In order to access the cluster, a user should contact PCN at staff@physics.purdue.edu, and request that their account be activated on the Amdahl cluster. The account will have the same username and password as regular PCN accounts, such as on bohr, curie, or heisenberg.
When you account is enabled on amdahl, log into the system with ssh. A new user will quickly notice that their home directory is empty! As the cluster systems are connected to a private network, it has home directories that are separate from those that exist for your usual account.
Now that you are logged in, you need to prepare your program for compilation and execution. If, for example, your program is in your bohr home directory, you can copy it to your cluster home directory easily:
cp /Home/username/program.f /home/username
This will copy the file program.f from your PCN home directory (Available on the master node as /Home/username, with a capital H), to the cluster home directory (/home/username). You could repeat similar commands to copy program.c, program.f90, testdata.dat, and inputdata.dat into your cluster home directory.