Running examples

1. (Optional) Build and run a simple test program:


    % cd examples/basic 
    % make cpi 
    % ../../bin/mpirun -np 4 cpi 

At this point you have run an MPI program on your system. If you have trouble, see Section In Case of Trouble .


2. (Optional) Put the distribution through its complete acceptance test (See Section Thorough Testing for how to do this).


3. (Optional) If you wish to install mpich in a public place so that others may use it, use


    % make install 

to install mpich into the directory specified by the --prefix option to configure. Installation will consist of an include, lib, bin, sbin, www, and man directories and a small examples directory. Should you wish to remove the installation, you can run the script sbin/mpiuninstall.


4. (Optional) At this point you can announce to your users how to compile and run MPI programs, using the installation you have just built in /usr/local/mpich-1.2.5/ (or wherever you have installed it). See Section Programming Tools for commands they can use. They can also copy the Makefile in /usr/local/mpich-1.2.5/examples and adapt it for their own use.