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.
Add MPI to your path
% set path = ( $path /usr/local/mpi/bin )
for the csh and tcsh shells, or
% export path=$path:/usr/local/mpi/bin
for sh , ksh , and bash shells.
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
using the source code from /usr/local/mpi/examples .
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.
MPICH2 version 1.0
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 .
/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
MPI-specific suggestions and bug reports should be sent to [email protected] .