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HPC User session 5/22/2018
The CAFÉ – The Edge of Chaos 1.00 p.m. – 2.30 p.m.


AGENDA

1.	Introduction
a.	Cheaha
b.	Hardware  - Compute  & storage 

2.	Logging on – MAC(linux) and Windows (putty)
a.	LOGIN NODE – Do not use

3.	Storage types and moving data – 
a.	$HOME  - 20GB
b.	/data/user/$USER  - 5TB
c.	/data/project/group_name  - 50TB
d.	/data/scratch/$USER -500TB (scratch)

4.	 Partitions – 
a.	policies, time limits
b.	types of jobs – sbatch, sinteractive, srun, salloc
c.	types of nodes – regular/ GPU

5.	Software 
a.	Modules 
b.	Requesting installs
c.	Self install in $HOME

6.	Demo 
a.	Sbatch script 
b.	Sinteractive

7.	 If time permits
a.	Jypyter notebook 
b.	R Studio 

8.	Requesting support – docs wiki, email

9.	Questions 



===Logging ON===
This section will cover steps to configure Windows, Linux and Mac OS X clients to connect to Cheaha.

====Linux====
Linux systems, regardless of the flavor (RedHat, SuSE, Ubuntu, etc...), should already have an SSH client on the system as part of the default install.
# Start a terminal (on RedHat click Applications -> Accessories -> Terminal, on Ubuntu Ctrl+Alt+T)
# At the prompt, enter the following command to connect to Cheaha ('''Replace blazerid with your Cheaha userid''')
 ssh '''blazerid'''@cheaha.rc.uab.edu

====Mac OS X====
Mac OS X is a Unix operating system (BSD) and has a built in ssh client.
# Start a terminal (click Finder, type Terminal and double click on Terminal under the Applications category)
# At the prompt, enter the following command to connect to Cheaha ('''Replace blazerid with your Cheaha userid''')
 ssh '''blazerid'''@cheaha.rc.uab.edu

====Windows====
There are many SSH clients available for Windows, some commercial and some that are free (GPL). This section will cover two clients that are commonly found on UAB Windows systems.

=====PuTTY=====
[http://www.chiark.greenend.org.uk/~sgtatham/putty/ PuTTY] is a free suite of SSH and telnet tools written and maintained by [http://www.pobox.com/~anakin/ Simon Tatham]. PuTTY supports SSH, secure FTP (SFTP), and X forwarding (XTERM) among other tools.

* Start PuTTY (Click START -> All Programs -> PuTTY -> PuTTY). The 'PuTTY Configuration' window will open
* Use these settings for each of the clusters that you would like to configure
{| border="1" cellpadding="5"
!Field
!Cheaha Settings
|-
|'''Host Name (or IP address)'''
|cheaha.rc.uab.edu
|-
|'''Port'''
|22
|-
|'''Protocol'''
|SSH
|-
|'''Saved Sessions'''
|cheaha.rc.uab.edu
|-
|}
* Click '''Save''' to save the configuration, repeat the previous steps for the other clusters
* The next time you start PuTTY, simply double click on the cluster name under the 'Saved Sessions' list