Revision as of 20:13, 24 March 2014

How to use Combo

To start to use combo - our group cluster, you need to know something about it. The detail manual could be download from File:Combo Manual.pdf.

How to Log in Combo

Use PuTTY on Windows or Terminal on Linux, login using your account and password. You need to use some specific IP address to access combo.

Only secured (ssh) connections to combo are supported. All insecure methods of connection (rlogin, rsh, telnet) are disabled. You will log on to the master node and you should be in your home directory which is also accessible by compute nodes.

If your local computer system does not support SSH, please install the SSH software [ SSH or Open SSH] before connecting to combo. For Microsoft Windows system, a free client called PuTTY is available here: http://www.chiark.greenend.org.uk/~sgtatham/putty/

First thing you need to do after first login

Change your password, in command line, type

passwd

to change your password. A good password will have a mix of lower- and upper-case characters, numbers, and punctuation marks, and should be at least 6 characters long. Some people like to put a punctuation mark/number in the middle of a word, e.g., Ha&pp6Y.

Second thing you need to do

You need to change ~/.bashrc file so that you can use the apps in shared folder easily, type

cp /share/apps/useful/setup/_.bashrc ~/.bashrc
source ~/.bashrc

to replace bashrc with prepared file. Then use this code to sync .bashrc to all nodes:

for i in compute-0-0 compute-0-2 compute-0-3 compute-0-4 compute-0-5 compute-0-6 compute-0-7 compute-0-8 compute-0-9 compute-0-10 compute-0-11 compute-0-12 compute-0-13 compute-0-14 compute-0-15 compute-0-16 ; do scp ~/.bashrc ${i}:~/ ; done
for i in compute-0-0 compute-0-2 compute-0-3 compute-0-4 compute-0-5 compute-0-6 compute-0-7 compute-0-8 compute-0-9 compute-0-10 compute-0-11 compute-0-12 compute-0-13 compute-0-14 compute-0-15 compute-0-16 ; do ssh ${i} source ~/.bashrc ; done