be called before MPI_Init or after MPI_Finalize. Examples include MPI_Initialized and MPI_Version. MPI_Finalize may be called only if there are no outstanding communications involving that process.

The set of errors handled by MPI is dependent upon the implementation. See Appendix B, Troubleshooting for tables listing the Sun MPI 4.0 error classes.