Quick Start Guide
The Research Computing Support Group at UTSA provides computing, storage and visualization resources to support research that has specialized or highly intensive computation, storage, bandwidth or graphics requirements. Typical applications include statistics, data analysis, molecular modeling, scientific and engineering simulation and visualization. Research Computing resources and services are widely used by researchers and students alike.
This guide will give you the basics of getting an account and using the Arc cluster.
How to get an Account on Arc
Register with UTSA's Two Factor Authenticatin System (DUO)
Prior to connecting via an SSH terminal application, you must register your MyUTSA
ID with DUO. Instructions can be found at this link
Use a SSH Terminal Application to Login
- For Windows MobaXTerm
- For Mac Terminal Application
- For Linux command line
Once it has been installed, open MobaXTerm
and you will be presented with the main window. Click on "Session"
as shown above
Select your session by clicking on "SSH"
Remote host is "login.arc.utsa.edu
". Click on the box next to "Specify username
" and in the text box enter your campus My UTSA ID. Leave the default port as port 22, then click "Ok
" at the bottom of the window.
After your initial login, you will be prompted with several options for DUO two factor authentication before you will be able to access the system. As long as you have registered your mobile device as described at passphrase.utsa.edu
, and responde to the prompt on your device you will be logged into Arc.
Mac and Linux Terminals
Open your favorite Terminal application. For Mac its "Apps -> Terminal" and on Linux it is the default shell.
After your initial login, you will be prompted with several options for DUO two factor authentication before you will be able to access the system. As long as you have registered your mobile device as described at passphrase.utsa.edu, and responde to the prompt on your device you will be logged into Arc.
If you have successfully logged in, you should see the Message of the Day:
Welcome to the Research Computing cluster Arc.
Rules for using Arc:
* Do *NOT* execute directly on the Arc login node.
Grab a compute node with qlogin or script your jobs with qsub.
* Do *NOT* ssh directly to a compute node to run your code.
Offending users will be locked out temporarily.
We are now gathering statistics to help promote Arc in the UTSA Research
We are looking for the following information:
* Number of presentations and papers published
* Number of grants, awards or funding
* Number of patents, copyrights, etc...
If you have used the computational resources of Arc for any of the above,
please email your information to firstname.lastname@example.org. Thanks!
The login nodes role is to compile software, submit a parallel or batch program to the job queuing system and to gather/analyze results.
Log into your environment
The login node is the node you where can log in to and work from. On the login node you can:
- 05 Apr 2021