This is a brief guide to get you started on using the oscar cluster.

- There are 8 nodes (excluding the main server) and are called
oscarnode[1-8].oscardomain. Your username and password on all this
machines are same.

- You can, if you want to, ssh to these machines by using the above host
names. However to execute any command you can use the C3 power tools.

- For example,
    to execute "ls" on all machines, type:
        cexec ls -l
    to execute "ls" on only machines 2,3,4 and 8:
        cexec :2-4, 8 ls -l
 
More detailed information is in the OSCAR user guide.

- LAM MPI is the default MPI environment. You can change it by using the
"switcher" command. LAM seems to be the best option right now. You can read more about LAM here
- A file named lam_hostfile should be present in your user account. Use this to boot your
    MPI environment: lamboot lam_hostfile -v
    Halt the environment by: lamhalt -v
- mpicc, mpiCC should be used to compile your programs. They do not
require the environment to be booted up.

- mpiexec should be used to execute the program on the cluster

- For advanced scheduling, look under the Portable Batch Scheduling (PBS)
section of the pdf file.