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To connect via the web, you must connect to https://lincompute.cns.utexas.edu/ and select the application you want (R Studio for example). The application will ask you to login using your UT EID username and password.
Using Software
Anaconda3
The system has an Anaconda3 python environment installed. To activate it, assuming the default shell of bash is in use, enter the following command.
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eval "$(/opt/anaconda3/bin/conda shell.bash hook)" |
If you are using another shell other than bash, simply replace “shell.bash” with the appropriate string such as “shell.tcsh”.
Julia
Julia should be available system wide using the /usr/bin/julia (or just “julia”). You shouldn’t have to do anything special to use it.
DS9
DS9 is available at /usr/local/bin/ds9 (you may have to specify the entire path if /usr/local/bin is not in your path). You will need a functioning X11 connection to use DS9 (see the FAQ for more information on X11).
TOPCAT
TOPCAT is available at /usr/local/bin/topcat (you may have to specify the entire path if /usr/local/bin is not in your path). You will need a functioning X11 connection to use TOPCAT (see the FAQ for more information on X11).
JDK (versions 1.8.0 and 21)
By default, the system provides JDK version 1.8.0. This is the system support JDK software. JDK 21 is also installed, and can be accessed manually. To use JDK 21, use the following commands (for bash shell, modify as needed for other shells).
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export JAVA_HOME=/usr/lib/jvm/java-21-openjdk-21.0.3.0.9-1.el8.x86_64
export PATH=/usr/lib/jvm/java-21-openjdk-21.0.3.0.9-1.el8.x86_64/bin:$PATH |
MESA SDK
The Mesa SDK is installed at /opt/mesasdk/. For information on using it, please visit https://www.astro.wisc.edu/~townsend/static.php?ref=mesasdk
Mathematica
Mathematica is available system wide. You will need a functioning X11 connection to use many of the default mathematica interfaces (see the FAQ for more information on X11). You can run mathematica without X11 by invoking it as “math” instead of “mathematica”.
Matlab
Matlab is available system wide. A warning that it can be very slow to startup and/or use. You will need a functioning X11 connection to use many of the default matlab interfaces (see the FAQ for more information on X11). You can run matlab without X11 by invoking it as “matlab -nodisplay -nosplash” (you might also want to use -nojvm if the java vm isn’t needed, as this will speed up the startup).
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Matlab has not yet been verified to work in the various configurations. It is also notoriously slow remotely. Attempt use at your own peril. |
R and R Studio
R is available system wide. It is also available via R Studio by using a web browser and going to https://lincompute.cns.utexas.edu/ (login with your UT EID credentials).
FAQ
Q: Why do I get "Permission denied, please try again" or other error trying to login to the cluster via ssh, or an application via the web?
A: This is usually due to providing the wrong user name or password, or providing the username in the wrong format. Please enter just your UT EID, without any domain information. Also, try entering your UT EID username in all lowercase.
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