openmpi/INSTALL

Copyright (c) 2004-2005 The Trustees of Indiana University.
                        All rights reserved.
Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
                        All rights reserved.
Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
                        University of Stuttgart.  All rights reserved.
$COPYRIGHT$

Additional copyrights may follow

$HEADER$

If you have checked out a DEVELOPER'S COPY of Open MPI (i.e., you
checked out from subversion), you must first run:

shell$ ./autogen.sh 

You will need very recent versions of GNU Autoconf, Automake, and
Libtool.  If autogen.sh fails, read the HACKING file.

Everyone must run "configure" and "make" to build Open MPI.  Execute
the following commands to install the Open MPI system from within
the directory at the top of the tree:

shell$ ./configure --prefix=/where/to/install
shell$ make all install

--> NOTE:                    
          If a user is going to do a parallel build, they should just use
          make -j 8 install

          make -j 8 all install
          it will build and only install the /include directory.
          if you re-run "make -j 8 all install" again, then all the proper files and
          directories will be installed.

To compile an MPI program:

C programs:   mpicc your-code.c
C++ programs: mpiCC your-code.cc    or
              mpic++ your-code.cc   (for case-insensitive filesystems)
F77 programs: mpif77 your-code.f

We do not yet have a proper mpirun program.  There is a script in
src/mpirun/mpirun that uses ssh to start individual MPI processes
(along with a bunch of associated environment variables); it will
eventually be replaced with a real mpirun command.