Appendix BA Brief Introduction to MPI

B.1 CONCEPTS

B.2 GETTING STARTED

B.3 BASIC POINT-TO-POINT MESSAGE PASSING

B.4 COLLECTIVE OPERATIONS

B.5 ADVANCED POINT-TO-POINT MESSAGE PASSING

B.6 MPI AND FORTRAN

B.7 CONCLUSION

MPI (Message Passing Interface) is the standard programming environment for distributed-memory parallel computers. The central construct in MPI is message passing: One process1 packages information into a message and sends that message to another process. MPI, however, includes far more than simple message passing. MPI includes routines to synchronize processes, sum numbers distributed among a collection of processes, scatter data across a collection of processes, and much more.

1 The UEs are processes in MPI.

MPI was created ...

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