Author: Blaise Barney, Lawrence Livermore National Laboratory, UCRL-MI-133316 Table of Contents Abstract What is MPI? LLNL MPI Implementations and Compilers Getting Started Environment Management Routines Exercise 1 Point to Point Communication Routines General Concepts MPI Message Passing Routine Arguments Blocking Message Passing Routines Non-blocking Message Passing Routines Exercise 2 Collecti