Description

MPI stands for Message Passing Interface. MPI is a specification (like C or Fortran) and there are a number of implementations. The rest of this man page describes the use of the MPICH implementation of MPI.

Getting started

Add MPI to your path

        % set path = ( $path /usr/local/mpi/bin )

        % export path=$path:/usr/local/mpi/bin

Compute pi to a given resolution on 8 processes

        % mpiexec -n 8 /usr/local/mpi/examples/cpi

You can compile and link your own MPI programs with the commands mpicc, mpif77, mpicxx, and mpif90:

        % mpicc -o cpi cpi.c
        % mpif77 -o fpi fpi.f
        % mpicxx -o cxxpi cxxpi.cxx
        % mpif790 -o pi3f90 pi3f90.f90

Documentation

PDF documentation can be found in directory /usr/local/mpi/doc/. These include an installation manual (install.pdf) and a user's manual (usermanual.pdf).

Man pages exist for every MPI subroutine and function. The man pages are also available on the Web at http://www.mcs.anl.gov/mpi/www. Additional on-line information is available at http://www.mcs.anl.gov/mpi, including a hypertext version of the standard, information on other libraries that use MPI, and pointers to other MPI resources.

Version

MPICH2 version 1.0

License

Copyright 2002 University of Chicago. See the file COPYRIGHT for details. The source code is freely available by anonymous ftp from ftp.mcs.anl.gov in pub/mpi/mpich2-beta.tar.gz .

Files

/usr/local/mpi/                 MPI software directory
/usr/local/mpi/COPYRIGHT        Copyright notice
/usr/local/mpi/README           various notes and instructions
/usr/local/mpi/bin/             binaries, including mpiexec and mpicc
/usr/local/mpi/examples         elementary MPI programs
/usr/local/mpi/doc/             documentation
/usr/local/mpi/include/         include files
/usr/local/mpi/lib/             library files

Contact

MPI-specific suggestions and bug reports should be sent to [email protected].

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