Programming with the Message Passing Interface (MPI)
Presented by NCSA Consulting Services
4/15/97
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Table of ContentsProgramming with the Message Passing Interface (MPI) Outline Types of Parallel Computing Communicating With Other Processes Cooperative Operations One-sided Operations One-Sided Operations Class Example What is MPI? What is MPI? Motivation for a New Design Motivation for a New Design Motivation for a New Design The MPI Process The MPI Process Who Designed MPI? Features of MPI Features of MPI Features of MPI Features not in MPI Features not in MPI To MPI or not to MPI? To MPI or not to MPI? Why learn MPI? Getting started Writing MPI programs Commentary Compilation Commands Running MPI programs Finding out about the environment A Simple Program (F77) A Simple Program (F77) A Simple Program (C) A Simple Program (C) Sending and Receiving Messages MPI Basic Send/Receive MPI Basic Collective Operation Getting information about a message Simple Fortran example Simple Fortran Example Simple Fortran Example Six Function MPI A taste of things to come Broadcast and Reduction pi.f pi.f pi.f Exercise - PI Exercise - Ring Topologies Cartesian Topologies Defining a Cartesian Topology Defining a Cartesian Topology Finding neighbors Finding Neighbors Who am I? Partitioning Other Topology Routines Why are these routines in MPI? Why are these routines in MPI? The Periods Argument Periodic Grids Nonperiodic Grids Collective Communications in MPI Collective Communications Synchronization Available Collective Patterns Available Collective Computation Patterns MPI Collective Routines Built-in Collective Computation Operations Buffering Issues Better Buffering Better Buffering Blocking and Non-Blocking Communication Blocking and Non-Blocking Communication Some Solutions to the “Unsafe” Problem Some Solutions to the “Unsafe” Problem MPI's Non-Blocking Operations Multiple completions More on nonblocking communication More on nonblocking communication More on nonblocking communication Communication Modes Communication Modes Buffered Send Buffered Send Buffered Send Other Point-to-Point Features Datatypes and Heterogeneity Datatypes in MPI Datatypes in MPI Basic Datatypes (Fortran) Basic Datatypes (C) Further References on MPI Further References on MPI |
Author: John Towns
Email: hpc-training@ncsa.uiuc.edu |
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Last modified: April 14, 1997