THESE INSTRUCTIONS MUST BE FOLLOWED TO THE LETTER.


1. Download and following instructions to install mpich-3.2.

Install MPI in your home directory:  /home/hadoopuser/mpich-install


2. Set Path to include /home/hadoopuser/mpich-install/bin:

   export PATH=/home/hadoopuser/mpich-install/bin:$PATH


3. Create a directory /home/hadoopuser/mpi

All your mpi programs and files MUST be inside this directory.


4. Create a file /home/hadoopuser/mpi/machinefile  
   with the following exact contents:

10.1.0.98:2
10.1.0.1:4
10.1.0.3:2
10.1.0.5:4
10.1.0.9:4
10.1.0.10:4
10.1.0.11:4


(this file states how many processes are to be executed on each machine. if
you're doing a standalone installation, such a file is not necessary).